From 70cfef26267474f94ff4a988fb45ff78442b1cf4 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Mon, 29 Jun 2015 09:04:43 +0900 Subject: [PATCH 01/70] regulator: Add lockdep asserts to help detecting locking misuse Add lockdep_assert_held_once() to functions explicitly mentioning that rdev or regulator_list mutex must be held. Using WARN_ONCE shouldn't pollute the dmesg to much. The patch (if CONFIG_LOCKDEP enabled) will show warnings in certain regulators calling regulator_notifier_call_chain() without rdev->mutex held. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Mark Brown --- drivers/regulator/core.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index c9f72019bd68..68b616580533 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -640,6 +640,8 @@ static int drms_uA_update(struct regulator_dev *rdev) int current_uA = 0, output_uV, input_uV, err; unsigned int mode; + lockdep_assert_held_once(&rdev->mutex); + /* * first check to see if we can set modes at all, otherwise just * tell the consumer everything is OK. @@ -760,6 +762,8 @@ static int suspend_set_state(struct regulator_dev *rdev, /* locks held by caller */ static int suspend_prepare(struct regulator_dev *rdev, suspend_state_t state) { + lockdep_assert_held_once(&rdev->mutex); + if (!rdev->constraints) return -EINVAL; @@ -1587,6 +1591,8 @@ static void _regulator_put(struct regulator *regulator) if (regulator == NULL || IS_ERR(regulator)) return; + lockdep_assert_held_once(®ulator_list_mutex); + rdev = regulator->rdev; debugfs_remove_recursive(regulator->debugfs); @@ -1965,6 +1971,8 @@ static int _regulator_enable(struct regulator_dev *rdev) { int ret; + lockdep_assert_held_once(&rdev->mutex); + /* check voltage and requested load before enabling */ if (rdev->constraints && (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_DRMS)) @@ -2065,6 +2073,8 @@ static int _regulator_disable(struct regulator_dev *rdev) { int ret = 0; + lockdep_assert_held_once(&rdev->mutex); + if (WARN(rdev->use_count <= 0, "unbalanced disables for %s\n", rdev_get_name(rdev))) return -EIO; @@ -2143,6 +2153,8 @@ static int _regulator_force_disable(struct regulator_dev *rdev) { int ret = 0; + lockdep_assert_held_once(&rdev->mutex); + ret = _notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE | REGULATOR_EVENT_PRE_DISABLE, NULL); if (ret & NOTIFY_STOP_MASK) @@ -3439,6 +3451,8 @@ EXPORT_SYMBOL_GPL(regulator_bulk_free); int regulator_notifier_call_chain(struct regulator_dev *rdev, unsigned long event, void *data) { + lockdep_assert_held_once(&rdev->mutex); + _notifier_call_chain(rdev, event, data); return NOTIFY_DONE; From ec8677267f4ef126275b2e0a429211b256f1a94a Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 7 Jul 2015 19:21:44 +0800 Subject: [PATCH 02/70] regulator: ltc3589: Constify ltc3589_reg_defaults ltc3589_reg_defaults[] is not modified after initialized, so make it const. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/ltc3589.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c index 0ce8e4e0fa73..c31dfa8805d9 100644 --- a/drivers/regulator/ltc3589.c +++ b/drivers/regulator/ltc3589.c @@ -378,7 +378,7 @@ static bool ltc3589_volatile_reg(struct device *dev, unsigned int reg) return false; } -static struct reg_default ltc3589_reg_defaults[] = { +static const struct reg_default ltc3589_reg_defaults[] = { { LTC3589_SCR1, 0x00 }, { LTC3589_OVEN, 0x00 }, { LTC3589_SCR2, 0x00 }, From f9178dad67952673b653315f92620b7a981466e5 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 6 Jul 2015 09:58:29 +0100 Subject: [PATCH 03/70] regulator: pwm-regulator: Separate voltage-table initialisation Take this out of the main .probe() routine in order to facilitate the introduction of different ways to obtain 'duty cycle' information. Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 77 ++++++++++++++++++------------- 1 file changed, 45 insertions(+), 32 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index ffa96124a5e7..25560fc519b7 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -78,8 +78,7 @@ static int pwm_regulator_list_voltage(struct regulator_dev *rdev, return drvdata->duty_cycle_table[selector].uV; } - -static struct regulator_ops pwm_regulator_voltage_ops = { +static struct regulator_ops pwm_regulator_voltage_table_ops = { .set_voltage_sel = pwm_regulator_set_voltage_sel, .get_voltage_sel = pwm_regulator_get_voltage_sel, .list_voltage = pwm_regulator_list_voltage, @@ -88,20 +87,55 @@ static struct regulator_ops pwm_regulator_voltage_ops = { static struct regulator_desc pwm_regulator_desc = { .name = "pwm-regulator", - .ops = &pwm_regulator_voltage_ops, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .supply_name = "pwm", }; +static int pwm_regulator_init_table(struct platform_device *pdev, + struct pwm_regulator_data *drvdata) +{ + struct device_node *np = pdev->dev.of_node; + struct pwm_voltages *duty_cycle_table; + int length; + int ret; + + of_find_property(np, "voltage-table", &length); + + if ((length < sizeof(*duty_cycle_table)) || + (length % sizeof(*duty_cycle_table))) { + dev_err(&pdev->dev, + "voltage-table length(%d) is invalid\n", + length); + return -EINVAL; + } + + duty_cycle_table = devm_kzalloc(&pdev->dev, length, GFP_KERNEL); + if (!duty_cycle_table) + return -ENOMEM; + + ret = of_property_read_u32_array(np, "voltage-table", + (u32 *)duty_cycle_table, + length / sizeof(u32)); + if (ret) { + dev_err(&pdev->dev, "Failed to read voltage-table\n"); + return ret; + } + + drvdata->duty_cycle_table = duty_cycle_table; + pwm_regulator_desc.ops = &pwm_regulator_voltage_table_ops; + pwm_regulator_desc.n_voltages = length / sizeof(*duty_cycle_table); + + return 0; +} + static int pwm_regulator_probe(struct platform_device *pdev) { struct pwm_regulator_data *drvdata; - struct property *prop; struct regulator_dev *regulator; struct regulator_config config = { }; struct device_node *np = pdev->dev.of_node; - int length, ret; + int ret; if (!np) { dev_err(&pdev->dev, "Device Tree node missing\n"); @@ -112,36 +146,15 @@ static int pwm_regulator_probe(struct platform_device *pdev) if (!drvdata) return -ENOMEM; - /* determine the number of voltage-table */ - prop = of_find_property(np, "voltage-table", &length); - if (!prop) { - dev_err(&pdev->dev, "No voltage-table\n"); + if (of_find_property(np, "voltage-table", NULL)) { + ret = pwm_regulator_init_table(pdev, drvdata); + if (ret) + return ret; + } else { + dev_err(&pdev->dev, "No \"voltage-table\" supplied\n"); return -EINVAL; } - if ((length < sizeof(*drvdata->duty_cycle_table)) || - (length % sizeof(*drvdata->duty_cycle_table))) { - dev_err(&pdev->dev, "voltage-table length(%d) is invalid\n", - length); - return -EINVAL; - } - - pwm_regulator_desc.n_voltages = length / sizeof(*drvdata->duty_cycle_table); - - drvdata->duty_cycle_table = devm_kzalloc(&pdev->dev, - length, GFP_KERNEL); - if (!drvdata->duty_cycle_table) - return -ENOMEM; - - /* read voltage table from DT property */ - ret = of_property_read_u32_array(np, "voltage-table", - (u32 *)drvdata->duty_cycle_table, - length / sizeof(u32)); - if (ret < 0) { - dev_err(&pdev->dev, "read voltage-table failed\n"); - return ret; - } - config.init_data = of_get_regulator_init_data(&pdev->dev, np, &pwm_regulator_desc); if (!config.init_data) From 3692db3a904800445f8af249e1ac0f2b6496f31d Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 1 Jul 2015 18:31:43 +0530 Subject: [PATCH 04/70] regulator: max8973: add support to configure ETR from DT The MAX8973/MAX77621 feature an Enhanced Transient Response(ETR) circuit that is enabled through software. The enhanced transient response reduces the voltage droop during large load steps by temporarily allowing all three phases to fire in unison, slewing total inductor current faster than would normally be possible if all three phases continued to operate 120deg out of phase. The enhanced transient response detector features two selectable sensitivity settings, which select the output voltage slew rate during load transients that triggers the ETR circuit. The sensitivity of the ETR detector is set by the CKADV[1:0] bits in the CONTROL2 register. Add support to configure the ETR through platform data from DT. Update the DT binding document accordingly. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown --- .../bindings/regulator/max8973-regulator.txt | 6 ++++++ drivers/regulator/max8973-regulator.c | 19 +++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt index 55efb24e5683..f80ea2fe27e6 100644 --- a/Documentation/devicetree/bindings/regulator/max8973-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/max8973-regulator.txt @@ -25,6 +25,12 @@ Optional properties: -maxim,enable-frequency-shift: boolean, enable 9% frequency shift. -maxim,enable-bias-control: boolean, enable bias control. By enabling this startup delay can be reduce to 20us from 220us. +-maxim,enable-etr: boolean, enable Enhanced Transient Response. +-maxim,enable-high-etr-sensitivity: boolean, Enhanced transient response + circuit is enabled and set for high sensitivity. If this + property is available then etr will be enable default. + +Enhanced transient response (ETR) will affect the configuration of CKADV. Example: diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c index e94ddcf97722..a8fd7f4dd8d8 100644 --- a/drivers/regulator/max8973-regulator.c +++ b/drivers/regulator/max8973-regulator.c @@ -421,6 +421,8 @@ static struct max8973_regulator_platform_data *max8973_parse_dt( struct device_node *np = dev->of_node; int ret; u32 pval; + bool etr_enable; + bool etr_sensitivity_high; pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) @@ -452,6 +454,23 @@ static struct max8973_regulator_platform_data *max8973_parse_dt( if (of_property_read_bool(np, "maxim,enable-bias-control")) pdata->control_flags |= MAX8973_CONTROL_BIAS_ENABLE; + etr_enable = of_property_read_bool(np, "maxim,enable-etr"); + etr_sensitivity_high = of_property_read_bool(np, + "maxim,enable-high-etr-sensitivity"); + if (etr_sensitivity_high) + etr_enable = true; + + if (etr_enable) { + if (etr_sensitivity_high) + pdata->control_flags |= + MAX8973_CONTROL_CLKADV_TRIP_75mV_PER_US; + else + pdata->control_flags |= + MAX8973_CONTROL_CLKADV_TRIP_150mV_PER_US; + } else { + pdata->control_flags |= MAX8973_CONTROL_CLKADV_TRIP_DISABLED; + } + return pdata; } From ffaab99184a2c8b592bba85d8e4da708c65b4cc1 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 1 Jul 2015 18:31:44 +0530 Subject: [PATCH 05/70] regulator: max8973: add support to configure ETR based on rail load Add support to configure Enhanced Transient Response Enable (ETR) and Sensitivity Selection based on maximum current i.e. expected load on that rail. Maxim recommended as: - Enable ETR with high sensitivity (75mV/us) for 0 to 9A expected loads, - Enable ETR with low sensitivity (150mV/us) for 9A to 12A expected loads. - Disable ETR for expected load > 12A. These recommendation will be configured for MAX77621 when maximum load is provided through regulator constraint for maximum current from platform. Signed-off-by: Laxman Dewangan Signed-off-by: Mark Brown --- drivers/regulator/max8973-regulator.c | 52 +++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c index a8fd7f4dd8d8..f67365962b67 100644 --- a/drivers/regulator/max8973-regulator.c +++ b/drivers/regulator/max8973-regulator.c @@ -75,6 +75,7 @@ #define MAX8973_DISCH_ENBABLE BIT(5) #define MAX8973_FT_ENABLE BIT(4) +#define MAX8973_CKKADV_TRIP_MASK 0xC #define MAX8973_CKKADV_TRIP_DISABLE 0xC #define MAX8973_CKKADV_TRIP_75mV_PER_US 0x0 #define MAX8973_CKKADV_TRIP_150mV_PER_US 0x4 @@ -282,6 +283,55 @@ static int max8973_set_ramp_delay(struct regulator_dev *rdev, return ret; } +static int max8973_set_current_limit(struct regulator_dev *rdev, + int min_ua, int max_ua) +{ + struct max8973_chip *max = rdev_get_drvdata(rdev); + unsigned int val; + int ret; + + if (max_ua <= 9000000) + val = MAX8973_CKKADV_TRIP_75mV_PER_US; + else if (max_ua <= 12000000) + val = MAX8973_CKKADV_TRIP_150mV_PER_US; + else + val = MAX8973_CKKADV_TRIP_DISABLE; + + ret = regmap_update_bits(max->regmap, MAX8973_CONTROL2, + MAX8973_CKKADV_TRIP_MASK, val); + if (ret < 0) { + dev_err(max->dev, "register %d update failed: %d\n", + MAX8973_CONTROL2, ret); + return ret; + } + return 0; +} + +static int max8973_get_current_limit(struct regulator_dev *rdev) +{ + struct max8973_chip *max = rdev_get_drvdata(rdev); + unsigned int control2; + int ret; + + ret = regmap_read(max->regmap, MAX8973_CONTROL2, &control2); + if (ret < 0) { + dev_err(max->dev, "register %d read failed: %d\n", + MAX8973_CONTROL2, ret); + return ret; + } + switch (control2 & MAX8973_CKKADV_TRIP_MASK) { + case MAX8973_CKKADV_TRIP_DISABLE: + return 15000000; + case MAX8973_CKKADV_TRIP_150mV_PER_US: + return 12000000; + case MAX8973_CKKADV_TRIP_75mV_PER_US: + return 9000000; + default: + break; + } + return 9000000; +} + static const struct regulator_ops max8973_dcdc_ops = { .get_voltage_sel = max8973_dcdc_get_voltage_sel, .set_voltage_sel = max8973_dcdc_set_voltage_sel, @@ -632,6 +682,8 @@ static int max8973_probe(struct i2c_client *client, max->ops.enable = regulator_enable_regmap; max->ops.disable = regulator_disable_regmap; max->ops.is_enabled = regulator_is_enabled_regmap; + max->ops.set_current_limit = max8973_set_current_limit; + max->ops.get_current_limit = max8973_get_current_limit; break; default: break; From 02258b8bcbb98b28064cc829f7062455da398633 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 7 Jul 2015 16:06:50 +0100 Subject: [PATCH 06/70] regulator: pwm-regulator: Re-write bindings * Add support for continuous-voltage mode * Put more meat on the bones with regards to voltage-table mode * Sort out formatting for ease of consumption Cc: devicetree@vger.kernel.org Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- .../bindings/regulator/pwm-regulator.txt | 68 +++++++++++++++---- 1 file changed, 56 insertions(+), 12 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt index ce91f61feb12..892b36655b3d 100644 --- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt @@ -1,27 +1,71 @@ -pwm regulator bindings +Bindings for the Generic PWM Regulator +====================================== + +Currently supports 2 modes of operation: + +voltage-table: When in this mode, a voltage table (See below) of + predefined voltage <=> duty-cycle values must be + provided via DT. Limitations are that the regulator can + only operate at the voltages supplied in the table. + Intermediary duty-cycle values which would normally + allow finer grained voltage selection are ignored and + rendered useless. Although more control is given to + the user if the assumptions made in continuous-voltage + mode do not reign true. + +continuous-voltage: This mode uses the regulator's maximum and minimum + supplied voltages specified in the + regulator-{min,max}-microvolt properties to calculate + appropriate duty-cycle values. This allows for a much + more fine grained solution when compared with + voltage-table mode above. This solution does make an + assumption that a %50 duty-cycle value will cause the + regulator voltage to run at half way between the + supplied max_uV and min_uV values. Required properties: -- compatible: Should be "pwm-regulator" -- pwms: OF device-tree PWM specification (see PWM binding pwm.txt) -- voltage-table: voltage and duty table, include 2 members in each set of - brackets, first one is voltage(unit: uv), the next is duty(unit: percent) +-------------------- +- compatible: Should be "pwm-regulator" -Any property defined as part of the core regulator binding defined in -regulator.txt can also be used. +- pwms: PWM specification (See: ../pwm/pwm.txt) -Example: +One of these must be provided: +- voltage-table: Voltage and Duty-Cycle table consisting of 2 cells + First cell is voltage in microvolts (uV) + Second cell is duty-cycle in percent (%) + +- max-duty-cycle: Maximum Duty-Cycle value -- this will normally be + 255 (0xff) for an 8 bit PWM device + +If both are provided, the current default is voltage-table mode. + +Any property defined as part of the core regulator binding can also be used. +(See: ../regulator/regulator.txt) + +Continuous Voltage Example: pwm_regulator { compatible = "pwm-regulator; pwms = <&pwm1 0 8448 0>; + regulator-min-microvolt = <1016000>; + regulator-max-microvolt = <1114000>; + regulator-name = "vdd_logic"; + max-duty-cycle = <255>; /* 8bit PWM */ + }; + +Voltage Table Example: + pwm_regulator { + compatible = "pwm-regulator; + pwms = <&pwm1 0 8448 0>; + regulator-min-microvolt = <1016000>; + regulator-max-microvolt = <1114000>; + regulator-name = "vdd_logic"; + + /* Voltage Duty-Cycle */ voltage-table = <1114000 0>, <1095000 10>, <1076000 20>, <1056000 30>, <1036000 40>, <1016000 50>; - - regulator-min-microvolt = <1016000>; - regulator-max-microvolt = <1114000>; - regulator-name = "vdd_logic"; }; From 4773be185a0f7c1c09d8966e100c76f4fa9a3227 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 7 Jul 2015 16:06:51 +0100 Subject: [PATCH 07/70] regulator: pwm-regulator: Add support for continuous-voltage The current version of PWM regulator only supports a static table approach, where pre-calculated values are supplied by the vendor and obtained via DT. The continuous-voltage method takes min_uV and max_uV, and divides the difference between them up into a number of slices. The number of slices depend on how large the duty cycle register is. This information is provided by a DT property. As the name alludes, this provides values for a continuous voltage range between min_uV and max_uV, which has obvious benefits over either limited voltage possibilities, or the requirement to provide a large voltage-table. Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 114 +++++++++++++++++++++++++++--- 1 file changed, 106 insertions(+), 8 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 25560fc519b7..dac145db305c 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include #include #include #include @@ -21,9 +22,16 @@ #include struct pwm_regulator_data { - struct pwm_voltages *duty_cycle_table; + /* Shared */ struct pwm_device *pwm; + + /* Voltage table */ + struct pwm_voltages *duty_cycle_table; int state; + + /* Continuous voltage */ + u32 max_duty_cycle; + int volt_uV; }; struct pwm_voltages { @@ -31,6 +39,9 @@ struct pwm_voltages { unsigned int dutycycle; }; +/** + * Voltage table call-backs + */ static int pwm_regulator_get_voltage_sel(struct regulator_dev *rdev) { struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); @@ -78,6 +89,71 @@ static int pwm_regulator_list_voltage(struct regulator_dev *rdev, return drvdata->duty_cycle_table[selector].uV; } + +/** + * Continuous voltage call-backs + */ +static int pwm_voltage_to_duty_cycle(struct regulator_dev *rdev, + int volt_mV) +{ + struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); + int min_mV = rdev->constraints->min_uV / 1000; + int max_mV = rdev->constraints->max_uV / 1000; + int max_duty_cycle = drvdata->max_duty_cycle; + int vdiff = min_mV - max_mV; + int pwm_code; + int tmp; + + tmp = ((max_duty_cycle - min_mV) * max_duty_cycle) / vdiff; + pwm_code = ((tmp + max_duty_cycle) * volt_mV) / vdiff; + + if (pwm_code < 0) + pwm_code = 0; + if (pwm_code > max_duty_cycle) + pwm_code = max_duty_cycle; + + return pwm_code * 100 / max_duty_cycle; +} + +static int pwm_regulator_get_voltage(struct regulator_dev *rdev) +{ + struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); + + return drvdata->volt_uV; +} + +static int pwm_regulator_set_voltage(struct regulator_dev *rdev, + int min_uV, int max_uV, + unsigned *selector) +{ + struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); + unsigned int ramp_delay = rdev->constraints->ramp_delay; + int duty_cycle; + int ret; + + duty_cycle = pwm_voltage_to_duty_cycle(rdev, min_uV / 1000); + + ret = pwm_config(drvdata->pwm, + (drvdata->pwm->period / 100) * duty_cycle, + drvdata->pwm->period); + if (ret) { + dev_err(&rdev->dev, "Failed to configure PWM\n"); + return ret; + } + + ret = pwm_enable(drvdata->pwm); + if (ret) { + dev_err(&rdev->dev, "Failed to enable PWM\n"); + return ret; + } + drvdata->volt_uV = min_uV; + + /* Delay required by PWM regulator to settle to the new voltage */ + usleep_range(ramp_delay, ramp_delay + 1000); + + return 0; +} + static struct regulator_ops pwm_regulator_voltage_table_ops = { .set_voltage_sel = pwm_regulator_set_voltage_sel, .get_voltage_sel = pwm_regulator_get_voltage_sel, @@ -85,6 +161,11 @@ static struct regulator_ops pwm_regulator_voltage_table_ops = { .map_voltage = regulator_map_voltage_iterate, }; +static struct regulator_ops pwm_regulator_voltage_continuous_ops = { + .get_voltage = pwm_regulator_get_voltage, + .set_voltage = pwm_regulator_set_voltage, +}; + static struct regulator_desc pwm_regulator_desc = { .name = "pwm-regulator", .type = REGULATOR_VOLTAGE, @@ -129,6 +210,25 @@ static int pwm_regulator_init_table(struct platform_device *pdev, return 0; } +static int pwm_regulator_init_continuous(struct platform_device *pdev, + struct pwm_regulator_data *drvdata) +{ + struct device_node *np = pdev->dev.of_node; + int ret; + + ret = of_property_read_u32(np, "max-duty-cycle", + &drvdata->max_duty_cycle); + if (ret) { + dev_err(&pdev->dev, "Failed to read \"pwm-max-value\"\n"); + return ret; + } + + pwm_regulator_desc.ops = &pwm_regulator_voltage_continuous_ops; + pwm_regulator_desc.continuous_voltage_range = true; + + return 0; +} + static int pwm_regulator_probe(struct platform_device *pdev) { struct pwm_regulator_data *drvdata; @@ -146,14 +246,12 @@ static int pwm_regulator_probe(struct platform_device *pdev) if (!drvdata) return -ENOMEM; - if (of_find_property(np, "voltage-table", NULL)) { + if (of_find_property(np, "voltage-table", NULL)) ret = pwm_regulator_init_table(pdev, drvdata); - if (ret) - return ret; - } else { - dev_err(&pdev->dev, "No \"voltage-table\" supplied\n"); - return -EINVAL; - } + else + ret = pwm_regulator_init_continuous(pdev, drvdata); + if (ret) + return ret; config.init_data = of_get_regulator_init_data(&pdev->dev, np, &pwm_regulator_desc); From cae897dec26a9d81dcb5182b13b08450f38d6bde Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 7 Jul 2015 16:06:52 +0100 Subject: [PATCH 08/70] regulator: pwm-regulator: Simplify voltage to duty-cycle call If we reverse some of the logic and change the formula used, we can simplify the function greatly. It is intentional that this function is supplied and then re-worked within the same patch-set. The submission in the previous patch is the tried and tested (i.e. in real releases) method written by ST. This patch contains a simplification provided later. It looks and performs better, but doesn't have the same time-under-test that the original method does. The idea is that we keep some history in order to provide an easy way back i.e. revert. Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 25 ++++++------------------- 1 file changed, 6 insertions(+), 19 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index dac145db305c..d5cb267fa192 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -93,26 +93,13 @@ static int pwm_regulator_list_voltage(struct regulator_dev *rdev, /** * Continuous voltage call-backs */ -static int pwm_voltage_to_duty_cycle(struct regulator_dev *rdev, - int volt_mV) +static int pwm_voltage_to_duty_cycle(struct regulator_dev *rdev, int req_uV) { - struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); - int min_mV = rdev->constraints->min_uV / 1000; - int max_mV = rdev->constraints->max_uV / 1000; - int max_duty_cycle = drvdata->max_duty_cycle; - int vdiff = min_mV - max_mV; - int pwm_code; - int tmp; + int min_uV = rdev->constraints->min_uV; + int max_uV = rdev->constraints->max_uV; + int diff = max_uV - min_uV; - tmp = ((max_duty_cycle - min_mV) * max_duty_cycle) / vdiff; - pwm_code = ((tmp + max_duty_cycle) * volt_mV) / vdiff; - - if (pwm_code < 0) - pwm_code = 0; - if (pwm_code > max_duty_cycle) - pwm_code = max_duty_cycle; - - return pwm_code * 100 / max_duty_cycle; + return 100 - ((((req_uV * 100) - (min_uV * 100)) / diff)); } static int pwm_regulator_get_voltage(struct regulator_dev *rdev) @@ -131,7 +118,7 @@ static int pwm_regulator_set_voltage(struct regulator_dev *rdev, int duty_cycle; int ret; - duty_cycle = pwm_voltage_to_duty_cycle(rdev, min_uV / 1000); + duty_cycle = pwm_voltage_to_duty_cycle(rdev, min_uV); ret = pwm_config(drvdata->pwm, (drvdata->pwm->period / 100) * duty_cycle, From 5ad2cb14f5b8f3cb3d8688115037751b1ff45455 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 7 Jul 2015 16:06:53 +0100 Subject: [PATCH 09/70] regulator: pwm-regulator: Don't assign structure attributes right away Perhaps this is just personal preference, but ... This patch introduces a new local variable to receive and test regulator initialisation data. It simplifies and cleans up the code making it that little bit easier to read and maintain. The local value is assigned to the structure attribute when all the others are. This is the way we usually do things. Prevents this kind of nonsense: this->is->just.silly = fetch_silly_value(&pointer); if (!this->is->just.silly) { printk("Silly value failed: %d\n", this->is->just.silly); return this->is->just.silly; } Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index d5cb267fa192..cb482089050b 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -218,6 +218,7 @@ static int pwm_regulator_init_continuous(struct platform_device *pdev, static int pwm_regulator_probe(struct platform_device *pdev) { + const struct regulator_init_data *init_data; struct pwm_regulator_data *drvdata; struct regulator_dev *regulator; struct regulator_config config = { }; @@ -240,14 +241,15 @@ static int pwm_regulator_probe(struct platform_device *pdev) if (ret) return ret; - config.init_data = of_get_regulator_init_data(&pdev->dev, np, - &pwm_regulator_desc); - if (!config.init_data) + init_data = of_get_regulator_init_data(&pdev->dev, np, + &pwm_regulator_desc); + if (!init_data) return -ENOMEM; config.of_node = np; config.dev = &pdev->dev; config.driver_data = drvdata; + config.init_data = init_data; drvdata->pwm = devm_pwm_get(&pdev->dev, NULL); if (IS_ERR(drvdata->pwm)) { From a505bfb10a0fc6f4342a2521b899d61ff2461e72 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 9 Jul 2015 16:35:26 +0100 Subject: [PATCH 10/70] regulator: pwm-regulator: Ensure headings aren't confused with properties We're using capitalisation and removing the '-' to mitigate confusion. Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/regulator/pwm-regulator.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt index 892b36655b3d..23b47720b2e4 100644 --- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt @@ -3,7 +3,7 @@ Bindings for the Generic PWM Regulator Currently supports 2 modes of operation: -voltage-table: When in this mode, a voltage table (See below) of +Voltage Table: When in this mode, a voltage table (See below) of predefined voltage <=> duty-cycle values must be provided via DT. Limitations are that the regulator can only operate at the voltages supplied in the table. @@ -13,7 +13,7 @@ voltage-table: When in this mode, a voltage table (See below) of the user if the assumptions made in continuous-voltage mode do not reign true. -continuous-voltage: This mode uses the regulator's maximum and minimum +Continuous Voltage: This mode uses the regulator's maximum and minimum supplied voltages specified in the regulator-{min,max}-microvolt properties to calculate appropriate duty-cycle values. This allows for a much From f747a1fe7848453957dbdf362a42d7a6735c6ff0 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 9 Jul 2015 16:35:27 +0100 Subject: [PATCH 11/70] regulator: pwm-regulator: Remove obsoleted property In "[3d7ef30] regulator: pwm-regulator: Simplify voltage to duty-cycle call" we stopped using max_duty_cycle, so we can retire it from device data and DT. There is no need to deprecate this property, as it hasn't hit Mainline yet. Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/pwm-regulator.txt | 11 ++++------- drivers/regulator/pwm-regulator.c | 9 --------- 2 files changed, 4 insertions(+), 16 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt index 23b47720b2e4..ed936f0f34f2 100644 --- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt @@ -29,15 +29,14 @@ Required properties: - pwms: PWM specification (See: ../pwm/pwm.txt) -One of these must be provided: +Only required for Voltage Table Mode: - voltage-table: Voltage and Duty-Cycle table consisting of 2 cells First cell is voltage in microvolts (uV) Second cell is duty-cycle in percent (%) -- max-duty-cycle: Maximum Duty-Cycle value -- this will normally be - 255 (0xff) for an 8 bit PWM device - -If both are provided, the current default is voltage-table mode. +NB: To be clear, if voltage-table is provided, then the device will be used +in Voltage Table Mode. If no voltage-table is provided, then the device will +be used in Continuous Voltage Mode. Any property defined as part of the core regulator binding can also be used. (See: ../regulator/regulator.txt) @@ -49,8 +48,6 @@ Continuous Voltage Example: regulator-min-microvolt = <1016000>; regulator-max-microvolt = <1114000>; regulator-name = "vdd_logic"; - - max-duty-cycle = <255>; /* 8bit PWM */ }; Voltage Table Example: diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index cb482089050b..d92e66772ec0 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -30,7 +30,6 @@ struct pwm_regulator_data { int state; /* Continuous voltage */ - u32 max_duty_cycle; int volt_uV; }; @@ -201,14 +200,6 @@ static int pwm_regulator_init_continuous(struct platform_device *pdev, struct pwm_regulator_data *drvdata) { struct device_node *np = pdev->dev.of_node; - int ret; - - ret = of_property_read_u32(np, "max-duty-cycle", - &drvdata->max_duty_cycle); - if (ret) { - dev_err(&pdev->dev, "Failed to read \"pwm-max-value\"\n"); - return ret; - } pwm_regulator_desc.ops = &pwm_regulator_voltage_continuous_ops; pwm_regulator_desc.continuous_voltage_range = true; From f3f6439d8635d783f145b321db3049369e745799 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 9 Jul 2015 16:35:28 +0100 Subject: [PATCH 12/70] regulator: pwm-regulator: Small clean-ups Remove over-bracketing, use framework API to fetch PWM period and be more forthcoming that pwm_voltage_to_duty_cycle() actually returns duty cycle as a percentage, rather than a register value. Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index d92e66772ec0..936e387cc532 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -92,13 +92,13 @@ static int pwm_regulator_list_voltage(struct regulator_dev *rdev, /** * Continuous voltage call-backs */ -static int pwm_voltage_to_duty_cycle(struct regulator_dev *rdev, int req_uV) +static int pwm_voltage_to_duty_cycle_percentage(struct regulator_dev *rdev, int req_uV) { int min_uV = rdev->constraints->min_uV; int max_uV = rdev->constraints->max_uV; int diff = max_uV - min_uV; - return 100 - ((((req_uV * 100) - (min_uV * 100)) / diff)); + return 100 - (((req_uV * 100) - (min_uV * 100)) / diff); } static int pwm_regulator_get_voltage(struct regulator_dev *rdev) @@ -114,14 +114,13 @@ static int pwm_regulator_set_voltage(struct regulator_dev *rdev, { struct pwm_regulator_data *drvdata = rdev_get_drvdata(rdev); unsigned int ramp_delay = rdev->constraints->ramp_delay; + unsigned int period = pwm_get_period(drvdata->pwm); int duty_cycle; int ret; - duty_cycle = pwm_voltage_to_duty_cycle(rdev, min_uV); + duty_cycle = pwm_voltage_to_duty_cycle_percentage(rdev, min_uV); - ret = pwm_config(drvdata->pwm, - (drvdata->pwm->period / 100) * duty_cycle, - drvdata->pwm->period); + ret = pwm_config(drvdata->pwm, (period / 100) * duty_cycle, period); if (ret) { dev_err(&rdev->dev, "Failed to configure PWM\n"); return ret; From 5d506a5ad4155e813d254d2f02ce17b58045423c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 9 Jul 2015 16:48:50 +0800 Subject: [PATCH 13/70] regulator: qcom_spmi-regulator: Use DIV_ROUND_UP instead of open-coded Signed-off-by: Axel Lin Reviewed-by: Andy Gross Signed-off-by: Mark Brown --- drivers/regulator/qcom_spmi-regulator.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c index 850a30a95b5b..9ef0e2f28ec4 100644 --- a/drivers/regulator/qcom_spmi-regulator.c +++ b/drivers/regulator/qcom_spmi-regulator.c @@ -504,8 +504,7 @@ static int spmi_regulator_select_voltage(struct spmi_regulator *vreg, * Force uV to be an allowed set point by applying a ceiling function to * the uV value. */ - *voltage_sel = (uV - range->min_uV + range->step_uV - 1) - / range->step_uV; + *voltage_sel = DIV_ROUND_UP(uV - range->min_uV, range->step_uV); uV = *voltage_sel * range->step_uV + range->min_uV; if (uV > max_uV) { From f293634b5a9e9acbcc1cac29fac7609bd999f868 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 10 Jul 2015 08:45:34 +0100 Subject: [PATCH 14/70] regulator: pwm-regulator: Fix 'unused-variable' warning drivers/regulator/pwm-regulator.c: In function 'pwm_regulator_init_continuous': drivers/regulator/pwm-regulator.c:202:22: warning: unused variable 'np' [-Wunused-variable] struct device_node *np = pdev->dev.of_node; ^ Reported-by: kbuild test robot Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 936e387cc532..a4c2ce92d41f 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -198,8 +198,6 @@ static int pwm_regulator_init_table(struct platform_device *pdev, static int pwm_regulator_init_continuous(struct platform_device *pdev, struct pwm_regulator_data *drvdata) { - struct device_node *np = pdev->dev.of_node; - pwm_regulator_desc.ops = &pwm_regulator_voltage_continuous_ops; pwm_regulator_desc.continuous_voltage_range = true; From b343e08f3c5623d12829ad4965dd4c4e50f86fa2 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 10 Jul 2015 08:45:35 +0100 Subject: [PATCH 15/70] regulator: pwm-regulator: Fix 'used uninitialized' warning drivers/regulator/pwm-regulator.c: In function 'pwm_regulator_init_table': drivers/regulator/pwm-regulator.c:172:14: warning: 'length' is used uninitialized in this function [-Wuninitialized] if ((length < sizeof(*duty_cycle_table)) || ^ Reported-by: kbuild test robot Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index a4c2ce92d41f..331b85148680 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -163,7 +163,7 @@ static int pwm_regulator_init_table(struct platform_device *pdev, { struct device_node *np = pdev->dev.of_node; struct pwm_voltages *duty_cycle_table; - int length; + int length = 0; int ret; of_find_property(np, "voltage-table", &length); From 60cb65ebf49e6db114c3efeb3971064a6ddbea0e Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 10 Jul 2015 08:45:36 +0100 Subject: [PATCH 16/70] regulator: pwm-regulator: Fix ' comparison between signed and unsigned integer' warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit drivers/regulator/pwm-regulator.c: In function ‘pwm_regulator_init_table’: drivers/regulator/pwm-regulator.c:171:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Lee Jones Signed-off-by: Mark Brown --- drivers/regulator/pwm-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 331b85148680..fc3166dfcbfa 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -163,7 +163,7 @@ static int pwm_regulator_init_table(struct platform_device *pdev, { struct device_node *np = pdev->dev.of_node; struct pwm_voltages *duty_cycle_table; - int length = 0; + unsigned int length = 0; int ret; of_find_property(np, "voltage-table", &length); From 5127e31a6ce04bd41a020c0ba28a1c0915ab6da1 Mon Sep 17 00:00:00 2001 From: "Suzuki K. Poulose" Date: Fri, 10 Jul 2015 16:26:38 +0100 Subject: [PATCH 17/70] regulator: Add missing dummy definition for regulator_list_voltage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes a build break when CONFIG_REGULATOR is not selected. e.g, on linux-next - 07102015: drivers/clk/tegra/clk-dfll.c: In function ‘find_lut_index_for_rate’: drivers/clk/tegra/clk-dfll.c:691:3: error: implicit declaration of function ‘regulator_list_voltage’ [-Werror=implicit-function-declaration] if (regulator_list_voltage(td->vdd_reg, td->i2c_lut[i]) == uv) ^ CC drivers/clocksource/mmio.o CC fs/proc/softirqs.o cc1: some warnings being treated as errors make[3]: *** [drivers/clk/tegra/clk-dfll.o] Error 1 make[2]: *** [drivers/clk/tegra] Error 2 make[1]: *** [drivers/clk] Error 2 make[1]: *** Waiting for unfinished jobs.... This should be pushed to 4.2 as we have the issue in 4.2-rc1, just that nobody uses it without the REGULATOR(yet). Signed-off-by: Suzuki K. Poulose Signed-off-by: Mark Brown --- include/linux/regulator/consumer.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index f8a689ed62a5..2ba4a40919c8 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -550,6 +550,12 @@ static inline int regulator_count_voltages(struct regulator *regulator) { return 0; } + +static inline int regulator_list_voltage(struct regulator *regulator, unsigned selector) +{ + return -EINVAL; +} + #endif static inline int regulator_set_voltage_tol(struct regulator *regulator, From 4245746037e379dc9f1388e422d52001cd431921 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 24 Jun 2015 14:14:21 +0200 Subject: [PATCH 18/70] regulator: da9210: Add optional interrupt support Add optional interrupt support to the da9210 regulator driver, to handle over-current, under- and over-voltage, and over-temperature events. Only the interrupt sources for which we handle events are unmasked, to avoid interrupts we cannot handle. Signed-off-by: Geert Uytterhoeven Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/da9210.txt | 4 + drivers/regulator/da9210-regulator.c | 75 +++++++++++++++++++ 2 files changed, 79 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/da9210.txt b/Documentation/devicetree/bindings/regulator/da9210.txt index 3297c53cb915..7aa9b1fa6b21 100644 --- a/Documentation/devicetree/bindings/regulator/da9210.txt +++ b/Documentation/devicetree/bindings/regulator/da9210.txt @@ -5,6 +5,10 @@ Required properties: - compatible: must be "dlg,da9210" - reg: the i2c slave address of the regulator. It should be 0x68. +Optional properties: + +- interrupts: a reference to the DA9210 interrupt, if available. + Any standard regulator properties can be used to configure the single da9210 DCDC. diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c index f0489cb9018b..8e39f7457bc3 100644 --- a/drivers/regulator/da9210-regulator.c +++ b/drivers/regulator/da9210-regulator.c @@ -22,6 +22,8 @@ #include #include #include +#include +#include #include #include #include @@ -120,6 +122,55 @@ static int da9210_get_current_limit(struct regulator_dev *rdev) return da9210_buck_limits[sel]; } +static irqreturn_t da9210_irq_handler(int irq, void *data) +{ + struct da9210 *chip = data; + unsigned int val, handled = 0; + int error, ret = IRQ_NONE; + + error = regmap_read(chip->regmap, DA9210_REG_EVENT_B, &val); + if (error < 0) + goto error_i2c; + + if (val & DA9210_E_OVCURR) { + regulator_notifier_call_chain(chip->rdev, + REGULATOR_EVENT_OVER_CURRENT, + NULL); + handled |= DA9210_E_OVCURR; + } + if (val & DA9210_E_NPWRGOOD) { + regulator_notifier_call_chain(chip->rdev, + REGULATOR_EVENT_UNDER_VOLTAGE, + NULL); + handled |= DA9210_E_NPWRGOOD; + } + if (val & (DA9210_E_TEMP_WARN | DA9210_E_TEMP_CRIT)) { + regulator_notifier_call_chain(chip->rdev, + REGULATOR_EVENT_OVER_TEMP, NULL); + handled |= val & (DA9210_E_TEMP_WARN | DA9210_E_TEMP_CRIT); + } + if (val & DA9210_E_VMAX) { + regulator_notifier_call_chain(chip->rdev, + REGULATOR_EVENT_REGULATION_OUT, + NULL); + handled |= DA9210_E_VMAX; + } + if (handled) { + /* Clear handled events */ + error = regmap_write(chip->regmap, DA9210_REG_EVENT_B, handled); + if (error < 0) + goto error_i2c; + + ret = IRQ_HANDLED; + } + + return ret; + +error_i2c: + dev_err(regmap_get_device(chip->regmap), "I2C error : %d\n", error); + return ret; +} + /* * I2C driver interface functions */ @@ -168,6 +219,30 @@ static int da9210_i2c_probe(struct i2c_client *i2c, } chip->rdev = rdev; + if (i2c->irq) { + error = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, + da9210_irq_handler, + IRQF_TRIGGER_LOW | + IRQF_ONESHOT | IRQF_SHARED, + "da9210", chip); + if (error) { + dev_err(&i2c->dev, "Failed to request IRQ%u: %d\n", + i2c->irq, error); + return error; + } + + error = regmap_update_bits(chip->regmap, DA9210_REG_MASK_B, + DA9210_M_OVCURR | DA9210_M_NPWRGOOD | + DA9210_M_TEMP_WARN | + DA9210_M_TEMP_CRIT | DA9210_M_VMAX, 0); + if (error < 0) { + dev_err(&i2c->dev, "Failed to update mask reg: %d\n", + error); + return error; + } + } else { + dev_warn(&i2c->dev, "No IRQ configured\n"); + } i2c_set_clientdata(i2c, chip); From 7bd393543287b921f964a350166bf2866527a1b5 Mon Sep 17 00:00:00 2001 From: James Ban Date: Tue, 30 Jun 2015 13:39:39 +0900 Subject: [PATCH 19/70] regulator: da9211: support da9215 This is a patch for supporting da9215 buck converter. Signed-off-by: James Ban Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/da9211.txt | 32 ++++++++++++++- drivers/regulator/Kconfig | 6 +-- drivers/regulator/da9211-regulator.c | 40 ++++++++++++++----- drivers/regulator/da9211-regulator.h | 18 ++++----- include/linux/regulator/da9211.h | 19 ++++----- 5 files changed, 81 insertions(+), 34 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/da9211.txt b/Documentation/devicetree/bindings/regulator/da9211.txt index eb618907c7de..c620493e8dbe 100644 --- a/Documentation/devicetree/bindings/regulator/da9211.txt +++ b/Documentation/devicetree/bindings/regulator/da9211.txt @@ -1,7 +1,7 @@ -* Dialog Semiconductor DA9211/DA9213 Voltage Regulator +* Dialog Semiconductor DA9211/DA9213/DA9215 Voltage Regulator Required properties: -- compatible: "dlg,da9211" or "dlg,da9213". +- compatible: "dlg,da9211" or "dlg,da9213" or "dlg,da9215" - reg: I2C slave address, usually 0x68. - interrupts: the interrupt outputs of the controller - regulators: A node that houses a sub-node for each regulator within the @@ -66,3 +66,31 @@ Example 2) DA9213 }; }; }; + + +Example 3) DA9215 + pmic: da9215@68 { + compatible = "dlg,da9215"; + reg = <0x68>; + interrupts = <3 27>; + + regulators { + BUCKA { + regulator-name = "VBUCKA"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <4000000>; + regulator-max-microamp = <7000000>; + enable-gpios = <&gpio 27 0>; + }; + BUCKB { + regulator-name = "VBUCKB"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <4000000>; + regulator-max-microamp = <7000000>; + enable-gpios = <&gpio 17 0>; + }; + }; + }; + diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index bef3bde6971b..23496da101de 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -209,13 +209,13 @@ config REGULATOR_DA9210 interface. config REGULATOR_DA9211 - tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214 regulator" + tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214/DA9215 regulator" depends on I2C select REGMAP_I2C help Say y here to support for the Dialog Semiconductor DA9211/DA9212 - /DA9213/DA9214. - The DA9211/DA9212/DA9213/DA9214 is a multi-phase synchronous + /DA9213/DA9214/DA9215. + The DA9211/DA9212/DA9213/DA9214/DA9215 is a multi-phase synchronous step down converter 12A or 16A DC-DC Buck controlled through an I2C interface. diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index df79e4b1946e..0858100d2d03 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -1,6 +1,6 @@ /* - * da9211-regulator.c - Regulator device driver for DA9211/DA9213 - * Copyright (C) 2014 Dialog Semiconductor Ltd. + * da9211-regulator.c - Regulator device driver for DA9211/DA9213/DA9215 + * Copyright (C) 2015 Dialog Semiconductor Ltd. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public @@ -32,6 +32,7 @@ /* DEVICE IDs */ #define DA9211_DEVICE_ID 0x22 #define DA9213_DEVICE_ID 0x23 +#define DA9215_DEVICE_ID 0x24 #define DA9211_BUCK_MODE_SLEEP 1 #define DA9211_BUCK_MODE_SYNC 2 @@ -90,6 +91,13 @@ static const int da9213_current_limits[] = { 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 }; +/* Current limits for DA9215 buck (uA) indices + * corresponds with register values + */ +static const int da9215_current_limits[] = { + 4000000, 4200000, 4400000, 4600000, 4800000, 5000000, 5200000, 5400000, + 5600000, 5800000, 6000000, 6200000, 6400000, 6600000, 6800000, 7000000 +}; static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev) { @@ -157,6 +165,10 @@ static int da9211_set_current_limit(struct regulator_dev *rdev, int min, current_limits = da9213_current_limits; max_size = ARRAY_SIZE(da9213_current_limits)-1; break; + case DA9215: + current_limits = da9215_current_limits; + max_size = ARRAY_SIZE(da9215_current_limits)-1; + break; default: return -EINVAL; } @@ -189,6 +201,9 @@ static int da9211_get_current_limit(struct regulator_dev *rdev) case DA9213: current_limits = da9213_current_limits; break; + case DA9215: + current_limits = da9215_current_limits; + break; default: return -EINVAL; } @@ -350,13 +365,11 @@ static int da9211_regulator_init(struct da9211 *chip) /* If configuration for 1/2 bucks is different between platform data * and the register, driver should exit. */ - if ((chip->pdata->num_buck == 2 && data == 0x40) - || (chip->pdata->num_buck == 1 && data == 0x00)) { - if (data == 0) - chip->num_regulator = 1; - else - chip->num_regulator = 2; - } else { + if (chip->pdata->num_buck == 1 && data == 0x00) + chip->num_regulator = 1; + else if (chip->pdata->num_buck == 2 && data != 0x00) + chip->num_regulator = 2; + else { dev_err(chip->dev, "Configuration is mismatched\n"); return -EINVAL; } @@ -438,6 +451,9 @@ static int da9211_i2c_probe(struct i2c_client *i2c, case DA9213_DEVICE_ID: chip->chip_id = DA9213; break; + case DA9215_DEVICE_ID: + chip->chip_id = DA9215; + break; default: dev_err(chip->dev, "Unsupported device id = 0x%x.\n", data); return -ENODEV; @@ -478,6 +494,7 @@ static int da9211_i2c_probe(struct i2c_client *i2c, static const struct i2c_device_id da9211_i2c_id[] = { {"da9211", DA9211}, {"da9213", DA9213}, + {"da9215", DA9215}, {}, }; MODULE_DEVICE_TABLE(i2c, da9211_i2c_id); @@ -486,6 +503,7 @@ MODULE_DEVICE_TABLE(i2c, da9211_i2c_id); static const struct of_device_id da9211_dt_ids[] = { { .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] }, { .compatible = "dlg,da9213", .data = &da9211_i2c_id[1] }, + { .compatible = "dlg,da9215", .data = &da9211_i2c_id[2] }, {}, }; MODULE_DEVICE_TABLE(of, da9211_dt_ids); @@ -504,5 +522,5 @@ static struct i2c_driver da9211_regulator_driver = { module_i2c_driver(da9211_regulator_driver); MODULE_AUTHOR("James Ban "); -MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211/DA9213"); -MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211/DA9213/DA9215"); +MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/da9211-regulator.h b/drivers/regulator/da9211-regulator.h index 93fa9df2721c..d6ad96fc64d3 100644 --- a/drivers/regulator/da9211-regulator.h +++ b/drivers/regulator/da9211-regulator.h @@ -1,16 +1,16 @@ /* - * da9211-regulator.h - Regulator definitions for DA9211/DA9213 - * Copyright (C) 2014 Dialog Semiconductor Ltd. + * da9211-regulator.h - Regulator definitions for DA9211/DA9213/DA9215 + * Copyright (C) 2015 Dialog Semiconductor Ltd. * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. * - * This library is distributed in the hope that it will be useful, + * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #ifndef __DA9211_REGISTERS_H__ diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h index 5dd65acc2a69..a43a5ca1167b 100644 --- a/include/linux/regulator/da9211.h +++ b/include/linux/regulator/da9211.h @@ -1,16 +1,16 @@ /* - * da9211.h - Regulator device driver for DA9211/DA9213 - * Copyright (C) 2014 Dialog Semiconductor Ltd. + * da9211.h - Regulator device driver for DA9211/DA9213/DA9215 + * Copyright (C) 2015 Dialog Semiconductor Ltd. * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. * - * This library is distributed in the hope that it will be useful, + * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. */ #ifndef __LINUX_REGULATOR_DA9211_H @@ -23,6 +23,7 @@ enum da9211_chip_id { DA9211, DA9213, + DA9215, }; struct da9211_pdata { From 736050c4c11a4907d381672d5396485045d78bab Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 10 Jul 2015 14:44:01 +0900 Subject: [PATCH 20/70] regulator: da9062: Drop owner assignment from platform_driver platform_driver does not need to set an owner because platform_driver_register() will set it. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Mark Brown --- drivers/regulator/da9062-regulator.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/regulator/da9062-regulator.c b/drivers/regulator/da9062-regulator.c index dd76da09b3c7..5638fe8d759d 100644 --- a/drivers/regulator/da9062-regulator.c +++ b/drivers/regulator/da9062-regulator.c @@ -818,7 +818,6 @@ static int da9062_regulator_probe(struct platform_device *pdev) static struct platform_driver da9062_regulator_driver = { .driver = { .name = "da9062-regulators", - .owner = THIS_MODULE, }, .probe = da9062_regulator_probe, }; From a807a6cc29115a9a43c168fc0d4540b3d9284815 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 10 Jul 2015 14:44:00 +0900 Subject: [PATCH 21/70] regulator: drivers: Drop owner assignment from i2c_driver i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Mark Brown --- drivers/regulator/act8865-regulator.c | 1 - drivers/regulator/da9210-regulator.c | 1 - drivers/regulator/da9211-regulator.c | 1 - drivers/regulator/isl6271a-regulator.c | 1 - drivers/regulator/isl9305.c | 1 - drivers/regulator/lp3971.c | 1 - drivers/regulator/lp3972.c | 1 - drivers/regulator/lp872x.c | 1 - drivers/regulator/ltc3589.c | 1 - drivers/regulator/max1586.c | 1 - drivers/regulator/max8660.c | 1 - drivers/regulator/max8973-regulator.c | 1 - drivers/regulator/pfuze100-regulator.c | 1 - drivers/regulator/tps51632-regulator.c | 1 - drivers/regulator/tps62360-regulator.c | 1 - drivers/regulator/tps65023-regulator.c | 1 - 16 files changed, 16 deletions(-) diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c index 2ff73d72ca34..896db168e4bd 100644 --- a/drivers/regulator/act8865-regulator.c +++ b/drivers/regulator/act8865-regulator.c @@ -530,7 +530,6 @@ MODULE_DEVICE_TABLE(i2c, act8865_ids); static struct i2c_driver act8865_pmic_driver = { .driver = { .name = "act8865", - .owner = THIS_MODULE, }, .probe = act8865_pmic_probe, .id_table = act8865_ids, diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c index f0489cb9018b..143a6621b44f 100644 --- a/drivers/regulator/da9210-regulator.c +++ b/drivers/regulator/da9210-regulator.c @@ -184,7 +184,6 @@ MODULE_DEVICE_TABLE(i2c, da9210_i2c_id); static struct i2c_driver da9210_regulator_driver = { .driver = { .name = "da9210", - .owner = THIS_MODULE, }, .probe = da9210_i2c_probe, .id_table = da9210_i2c_id, diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index df79e4b1946e..ab8914f280c7 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -494,7 +494,6 @@ MODULE_DEVICE_TABLE(of, da9211_dt_ids); static struct i2c_driver da9211_regulator_driver = { .driver = { .name = "da9211", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(da9211_dt_ids), }, .probe = da9211_i2c_probe, diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c index 6e5da95fa025..4abd8e9c81e5 100644 --- a/drivers/regulator/isl6271a-regulator.c +++ b/drivers/regulator/isl6271a-regulator.c @@ -156,7 +156,6 @@ MODULE_DEVICE_TABLE(i2c, isl6271a_id); static struct i2c_driver isl6271a_i2c_driver = { .driver = { .name = "isl6271a", - .owner = THIS_MODULE, }, .probe = isl6271a_probe, .id_table = isl6271a_id, diff --git a/drivers/regulator/isl9305.c b/drivers/regulator/isl9305.c index 6e3a15fe00f1..eae9d1ffe641 100644 --- a/drivers/regulator/isl9305.c +++ b/drivers/regulator/isl9305.c @@ -195,7 +195,6 @@ MODULE_DEVICE_TABLE(i2c, isl9305_i2c_id); static struct i2c_driver isl9305_regulator_driver = { .driver = { .name = "isl9305", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(isl9305_dt_ids), }, .probe = isl9305_i2c_probe, diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c index 66fd2330dca0..15c25c622edf 100644 --- a/drivers/regulator/lp3971.c +++ b/drivers/regulator/lp3971.c @@ -452,7 +452,6 @@ MODULE_DEVICE_TABLE(i2c, lp3971_i2c_id); static struct i2c_driver lp3971_i2c_driver = { .driver = { .name = "LP3971", - .owner = THIS_MODULE, }, .probe = lp3971_i2c_probe, .id_table = lp3971_i2c_id, diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c index aea485afcc1a..3a7e96e2c7b3 100644 --- a/drivers/regulator/lp3972.c +++ b/drivers/regulator/lp3972.c @@ -550,7 +550,6 @@ MODULE_DEVICE_TABLE(i2c, lp3972_i2c_id); static struct i2c_driver lp3972_i2c_driver = { .driver = { .name = "lp3972", - .owner = THIS_MODULE, }, .probe = lp3972_i2c_probe, .id_table = lp3972_i2c_id, diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index 3de328ab41f3..171c7625dd67 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -955,7 +955,6 @@ MODULE_DEVICE_TABLE(i2c, lp872x_ids); static struct i2c_driver lp872x_driver = { .driver = { .name = "lp872x", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(lp872x_dt_ids), }, .probe = lp872x_probe, diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c index 0ce8e4e0fa73..6e79d2e8963d 100644 --- a/drivers/regulator/ltc3589.c +++ b/drivers/regulator/ltc3589.c @@ -542,7 +542,6 @@ MODULE_DEVICE_TABLE(i2c, ltc3589_i2c_id); static struct i2c_driver ltc3589_driver = { .driver = { .name = DRIVER_NAME, - .owner = THIS_MODULE, }, .probe = ltc3589_probe, .id_table = ltc3589_i2c_id, diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c index d2a8c64cae42..2c1228d5796a 100644 --- a/drivers/regulator/max1586.c +++ b/drivers/regulator/max1586.c @@ -304,7 +304,6 @@ static struct i2c_driver max1586_pmic_driver = { .probe = max1586_pmic_probe, .driver = { .name = "max1586", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(max1586_of_match), }, .id_table = max1586_id, diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c index 4071d74fa828..b87f62dd484e 100644 --- a/drivers/regulator/max8660.c +++ b/drivers/regulator/max8660.c @@ -518,7 +518,6 @@ static struct i2c_driver max8660_driver = { .probe = max8660_probe, .driver = { .name = "max8660", - .owner = THIS_MODULE, }, .id_table = max8660_id, }; diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c index 6f2bdad8b4d8..399a85bc907e 100644 --- a/drivers/regulator/max8973-regulator.c +++ b/drivers/regulator/max8973-regulator.c @@ -652,7 +652,6 @@ static struct i2c_driver max8973_i2c_driver = { .driver = { .name = "max8973", .of_match_table = of_max8973_match_tbl, - .owner = THIS_MODULE, }, .probe = max8973_probe, .id_table = max8973_id, diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c index 8cc8d1877c44..2f66821d53cb 100644 --- a/drivers/regulator/pfuze100-regulator.c +++ b/drivers/regulator/pfuze100-regulator.c @@ -643,7 +643,6 @@ static struct i2c_driver pfuze_driver = { .id_table = pfuze_device_id, .driver = { .name = "pfuze100-regulator", - .owner = THIS_MODULE, .of_match_table = pfuze_dt_ids, }, .probe = pfuze100_regulator_probe, diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c index c213e37eb69e..572816e30095 100644 --- a/drivers/regulator/tps51632-regulator.c +++ b/drivers/regulator/tps51632-regulator.c @@ -362,7 +362,6 @@ MODULE_DEVICE_TABLE(i2c, tps51632_id); static struct i2c_driver tps51632_i2c_driver = { .driver = { .name = "tps51632", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(tps51632_of_match), }, .probe = tps51632_probe, diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c index a1fd626c6c96..f6a6d36a6533 100644 --- a/drivers/regulator/tps62360-regulator.c +++ b/drivers/regulator/tps62360-regulator.c @@ -515,7 +515,6 @@ MODULE_DEVICE_TABLE(i2c, tps62360_id); static struct i2c_driver tps62360_i2c_driver = { .driver = { .name = "tps62360", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(tps62360_of_match), }, .probe = tps62360_probe, diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index b941e564b3f3..5cc19b44974a 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -410,7 +410,6 @@ MODULE_DEVICE_TABLE(i2c, tps_65023_id); static struct i2c_driver tps_65023_i2c_driver = { .driver = { .name = "tps65023", - .owner = THIS_MODULE, }, .probe = tps_65023_probe, .id_table = tps_65023_id, From 4d45c70bfb3ffe55fad1d1681feaec2094f4da3b Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Thu, 16 Jul 2015 23:46:54 +0530 Subject: [PATCH 22/70] regulator: 88pm800: Fix indentation of assignments of data structures This patch makes code more clean from readability point of view, make all assignments of LDO, BUCk and regulator_ops structure at the same indentation. Signed-off-by: Vaibhav Hiremath Signed-off-by: Mark Brown --- drivers/regulator/88pm800.c | 68 ++++++++++++++++++------------------- 1 file changed, 34 insertions(+), 34 deletions(-) diff --git a/drivers/regulator/88pm800.c b/drivers/regulator/88pm800.c index 832932bdc977..11f7ab22ff88 100644 --- a/drivers/regulator/88pm800.c +++ b/drivers/regulator/88pm800.c @@ -95,11 +95,11 @@ struct pm800_regulators { #define PM800_BUCK(vreg, ereg, ebit, amax, volt_ranges, n_volt) \ { \ .desc = { \ - .name = #vreg, \ - .ops = &pm800_volt_range_ops, \ - .type = REGULATOR_VOLTAGE, \ - .id = PM800_ID_##vreg, \ - .owner = THIS_MODULE, \ + .name = #vreg, \ + .ops = &pm800_volt_range_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PM800_ID_##vreg, \ + .owner = THIS_MODULE, \ .n_voltages = n_volt, \ .linear_ranges = volt_ranges, \ .n_linear_ranges = ARRAY_SIZE(volt_ranges), \ @@ -108,7 +108,7 @@ struct pm800_regulators { .enable_reg = PM800_##ereg, \ .enable_mask = 1 << (ebit), \ }, \ - .max_ua = (amax), \ + .max_ua = (amax), \ } /* @@ -123,19 +123,19 @@ struct pm800_regulators { #define PM800_LDO(vreg, ereg, ebit, amax, ldo_volt_table) \ { \ .desc = { \ - .name = #vreg, \ - .ops = &pm800_volt_table_ops, \ - .type = REGULATOR_VOLTAGE, \ - .id = PM800_ID_##vreg, \ - .owner = THIS_MODULE, \ - .n_voltages = ARRAY_SIZE(ldo_volt_table), \ - .vsel_reg = PM800_##vreg##_VOUT, \ - .vsel_mask = 0x1f, \ - .enable_reg = PM800_##ereg, \ - .enable_mask = 1 << (ebit), \ - .volt_table = ldo_volt_table, \ + .name = #vreg, \ + .ops = &pm800_volt_table_ops, \ + .type = REGULATOR_VOLTAGE, \ + .id = PM800_ID_##vreg, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(ldo_volt_table), \ + .vsel_reg = PM800_##vreg##_VOUT, \ + .vsel_mask = 0x1f, \ + .enable_reg = PM800_##ereg, \ + .enable_mask = 1 << (ebit), \ + .volt_table = ldo_volt_table, \ }, \ - .max_ua = (amax), \ + .max_ua = (amax), \ } /* Ranges are sorted in ascending order. */ @@ -178,25 +178,25 @@ static int pm800_get_current_limit(struct regulator_dev *rdev) } static struct regulator_ops pm800_volt_range_ops = { - .list_voltage = regulator_list_voltage_linear_range, - .map_voltage = regulator_map_voltage_linear_range, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .is_enabled = regulator_is_enabled_regmap, - .get_current_limit = pm800_get_current_limit, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_current_limit = pm800_get_current_limit, }; static struct regulator_ops pm800_volt_table_ops = { - .list_voltage = regulator_list_voltage_table, - .map_voltage = regulator_map_voltage_iterate, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .is_enabled = regulator_is_enabled_regmap, - .get_current_limit = pm800_get_current_limit, + .list_voltage = regulator_list_voltage_table, + .map_voltage = regulator_map_voltage_iterate, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_current_limit = pm800_get_current_limit, }; /* The array is indexed by id(PM800_ID_XXX) */ From a07d94a54b93d94d8cb990ffe018c595cfb94662 Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Thu, 16 Jul 2015 23:46:55 +0530 Subject: [PATCH 23/70] regulator: 88pm800: Update driver to use devm_regulator_register fn This patch replaces standard regulator_register with devm_regulator_register() fn, as using devm_regulator_register() fn simplifies the driver return/exit path. As part of this update, patch also cleanups up all unnecessary changes which is result of this patch - - Remove _remove() fn, as devm_ variant takes care of it. - Remove pm800_regulators.regulators[] field, as it was only needed during cleanup, so we no longer need this. This also saved some amount of memory. Signed-off-by: Vaibhav Hiremath Signed-off-by: Mark Brown --- drivers/regulator/88pm800.c | 27 ++++++--------------------- 1 file changed, 6 insertions(+), 21 deletions(-) diff --git a/drivers/regulator/88pm800.c b/drivers/regulator/88pm800.c index 11f7ab22ff88..3b371701093d 100644 --- a/drivers/regulator/88pm800.c +++ b/drivers/regulator/88pm800.c @@ -78,7 +78,6 @@ struct pm800_regulator_info { }; struct pm800_regulators { - struct regulator_dev *regulators[PM800_ID_RG_MAX]; struct pm80x_chip *chip; struct regmap *map; }; @@ -318,6 +317,8 @@ static int pm800_regulator_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pm800_data); for (i = 0; i < PM800_ID_RG_MAX; i++) { + struct regulator_dev *regulator; + if (!pdata || pdata->num_regulators == 0) init_data = pm800_regulator_matches[i].init_data; else @@ -331,16 +332,12 @@ static int pm800_regulator_probe(struct platform_device *pdev) config.regmap = pm800_data->map; config.of_node = pm800_regulator_matches[i].of_node; - pm800_data->regulators[i] = - regulator_register(&info->desc, &config); - if (IS_ERR(pm800_data->regulators[i])) { - ret = PTR_ERR(pm800_data->regulators[i]); + regulator = devm_regulator_register(&pdev->dev, + &info->desc, &config); + if (IS_ERR(regulator)) { + ret = PTR_ERR(regulator); dev_err(&pdev->dev, "Failed to register %s\n", info->desc.name); - - while (--i >= 0) - regulator_unregister(pm800_data->regulators[i]); - return ret; } } @@ -348,23 +345,11 @@ static int pm800_regulator_probe(struct platform_device *pdev) return 0; } -static int pm800_regulator_remove(struct platform_device *pdev) -{ - struct pm800_regulators *pm800_data = platform_get_drvdata(pdev); - int i; - - for (i = 0; i < PM800_ID_RG_MAX; i++) - regulator_unregister(pm800_data->regulators[i]); - - return 0; -} - static struct platform_driver pm800_regulator_driver = { .driver = { .name = "88pm80x-regulator", }, .probe = pm800_regulator_probe, - .remove = pm800_regulator_remove, }; module_platform_driver(pm800_regulator_driver); From fa26e4d2b3cf1c84f20fbc003501bb028f682d92 Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Thu, 16 Jul 2015 23:46:56 +0530 Subject: [PATCH 24/70] regulator: 88pm800: Use regulator_nodes/of_match in the descriptor This patch is add regulator_nodes/of_match in the regulator descriptor for using information from DT instead of specific codes. With this patch, driver gets simplified, - No need to maintain "struct of_regulator_match" table and call of_regulator_match() fn. - No need for pm800_regulator_dt_init() fn, as it was only used for of_regulator_match(). - probe() fn got simplified around regulator_config and regulator_desc initialization. Signed-off-by: Vaibhav Hiremath Signed-off-by: Mark Brown --- drivers/regulator/88pm800.c | 141 +++++++++++------------------------- 1 file changed, 43 insertions(+), 98 deletions(-) diff --git a/drivers/regulator/88pm800.c b/drivers/regulator/88pm800.c index 3b371701093d..26c277f7c98e 100644 --- a/drivers/regulator/88pm800.c +++ b/drivers/regulator/88pm800.c @@ -91,10 +91,12 @@ struct pm800_regulators { * not the constant voltage table. * n_volt - Number of available selectors */ -#define PM800_BUCK(vreg, ereg, ebit, amax, volt_ranges, n_volt) \ +#define PM800_BUCK(match, vreg, ereg, ebit, amax, volt_ranges, n_volt) \ { \ .desc = { \ .name = #vreg, \ + .of_match = of_match_ptr(#match), \ + .regulators_node = of_match_ptr("regulators"), \ .ops = &pm800_volt_range_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PM800_ID_##vreg, \ @@ -119,10 +121,12 @@ struct pm800_regulators { * For all the LDOes, there are too many ranges. Using volt_table will be * simpler and faster. */ -#define PM800_LDO(vreg, ereg, ebit, amax, ldo_volt_table) \ +#define PM800_LDO(match, vreg, ereg, ebit, amax, ldo_volt_table) \ { \ .desc = { \ .name = #vreg, \ + .of_match = of_match_ptr(#match), \ + .regulators_node = of_match_ptr("regulators"), \ .ops = &pm800_volt_table_ops, \ .type = REGULATOR_VOLTAGE, \ .id = PM800_ID_##vreg, \ @@ -200,99 +204,43 @@ static struct regulator_ops pm800_volt_table_ops = { /* The array is indexed by id(PM800_ID_XXX) */ static struct pm800_regulator_info pm800_regulator_info[] = { - PM800_BUCK(BUCK1, BUCK_ENA, 0, 3000000, buck1_volt_range, 0x55), - PM800_BUCK(BUCK2, BUCK_ENA, 1, 1200000, buck2_5_volt_range, 0x73), - PM800_BUCK(BUCK3, BUCK_ENA, 2, 1200000, buck2_5_volt_range, 0x73), - PM800_BUCK(BUCK4, BUCK_ENA, 3, 1200000, buck2_5_volt_range, 0x73), - PM800_BUCK(BUCK5, BUCK_ENA, 4, 1200000, buck2_5_volt_range, 0x73), + PM800_BUCK(buck1, BUCK1, BUCK_ENA, 0, 3000000, buck1_volt_range, 0x55), + PM800_BUCK(buck2, BUCK2, BUCK_ENA, 1, 1200000, buck2_5_volt_range, 0x73), + PM800_BUCK(buck3, BUCK3, BUCK_ENA, 2, 1200000, buck2_5_volt_range, 0x73), + PM800_BUCK(buck4, BUCK4, BUCK_ENA, 3, 1200000, buck2_5_volt_range, 0x73), + PM800_BUCK(buck5, BUCK5, BUCK_ENA, 4, 1200000, buck2_5_volt_range, 0x73), - PM800_LDO(LDO1, LDO_ENA1_1, 0, 200000, ldo1_volt_table), - PM800_LDO(LDO2, LDO_ENA1_1, 1, 10000, ldo2_volt_table), - PM800_LDO(LDO3, LDO_ENA1_1, 2, 300000, ldo3_17_volt_table), - PM800_LDO(LDO4, LDO_ENA1_1, 3, 300000, ldo3_17_volt_table), - PM800_LDO(LDO5, LDO_ENA1_1, 4, 300000, ldo3_17_volt_table), - PM800_LDO(LDO6, LDO_ENA1_1, 5, 300000, ldo3_17_volt_table), - PM800_LDO(LDO7, LDO_ENA1_1, 6, 300000, ldo3_17_volt_table), - PM800_LDO(LDO8, LDO_ENA1_1, 7, 300000, ldo3_17_volt_table), - PM800_LDO(LDO9, LDO_ENA1_2, 0, 300000, ldo3_17_volt_table), - PM800_LDO(LDO10, LDO_ENA1_2, 1, 300000, ldo3_17_volt_table), - PM800_LDO(LDO11, LDO_ENA1_2, 2, 300000, ldo3_17_volt_table), - PM800_LDO(LDO12, LDO_ENA1_2, 3, 300000, ldo3_17_volt_table), - PM800_LDO(LDO13, LDO_ENA1_2, 4, 300000, ldo3_17_volt_table), - PM800_LDO(LDO14, LDO_ENA1_2, 5, 300000, ldo3_17_volt_table), - PM800_LDO(LDO15, LDO_ENA1_2, 6, 300000, ldo3_17_volt_table), - PM800_LDO(LDO16, LDO_ENA1_2, 7, 300000, ldo3_17_volt_table), - PM800_LDO(LDO17, LDO_ENA1_3, 0, 300000, ldo3_17_volt_table), - PM800_LDO(LDO18, LDO_ENA1_3, 1, 200000, ldo18_19_volt_table), - PM800_LDO(LDO19, LDO_ENA1_3, 2, 200000, ldo18_19_volt_table), + PM800_LDO(ldo1, LDO1, LDO_ENA1_1, 0, 200000, ldo1_volt_table), + PM800_LDO(ldo2, LDO2, LDO_ENA1_1, 1, 10000, ldo2_volt_table), + PM800_LDO(ldo3, LDO3, LDO_ENA1_1, 2, 300000, ldo3_17_volt_table), + PM800_LDO(ldo4, LDO4, LDO_ENA1_1, 3, 300000, ldo3_17_volt_table), + PM800_LDO(ldo5, LDO5, LDO_ENA1_1, 4, 300000, ldo3_17_volt_table), + PM800_LDO(ldo6, LDO6, LDO_ENA1_1, 5, 300000, ldo3_17_volt_table), + PM800_LDO(ldo7, LDO7, LDO_ENA1_1, 6, 300000, ldo3_17_volt_table), + PM800_LDO(ldo8, LDO8, LDO_ENA1_1, 7, 300000, ldo3_17_volt_table), + PM800_LDO(ldo9, LDO9, LDO_ENA1_2, 0, 300000, ldo3_17_volt_table), + PM800_LDO(ldo10, LDO10, LDO_ENA1_2, 1, 300000, ldo3_17_volt_table), + PM800_LDO(ldo11, LDO11, LDO_ENA1_2, 2, 300000, ldo3_17_volt_table), + PM800_LDO(ldo12, LDO12, LDO_ENA1_2, 3, 300000, ldo3_17_volt_table), + PM800_LDO(ldo13, LDO13, LDO_ENA1_2, 4, 300000, ldo3_17_volt_table), + PM800_LDO(ldo14, LDO14, LDO_ENA1_2, 5, 300000, ldo3_17_volt_table), + PM800_LDO(ldo15, LDO15, LDO_ENA1_2, 6, 300000, ldo3_17_volt_table), + PM800_LDO(ldo16, LDO16, LDO_ENA1_2, 7, 300000, ldo3_17_volt_table), + PM800_LDO(ldo17, LDO17, LDO_ENA1_3, 0, 300000, ldo3_17_volt_table), + PM800_LDO(ldo18, LDO18, LDO_ENA1_3, 1, 200000, ldo18_19_volt_table), + PM800_LDO(ldo19, LDO19, LDO_ENA1_3, 2, 200000, ldo18_19_volt_table), }; -#define PM800_REGULATOR_OF_MATCH(_name, _id) \ - [PM800_ID_##_id] = { \ - .name = #_name, \ - .driver_data = &pm800_regulator_info[PM800_ID_##_id], \ - } - -static struct of_regulator_match pm800_regulator_matches[] = { - PM800_REGULATOR_OF_MATCH(buck1, BUCK1), - PM800_REGULATOR_OF_MATCH(buck2, BUCK2), - PM800_REGULATOR_OF_MATCH(buck3, BUCK3), - PM800_REGULATOR_OF_MATCH(buck4, BUCK4), - PM800_REGULATOR_OF_MATCH(buck5, BUCK5), - PM800_REGULATOR_OF_MATCH(ldo1, LDO1), - PM800_REGULATOR_OF_MATCH(ldo2, LDO2), - PM800_REGULATOR_OF_MATCH(ldo3, LDO3), - PM800_REGULATOR_OF_MATCH(ldo4, LDO4), - PM800_REGULATOR_OF_MATCH(ldo5, LDO5), - PM800_REGULATOR_OF_MATCH(ldo6, LDO6), - PM800_REGULATOR_OF_MATCH(ldo7, LDO7), - PM800_REGULATOR_OF_MATCH(ldo8, LDO8), - PM800_REGULATOR_OF_MATCH(ldo9, LDO9), - PM800_REGULATOR_OF_MATCH(ldo10, LDO10), - PM800_REGULATOR_OF_MATCH(ldo11, LDO11), - PM800_REGULATOR_OF_MATCH(ldo12, LDO12), - PM800_REGULATOR_OF_MATCH(ldo13, LDO13), - PM800_REGULATOR_OF_MATCH(ldo14, LDO14), - PM800_REGULATOR_OF_MATCH(ldo15, LDO15), - PM800_REGULATOR_OF_MATCH(ldo16, LDO16), - PM800_REGULATOR_OF_MATCH(ldo17, LDO17), - PM800_REGULATOR_OF_MATCH(ldo18, LDO18), - PM800_REGULATOR_OF_MATCH(ldo19, LDO19), -}; - -static int pm800_regulator_dt_init(struct platform_device *pdev) -{ - struct device_node *np = pdev->dev.of_node; - int ret; - - ret = of_regulator_match(&pdev->dev, np, - pm800_regulator_matches, - ARRAY_SIZE(pm800_regulator_matches)); - if (ret < 0) - return ret; - - return 0; -} - static int pm800_regulator_probe(struct platform_device *pdev) { struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent); struct pm80x_platform_data *pdata = dev_get_platdata(pdev->dev.parent); struct pm800_regulators *pm800_data; - struct pm800_regulator_info *info; struct regulator_config config = { }; struct regulator_init_data *init_data; int i, ret; - if (!pdata || pdata->num_regulators == 0) { - if (IS_ENABLED(CONFIG_OF)) { - ret = pm800_regulator_dt_init(pdev); - if (ret) - return ret; - } else { - return -ENODEV; - } - } else if (pdata->num_regulators) { + if (pdata && pdata->num_regulators) { unsigned int count = 0; /* Check whether num_regulator is valid. */ @@ -302,8 +250,6 @@ static int pm800_regulator_probe(struct platform_device *pdev) } if (count != pdata->num_regulators) return -EINVAL; - } else { - return -EINVAL; } pm800_data = devm_kzalloc(&pdev->dev, sizeof(*pm800_data), @@ -316,28 +262,27 @@ static int pm800_regulator_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pm800_data); + config.dev = chip->dev; + config.regmap = pm800_data->map; for (i = 0; i < PM800_ID_RG_MAX; i++) { struct regulator_dev *regulator; - if (!pdata || pdata->num_regulators == 0) - init_data = pm800_regulator_matches[i].init_data; - else + if (pdata && pdata->num_regulators) { init_data = pdata->regulators[i]; - if (!init_data) - continue; - info = pm800_regulator_matches[i].driver_data; - config.dev = &pdev->dev; - config.init_data = init_data; - config.driver_data = info; - config.regmap = pm800_data->map; - config.of_node = pm800_regulator_matches[i].of_node; + if (!init_data) + continue; + + config.init_data = init_data; + } + + config.driver_data = &pm800_regulator_info[i]; regulator = devm_regulator_register(&pdev->dev, - &info->desc, &config); + &pm800_regulator_info[i].desc, &config); if (IS_ERR(regulator)) { ret = PTR_ERR(regulator); dev_err(&pdev->dev, "Failed to register %s\n", - info->desc.name); + pm800_regulator_info[i].desc.name); return ret; } } From 0afab670bda6f3c9980be9e6de0effcc2c6d456c Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:47 +0900 Subject: [PATCH 25/70] mfd/extcon: max77693: Remove unused extern declarations and max77693_dev members Clean up the max77693 private header file by removing: 1. Left-overs from previous way of interrupt handling (driver uses regmap_irq_chip). 2. Unused members of struct 'max77693_dev' related to interrupts in extcon driver. Signed-off-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Acked-by: Lee Jones Signed-off-by: Mark Brown --- drivers/extcon/extcon-max77693.c | 19 ------------------- include/linux/mfd/max77693-private.h | 8 -------- 2 files changed, 27 deletions(-) diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index f4f3b3d53928..770db3a72a6a 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -1164,28 +1164,9 @@ static int max77693_muic_probe(struct platform_device *pdev) } for (i = 0; i < num_init_data; i++) { - enum max77693_irq_source irq_src - = MAX77693_IRQ_GROUP_NR; - regmap_write(info->max77693->regmap_muic, init_data[i].addr, init_data[i].data); - - switch (init_data[i].addr) { - case MAX77693_MUIC_REG_INTMASK1: - irq_src = MUIC_INT1; - break; - case MAX77693_MUIC_REG_INTMASK2: - irq_src = MUIC_INT2; - break; - case MAX77693_MUIC_REG_INTMASK3: - irq_src = MUIC_INT3; - break; - } - - if (irq_src < MAX77693_IRQ_GROUP_NR) - info->max77693->irq_masks_cur[irq_src] - = init_data[i].data; } if (pdata && pdata->muic_data) { diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h index 51633ea6f910..ad67b8235a8d 100644 --- a/include/linux/mfd/max77693-private.h +++ b/include/linux/mfd/max77693-private.h @@ -547,18 +547,10 @@ struct max77693_dev { struct regmap_irq_chip_data *irq_data_muic; int irq; - int irq_gpio; - struct mutex irqlock; - int irq_masks_cur[MAX77693_IRQ_GROUP_NR]; - int irq_masks_cache[MAX77693_IRQ_GROUP_NR]; }; enum max77693_types { TYPE_MAX77693, }; -extern int max77693_irq_init(struct max77693_dev *max77686); -extern void max77693_irq_exit(struct max77693_dev *max77686); -extern int max77693_irq_resume(struct max77693_dev *max77686); - #endif /* __LINUX_MFD_MAX77693_PRIV_H */ From b3b58cee8aced52e3d7fdb387f40c782a4511198 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:48 +0900 Subject: [PATCH 26/70] mfd: max77693: Store I2C device type as enum and add default unknown Store the device type (obtained from i2c_device_id) as an enum and add a default type of unknown to distinguish from case when this is not set at all. Signed-off-by: Krzysztof Kozlowski Acked-by: Lee Jones Signed-off-by: Mark Brown --- include/linux/mfd/max77693-private.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h index ad67b8235a8d..e3c0afff38d3 100644 --- a/include/linux/mfd/max77693-private.h +++ b/include/linux/mfd/max77693-private.h @@ -529,13 +529,18 @@ enum max77693_irq_muic { MAX77693_MUIC_IRQ_NR, }; +enum max77693_types { + TYPE_MAX77693_UNKNOWN, + TYPE_MAX77693, +}; + struct max77693_dev { struct device *dev; struct i2c_client *i2c; /* 0xCC , PMIC, Charger, Flash LED */ struct i2c_client *muic; /* 0x4A , MUIC */ struct i2c_client *haptic; /* 0x90 , Haptic */ - int type; + enum max77693_types type; struct regmap *regmap; struct regmap *regmap_muic; @@ -549,8 +554,4 @@ struct max77693_dev { int irq; }; -enum max77693_types { - TYPE_MAX77693, -}; - #endif /* __LINUX_MFD_MAX77693_PRIV_H */ From 5b5e771fb711f95da859bf6be9fba4bc9919b5d5 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:49 +0900 Subject: [PATCH 27/70] regulator: max77693: Support different register configurations Add support for different configurations of charger's registers so the same driver could be used on other devices (e.g. MAX77843). Signed-off-by: Krzysztof Kozlowski Acked-by: Mark Brown Signed-off-by: Mark Brown --- drivers/regulator/max77693.c | 39 +++++++++++++++++++++++++----------- 1 file changed, 27 insertions(+), 12 deletions(-) diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c index 38722c8311a5..236851ab575a 100644 --- a/drivers/regulator/max77693.c +++ b/drivers/regulator/max77693.c @@ -33,7 +33,13 @@ #include #include -#define CHGIN_ILIM_STEP_20mA 20000 +/* Charger regulator differences between MAX77693 and MAX77843 */ +struct chg_reg_data { + unsigned int linear_reg; + unsigned int linear_mask; + unsigned int uA_step; + unsigned int min_sel; +}; /* * CHARGER regulator - Min : 20mA, Max : 2580mA, step : 20mA @@ -42,25 +48,26 @@ */ static int max77693_chg_get_current_limit(struct regulator_dev *rdev) { + const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev); unsigned int chg_min_uA = rdev->constraints->min_uA; unsigned int chg_max_uA = rdev->constraints->max_uA; unsigned int reg, sel; unsigned int val; int ret; - ret = regmap_read(rdev->regmap, MAX77693_CHG_REG_CHG_CNFG_09, ®); + ret = regmap_read(rdev->regmap, reg_data->linear_reg, ®); if (ret < 0) return ret; - sel = reg & CHG_CNFG_09_CHGIN_ILIM_MASK; + sel = reg & reg_data->linear_mask; /* the first four codes for charger current are all 60mA */ - if (sel <= 3) + if (sel <= reg_data->min_sel) sel = 0; else - sel -= 3; + sel -= reg_data->min_sel; - val = chg_min_uA + CHGIN_ILIM_STEP_20mA * sel; + val = chg_min_uA + reg_data->uA_step * sel; if (val > chg_max_uA) return -EINVAL; @@ -70,20 +77,20 @@ static int max77693_chg_get_current_limit(struct regulator_dev *rdev) static int max77693_chg_set_current_limit(struct regulator_dev *rdev, int min_uA, int max_uA) { + const struct chg_reg_data *reg_data = rdev_get_drvdata(rdev); unsigned int chg_min_uA = rdev->constraints->min_uA; int sel = 0; - while (chg_min_uA + CHGIN_ILIM_STEP_20mA * sel < min_uA) + while (chg_min_uA + reg_data->uA_step * sel < min_uA) sel++; - if (chg_min_uA + CHGIN_ILIM_STEP_20mA * sel > max_uA) + if (chg_min_uA + reg_data->uA_step * sel > max_uA) return -EINVAL; /* the first four codes for charger current are all 60mA */ - sel += 3; + sel += reg_data->min_sel; - return regmap_write(rdev->regmap, - MAX77693_CHG_REG_CHG_CNFG_09, sel); + return regmap_write(rdev->regmap, reg_data->linear_reg, sel); } /* end of CHARGER regulator ops */ @@ -145,6 +152,13 @@ static const struct regulator_desc regulators[] = { }, }; +static const struct chg_reg_data max77693_chg_reg_data = { + .linear_reg = MAX77693_CHG_REG_CHG_CNFG_09, + .linear_mask = CHG_CNFG_09_CHGIN_ILIM_MASK, + .uA_step = 20000, + .min_sel = 3, +}; + static int max77693_pmic_probe(struct platform_device *pdev) { struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent); @@ -153,6 +167,7 @@ static int max77693_pmic_probe(struct platform_device *pdev) config.dev = iodev->dev; config.regmap = iodev->regmap; + config.driver_data = (void *)&max77693_chg_reg_data; for (i = 0; i < ARRAY_SIZE(regulators); i++) { struct regulator_dev *rdev; @@ -170,7 +185,7 @@ static int max77693_pmic_probe(struct platform_device *pdev) } static const struct platform_device_id max77693_pmic_id[] = { - {"max77693-pmic", 0}, + { "max77693-pmic", TYPE_MAX77693 }, {}, }; From 61b305cd2ae747b8c9a2e4467dea2575a390162c Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:50 +0900 Subject: [PATCH 28/70] drivers: max77693: Move state container to common header This prepares for merging some of the drivers between max77693 and max77843 so the child MFD driver can be attached to any parent MFD main driver. Move the state container to common header file. Additionally add consistent 'i2c' prefixes to its members (of 'struct i2c_client' type). Signed-off-by: Krzysztof Kozlowski Acked-by: Sebastian Reichel Acked-by: Dmitry Torokhov Acked-by: Lee Jones Acked-by: Chanwoo Choi Acked-by: Jacek Anaszewski Signed-off-by: Mark Brown --- drivers/extcon/extcon-max77693.c | 3 +- drivers/input/misc/max77693-haptic.c | 1 + drivers/leds/leds-max77693.c | 1 + drivers/mfd/max77693.c | 31 ++++++++++---------- drivers/power/max77693_charger.c | 1 + drivers/regulator/max77693.c | 1 + include/linux/mfd/max77693-common.h | 44 ++++++++++++++++++++++++++++ include/linux/mfd/max77693-private.h | 25 ---------------- 8 files changed, 66 insertions(+), 41 deletions(-) create mode 100644 include/linux/mfd/max77693-common.h diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index 770db3a72a6a..c7bb180cfff4 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -1077,7 +1078,7 @@ static int max77693_muic_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "allocate register map\n"); } else { info->max77693->regmap_muic = devm_regmap_init_i2c( - info->max77693->muic, + info->max77693->i2c_muic, &max77693_muic_regmap_config); if (IS_ERR(info->max77693->regmap_muic)) { ret = PTR_ERR(info->max77693->regmap_muic); diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 39e930c10ebb..4524499ea72f 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #define MAX_MAGNITUDE_SHIFT 16 diff --git a/drivers/leds/leds-max77693.c b/drivers/leds/leds-max77693.c index b8b0eec7b540..df348a06d8c7 100644 --- a/drivers/leds/leds-max77693.c +++ b/drivers/leds/leds-max77693.c @@ -13,6 +13,7 @@ #include #include +#include #include #include #include diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c index cb14afa97e6f..67bc53fdc389 100644 --- a/drivers/mfd/max77693.c +++ b/drivers/mfd/max77693.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -193,22 +194,22 @@ static int max77693_i2c_probe(struct i2c_client *i2c, } else dev_info(max77693->dev, "device ID: 0x%x\n", reg_data); - max77693->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC); - if (!max77693->muic) { + max77693->i2c_muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC); + if (!max77693->i2c_muic) { dev_err(max77693->dev, "Failed to allocate I2C device for MUIC\n"); return -ENODEV; } - i2c_set_clientdata(max77693->muic, max77693); + i2c_set_clientdata(max77693->i2c_muic, max77693); - max77693->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC); - if (!max77693->haptic) { + max77693->i2c_haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC); + if (!max77693->i2c_haptic) { dev_err(max77693->dev, "Failed to allocate I2C device for Haptic\n"); ret = -ENODEV; goto err_i2c_haptic; } - i2c_set_clientdata(max77693->haptic, max77693); + i2c_set_clientdata(max77693->i2c_haptic, max77693); - max77693->regmap_haptic = devm_regmap_init_i2c(max77693->haptic, + max77693->regmap_haptic = devm_regmap_init_i2c(max77693->i2c_haptic, &max77693_regmap_haptic_config); if (IS_ERR(max77693->regmap_haptic)) { ret = PTR_ERR(max77693->regmap_haptic); @@ -222,7 +223,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c, * instance of MUIC device when irq of max77693 is initialized * before call max77693-muic probe() function. */ - max77693->regmap_muic = devm_regmap_init_i2c(max77693->muic, + max77693->regmap_muic = devm_regmap_init_i2c(max77693->i2c_muic, &max77693_regmap_muic_config); if (IS_ERR(max77693->regmap_muic)) { ret = PTR_ERR(max77693->regmap_muic); @@ -255,7 +256,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c, IRQF_ONESHOT | IRQF_SHARED | IRQF_TRIGGER_FALLING, 0, &max77693_charger_irq_chip, - &max77693->irq_data_charger); + &max77693->irq_data_chg); if (ret) { dev_err(max77693->dev, "failed to add irq chip: %d\n", ret); goto err_irq_charger; @@ -296,15 +297,15 @@ err_mfd: err_intsrc: regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic); err_irq_muic: - regmap_del_irq_chip(max77693->irq, max77693->irq_data_charger); + regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg); err_irq_charger: regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys); err_irq_topsys: regmap_del_irq_chip(max77693->irq, max77693->irq_data_led); err_regmap: - i2c_unregister_device(max77693->haptic); + i2c_unregister_device(max77693->i2c_haptic); err_i2c_haptic: - i2c_unregister_device(max77693->muic); + i2c_unregister_device(max77693->i2c_muic); return ret; } @@ -315,12 +316,12 @@ static int max77693_i2c_remove(struct i2c_client *i2c) mfd_remove_devices(max77693->dev); regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic); - regmap_del_irq_chip(max77693->irq, max77693->irq_data_charger); + regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg); regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys); regmap_del_irq_chip(max77693->irq, max77693->irq_data_led); - i2c_unregister_device(max77693->muic); - i2c_unregister_device(max77693->haptic); + i2c_unregister_device(max77693->i2c_muic); + i2c_unregister_device(max77693->i2c_haptic); return 0; } diff --git a/drivers/power/max77693_charger.c b/drivers/power/max77693_charger.c index 754879eb59f6..060cab5ae3aa 100644 --- a/drivers/power/max77693_charger.c +++ b/drivers/power/max77693_charger.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #define MAX77693_CHARGER_NAME "max77693-charger" diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c index 236851ab575a..c6ab440a74b7 100644 --- a/drivers/regulator/max77693.c +++ b/drivers/regulator/max77693.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include diff --git a/include/linux/mfd/max77693-common.h b/include/linux/mfd/max77693-common.h new file mode 100644 index 000000000000..7da4cc38e982 --- /dev/null +++ b/include/linux/mfd/max77693-common.h @@ -0,0 +1,44 @@ +/* + * Common data shared between Maxim 77693 and 77843 drivers + * + * Copyright (C) 2015 Samsung Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __LINUX_MFD_MAX77693_COMMON_H +#define __LINUX_MFD_MAX77693_COMMON_H + +enum max77693_types { + TYPE_MAX77693_UNKNOWN, + TYPE_MAX77693, +}; + +/* + * Shared also with max77843. + */ +struct max77693_dev { + struct device *dev; + struct i2c_client *i2c; /* 0xCC , PMIC, Charger, Flash LED */ + struct i2c_client *i2c_muic; /* 0x4A , MUIC */ + struct i2c_client *i2c_haptic; /* MAX77693: 0x90 , Haptic */ + + enum max77693_types type; + + struct regmap *regmap; + struct regmap *regmap_muic; + struct regmap *regmap_haptic; /* Only MAX77693 */ + + struct regmap_irq_chip_data *irq_data_led; + struct regmap_irq_chip_data *irq_data_topsys; + struct regmap_irq_chip_data *irq_data_chg; /* Only MAX77693 */ + struct regmap_irq_chip_data *irq_data_muic; + + int irq; +}; + + +#endif /* __LINUX_MFD_MAX77693_COMMON_H */ diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h index e3c0afff38d3..8c4143c0c651 100644 --- a/include/linux/mfd/max77693-private.h +++ b/include/linux/mfd/max77693-private.h @@ -529,29 +529,4 @@ enum max77693_irq_muic { MAX77693_MUIC_IRQ_NR, }; -enum max77693_types { - TYPE_MAX77693_UNKNOWN, - TYPE_MAX77693, -}; - -struct max77693_dev { - struct device *dev; - struct i2c_client *i2c; /* 0xCC , PMIC, Charger, Flash LED */ - struct i2c_client *muic; /* 0x4A , MUIC */ - struct i2c_client *haptic; /* 0x90 , Haptic */ - - enum max77693_types type; - - struct regmap *regmap; - struct regmap *regmap_muic; - struct regmap *regmap_haptic; - - struct regmap_irq_chip_data *irq_data_led; - struct regmap_irq_chip_data *irq_data_topsys; - struct regmap_irq_chip_data *irq_data_charger; - struct regmap_irq_chip_data *irq_data_muic; - - int irq; -}; - #endif /* __LINUX_MFD_MAX77693_PRIV_H */ From bc1aadc18621ccf93fb33ecbb847b422c354899d Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:51 +0900 Subject: [PATCH 29/70] drivers: max77843: Switch to common max77693 state container Switch to the same definition of state container as in MAX77693 drivers. This will allow usage of one regulator driver in both devices: MAX77693 and MAX77843. Signed-off-by: Krzysztof Kozlowski Acked-by: Dmitry Torokhov Acked-by: Lee Jones Acked-by: Chanwoo Choi Signed-off-by: Mark Brown --- drivers/extcon/extcon-max77843.c | 17 +++++++++-------- drivers/input/misc/max77843-haptic.c | 3 ++- drivers/mfd/max77843.c | 20 +++++++++++--------- drivers/regulator/max77843.c | 6 ++++-- include/linux/mfd/max77693-common.h | 5 +++++ include/linux/mfd/max77843-private.h | 20 -------------------- 6 files changed, 31 insertions(+), 40 deletions(-) diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c index fac2f1417a79..4dfe0a6337d8 100644 --- a/drivers/extcon/extcon-max77843.c +++ b/drivers/extcon/extcon-max77843.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -32,7 +33,7 @@ enum max77843_muic_status { struct max77843_muic_info { struct device *dev; - struct max77843 *max77843; + struct max77693_dev *max77843; struct extcon_dev *edev; struct mutex mutex; @@ -198,7 +199,7 @@ static const struct regmap_irq_chip max77843_muic_irq_chip = { static int max77843_muic_set_path(struct max77843_muic_info *info, u8 val, bool attached) { - struct max77843 *max77843 = info->max77843; + struct max77693_dev *max77843 = info->max77843; int ret = 0; unsigned int ctrl1, ctrl2; @@ -539,7 +540,7 @@ static void max77843_muic_irq_work(struct work_struct *work) { struct max77843_muic_info *info = container_of(work, struct max77843_muic_info, irq_work); - struct max77843 *max77843 = info->max77843; + struct max77693_dev *max77843 = info->max77843; int ret = 0; mutex_lock(&info->mutex); @@ -615,7 +616,7 @@ static void max77843_muic_detect_cable_wq(struct work_struct *work) { struct max77843_muic_info *info = container_of(to_delayed_work(work), struct max77843_muic_info, wq_detcable); - struct max77843 *max77843 = info->max77843; + struct max77693_dev *max77843 = info->max77843; int chg_type, adc, ret; bool attached; @@ -656,7 +657,7 @@ err_cable_wq: static int max77843_muic_set_debounce_time(struct max77843_muic_info *info, enum max77843_muic_adc_debounce_time time) { - struct max77843 *max77843 = info->max77843; + struct max77693_dev *max77843 = info->max77843; int ret; switch (time) { @@ -681,7 +682,7 @@ static int max77843_muic_set_debounce_time(struct max77843_muic_info *info, return 0; } -static int max77843_init_muic_regmap(struct max77843 *max77843) +static int max77843_init_muic_regmap(struct max77693_dev *max77843) { int ret; @@ -720,7 +721,7 @@ err_muic_i2c: static int max77843_muic_probe(struct platform_device *pdev) { - struct max77843 *max77843 = dev_get_drvdata(pdev->dev.parent); + struct max77693_dev *max77843 = dev_get_drvdata(pdev->dev.parent); struct max77843_muic_info *info; unsigned int id; int i, ret; @@ -821,7 +822,7 @@ err_muic_irq: static int max77843_muic_remove(struct platform_device *pdev) { struct max77843_muic_info *info = platform_get_drvdata(pdev); - struct max77843 *max77843 = info->max77843; + struct max77693_dev *max77843 = info->max77843; cancel_work_sync(&info->irq_work); regmap_del_irq_chip(max77843->irq, max77843->irq_data_muic); diff --git a/drivers/input/misc/max77843-haptic.c b/drivers/input/misc/max77843-haptic.c index dccbb465a055..30da81ab5a21 100644 --- a/drivers/input/misc/max77843-haptic.c +++ b/drivers/input/misc/max77843-haptic.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -243,7 +244,7 @@ static void max77843_haptic_close(struct input_dev *dev) static int max77843_haptic_probe(struct platform_device *pdev) { - struct max77843 *max77843 = dev_get_drvdata(pdev->dev.parent); + struct max77693_dev *max77843 = dev_get_drvdata(pdev->dev.parent); struct max77843_haptic *haptic; int error; diff --git a/drivers/mfd/max77843.c b/drivers/mfd/max77843.c index a354ac677ec7..c52162ea3d0a 100644 --- a/drivers/mfd/max77843.c +++ b/drivers/mfd/max77843.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -71,7 +72,7 @@ static const struct regmap_irq_chip max77843_irq_chip = { }; /* Charger and Charger regulator use same regmap. */ -static int max77843_chg_init(struct max77843 *max77843) +static int max77843_chg_init(struct max77693_dev *max77843) { int ret; @@ -101,7 +102,7 @@ err_chg_i2c: static int max77843_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { - struct max77843 *max77843; + struct max77693_dev *max77843; unsigned int reg_data; int ret; @@ -113,6 +114,7 @@ static int max77843_probe(struct i2c_client *i2c, max77843->dev = &i2c->dev; max77843->i2c = i2c; max77843->irq = i2c->irq; + max77843->type = id->driver_data; max77843->regmap = devm_regmap_init_i2c(i2c, &max77843_regmap_config); @@ -123,7 +125,7 @@ static int max77843_probe(struct i2c_client *i2c, ret = regmap_add_irq_chip(max77843->regmap, max77843->irq, IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED, - 0, &max77843_irq_chip, &max77843->irq_data); + 0, &max77843_irq_chip, &max77843->irq_data_topsys); if (ret) { dev_err(&i2c->dev, "Failed to add TOPSYS IRQ chip\n"); return ret; @@ -164,18 +166,18 @@ static int max77843_probe(struct i2c_client *i2c, return 0; err_pmic_id: - regmap_del_irq_chip(max77843->irq, max77843->irq_data); + regmap_del_irq_chip(max77843->irq, max77843->irq_data_topsys); return ret; } static int max77843_remove(struct i2c_client *i2c) { - struct max77843 *max77843 = i2c_get_clientdata(i2c); + struct max77693_dev *max77843 = i2c_get_clientdata(i2c); mfd_remove_devices(max77843->dev); - regmap_del_irq_chip(max77843->irq, max77843->irq_data); + regmap_del_irq_chip(max77843->irq, max77843->irq_data_topsys); i2c_unregister_device(max77843->i2c_chg); @@ -188,7 +190,7 @@ static const struct of_device_id max77843_dt_match[] = { }; static const struct i2c_device_id max77843_id[] = { - { "max77843", }, + { "max77843", TYPE_MAX77843, }, { }, }; MODULE_DEVICE_TABLE(i2c, max77843_id); @@ -196,7 +198,7 @@ MODULE_DEVICE_TABLE(i2c, max77843_id); static int __maybe_unused max77843_suspend(struct device *dev) { struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); - struct max77843 *max77843 = i2c_get_clientdata(i2c); + struct max77693_dev *max77843 = i2c_get_clientdata(i2c); disable_irq(max77843->irq); if (device_may_wakeup(dev)) @@ -208,7 +210,7 @@ static int __maybe_unused max77843_suspend(struct device *dev) static int __maybe_unused max77843_resume(struct device *dev) { struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); - struct max77843 *max77843 = i2c_get_clientdata(i2c); + struct max77693_dev *max77843 = i2c_get_clientdata(i2c); if (device_may_wakeup(dev)) disable_irq_wake(max77843->irq); diff --git a/drivers/regulator/max77843.c b/drivers/regulator/max77843.c index f4fd0d3cfa6e..9926247aae6b 100644 --- a/drivers/regulator/max77843.c +++ b/drivers/regulator/max77843.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -130,7 +131,8 @@ static const struct regulator_desc max77843_supported_regulators[] = { }, }; -static struct regmap *max77843_get_regmap(struct max77843 *max77843, int reg_id) +static struct regmap *max77843_get_regmap(struct max77693_dev *max77843, + int reg_id) { switch (reg_id) { case MAX77843_SAFEOUT1: @@ -145,7 +147,7 @@ static struct regmap *max77843_get_regmap(struct max77843 *max77843, int reg_id) static int max77843_regulator_probe(struct platform_device *pdev) { - struct max77843 *max77843 = dev_get_drvdata(pdev->dev.parent); + struct max77693_dev *max77843 = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = {}; int i; diff --git a/include/linux/mfd/max77693-common.h b/include/linux/mfd/max77693-common.h index 7da4cc38e982..095b121aa725 100644 --- a/include/linux/mfd/max77693-common.h +++ b/include/linux/mfd/max77693-common.h @@ -15,6 +15,9 @@ enum max77693_types { TYPE_MAX77693_UNKNOWN, TYPE_MAX77693, + TYPE_MAX77843, + + TYPE_MAX77693_NUM, }; /* @@ -25,12 +28,14 @@ struct max77693_dev { struct i2c_client *i2c; /* 0xCC , PMIC, Charger, Flash LED */ struct i2c_client *i2c_muic; /* 0x4A , MUIC */ struct i2c_client *i2c_haptic; /* MAX77693: 0x90 , Haptic */ + struct i2c_client *i2c_chg; /* MAX77843: 0xD2, Charger */ enum max77693_types type; struct regmap *regmap; struct regmap *regmap_muic; struct regmap *regmap_haptic; /* Only MAX77693 */ + struct regmap *regmap_chg; /* Only MAX77843 */ struct regmap_irq_chip_data *irq_data_led; struct regmap_irq_chip_data *irq_data_topsys; diff --git a/include/linux/mfd/max77843-private.h b/include/linux/mfd/max77843-private.h index 7178ace8379e..0121d9440340 100644 --- a/include/linux/mfd/max77843-private.h +++ b/include/linux/mfd/max77843-private.h @@ -431,24 +431,4 @@ enum max77843_irq_muic { #define MAX77843_REG_SAFEOUTCTRL_SAFEOUT2_MASK \ (0x3 << SAFEOUTCTRL_SAFEOUT2_SHIFT) -struct max77843 { - struct device *dev; - - struct i2c_client *i2c; - struct i2c_client *i2c_chg; - struct i2c_client *i2c_fuel; - struct i2c_client *i2c_muic; - - struct regmap *regmap; - struct regmap *regmap_chg; - struct regmap *regmap_fuel; - struct regmap *regmap_muic; - - struct regmap_irq_chip_data *irq_data; - struct regmap_irq_chip_data *irq_data_chg; - struct regmap_irq_chip_data *irq_data_fuel; - struct regmap_irq_chip_data *irq_data_muic; - - int irq; -}; #endif /* __MAX77843_H__ */ From cceb433a1e2930301b33c79016eff147eb555cea Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:52 +0900 Subject: [PATCH 30/70] mfd/extcon: max77693: Rename defines to allow inclusion with max77843 Add MAX77693 prefix to some of the defines used in max77693 extcon driver so the max77693-private.h can be included simultaneously with max77843-private.h. Additionally use BIT() macro in header. Signed-off-by: Krzysztof Kozlowski Acked-by: Lee Jones Acked-by: Chanwoo Choi Signed-off-by: Mark Brown --- drivers/extcon/extcon-max77693.c | 72 +++++++++++---------- include/linux/mfd/max77693-private.h | 96 ++++++++++++++-------------- 2 files changed, 86 insertions(+), 82 deletions(-) diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index c7bb180cfff4..35b9e118b2fb 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -43,7 +43,7 @@ static struct max77693_reg_data default_init_data[] = { { /* STATUS2 - [3]ChgDetRun */ .addr = MAX77693_MUIC_REG_STATUS2, - .data = STATUS2_CHGDETRUN_MASK, + .data = MAX77693_STATUS2_CHGDETRUN_MASK, }, { /* INTMASK1 - Unmask [3]ADC1KM,[0]ADCM */ .addr = MAX77693_MUIC_REG_INTMASK1, @@ -236,7 +236,7 @@ static int max77693_muic_set_debounce_time(struct max77693_muic_info *info, */ ret = regmap_write(info->max77693->regmap_muic, MAX77693_MUIC_REG_CTRL3, - time << CONTROL3_ADCDBSET_SHIFT); + time << MAX77693_CONTROL3_ADCDBSET_SHIFT); if (ret) { dev_err(info->dev, "failed to set ADC debounce time\n"); return ret; @@ -269,7 +269,7 @@ static int max77693_muic_set_path(struct max77693_muic_info *info, if (attached) ctrl1 = val; else - ctrl1 = CONTROL1_SW_OPEN; + ctrl1 = MAX77693_CONTROL1_SW_OPEN; ret = regmap_update_bits(info->max77693->regmap_muic, MAX77693_MUIC_REG_CTRL1, COMP_SW_MASK, ctrl1); @@ -279,13 +279,14 @@ static int max77693_muic_set_path(struct max77693_muic_info *info, } if (attached) - ctrl2 |= CONTROL2_CPEN_MASK; /* LowPwr=0, CPEn=1 */ + ctrl2 |= MAX77693_CONTROL2_CPEN_MASK; /* LowPwr=0, CPEn=1 */ else - ctrl2 |= CONTROL2_LOWPWR_MASK; /* LowPwr=1, CPEn=0 */ + ctrl2 |= MAX77693_CONTROL2_LOWPWR_MASK; /* LowPwr=1, CPEn=0 */ ret = regmap_update_bits(info->max77693->regmap_muic, MAX77693_MUIC_REG_CTRL2, - CONTROL2_LOWPWR_MASK | CONTROL2_CPEN_MASK, ctrl2); + MAX77693_CONTROL2_LOWPWR_MASK | MAX77693_CONTROL2_CPEN_MASK, + ctrl2); if (ret < 0) { dev_err(info->dev, "failed to update MUIC register\n"); return ret; @@ -327,8 +328,8 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info, * Read ADC value to check cable type and decide cable state * according to cable type */ - adc = info->status[0] & STATUS1_ADC_MASK; - adc >>= STATUS1_ADC_SHIFT; + adc = info->status[0] & MAX77693_STATUS1_ADC_MASK; + adc >>= MAX77693_STATUS1_ADC_SHIFT; /* * Check current cable state/cable type and store cable type @@ -351,8 +352,8 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info, * Read ADC value to check cable type and decide cable state * according to cable type */ - adc = info->status[0] & STATUS1_ADC_MASK; - adc >>= STATUS1_ADC_SHIFT; + adc = info->status[0] & MAX77693_STATUS1_ADC_MASK; + adc >>= MAX77693_STATUS1_ADC_SHIFT; /* * Check current cable state/cable type and store cable type @@ -367,13 +368,13 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info, } else { *attached = true; - adclow = info->status[0] & STATUS1_ADCLOW_MASK; - adclow >>= STATUS1_ADCLOW_SHIFT; - adc1k = info->status[0] & STATUS1_ADC1K_MASK; - adc1k >>= STATUS1_ADC1K_SHIFT; + adclow = info->status[0] & MAX77693_STATUS1_ADCLOW_MASK; + adclow >>= MAX77693_STATUS1_ADCLOW_SHIFT; + adc1k = info->status[0] & MAX77693_STATUS1_ADC1K_MASK; + adc1k >>= MAX77693_STATUS1_ADC1K_SHIFT; - vbvolt = info->status[1] & STATUS2_VBVOLT_MASK; - vbvolt >>= STATUS2_VBVOLT_SHIFT; + vbvolt = info->status[1] & MAX77693_STATUS2_VBVOLT_MASK; + vbvolt >>= MAX77693_STATUS2_VBVOLT_SHIFT; /** * [0x1|VBVolt|ADCLow|ADC1K] @@ -398,8 +399,8 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info, * Read charger type to check cable type and decide cable state * according to type of charger cable. */ - chg_type = info->status[1] & STATUS2_CHGTYP_MASK; - chg_type >>= STATUS2_CHGTYP_SHIFT; + chg_type = info->status[1] & MAX77693_STATUS2_CHGTYP_MASK; + chg_type >>= MAX77693_STATUS2_CHGTYP_SHIFT; if (chg_type == MAX77693_CHARGER_TYPE_NONE) { *attached = false; @@ -423,10 +424,10 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info, * Read ADC value to check cable type and decide cable state * according to cable type */ - adc = info->status[0] & STATUS1_ADC_MASK; - adc >>= STATUS1_ADC_SHIFT; - chg_type = info->status[1] & STATUS2_CHGTYP_MASK; - chg_type >>= STATUS2_CHGTYP_SHIFT; + adc = info->status[0] & MAX77693_STATUS1_ADC_MASK; + adc >>= MAX77693_STATUS1_ADC_SHIFT; + chg_type = info->status[1] & MAX77693_STATUS2_CHGTYP_MASK; + chg_type >>= MAX77693_STATUS2_CHGTYP_SHIFT; if (adc == MAX77693_MUIC_ADC_OPEN && chg_type == MAX77693_CHARGER_TYPE_NONE) @@ -438,8 +439,8 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info, * Read vbvolt field, if vbvolt is 1, * this cable is used for charging. */ - vbvolt = info->status[1] & STATUS2_VBVOLT_MASK; - vbvolt >>= STATUS2_VBVOLT_SHIFT; + vbvolt = info->status[1] & MAX77693_STATUS2_VBVOLT_MASK; + vbvolt >>= MAX77693_STATUS2_VBVOLT_SHIFT; cable_type = vbvolt; break; @@ -521,7 +522,8 @@ static int max77693_muic_dock_handler(struct max77693_muic_info *info, } /* Dock-Car/Desk/Audio, PATH:AUDIO */ - ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached); + ret = max77693_muic_set_path(info, MAX77693_CONTROL1_SW_AUDIO, + attached); if (ret < 0) return ret; extcon_set_cable_state_(info->edev, dock_id, attached); @@ -586,14 +588,16 @@ static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info) case MAX77693_MUIC_GND_USB_HOST: case MAX77693_MUIC_GND_USB_HOST_VB: /* USB_HOST, PATH: AP_USB */ - ret = max77693_muic_set_path(info, CONTROL1_SW_USB, attached); + ret = max77693_muic_set_path(info, MAX77693_CONTROL1_SW_USB, + attached); if (ret < 0) return ret; extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, attached); break; case MAX77693_MUIC_GND_AV_CABLE_LOAD: /* Audio Video Cable with load, PATH:AUDIO */ - ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached); + ret = max77693_muic_set_path(info, MAX77693_CONTROL1_SW_AUDIO, + attached); if (ret < 0) return ret; extcon_set_cable_state_(info->edev, EXTCON_USB, attached); @@ -616,7 +620,7 @@ static int max77693_muic_jig_handler(struct max77693_muic_info *info, int cable_type, bool attached) { int ret = 0; - u8 path = CONTROL1_SW_OPEN; + u8 path = MAX77693_CONTROL1_SW_OPEN; dev_info(info->dev, "external connector is %s (adc:0x%02x)\n", @@ -626,12 +630,12 @@ static int max77693_muic_jig_handler(struct max77693_muic_info *info, case MAX77693_MUIC_ADC_FACTORY_MODE_USB_OFF: /* ADC_JIG_USB_OFF */ case MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON: /* ADC_JIG_USB_ON */ /* PATH:AP_USB */ - path = CONTROL1_SW_USB; + path = MAX77693_CONTROL1_SW_USB; break; case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF: /* ADC_JIG_UART_OFF */ case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON: /* ADC_JIG_UART_ON */ /* PATH:AP_UART */ - path = CONTROL1_SW_UART; + path = MAX77693_CONTROL1_SW_UART; break; default: dev_err(info->dev, "failed to detect %s jig cable\n", @@ -1181,12 +1185,12 @@ static int max77693_muic_probe(struct platform_device *pdev) if (muic_pdata->path_uart) info->path_uart = muic_pdata->path_uart; else - info->path_uart = CONTROL1_SW_UART; + info->path_uart = MAX77693_CONTROL1_SW_UART; if (muic_pdata->path_usb) info->path_usb = muic_pdata->path_usb; else - info->path_usb = CONTROL1_SW_USB; + info->path_usb = MAX77693_CONTROL1_SW_USB; /* * Default delay time for detecting cable state @@ -1198,8 +1202,8 @@ static int max77693_muic_probe(struct platform_device *pdev) else delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); } else { - info->path_usb = CONTROL1_SW_USB; - info->path_uart = CONTROL1_SW_UART; + info->path_usb = MAX77693_CONTROL1_SW_USB; + info->path_uart = MAX77693_CONTROL1_SW_UART; delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT); } diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h index 8c4143c0c651..3c7a63b98ad6 100644 --- a/include/linux/mfd/max77693-private.h +++ b/include/linux/mfd/max77693-private.h @@ -310,30 +310,30 @@ enum max77693_muic_reg { #define INTMASK2_CHGTYP_MASK (1 << INTMASK2_CHGTYP_SHIFT) /* MAX77693 MUIC - STATUS1~3 Register */ -#define STATUS1_ADC_SHIFT (0) -#define STATUS1_ADCLOW_SHIFT (5) -#define STATUS1_ADCERR_SHIFT (6) -#define STATUS1_ADC1K_SHIFT (7) -#define STATUS1_ADC_MASK (0x1f << STATUS1_ADC_SHIFT) -#define STATUS1_ADCLOW_MASK (0x1 << STATUS1_ADCLOW_SHIFT) -#define STATUS1_ADCERR_MASK (0x1 << STATUS1_ADCERR_SHIFT) -#define STATUS1_ADC1K_MASK (0x1 << STATUS1_ADC1K_SHIFT) +#define MAX77693_STATUS1_ADC_SHIFT 0 +#define MAX77693_STATUS1_ADCLOW_SHIFT 5 +#define MAX77693_STATUS1_ADCERR_SHIFT 6 +#define MAX77693_STATUS1_ADC1K_SHIFT 7 +#define MAX77693_STATUS1_ADC_MASK (0x1f << MAX77693_STATUS1_ADC_SHIFT) +#define MAX77693_STATUS1_ADCLOW_MASK BIT(MAX77693_STATUS1_ADCLOW_SHIFT) +#define MAX77693_STATUS1_ADCERR_MASK BIT(MAX77693_STATUS1_ADCERR_SHIFT) +#define MAX77693_STATUS1_ADC1K_MASK BIT(MAX77693_STATUS1_ADC1K_SHIFT) -#define STATUS2_CHGTYP_SHIFT (0) -#define STATUS2_CHGDETRUN_SHIFT (3) -#define STATUS2_DCDTMR_SHIFT (4) -#define STATUS2_DXOVP_SHIFT (5) -#define STATUS2_VBVOLT_SHIFT (6) -#define STATUS2_VIDRM_SHIFT (7) -#define STATUS2_CHGTYP_MASK (0x7 << STATUS2_CHGTYP_SHIFT) -#define STATUS2_CHGDETRUN_MASK (0x1 << STATUS2_CHGDETRUN_SHIFT) -#define STATUS2_DCDTMR_MASK (0x1 << STATUS2_DCDTMR_SHIFT) -#define STATUS2_DXOVP_MASK (0x1 << STATUS2_DXOVP_SHIFT) -#define STATUS2_VBVOLT_MASK (0x1 << STATUS2_VBVOLT_SHIFT) -#define STATUS2_VIDRM_MASK (0x1 << STATUS2_VIDRM_SHIFT) +#define MAX77693_STATUS2_CHGTYP_SHIFT 0 +#define MAX77693_STATUS2_CHGDETRUN_SHIFT 3 +#define MAX77693_STATUS2_DCDTMR_SHIFT 4 +#define MAX77693_STATUS2_DXOVP_SHIFT 5 +#define MAX77693_STATUS2_VBVOLT_SHIFT 6 +#define MAX77693_STATUS2_VIDRM_SHIFT 7 +#define MAX77693_STATUS2_CHGTYP_MASK (0x7 << MAX77693_STATUS2_CHGTYP_SHIFT) +#define MAX77693_STATUS2_CHGDETRUN_MASK BIT(MAX77693_STATUS2_CHGDETRUN_SHIFT) +#define MAX77693_STATUS2_DCDTMR_MASK BIT(MAX77693_STATUS2_DCDTMR_SHIFT) +#define MAX77693_STATUS2_DXOVP_MASK BIT(MAX77693_STATUS2_DXOVP_SHIFT) +#define MAX77693_STATUS2_VBVOLT_MASK BIT(MAX77693_STATUS2_VBVOLT_SHIFT) +#define MAX77693_STATUS2_VIDRM_MASK BIT(MAX77693_STATUS2_VIDRM_SHIFT) -#define STATUS3_OVP_SHIFT (2) -#define STATUS3_OVP_MASK (0x1 << STATUS3_OVP_SHIFT) +#define MAX77693_STATUS3_OVP_SHIFT 2 +#define MAX77693_STATUS3_OVP_MASK BIT(MAX77693_STATUS3_OVP_SHIFT) /* MAX77693 CDETCTRL1~2 register */ #define CDETCTRL1_CHGDETEN_SHIFT (0) @@ -362,38 +362,38 @@ enum max77693_muic_reg { #define COMN1SW_MASK (0x7 << COMN1SW_SHIFT) #define COMP2SW_MASK (0x7 << COMP2SW_SHIFT) #define COMP_SW_MASK (COMP2SW_MASK | COMN1SW_MASK) -#define CONTROL1_SW_USB ((1 << COMP2SW_SHIFT) \ +#define MAX77693_CONTROL1_SW_USB ((1 << COMP2SW_SHIFT) \ | (1 << COMN1SW_SHIFT)) -#define CONTROL1_SW_AUDIO ((2 << COMP2SW_SHIFT) \ +#define MAX77693_CONTROL1_SW_AUDIO ((2 << COMP2SW_SHIFT) \ | (2 << COMN1SW_SHIFT)) -#define CONTROL1_SW_UART ((3 << COMP2SW_SHIFT) \ +#define MAX77693_CONTROL1_SW_UART ((3 << COMP2SW_SHIFT) \ | (3 << COMN1SW_SHIFT)) -#define CONTROL1_SW_OPEN ((0 << COMP2SW_SHIFT) \ +#define MAX77693_CONTROL1_SW_OPEN ((0 << COMP2SW_SHIFT) \ | (0 << COMN1SW_SHIFT)) -#define CONTROL2_LOWPWR_SHIFT (0) -#define CONTROL2_ADCEN_SHIFT (1) -#define CONTROL2_CPEN_SHIFT (2) -#define CONTROL2_SFOUTASRT_SHIFT (3) -#define CONTROL2_SFOUTORD_SHIFT (4) -#define CONTROL2_ACCDET_SHIFT (5) -#define CONTROL2_USBCPINT_SHIFT (6) -#define CONTROL2_RCPS_SHIFT (7) -#define CONTROL2_LOWPWR_MASK (0x1 << CONTROL2_LOWPWR_SHIFT) -#define CONTROL2_ADCEN_MASK (0x1 << CONTROL2_ADCEN_SHIFT) -#define CONTROL2_CPEN_MASK (0x1 << CONTROL2_CPEN_SHIFT) -#define CONTROL2_SFOUTASRT_MASK (0x1 << CONTROL2_SFOUTASRT_SHIFT) -#define CONTROL2_SFOUTORD_MASK (0x1 << CONTROL2_SFOUTORD_SHIFT) -#define CONTROL2_ACCDET_MASK (0x1 << CONTROL2_ACCDET_SHIFT) -#define CONTROL2_USBCPINT_MASK (0x1 << CONTROL2_USBCPINT_SHIFT) -#define CONTROL2_RCPS_MASK (0x1 << CONTROL2_RCPS_SHIFT) +#define MAX77693_CONTROL2_LOWPWR_SHIFT 0 +#define MAX77693_CONTROL2_ADCEN_SHIFT 1 +#define MAX77693_CONTROL2_CPEN_SHIFT 2 +#define MAX77693_CONTROL2_SFOUTASRT_SHIFT 3 +#define MAX77693_CONTROL2_SFOUTORD_SHIFT 4 +#define MAX77693_CONTROL2_ACCDET_SHIFT 5 +#define MAX77693_CONTROL2_USBCPINT_SHIFT 6 +#define MAX77693_CONTROL2_RCPS_SHIFT 7 +#define MAX77693_CONTROL2_LOWPWR_MASK BIT(MAX77693_CONTROL2_LOWPWR_SHIFT) +#define MAX77693_CONTROL2_ADCEN_MASK BIT(MAX77693_CONTROL2_ADCEN_SHIFT) +#define MAX77693_CONTROL2_CPEN_MASK BIT(MAX77693_CONTROL2_CPEN_SHIFT) +#define MAX77693_CONTROL2_SFOUTASRT_MASK BIT(MAX77693_CONTROL2_SFOUTASRT_SHIFT) +#define MAX77693_CONTROL2_SFOUTORD_MASK BIT(MAX77693_CONTROL2_SFOUTORD_SHIFT) +#define MAX77693_CONTROL2_ACCDET_MASK BIT(MAX77693_CONTROL2_ACCDET_SHIFT) +#define MAX77693_CONTROL2_USBCPINT_MASK BIT(MAX77693_CONTROL2_USBCPINT_SHIFT) +#define MAX77693_CONTROL2_RCPS_MASK BIT(MAX77693_CONTROL2_RCPS_SHIFT) -#define CONTROL3_JIGSET_SHIFT (0) -#define CONTROL3_BTLDSET_SHIFT (2) -#define CONTROL3_ADCDBSET_SHIFT (4) -#define CONTROL3_JIGSET_MASK (0x3 << CONTROL3_JIGSET_SHIFT) -#define CONTROL3_BTLDSET_MASK (0x3 << CONTROL3_BTLDSET_SHIFT) -#define CONTROL3_ADCDBSET_MASK (0x3 << CONTROL3_ADCDBSET_SHIFT) +#define MAX77693_CONTROL3_JIGSET_SHIFT 0 +#define MAX77693_CONTROL3_BTLDSET_SHIFT 2 +#define MAX77693_CONTROL3_ADCDBSET_SHIFT 4 +#define MAX77693_CONTROL3_JIGSET_MASK (0x3 << MAX77693_CONTROL3_JIGSET_SHIFT) +#define MAX77693_CONTROL3_BTLDSET_MASK (0x3 << MAX77693_CONTROL3_BTLDSET_SHIFT) +#define MAX77693_CONTROL3_ADCDBSET_MASK (0x3 << MAX77693_CONTROL3_ADCDBSET_SHIFT) /* Slave addr = 0x90: Haptic */ enum max77693_haptic_reg { From 309a3e00a511a233acb25eec567a4b11c99d016a Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:53 +0900 Subject: [PATCH 31/70] mfd/extcon: max77843: Rename defines to allow inclusion with max77693 Add MAX77843_MUIC prefix to some of the defines used in max77843 extcon driver so the max77693-private.h can be included simultaneously with max77843-private.h. Signed-off-by: Krzysztof Kozlowski Acked-by: Lee Jones Acked-by: Chanwoo Choi Signed-off-by: Mark Brown --- drivers/extcon/extcon-max77843.c | 49 ++++++--- include/linux/mfd/max77843-private.h | 150 +++++++++++++-------------- 2 files changed, 107 insertions(+), 92 deletions(-) diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c index 4dfe0a6337d8..f652c4199870 100644 --- a/drivers/extcon/extcon-max77843.c +++ b/drivers/extcon/extcon-max77843.c @@ -206,11 +206,11 @@ static int max77843_muic_set_path(struct max77843_muic_info *info, if (attached) ctrl1 = val; else - ctrl1 = CONTROL1_SW_OPEN; + ctrl1 = MAX77843_MUIC_CONTROL1_SW_OPEN; ret = regmap_update_bits(max77843->regmap_muic, MAX77843_MUIC_REG_CONTROL1, - CONTROL1_COM_SW, ctrl1); + MAX77843_MUIC_CONTROL1_COM_SW, ctrl1); if (ret < 0) { dev_err(info->dev, "Cannot switch MUIC port\n"); return ret; @@ -244,7 +244,7 @@ static int max77843_muic_get_cable_type(struct max77843_muic_info *info, adc = info->status[MAX77843_MUIC_STATUS1] & MAX77843_MUIC_STATUS1_ADC_MASK; - adc >>= STATUS1_ADC_SHIFT; + adc >>= MAX77843_MUIC_STATUS1_ADC_SHIFT; switch (group) { case MAX77843_CABLE_GROUP_ADC: @@ -310,7 +310,7 @@ static int max77843_muic_get_cable_type(struct max77843_muic_info *info, /* Get VBVolt register bit */ gnd_type |= (info->status[MAX77843_MUIC_STATUS2] & MAX77843_MUIC_STATUS2_VBVOLT_MASK); - gnd_type >>= STATUS2_VBVOLT_SHIFT; + gnd_type >>= MAX77843_MUIC_STATUS2_VBVOLT_SHIFT; /* Offset of GND cable */ gnd_type |= MAX77843_MUIC_GND_USB_HOST; @@ -339,7 +339,9 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info) switch (gnd_cable_type) { case MAX77843_MUIC_GND_USB_HOST: case MAX77843_MUIC_GND_USB_HOST_VB: - ret = max77843_muic_set_path(info, CONTROL1_SW_USB, attached); + ret = max77843_muic_set_path(info, + MAX77843_MUIC_CONTROL1_SW_USB, + attached); if (ret < 0) return ret; @@ -347,7 +349,9 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info) break; case MAX77843_MUIC_GND_MHL_VB: case MAX77843_MUIC_GND_MHL: - ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached); + ret = max77843_muic_set_path(info, + MAX77843_MUIC_CONTROL1_SW_OPEN, + attached); if (ret < 0) return ret; @@ -366,7 +370,7 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info, int cable_type, bool attached) { int ret; - u8 path = CONTROL1_SW_OPEN; + u8 path = MAX77843_MUIC_CONTROL1_SW_OPEN; dev_dbg(info->dev, "external connector is %s (adc:0x%02x)\n", attached ? "attached" : "detached", cable_type); @@ -374,10 +378,10 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info, switch (cable_type) { case MAX77843_MUIC_ADC_FACTORY_MODE_USB_OFF: case MAX77843_MUIC_ADC_FACTORY_MODE_USB_ON: - path = CONTROL1_SW_USB; + path = MAX77843_MUIC_CONTROL1_SW_USB; break; case MAX77843_MUIC_ADC_FACTORY_MODE_UART_OFF: - path = CONTROL1_SW_UART; + path = MAX77843_MUIC_CONTROL1_SW_UART; break; default: return -EINVAL; @@ -475,14 +479,18 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info) switch (chg_type) { case MAX77843_MUIC_CHG_USB: - ret = max77843_muic_set_path(info, CONTROL1_SW_USB, attached); + ret = max77843_muic_set_path(info, + MAX77843_MUIC_CONTROL1_SW_USB, + attached); if (ret < 0) return ret; extcon_set_cable_state_(info->edev, EXTCON_USB, attached); break; case MAX77843_MUIC_CHG_DOWNSTREAM: - ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached); + ret = max77843_muic_set_path(info, + MAX77843_MUIC_CONTROL1_SW_OPEN, + attached); if (ret < 0) return ret; @@ -490,14 +498,18 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info) attached); break; case MAX77843_MUIC_CHG_DEDICATED: - ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached); + ret = max77843_muic_set_path(info, + MAX77843_MUIC_CONTROL1_SW_OPEN, + attached); if (ret < 0) return ret; extcon_set_cable_state_(info->edev, EXTCON_TA, attached); break; case MAX77843_MUIC_CHG_SPECIAL_500MA: - ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached); + ret = max77843_muic_set_path(info, + MAX77843_MUIC_CONTROL1_SW_OPEN, + attached); if (ret < 0) return ret; @@ -505,7 +517,9 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info) attached); break; case MAX77843_MUIC_CHG_SPECIAL_1A: - ret = max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached); + ret = max77843_muic_set_path(info, + MAX77843_MUIC_CONTROL1_SW_OPEN, + attached); if (ret < 0) return ret; @@ -529,7 +543,8 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info) "failed to detect %s accessory (chg_type:0x%x)\n", attached ? "attached" : "detached", chg_type); - max77843_muic_set_path(info, CONTROL1_SW_OPEN, attached); + max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_OPEN, + attached); return -EINVAL; } @@ -668,7 +683,7 @@ static int max77843_muic_set_debounce_time(struct max77843_muic_info *info, ret = regmap_update_bits(max77843->regmap_muic, MAX77843_MUIC_REG_CONTROL4, MAX77843_MUIC_CONTROL4_ADCDBSET_MASK, - time << CONTROL4_ADCDBSET_SHIFT); + time << MAX77843_MUIC_CONTROL4_ADCDBSET_SHIFT); if (ret < 0) { dev_err(info->dev, "Cannot write MUIC regmap\n"); return ret; @@ -769,7 +784,7 @@ static int max77843_muic_probe(struct platform_device *pdev) max77843_muic_set_debounce_time(info, MAX77843_DEBOUNCE_TIME_25MS); /* Set initial path for UART */ - max77843_muic_set_path(info, CONTROL1_SW_UART, true); + max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true); /* Check revision number of MUIC device */ ret = regmap_read(max77843->regmap_muic, MAX77843_MUIC_REG_ID, &id); diff --git a/include/linux/mfd/max77843-private.h b/include/linux/mfd/max77843-private.h index 0121d9440340..c19303b0ccfd 100644 --- a/include/linux/mfd/max77843-private.h +++ b/include/linux/mfd/max77843-private.h @@ -318,62 +318,62 @@ enum max77843_irq_muic { MAX77843_INTSRCMASK_SYS_MASK | MAX77843_INTSRCMASK_CHGR_MASK) /* MAX77843 STATUS register*/ -#define STATUS1_ADC_SHIFT 0 -#define STATUS1_ADCERROR_SHIFT 6 -#define STATUS1_ADC1K_SHIFT 7 -#define STATUS2_CHGTYP_SHIFT 0 -#define STATUS2_CHGDETRUN_SHIFT 3 -#define STATUS2_DCDTMR_SHIFT 4 -#define STATUS2_DXOVP_SHIFT 5 -#define STATUS2_VBVOLT_SHIFT 6 -#define STATUS3_VBADC_SHIFT 0 -#define STATUS3_VDNMON_SHIFT 4 -#define STATUS3_DNRES_SHIFT 5 -#define STATUS3_MPNACK_SHIFT 6 +#define MAX77843_MUIC_STATUS1_ADC_SHIFT 0 +#define MAX77843_MUIC_STATUS1_ADCERROR_SHIFT 6 +#define MAX77843_MUIC_STATUS1_ADC1K_SHIFT 7 +#define MAX77843_MUIC_STATUS2_CHGTYP_SHIFT 0 +#define MAX77843_MUIC_STATUS2_CHGDETRUN_SHIFT 3 +#define MAX77843_MUIC_STATUS2_DCDTMR_SHIFT 4 +#define MAX77843_MUIC_STATUS2_DXOVP_SHIFT 5 +#define MAX77843_MUIC_STATUS2_VBVOLT_SHIFT 6 +#define MAX77843_MUIC_STATUS3_VBADC_SHIFT 0 +#define MAX77843_MUIC_STATUS3_VDNMON_SHIFT 4 +#define MAX77843_MUIC_STATUS3_DNRES_SHIFT 5 +#define MAX77843_MUIC_STATUS3_MPNACK_SHIFT 6 -#define MAX77843_MUIC_STATUS1_ADC_MASK (0x1f << STATUS1_ADC_SHIFT) -#define MAX77843_MUIC_STATUS1_ADCERROR_MASK BIT(STATUS1_ADCERROR_SHIFT) -#define MAX77843_MUIC_STATUS1_ADC1K_MASK BIT(STATUS1_ADC1K_SHIFT) -#define MAX77843_MUIC_STATUS2_CHGTYP_MASK (0x7 << STATUS2_CHGTYP_SHIFT) -#define MAX77843_MUIC_STATUS2_CHGDETRUN_MASK BIT(STATUS2_CHGDETRUN_SHIFT) -#define MAX77843_MUIC_STATUS2_DCDTMR_MASK BIT(STATUS2_DCDTMR_SHIFT) -#define MAX77843_MUIC_STATUS2_DXOVP_MASK BIT(STATUS2_DXOVP_SHIFT) -#define MAX77843_MUIC_STATUS2_VBVOLT_MASK BIT(STATUS2_VBVOLT_SHIFT) -#define MAX77843_MUIC_STATUS3_VBADC_MASK (0xf << STATUS3_VBADC_SHIFT) -#define MAX77843_MUIC_STATUS3_VDNMON_MASK BIT(STATUS3_VDNMON_SHIFT) -#define MAX77843_MUIC_STATUS3_DNRES_MASK BIT(STATUS3_DNRES_SHIFT) -#define MAX77843_MUIC_STATUS3_MPNACK_MASK BIT(STATUS3_MPNACK_SHIFT) +#define MAX77843_MUIC_STATUS1_ADC_MASK (0x1f << MAX77843_MUIC_STATUS1_ADC_SHIFT) +#define MAX77843_MUIC_STATUS1_ADCERROR_MASK BIT(MAX77843_MUIC_STATUS1_ADCERROR_SHIFT) +#define MAX77843_MUIC_STATUS1_ADC1K_MASK BIT(MAX77843_MUIC_STATUS1_ADC1K_SHIFT) +#define MAX77843_MUIC_STATUS2_CHGTYP_MASK (0x7 << MAX77843_MUIC_STATUS2_CHGTYP_SHIFT) +#define MAX77843_MUIC_STATUS2_CHGDETRUN_MASK BIT(MAX77843_MUIC_STATUS2_CHGDETRUN_SHIFT) +#define MAX77843_MUIC_STATUS2_DCDTMR_MASK BIT(MAX77843_MUIC_STATUS2_DCDTMR_SHIFT) +#define MAX77843_MUIC_STATUS2_DXOVP_MASK BIT(MAX77843_MUIC_STATUS2_DXOVP_SHIFT) +#define MAX77843_MUIC_STATUS2_VBVOLT_MASK BIT(MAX77843_MUIC_STATUS2_VBVOLT_SHIFT) +#define MAX77843_MUIC_STATUS3_VBADC_MASK (0xf << MAX77843_MUIC_STATUS3_VBADC_SHIFT) +#define MAX77843_MUIC_STATUS3_VDNMON_MASK BIT(MAX77843_MUIC_STATUS3_VDNMON_SHIFT) +#define MAX77843_MUIC_STATUS3_DNRES_MASK BIT(MAX77843_MUIC_STATUS3_DNRES_SHIFT) +#define MAX77843_MUIC_STATUS3_MPNACK_MASK BIT(MAX77843_MUIC_STATUS3_MPNACK_SHIFT) /* MAX77843 CONTROL register */ -#define CONTROL1_COMP1SW_SHIFT 0 -#define CONTROL1_COMP2SW_SHIFT 3 -#define CONTROL1_IDBEN_SHIFT 7 -#define CONTROL2_LOWPWR_SHIFT 0 -#define CONTROL2_ADCEN_SHIFT 1 -#define CONTROL2_CPEN_SHIFT 2 -#define CONTROL2_ACC_DET_SHIFT 5 -#define CONTROL2_USBCPINT_SHIFT 6 -#define CONTROL2_RCPS_SHIFT 7 -#define CONTROL3_JIGSET_SHIFT 0 -#define CONTROL4_ADCDBSET_SHIFT 0 -#define CONTROL4_USBAUTO_SHIFT 4 -#define CONTROL4_FCTAUTO_SHIFT 5 -#define CONTROL4_ADCMODE_SHIFT 6 +#define MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT 0 +#define MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT 3 +#define MAX77843_MUIC_CONTROL1_IDBEN_SHIFT 7 +#define MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT 0 +#define MAX77843_MUIC_CONTROL2_ADCEN_SHIFT 1 +#define MAX77843_MUIC_CONTROL2_CPEN_SHIFT 2 +#define MAX77843_MUIC_CONTROL2_ACC_DET_SHIFT 5 +#define MAX77843_MUIC_CONTROL2_USBCPINT_SHIFT 6 +#define MAX77843_MUIC_CONTROL2_RCPS_SHIFT 7 +#define MAX77843_MUIC_CONTROL3_JIGSET_SHIFT 0 +#define MAX77843_MUIC_CONTROL4_ADCDBSET_SHIFT 0 +#define MAX77843_MUIC_CONTROL4_USBAUTO_SHIFT 4 +#define MAX77843_MUIC_CONTROL4_FCTAUTO_SHIFT 5 +#define MAX77843_MUIC_CONTROL4_ADCMODE_SHIFT 6 -#define MAX77843_MUIC_CONTROL1_COMP1SW_MASK (0x7 << CONTROL1_COMP1SW_SHIFT) -#define MAX77843_MUIC_CONTROL1_COMP2SW_MASK (0x7 << CONTROL1_COMP2SW_SHIFT) -#define MAX77843_MUIC_CONTROL1_IDBEN_MASK BIT(CONTROL1_IDBEN_SHIFT) -#define MAX77843_MUIC_CONTROL2_LOWPWR_MASK BIT(CONTROL2_LOWPWR_SHIFT) -#define MAX77843_MUIC_CONTROL2_ADCEN_MASK BIT(CONTROL2_ADCEN_SHIFT) -#define MAX77843_MUIC_CONTROL2_CPEN_MASK BIT(CONTROL2_CPEN_SHIFT) -#define MAX77843_MUIC_CONTROL2_ACC_DET_MASK BIT(CONTROL2_ACC_DET_SHIFT) -#define MAX77843_MUIC_CONTROL2_USBCPINT_MASK BIT(CONTROL2_USBCPINT_SHIFT) -#define MAX77843_MUIC_CONTROL2_RCPS_MASK BIT(CONTROL2_RCPS_SHIFT) -#define MAX77843_MUIC_CONTROL3_JIGSET_MASK (0x3 << CONTROL3_JIGSET_SHIFT) -#define MAX77843_MUIC_CONTROL4_ADCDBSET_MASK (0x3 << CONTROL4_ADCDBSET_SHIFT) -#define MAX77843_MUIC_CONTROL4_USBAUTO_MASK BIT(CONTROL4_USBAUTO_SHIFT) -#define MAX77843_MUIC_CONTROL4_FCTAUTO_MASK BIT(CONTROL4_FCTAUTO_SHIFT) -#define MAX77843_MUIC_CONTROL4_ADCMODE_MASK (0x3 << CONTROL4_ADCMODE_SHIFT) +#define MAX77843_MUIC_CONTROL1_COMP1SW_MASK (0x7 << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT) +#define MAX77843_MUIC_CONTROL1_COMP2SW_MASK (0x7 << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT) +#define MAX77843_MUIC_CONTROL1_IDBEN_MASK BIT(MAX77843_MUIC_CONTROL1_IDBEN_SHIFT) +#define MAX77843_MUIC_CONTROL2_LOWPWR_MASK BIT(MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT) +#define MAX77843_MUIC_CONTROL2_ADCEN_MASK BIT(MAX77843_MUIC_CONTROL2_ADCEN_SHIFT) +#define MAX77843_MUIC_CONTROL2_CPEN_MASK BIT(MAX77843_MUIC_CONTROL2_CPEN_SHIFT) +#define MAX77843_MUIC_CONTROL2_ACC_DET_MASK BIT(MAX77843_MUIC_CONTROL2_ACC_DET_SHIFT) +#define MAX77843_MUIC_CONTROL2_USBCPINT_MASK BIT(MAX77843_MUIC_CONTROL2_USBCPINT_SHIFT) +#define MAX77843_MUIC_CONTROL2_RCPS_MASK BIT(MAX77843_MUIC_CONTROL2_RCPS_SHIFT) +#define MAX77843_MUIC_CONTROL3_JIGSET_MASK (0x3 << MAX77843_MUIC_CONTROL3_JIGSET_SHIFT) +#define MAX77843_MUIC_CONTROL4_ADCDBSET_MASK (0x3 << MAX77843_MUIC_CONTROL4_ADCDBSET_SHIFT) +#define MAX77843_MUIC_CONTROL4_USBAUTO_MASK BIT(MAX77843_MUIC_CONTROL4_USBAUTO_SHIFT) +#define MAX77843_MUIC_CONTROL4_FCTAUTO_MASK BIT(MAX77843_MUIC_CONTROL4_FCTAUTO_SHIFT) +#define MAX77843_MUIC_CONTROL4_ADCMODE_MASK (0x3 << MAX77843_MUIC_CONTROL4_ADCMODE_SHIFT) /* MAX77843 switch port */ #define COM_OPEN 0 @@ -383,38 +383,38 @@ enum max77843_irq_muic { #define COM_AUX_USB 4 #define COM_AUX_UART 5 -#define CONTROL1_COM_SW \ +#define MAX77843_MUIC_CONTROL1_COM_SW \ ((MAX77843_MUIC_CONTROL1_COMP1SW_MASK | \ MAX77843_MUIC_CONTROL1_COMP2SW_MASK)) -#define CONTROL1_SW_OPEN \ - ((COM_OPEN << CONTROL1_COMP1SW_SHIFT | \ - COM_OPEN << CONTROL1_COMP2SW_SHIFT)) -#define CONTROL1_SW_USB \ - ((COM_USB << CONTROL1_COMP1SW_SHIFT | \ - COM_USB << CONTROL1_COMP2SW_SHIFT)) -#define CONTROL1_SW_AUDIO \ - ((COM_AUDIO << CONTROL1_COMP1SW_SHIFT | \ - COM_AUDIO << CONTROL1_COMP2SW_SHIFT)) -#define CONTROL1_SW_UART \ - ((COM_UART << CONTROL1_COMP1SW_SHIFT | \ - COM_UART << CONTROL1_COMP2SW_SHIFT)) -#define CONTROL1_SW_AUX_USB \ - ((COM_AUX_USB << CONTROL1_COMP1SW_SHIFT | \ - COM_AUX_USB << CONTROL1_COMP2SW_SHIFT)) -#define CONTROL1_SW_AUX_UART \ - ((COM_AUX_UART << CONTROL1_COMP1SW_SHIFT | \ - COM_AUX_UART << CONTROL1_COMP2SW_SHIFT)) +#define MAX77843_MUIC_CONTROL1_SW_OPEN \ + ((COM_OPEN << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT | \ + COM_OPEN << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)) +#define MAX77843_MUIC_CONTROL1_SW_USB \ + ((COM_USB << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT | \ + COM_USB << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)) +#define MAX77843_MUIC_CONTROL1_SW_AUDIO \ + ((COM_AUDIO << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT | \ + COM_AUDIO << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)) +#define MAX77843_MUIC_CONTROL1_SW_UART \ + ((COM_UART << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT | \ + COM_UART << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)) +#define MAX77843_MUIC_CONTROL1_SW_AUX_USB \ + ((COM_AUX_USB << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT | \ + COM_AUX_USB << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)) +#define MAX77843_MUIC_CONTROL1_SW_AUX_UART \ + ((COM_AUX_UART << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT | \ + COM_AUX_UART << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)) #define MAX77843_DISABLE 0 #define MAX77843_ENABLE 1 #define CONTROL4_AUTO_DISABLE \ - ((MAX77843_DISABLE << CONTROL4_USBAUTO_SHIFT) | \ - (MAX77843_DISABLE << CONTROL4_FCTAUTO_SHIFT)) + ((MAX77843_DISABLE << MAX77843_MUIC_CONTROL4_USBAUTO_SHIFT) | \ + (MAX77843_DISABLE << MAX77843_MUIC_CONTROL4_FCTAUTO_SHIFT)) #define CONTROL4_AUTO_ENABLE \ - ((MAX77843_ENABLE << CONTROL4_USBAUTO_SHIFT) | \ - (MAX77843_ENABLE << CONTROL4_FCTAUTO_SHIFT)) + ((MAX77843_ENABLE << MAX77843_MUIC_CONTROL4_USBAUTO_SHIFT) | \ + (MAX77843_ENABLE << MAX77843_MUIC_CONTROL4_FCTAUTO_SHIFT)) /* MAX77843 SAFEOUT LDO Control register */ #define SAFEOUTCTRL_SAFEOUT1_SHIFT 0 From 9e9a08e86733d994fe08876de7878148411d6bb5 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:54 +0900 Subject: [PATCH 32/70] regulator: max77693: Add support for MAX77843 device The charger and safeout parts of MAX77843 are almost the same as MAX77693. From regulator point of view the only differences are the constraints and register values related to these constraints. Now the max77693 regulator driver can be used for MAX77843 device. Signed-off-by: Krzysztof Kozlowski Acked-by: Mark Brown Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 8 +-- drivers/regulator/max77693.c | 125 +++++++++++++++++++++++++++++++---- 2 files changed, 117 insertions(+), 16 deletions(-) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index bef3bde6971b..b1022c2fd877 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -407,13 +407,13 @@ config REGULATOR_MAX77686 Exynos-4 chips to control VARM and VINT voltages. config REGULATOR_MAX77693 - tristate "Maxim MAX77693 regulator" - depends on MFD_MAX77693 + tristate "Maxim 77693/77843 regulator" + depends on (MFD_MAX77693 || MFD_MAX77843) help - This driver controls a Maxim 77693 regulator via I2C bus. + This driver controls a Maxim 77693/77843 regulators via I2C bus. The regulators include two LDOs, 'SAFEOUT1', 'SAFEOUT2' and one current regulator 'CHARGER'. This is suitable for - Exynos-4x12 chips. + Exynos-4x12 (MAX77693) or Exynos5433 (MAX77843) SoC chips. config REGULATOR_MAX77802 tristate "Maxim 77802 regulator" diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c index c6ab440a74b7..788379b87962 100644 --- a/drivers/regulator/max77693.c +++ b/drivers/regulator/max77693.c @@ -1,8 +1,9 @@ /* - * max77693.c - Regulator driver for the Maxim 77693 + * max77693.c - Regulator driver for the Maxim 77693 and 77843 * - * Copyright (C) 2013 Samsung Electronics + * Copyright (C) 2013-2015 Samsung Electronics * Jonghwa Lee + * Krzysztof Kozlowski * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -31,10 +32,23 @@ #include #include #include +#include #include #include -/* Charger regulator differences between MAX77693 and MAX77843 */ +/* + * ID for MAX77843 regulators. + * There is no need for such for MAX77693. + */ +enum max77843_regulator_type { + MAX77843_SAFEOUT1 = 0, + MAX77843_SAFEOUT2, + MAX77843_CHARGER, + + MAX77843_NUM, +}; + +/* Register differences between chargers: MAX77693 and MAX77843 */ struct chg_reg_data { unsigned int linear_reg; unsigned int linear_mask; @@ -43,9 +57,14 @@ struct chg_reg_data { }; /* - * CHARGER regulator - Min : 20mA, Max : 2580mA, step : 20mA + * MAX77693 CHARGER regulator - Min : 20mA, Max : 2580mA, step : 20mA * 0x00, 0x01, 0x2, 0x03 = 60 mA * 0x04 ~ 0x7E = (60 + (X - 3) * 20) mA + * Actually for MAX77693 the driver manipulates the maximum input current, + * not the fast charge current (output). This should be fixed. + * + * On MAX77843 the calculation formula is the same (except values). + * Fortunately it properly manipulates the fast charge current. */ static int max77693_chg_get_current_limit(struct regulator_dev *rdev) { @@ -95,6 +114,26 @@ static int max77693_chg_set_current_limit(struct regulator_dev *rdev, } /* end of CHARGER regulator ops */ +/* Returns regmap suitable for given regulator on chosen device */ +static struct regmap *max77693_get_regmap(enum max77693_types type, + struct max77693_dev *max77693, + int reg_id) +{ + if (type == TYPE_MAX77693) + return max77693->regmap; + + /* Else: TYPE_MAX77843 */ + switch (reg_id) { + case MAX77843_SAFEOUT1: + case MAX77843_SAFEOUT2: + return max77693->regmap; + case MAX77843_CHARGER: + return max77693->regmap_chg; + default: + return max77693->regmap; + } +} + static const unsigned int max77693_safeout_table[] = { 4850000, 4900000, @@ -119,7 +158,7 @@ static struct regulator_ops max77693_charger_ops = { .set_current_limit = max77693_chg_set_current_limit, }; -#define regulator_desc_esafeout(_num) { \ +#define max77693_regulator_desc_esafeout(_num) { \ .name = "ESAFEOUT"#_num, \ .id = MAX77693_ESAFEOUT##_num, \ .of_match = of_match_ptr("ESAFEOUT"#_num), \ @@ -135,9 +174,9 @@ static struct regulator_ops max77693_charger_ops = { .enable_mask = SAFEOUT_CTRL_ENSAFEOUT##_num##_MASK , \ } -static const struct regulator_desc regulators[] = { - regulator_desc_esafeout(1), - regulator_desc_esafeout(2), +static const struct regulator_desc max77693_supported_regulators[] = { + max77693_regulator_desc_esafeout(1), + max77693_regulator_desc_esafeout(2), { .name = "CHARGER", .id = MAX77693_CHARGER, @@ -160,19 +199,79 @@ static const struct chg_reg_data max77693_chg_reg_data = { .min_sel = 3, }; +#define max77843_regulator_desc_esafeout(num) { \ + .name = "SAFEOUT" # num, \ + .id = MAX77843_SAFEOUT ## num, \ + .ops = &max77693_safeout_ops, \ + .of_match = of_match_ptr("SAFEOUT" # num), \ + .regulators_node = of_match_ptr("regulators"), \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(max77693_safeout_table), \ + .volt_table = max77693_safeout_table, \ + .enable_reg = MAX77843_SYS_REG_SAFEOUTCTRL, \ + .enable_mask = MAX77843_REG_SAFEOUTCTRL_ENSAFEOUT ## num, \ + .vsel_reg = MAX77843_SYS_REG_SAFEOUTCTRL, \ + .vsel_mask = MAX77843_REG_SAFEOUTCTRL_SAFEOUT ## num ## _MASK, \ +} + +static const struct regulator_desc max77843_supported_regulators[] = { + [MAX77843_SAFEOUT1] = max77843_regulator_desc_esafeout(1), + [MAX77843_SAFEOUT2] = max77843_regulator_desc_esafeout(2), + [MAX77843_CHARGER] = { + .name = "CHARGER", + .id = MAX77843_CHARGER, + .ops = &max77693_charger_ops, + .of_match = of_match_ptr("CHARGER"), + .regulators_node = of_match_ptr("regulators"), + .type = REGULATOR_CURRENT, + .owner = THIS_MODULE, + .enable_reg = MAX77843_CHG_REG_CHG_CNFG_00, + .enable_mask = MAX77843_CHG_MASK, + .enable_val = MAX77843_CHG_MASK, + }, +}; + +static const struct chg_reg_data max77843_chg_reg_data = { + .linear_reg = MAX77843_CHG_REG_CHG_CNFG_02, + .linear_mask = MAX77843_CHG_FAST_CHG_CURRENT_MASK, + .uA_step = MAX77843_CHG_FAST_CHG_CURRENT_STEP, + .min_sel = 2, +}; + static int max77693_pmic_probe(struct platform_device *pdev) { + enum max77693_types type = platform_get_device_id(pdev)->driver_data; struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent); + const struct regulator_desc *regulators; + unsigned int regulators_size; int i; struct regulator_config config = { }; config.dev = iodev->dev; - config.regmap = iodev->regmap; - config.driver_data = (void *)&max77693_chg_reg_data; - for (i = 0; i < ARRAY_SIZE(regulators); i++) { + switch (type) { + case TYPE_MAX77693: + regulators = max77693_supported_regulators; + regulators_size = ARRAY_SIZE(max77693_supported_regulators); + config.driver_data = (void *)&max77693_chg_reg_data; + break; + case TYPE_MAX77843: + regulators = max77843_supported_regulators; + regulators_size = ARRAY_SIZE(max77843_supported_regulators); + config.driver_data = (void *)&max77843_chg_reg_data; + break; + default: + dev_err(&pdev->dev, "Unsupported device type: %u\n", type); + return -ENODEV; + } + + for (i = 0; i < regulators_size; i++) { struct regulator_dev *rdev; + config.regmap = max77693_get_regmap(type, iodev, + regulators[i].id); + rdev = devm_regulator_register(&pdev->dev, ®ulators[i], &config); if (IS_ERR(rdev)) { @@ -187,6 +286,7 @@ static int max77693_pmic_probe(struct platform_device *pdev) static const struct platform_device_id max77693_pmic_id[] = { { "max77693-pmic", TYPE_MAX77693 }, + { "max77843-regulator", TYPE_MAX77843 }, {}, }; @@ -202,6 +302,7 @@ static struct platform_driver max77693_pmic_driver = { module_platform_driver(max77693_pmic_driver); -MODULE_DESCRIPTION("MAXIM MAX77693 regulator driver"); +MODULE_DESCRIPTION("MAXIM 77693/77843 regulator driver"); MODULE_AUTHOR("Jonghwa Lee "); +MODULE_AUTHOR("Krzysztof Kozlowski "); MODULE_LICENSE("GPL"); From 2a32b401a11fc48193e58b0a5af6ea82de0272de Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 15 Jul 2015 21:59:55 +0900 Subject: [PATCH 33/70] regulator: Remove the max77843 driver The max77693 regulator driver supports Maxim 77843 device so remove the max77843 driver. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 8 -- drivers/regulator/Makefile | 1 - drivers/regulator/max77843.c | 203 ----------------------------------- 3 files changed, 212 deletions(-) delete mode 100644 drivers/regulator/max77843.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index b1022c2fd877..ed5ac9eb5063 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -424,14 +424,6 @@ config REGULATOR_MAX77802 Exynos5420/Exynos5800 SoCs to control various voltages. It includes support for control of voltage and ramp speed. -config REGULATOR_MAX77843 - tristate "Maxim 77843 regulator" - depends on MFD_MAX77843 - help - This driver controls a Maxim 77843 regulator. - The regulator include two 'SAFEOUT' for USB(Universal Serial Bus) - This is suitable for Exynos5433 SoC chips. - config REGULATOR_MC13XXX_CORE tristate diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 91bf76267404..6429e629dcb6 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -56,7 +56,6 @@ obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o obj-$(CONFIG_REGULATOR_MAX77686) += max77686.o obj-$(CONFIG_REGULATOR_MAX77693) += max77693.o obj-$(CONFIG_REGULATOR_MAX77802) += max77802.o -obj-$(CONFIG_REGULATOR_MAX77843) += max77843.o obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o diff --git a/drivers/regulator/max77843.c b/drivers/regulator/max77843.c deleted file mode 100644 index 9926247aae6b..000000000000 --- a/drivers/regulator/max77843.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * max77843.c - Regulator driver for the Maxim MAX77843 - * - * Copyright (C) 2015 Samsung Electronics - * Author: Jaewon Kim - * Author: Beomho Seo - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include -#include -#include -#include -#include -#include -#include - -enum max77843_regulator_type { - MAX77843_SAFEOUT1 = 0, - MAX77843_SAFEOUT2, - MAX77843_CHARGER, - - MAX77843_NUM, -}; - -static const unsigned int max77843_safeout_voltage_table[] = { - 4850000, - 4900000, - 4950000, - 3300000, -}; - -static int max77843_reg_get_current_limit(struct regulator_dev *rdev) -{ - struct regmap *regmap = rdev->regmap; - unsigned int chg_min_uA = rdev->constraints->min_uA; - unsigned int chg_max_uA = rdev->constraints->max_uA; - unsigned int val; - int ret; - unsigned int reg, sel; - - ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_CNFG_02, ®); - if (ret) { - dev_err(&rdev->dev, "Failed to read charger register\n"); - return ret; - } - - sel = reg & MAX77843_CHG_FAST_CHG_CURRENT_MASK; - - if (sel < 0x03) - sel = 0; - else - sel -= 2; - - val = chg_min_uA + MAX77843_CHG_FAST_CHG_CURRENT_STEP * sel; - if (val > chg_max_uA) - return -EINVAL; - - return val; -} - -static int max77843_reg_set_current_limit(struct regulator_dev *rdev, - int min_uA, int max_uA) -{ - struct regmap *regmap = rdev->regmap; - unsigned int chg_min_uA = rdev->constraints->min_uA; - int sel = 0; - - while (chg_min_uA + MAX77843_CHG_FAST_CHG_CURRENT_STEP * sel < min_uA) - sel++; - - if (chg_min_uA + MAX77843_CHG_FAST_CHG_CURRENT_STEP * sel > max_uA) - return -EINVAL; - - sel += 2; - - return regmap_write(regmap, MAX77843_CHG_REG_CHG_CNFG_02, sel); -} - -static struct regulator_ops max77843_charger_ops = { - .is_enabled = regulator_is_enabled_regmap, - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .get_current_limit = max77843_reg_get_current_limit, - .set_current_limit = max77843_reg_set_current_limit, -}; - -static struct regulator_ops max77843_regulator_ops = { - .is_enabled = regulator_is_enabled_regmap, - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .list_voltage = regulator_list_voltage_table, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, -}; - -#define MAX77843_SAFEOUT(num) { \ - .name = "SAFEOUT" # num, \ - .id = MAX77843_SAFEOUT ## num, \ - .ops = &max77843_regulator_ops, \ - .of_match = of_match_ptr("SAFEOUT" # num), \ - .regulators_node = of_match_ptr("regulators"), \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .n_voltages = ARRAY_SIZE(max77843_safeout_voltage_table), \ - .volt_table = max77843_safeout_voltage_table, \ - .enable_reg = MAX77843_SYS_REG_SAFEOUTCTRL, \ - .enable_mask = MAX77843_REG_SAFEOUTCTRL_ENSAFEOUT ## num, \ - .vsel_reg = MAX77843_SYS_REG_SAFEOUTCTRL, \ - .vsel_mask = MAX77843_REG_SAFEOUTCTRL_SAFEOUT ## num ## _MASK, \ -} - -static const struct regulator_desc max77843_supported_regulators[] = { - [MAX77843_SAFEOUT1] = MAX77843_SAFEOUT(1), - [MAX77843_SAFEOUT2] = MAX77843_SAFEOUT(2), - [MAX77843_CHARGER] = { - .name = "CHARGER", - .id = MAX77843_CHARGER, - .ops = &max77843_charger_ops, - .of_match = of_match_ptr("CHARGER"), - .regulators_node = of_match_ptr("regulators"), - .type = REGULATOR_CURRENT, - .owner = THIS_MODULE, - .enable_reg = MAX77843_CHG_REG_CHG_CNFG_00, - .enable_mask = MAX77843_CHG_MASK | MAX77843_CHG_BUCK_MASK, - .enable_val = MAX77843_CHG_MASK | MAX77843_CHG_BUCK_MASK, - }, -}; - -static struct regmap *max77843_get_regmap(struct max77693_dev *max77843, - int reg_id) -{ - switch (reg_id) { - case MAX77843_SAFEOUT1: - case MAX77843_SAFEOUT2: - return max77843->regmap; - case MAX77843_CHARGER: - return max77843->regmap_chg; - default: - return max77843->regmap; - } -} - -static int max77843_regulator_probe(struct platform_device *pdev) -{ - struct max77693_dev *max77843 = dev_get_drvdata(pdev->dev.parent); - struct regulator_config config = {}; - int i; - - config.dev = max77843->dev; - config.driver_data = max77843; - - for (i = 0; i < ARRAY_SIZE(max77843_supported_regulators); i++) { - struct regulator_dev *regulator; - - config.regmap = max77843_get_regmap(max77843, - max77843_supported_regulators[i].id); - - regulator = devm_regulator_register(&pdev->dev, - &max77843_supported_regulators[i], &config); - if (IS_ERR(regulator)) { - dev_err(&pdev->dev, - "Failed to regiser regulator-%d\n", i); - return PTR_ERR(regulator); - } - } - - return 0; -} - -static const struct platform_device_id max77843_regulator_id[] = { - { "max77843-regulator", }, - { /* sentinel */ }, -}; - -static struct platform_driver max77843_regulator_driver = { - .driver = { - .name = "max77843-regulator", - }, - .probe = max77843_regulator_probe, - .id_table = max77843_regulator_id, -}; - -static int __init max77843_regulator_init(void) -{ - return platform_driver_register(&max77843_regulator_driver); -} -subsys_initcall(max77843_regulator_init); - -static void __exit max77843_regulator_exit(void) -{ - platform_driver_unregister(&max77843_regulator_driver); -} -module_exit(max77843_regulator_exit); - -MODULE_AUTHOR("Jaewon Kim "); -MODULE_AUTHOR("Beomho Seo "); -MODULE_DESCRIPTION("Maxim MAX77843 regulator driver"); -MODULE_LICENSE("GPL"); From 0ec5f8bd9920fc1a7d0b0d2d4876ea80665a70fd Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Mon, 20 Jul 2015 17:23:52 +0800 Subject: [PATCH 34/70] regulator: rk808: add the description about dvs gpio for rk808 add the description about dvs1, dvs2, and add the example. Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/mfd/rk808.txt | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt index 9e6e2592e5c8..4ca6aab4273a 100644 --- a/Documentation/devicetree/bindings/mfd/rk808.txt +++ b/Documentation/devicetree/bindings/mfd/rk808.txt @@ -24,6 +24,10 @@ Optional properties: - vcc10-supply: The input supply for LDO_REG6 - vcc11-supply: The input supply for LDO_REG8 - vcc12-supply: The input supply for SWITCH_REG2 +- dvs-gpios: buck1/2 can be controlled by gpio dvs, this is GPIO specifiers + for 2 host gpio's used for dvs. The format of the gpio specifier depends in + the gpio controller. If DVS GPIOs aren't present, voltage changes will happen + very quickly with no slow ramp time. Regulators: All the regulators of RK808 to be instantiated shall be listed in a child node named 'regulators'. Each regulator is represented @@ -55,7 +59,9 @@ Example: interrupt-parent = <&gpio0>; interrupts = <4 IRQ_TYPE_LEVEL_LOW>; pinctrl-names = "default"; - pinctrl-0 = <&pmic_int>; + pinctrl-0 = <&pmic_int &dvs_1 &dvs_2>; + dvs-gpios = <&gpio7 11 GPIO_ACTIVE_HIGH>, + <&gpio7 15 GPIO_ACTIVE_HIGH>; reg = <0x1b>; rockchip,system-power-controller; wakeup-source; From bad47ad2eef341a79ff355734147efe933618033 Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Mon, 20 Jul 2015 17:23:53 +0800 Subject: [PATCH 35/70] regulator: rk808: fixed the overshoot when adjust voltage There is a overshoot in DCDC1/DCDC2, we have 2 method to workaround: 1st is use dvs pin to switch the voltage between value in BUCKn_ON_VSEL and BUCKn_DVS_VSEL. If DVS pin is inactive, the voltage of DCDC1/DCDC2 are controlled by BUCKn_ON_VSEL, when we pull dvs1/dvs2 pin to active, they would be controlled by BUCKn_DVS_VSEL. In this case, the ramp rate is same as the value programmed in BUCKn_RATE, and the fastest rate is 10mv/us. 2nd method is gradual adjustment, adjust the voltage to a target value step by step via i2c, each step is set to 100 mA. If you write the voltage directly using an i2c write the rk808 will always ramp as fast as it possibly can, about 100mv/us. Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 219 ++++++++++++++++++++++++++-- 1 file changed, 207 insertions(+), 12 deletions(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 3fd44353cc80..ca913fd15598 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -16,10 +16,13 @@ * more details. */ -#include +#include +#include #include -#include +#include #include +#include +#include #include #include @@ -36,12 +39,25 @@ #define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET) #define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET) +#define RK808_DVS2_POL BIT(2) +#define RK808_DVS1_POL BIT(1) + /* Offset from XXX_ON_VSEL to XXX_SLP_VSEL */ #define RK808_SLP_REG_OFFSET 1 +/* Offset from XXX_ON_VSEL to XXX_DVS_VSEL */ +#define RK808_DVS_REG_OFFSET 2 + /* Offset from XXX_EN_REG to SLEEP_SET_OFF_XXX */ #define RK808_SLP_SET_OFF_REG_OFFSET 2 +/* max steps for increase voltage of Buck1/2, equal 100mv*/ +#define MAX_STEPS_ONE_TIME 8 + +struct rk808_regulator_data { + struct gpio_desc *dvs_gpio[2]; +}; + static const int rk808_buck_config_regs[] = { RK808_BUCK1_CONFIG_REG, RK808_BUCK2_CONFIG_REG, @@ -70,6 +86,131 @@ static const struct regulator_linear_range rk808_ldo6_voltage_ranges[] = { REGULATOR_LINEAR_RANGE(800000, 0, 17, 100000), }; +static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev) +{ + struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); + int id = rdev->desc->id - RK808_ID_DCDC1; + struct gpio_desc *gpio = pdata->dvs_gpio[id]; + unsigned int val; + int ret; + + if (IS_ERR(gpio) || gpiod_get_value(gpio) == 0) + return regulator_get_voltage_sel_regmap(rdev); + + ret = regmap_read(rdev->regmap, + rdev->desc->vsel_reg + RK808_DVS_REG_OFFSET, + &val); + if (ret != 0) + return ret; + + val &= rdev->desc->vsel_mask; + val >>= ffs(rdev->desc->vsel_mask) - 1; + + return val; +} + +static int rk808_buck1_2_i2c_set_voltage_sel(struct regulator_dev *rdev, + unsigned sel) +{ + int ret, delta_sel; + unsigned int old_sel, tmp, val, mask = rdev->desc->vsel_mask; + + ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &val); + if (ret != 0) + return ret; + + tmp = val & ~mask; + old_sel = val & mask; + old_sel >>= ffs(mask) - 1; + delta_sel = sel - old_sel; + + /* + * If directly modify the register to change the voltage, we will face + * the risk of overshoot. Put it into a multi-step, can effectively + * avoid this problem, a step is 100mv here. + */ + while (delta_sel > MAX_STEPS_ONE_TIME) { + old_sel += MAX_STEPS_ONE_TIME; + val = old_sel << (ffs(mask) - 1); + val |= tmp; + + /* + * i2c is 400kHz (2.5us per bit) and we must transmit _at least_ + * 3 bytes (24 bits) plus start and stop so 26 bits. So we've + * got more than 65 us between each voltage change and thus + * won't ramp faster than ~1500 uV / us. + */ + ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); + delta_sel = sel - old_sel; + } + + sel <<= ffs(mask) - 1; + val = tmp | sel; + ret = regmap_write(rdev->regmap, rdev->desc->vsel_reg, val); + + /* + * When we change the voltage register directly, the ramp rate is about + * 100000uv/us, wait 1us to make sure the target voltage to be stable, + * so we needn't wait extra time after that. + */ + udelay(1); + + return ret; +} + +static int rk808_buck1_2_set_voltage_sel(struct regulator_dev *rdev, + unsigned sel) +{ + struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); + int id = rdev->desc->id - RK808_ID_DCDC1; + struct gpio_desc *gpio = pdata->dvs_gpio[id]; + unsigned int reg = rdev->desc->vsel_reg; + unsigned old_sel; + int ret, gpio_level; + + if (IS_ERR(gpio)) + return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel); + + gpio_level = gpiod_get_value(gpio); + if (gpio_level == 0) { + reg += RK808_DVS_REG_OFFSET; + ret = regmap_read(rdev->regmap, rdev->desc->vsel_reg, &old_sel); + } else { + ret = regmap_read(rdev->regmap, + reg + RK808_DVS_REG_OFFSET, + &old_sel); + } + + if (ret != 0) + return ret; + + sel <<= ffs(rdev->desc->vsel_mask) - 1; + sel |= old_sel & ~rdev->desc->vsel_mask; + + ret = regmap_write(rdev->regmap, reg, sel); + if (ret) + return ret; + + gpiod_set_value(gpio, !gpio_level); + + return ret; +} + +static int rk808_buck1_2_set_voltage_time_sel(struct regulator_dev *rdev, + unsigned int old_selector, + unsigned int new_selector) +{ + struct rk808_regulator_data *pdata = rdev_get_drvdata(rdev); + int id = rdev->desc->id - RK808_ID_DCDC1; + struct gpio_desc *gpio = pdata->dvs_gpio[id]; + + /* if there is no dvs1/2 pin, we don't need wait extra time here. */ + if (IS_ERR(gpio)) + return 0; + + return regulator_set_voltage_time_sel(rdev, old_selector, new_selector); +} + static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) { unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US; @@ -137,8 +278,9 @@ static int rk808_set_suspend_disable(struct regulator_dev *rdev) static struct regulator_ops rk808_buck1_2_ops = { .list_voltage = regulator_list_voltage_linear_range, .map_voltage = regulator_map_voltage_linear_range, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = rk808_buck1_2_get_voltage_sel_regmap, + .set_voltage_sel = rk808_buck1_2_set_voltage_sel, + .set_voltage_time_sel = rk808_buck1_2_set_voltage_time_sel, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, @@ -380,25 +522,76 @@ static struct of_regulator_match rk808_reg_matches[] = { [RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" }, }; +static int rk808_regulator_dt_parse_pdata(struct device *dev, + struct device *client_dev, + struct regmap *map, + struct rk808_regulator_data *pdata) +{ + struct device_node *np; + int tmp, ret, i; + + np = of_get_child_by_name(client_dev->of_node, "regulators"); + if (!np) + return -ENXIO; + + ret = of_regulator_match(dev, np, rk808_reg_matches, + RK808_NUM_REGULATORS); + if (ret < 0) + goto dt_parse_end; + + for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) { + pdata->dvs_gpio[i] = gpiod_get_index(client_dev, "dvs", i); + if (IS_ERR(pdata->dvs_gpio[i])) { + dev_warn(dev, "there is no dvs%d gpio\n", i); + continue; + } + + gpiod_direction_output(pdata->dvs_gpio[i], 0); + + tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL; + ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp, + gpiod_is_active_low(pdata->dvs_gpio[i]) ? + 0 : tmp); + } + +dt_parse_end: + of_node_put(np); + return ret; +} + +static int rk808_regulator_remove(struct platform_device *pdev) +{ + struct rk808_regulator_data *pdata = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) { + if (!IS_ERR(pdata->dvs_gpio[i])) + gpiod_put(pdata->dvs_gpio[i]); + } + + return 0; +} + static int rk808_regulator_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); struct i2c_client *client = rk808->i2c; - struct device_node *reg_np; struct regulator_config config = {}; struct regulator_dev *rk808_rdev; + struct rk808_regulator_data *pdata; int ret, i; - reg_np = of_get_child_by_name(client->dev.of_node, "regulators"); - if (!reg_np) - return -ENXIO; + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; - ret = of_regulator_match(&pdev->dev, reg_np, rk808_reg_matches, - RK808_NUM_REGULATORS); - of_node_put(reg_np); + ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev, + rk808->regmap, pdata); if (ret < 0) return ret; + platform_set_drvdata(pdev, pdata); + /* Instantiate the regulators */ for (i = 0; i < RK808_NUM_REGULATORS; i++) { if (!rk808_reg_matches[i].init_data || @@ -406,7 +599,7 @@ static int rk808_regulator_probe(struct platform_device *pdev) continue; config.dev = &client->dev; - config.driver_data = rk808; + config.driver_data = pdata; config.regmap = rk808->regmap; config.of_node = rk808_reg_matches[i].of_node; config.init_data = rk808_reg_matches[i].init_data; @@ -425,8 +618,10 @@ static int rk808_regulator_probe(struct platform_device *pdev) static struct platform_driver rk808_regulator_driver = { .probe = rk808_regulator_probe, + .remove = rk808_regulator_remove, .driver = { .name = "rk808-regulator", + .owner = THIS_MODULE, }, }; From 604d4994277f3526c8ec7ba16f32e236d5ca3e78 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 21 Jul 2015 16:46:24 +0200 Subject: [PATCH 36/70] regulator: rk808: add #include for gpiod functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a build problem on mips found by the kbuild test robot: drivers/regulator/rk808-regulator.c: In function 'rk808_buck1_2_get_voltage_sel_regmap': drivers/regulator/rk808-regulator.c:97:2: error: implicit declaration of function 'gpiod_get_value' [-Werror=implicit-function-declaration] if (IS_ERR(gpio) || gpiod_get_value(gpio) == 0) ^ Fixes: bad47ad2eef3 ("regulator: rk808: fixed the overshoot when adjust voltage") Signed-off-by: Uwe Kleine-König Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index ca913fd15598..ac9436d2ea8d 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -25,6 +25,7 @@ #include #include #include +#include /* Field Definitions */ #define RK808_BUCK_VSEL_MASK 0x3f From a13eaf02e2d6326a59f142db329faf4efb527e79 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 21 Jul 2015 16:46:25 +0200 Subject: [PATCH 37/70] regulator: rk808: make better use of the gpiod API MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The gpiod functions include variants for managed gpiod resources. Use it to simplify the remove function. As the driver handles a device node without a specification of dvs gpios just fine, additionally use the variant of gpiod_get exactly for this use case. This makes error checking more strict. As a third benefit this patch makes the driver use the flags parameter of gpiod_get* which will not be optional any more after 4.2 and so prevents a build failure when the respective gpiod commit is merged. Signed-off-by: Uwe Kleine-König Signed-off-by: Mark Brown --- drivers/regulator/rk808-regulator.c | 32 +++++++++++------------------ 1 file changed, 12 insertions(+), 20 deletions(-) diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index ac9436d2ea8d..d86a3dcd61e2 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -95,7 +95,7 @@ static int rk808_buck1_2_get_voltage_sel_regmap(struct regulator_dev *rdev) unsigned int val; int ret; - if (IS_ERR(gpio) || gpiod_get_value(gpio) == 0) + if (!gpio || gpiod_get_value(gpio) == 0) return regulator_get_voltage_sel_regmap(rdev); ret = regmap_read(rdev->regmap, @@ -169,7 +169,7 @@ static int rk808_buck1_2_set_voltage_sel(struct regulator_dev *rdev, unsigned old_sel; int ret, gpio_level; - if (IS_ERR(gpio)) + if (!gpio) return rk808_buck1_2_i2c_set_voltage_sel(rdev, sel); gpio_level = gpiod_get_value(gpio); @@ -206,7 +206,7 @@ static int rk808_buck1_2_set_voltage_time_sel(struct regulator_dev *rdev, struct gpio_desc *gpio = pdata->dvs_gpio[id]; /* if there is no dvs1/2 pin, we don't need wait extra time here. */ - if (IS_ERR(gpio)) + if (!gpio) return 0; return regulator_set_voltage_time_sel(rdev, old_selector, new_selector); @@ -541,14 +541,20 @@ static int rk808_regulator_dt_parse_pdata(struct device *dev, goto dt_parse_end; for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) { - pdata->dvs_gpio[i] = gpiod_get_index(client_dev, "dvs", i); + pdata->dvs_gpio[i] = + devm_gpiod_get_index_optional(client_dev, "dvs", i, + GPIOD_OUT_LOW); if (IS_ERR(pdata->dvs_gpio[i])) { + ret = PTR_ERR(pdata->dvs_gpio[i]); + dev_err(dev, "failed to get dvs%d gpio (%d)\n", i, ret); + goto dt_parse_end; + } + + if (!pdata->dvs_gpio[i]) { dev_warn(dev, "there is no dvs%d gpio\n", i); continue; } - gpiod_direction_output(pdata->dvs_gpio[i], 0); - tmp = i ? RK808_DVS2_POL : RK808_DVS1_POL; ret = regmap_update_bits(map, RK808_IO_POL_REG, tmp, gpiod_is_active_low(pdata->dvs_gpio[i]) ? @@ -560,19 +566,6 @@ dt_parse_end: return ret; } -static int rk808_regulator_remove(struct platform_device *pdev) -{ - struct rk808_regulator_data *pdata = platform_get_drvdata(pdev); - int i; - - for (i = 0; i < ARRAY_SIZE(pdata->dvs_gpio); i++) { - if (!IS_ERR(pdata->dvs_gpio[i])) - gpiod_put(pdata->dvs_gpio[i]); - } - - return 0; -} - static int rk808_regulator_probe(struct platform_device *pdev) { struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent); @@ -619,7 +612,6 @@ static int rk808_regulator_probe(struct platform_device *pdev) static struct platform_driver rk808_regulator_driver = { .probe = rk808_regulator_probe, - .remove = rk808_regulator_remove, .driver = { .name = "rk808-regulator", .owner = THIS_MODULE, From a70f0d027c83350ad46ca3e86e4c781bfed7fcc2 Mon Sep 17 00:00:00 2001 From: Daniel Kurtz Date: Wed, 22 Jul 2015 18:23:26 +0800 Subject: [PATCH 38/70] regulator: tps6586x: silence pointer-to-int-cast of_regulator_match.driver_data is (void *). tps6586x uses it to store an anonymous enum value (those TPS6586X_ID_ values). Later, it tries to extract the ID by casting directly to an int, which is a no-no ([-Wpointer-to-int-cast]): drivers/regulator/tps6586x-regulator.c: In function 'tps6586x_parse_regulator_dt': drivers/regulator/tps6586x-regulator.c:430:8: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] id = (int)tps6586x_matches[i].driver_data; ^ Instead of casting to int, uintptr_t is better suited for receiving and comparing integers extracted from void *. This is especially true on 64-bit systems where sizeof(void *) != sizeof(int). Signed-off-by: Daniel Kurtz Signed-off-by: Mark Brown --- drivers/regulator/tps6586x-regulator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c index 2852de05d64d..9e9d22038017 100644 --- a/drivers/regulator/tps6586x-regulator.c +++ b/drivers/regulator/tps6586x-regulator.c @@ -422,12 +422,12 @@ static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( return NULL; for (i = 0; i < num; i++) { - int id; + uintptr_t id; if (!tps6586x_matches[i].init_data) continue; pdata->reg_init_data[i] = tps6586x_matches[i].init_data; - id = (int)tps6586x_matches[i].driver_data; + id = (uintptr_t)tps6586x_matches[i].driver_data; if (id == TPS6586X_ID_SYS) sys_rail = pdata->reg_init_data[i]->constraints.name; From 678cdb2fbd7e44b8905a8f4e770c694eb77f0395 Mon Sep 17 00:00:00 2001 From: Henry Chen Date: Fri, 24 Jul 2015 13:24:40 +0800 Subject: [PATCH 39/70] regulator: mt6311: Add document for mt6311 regulator This patch adds a list of supported regulator names to the devicetree binding documentation for Mediatek MT6311 PMIC. Signed-off-by: Henry Chen Reviewed-by: Javier Martinez Canillas Signed-off-by: Mark Brown --- .../bindings/regulator/mt6311-regulator.txt | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/mt6311-regulator.txt diff --git a/Documentation/devicetree/bindings/regulator/mt6311-regulator.txt b/Documentation/devicetree/bindings/regulator/mt6311-regulator.txt new file mode 100644 index 000000000000..02649d8b3f5a --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mt6311-regulator.txt @@ -0,0 +1,35 @@ +Mediatek MT6311 Regulator Driver + +Required properties: +- compatible: "mediatek,mt6311-regulator" +- reg: I2C slave address, usually 0x6b. +- regulators: List of regulators provided by this controller. It is named + to VDVFS and VBIASN. + The definition for each of these nodes is defined using the standard binding + for regulators at Documentation/devicetree/bindings/regulator/regulator.txt. + +The valid names for regulators are: +BUCK: + VDVFS +LDO: + VBIASN + +Example: + mt6311: pmic@6b { + compatible = "mediatek,mt6311-regulator"; + reg = <0x6b>; + + regulators { + mt6311_vcpu_reg: VDVFS { + regulator-name = "VDVFS"; + regulator-min-microvolt = < 600000>; + regulator-max-microvolt = <1400000>; + regulator-ramp-delay = <10000>; + }; + mt6311_ldo_reg: VBIASN { + regulator-name = "VBIASN"; + regulator-min-microvolt = <200000>; + regulator-max-microvolt = <800000>; + }; + }; + }; From 8766018b6ef73ca124d13b0d0a06dec906726cc8 Mon Sep 17 00:00:00 2001 From: Henry Chen Date: Fri, 24 Jul 2015 13:24:41 +0800 Subject: [PATCH 40/70] regulator: mt6311: Add support for mt6311 regulator Add regulator support for mt6311. It has 2 regulaotrs - Buck and LDO, provide the related buck/ldo voltage data to the driver, and creates the regulator_desc table. Supported operations for Buck are enabled/disabled and voltage change, only enabled/disabled for LDO. Signed-off-by: Henry Chen Reviewed-by: Javier Martinez Canillas Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 9 ++ drivers/regulator/Makefile | 1 + drivers/regulator/mt6311-regulator.c | 180 +++++++++++++++++++++++++++ drivers/regulator/mt6311-regulator.h | 65 ++++++++++ include/linux/regulator/mt6311.h | 29 +++++ 5 files changed, 284 insertions(+) create mode 100644 drivers/regulator/mt6311-regulator.c create mode 100644 drivers/regulator/mt6311-regulator.h create mode 100644 include/linux/regulator/mt6311.h diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index bef3bde6971b..aab09ac499a0 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -451,6 +451,15 @@ config REGULATOR_MC13892 Say y here to support the regulators found on the Freescale MC13892 PMIC. +config REGULATOR_MT6311 + tristate "MediaTek MT6311 PMIC" + depends on I2C + help + Say y here to select this option to enable the power regulator of + MediaTek MT6311 PMIC. + This driver supports the control of different power rails of device + through regulator interface. + config REGULATOR_MT6397 tristate "MediaTek MT6397 PMIC" depends on MFD_MT6397 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 91bf76267404..45e790f92715 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -60,6 +60,7 @@ obj-$(CONFIG_REGULATOR_MAX77843) += max77843.o obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o +obj-$(CONFIG_REGULATOR_MT6311) += mt6311-regulator.o obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o diff --git a/drivers/regulator/mt6311-regulator.c b/drivers/regulator/mt6311-regulator.c new file mode 100644 index 000000000000..096e6202be1c --- /dev/null +++ b/drivers/regulator/mt6311-regulator.c @@ -0,0 +1,180 @@ +/* + * Copyright (c) 2015 MediaTek Inc. + * Author: Henry Chen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "mt6311-regulator.h" + +static const struct regmap_config mt6311_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = MT6311_FQMTR_CON4, +}; + +/* Default limits measured in millivolts and milliamps */ +#define MT6311_MIN_UV 600000 +#define MT6311_MAX_UV 1400000 +#define MT6311_STEP_UV 6250 + +static const struct regulator_linear_range buck_volt_range[] = { + REGULATOR_LINEAR_RANGE(MT6311_MIN_UV, 0, 0x7f, MT6311_STEP_UV), +}; + +static struct regulator_ops mt6311_buck_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +static struct regulator_ops mt6311_ldo_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +#define MT6311_BUCK(_id) \ +{\ + .name = #_id,\ + .ops = &mt6311_buck_ops,\ + .of_match = of_match_ptr(#_id),\ + .regulators_node = of_match_ptr("regulators"),\ + .type = REGULATOR_VOLTAGE,\ + .id = MT6311_ID_##_id,\ + .n_voltages = (MT6311_MAX_UV - MT6311_MIN_UV) / MT6311_STEP_UV + 1,\ + .min_uV = MT6311_MIN_UV,\ + .uV_step = MT6311_STEP_UV,\ + .owner = THIS_MODULE,\ + .linear_ranges = buck_volt_range, \ + .n_linear_ranges = ARRAY_SIZE(buck_volt_range), \ + .enable_reg = MT6311_VDVFS11_CON9,\ + .enable_mask = MT6311_PMIC_VDVFS11_EN_MASK,\ + .vsel_reg = MT6311_VDVFS11_CON12,\ + .vsel_mask = MT6311_PMIC_VDVFS11_VOSEL_MASK,\ +} + +#define MT6311_LDO(_id) \ +{\ + .name = #_id,\ + .ops = &mt6311_ldo_ops,\ + .of_match = of_match_ptr(#_id),\ + .regulators_node = of_match_ptr("regulators"),\ + .type = REGULATOR_VOLTAGE,\ + .id = MT6311_ID_##_id,\ + .owner = THIS_MODULE,\ + .enable_reg = MT6311_LDO_CON3,\ + .enable_mask = MT6311_PMIC_RG_VBIASN_EN_MASK,\ +} + +static struct regulator_desc mt6311_regulators[] = { + MT6311_BUCK(VDVFS), + MT6311_LDO(VBIASN), +}; + +/* + * I2C driver interface functions + */ +static int mt6311_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct regulator_config config = { }; + struct regulator_dev *rdev; + struct regmap *regmap; + int error, i, ret; + unsigned int data; + + regmap = devm_regmap_init_i2c(i2c, &mt6311_regmap_config); + if (IS_ERR(regmap)) { + error = PTR_ERR(regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + error); + return error; + } + + ret = regmap_read(regmap, MT6311_SWCID, &data); + if (ret < 0) { + dev_err(&i2c->dev, "Failed to read DEVICE_ID reg: %d\n", ret); + return ret; + } + + switch (data) { + case MT6311_E1_CID_CODE: + case MT6311_E2_CID_CODE: + case MT6311_E3_CID_CODE: + break; + default: + dev_err(&i2c->dev, "Unsupported device id = 0x%x.\n", data); + return -ENODEV; + } + + for (i = 0; i < MT6311_MAX_REGULATORS; i++) { + config.dev = &i2c->dev; + config.regmap = regmap; + + rdev = devm_regulator_register(&i2c->dev, + &mt6311_regulators[i], &config); + if (IS_ERR(rdev)) { + dev_err(&i2c->dev, + "Failed to register MT6311 regulator\n"); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static const struct i2c_device_id mt6311_i2c_id[] = { + {"mt6311", 0}, + {}, +}; +MODULE_DEVICE_TABLE(i2c, mt6311_i2c_id); + +#ifdef CONFIG_OF +static const struct of_device_id mt6311_dt_ids[] = { + { .compatible = "mediatek,mt6311-regulator", + .data = &mt6311_i2c_id[0] }, + {}, +}; +MODULE_DEVICE_TABLE(of, mt6311_dt_ids); +#endif + +static struct i2c_driver mt6311_regulator_driver = { + .driver = { + .name = "mt6311", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(mt6311_dt_ids), + }, + .probe = mt6311_i2c_probe, + .id_table = mt6311_i2c_id, +}; + +module_i2c_driver(mt6311_regulator_driver); + +MODULE_AUTHOR("Henry Chen "); +MODULE_DESCRIPTION("Regulator device driver for Mediatek MT6311"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/regulator/mt6311-regulator.h b/drivers/regulator/mt6311-regulator.h new file mode 100644 index 000000000000..5218db46a798 --- /dev/null +++ b/drivers/regulator/mt6311-regulator.h @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2015 MediaTek Inc. + * Author: Henry Chen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __MT6311_REGULATOR_H__ +#define __MT6311_REGULATOR_H__ + +#define MT6311_SWCID 0x01 + +#define MT6311_TOP_INT_CON 0x18 +#define MT6311_TOP_INT_MON 0x19 + +#define MT6311_VDVFS11_CON0 0x87 +#define MT6311_VDVFS11_CON7 0x88 +#define MT6311_VDVFS11_CON8 0x89 +#define MT6311_VDVFS11_CON9 0x8A +#define MT6311_VDVFS11_CON10 0x8B +#define MT6311_VDVFS11_CON11 0x8C +#define MT6311_VDVFS11_CON12 0x8D +#define MT6311_VDVFS11_CON13 0x8E +#define MT6311_VDVFS11_CON14 0x8F +#define MT6311_VDVFS11_CON15 0x90 +#define MT6311_VDVFS11_CON16 0x91 +#define MT6311_VDVFS11_CON17 0x92 +#define MT6311_VDVFS11_CON18 0x93 +#define MT6311_VDVFS11_CON19 0x94 + +#define MT6311_LDO_CON0 0xCC +#define MT6311_LDO_OCFB0 0xCD +#define MT6311_LDO_CON2 0xCE +#define MT6311_LDO_CON3 0xCF +#define MT6311_LDO_CON4 0xD0 +#define MT6311_FQMTR_CON0 0xD1 +#define MT6311_FQMTR_CON1 0xD2 +#define MT6311_FQMTR_CON2 0xD3 +#define MT6311_FQMTR_CON3 0xD4 +#define MT6311_FQMTR_CON4 0xD5 + +#define MT6311_PMIC_RG_INT_POL_MASK 0x1 +#define MT6311_PMIC_RG_INT_EN_MASK 0x2 +#define MT6311_PMIC_RG_BUCK_OC_INT_STATUS_MASK 0x10 + +#define MT6311_PMIC_VDVFS11_EN_CTRL_MASK 0x1 +#define MT6311_PMIC_VDVFS11_VOSEL_CTRL_MASK 0x2 +#define MT6311_PMIC_VDVFS11_EN_SEL_MASK 0x3 +#define MT6311_PMIC_VDVFS11_VOSEL_SEL_MASK 0xc +#define MT6311_PMIC_VDVFS11_EN_MASK 0x1 +#define MT6311_PMIC_VDVFS11_VOSEL_MASK 0x7F +#define MT6311_PMIC_VDVFS11_VOSEL_ON_MASK 0x7F +#define MT6311_PMIC_VDVFS11_VOSEL_SLEEP_MASK 0x7F +#define MT6311_PMIC_NI_VDVFS11_VOSEL_MASK 0x7F + +#define MT6311_PMIC_RG_VBIASN_EN_MASK 0x1 + +#endif diff --git a/include/linux/regulator/mt6311.h b/include/linux/regulator/mt6311.h new file mode 100644 index 000000000000..8473259395b6 --- /dev/null +++ b/include/linux/regulator/mt6311.h @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2015 MediaTek Inc. + * Author: Henry Chen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __LINUX_REGULATOR_MT6311_H +#define __LINUX_REGULATOR_MT6311_H + +#define MT6311_MAX_REGULATORS 2 + +enum { + MT6311_ID_VDVFS = 0, + MT6311_ID_VBIASN, +}; + +#define MT6311_E1_CID_CODE 0x10 +#define MT6311_E2_CID_CODE 0x20 +#define MT6311_E3_CID_CODE 0x30 + +#endif /* __LINUX_REGULATOR_MT6311_H */ From 3a003baeec246f604ed1d2e0087560d7f15edcc6 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 17 Jul 2015 14:41:54 -0700 Subject: [PATCH 41/70] regulator: Add over current protection (OCP) support Some regulators can automatically shut down when they detect an over current event. Add an op (set_over_current_protection) and a DT property + constraint to support this capability. Signed-off-by: Stephen Boyd Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/regulator.txt | 1 + drivers/regulator/core.c | 9 +++++++++ drivers/regulator/of_regulator.c | 3 +++ include/linux/regulator/driver.h | 1 + include/linux/regulator/machine.h | 1 + 5 files changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt index db88feb28c03..24bd422cecd5 100644 --- a/Documentation/devicetree/bindings/regulator/regulator.txt +++ b/Documentation/devicetree/bindings/regulator/regulator.txt @@ -42,6 +42,7 @@ Optional properties: - regulator-system-load: Load in uA present on regulator that is not captured by any consumer request. - regulator-pull-down: Enable pull down resistor when the regulator is disabled. +- regulator-over-current-protection: Enable over current protection. Deprecated properties: - regulator-compatible: If a regulator chip contains multiple diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index c9f72019bd68..520413e2bca0 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1081,6 +1081,15 @@ static int set_machine_constraints(struct regulator_dev *rdev, } } + if (rdev->constraints->over_current_protection + && ops->set_over_current_protection) { + ret = ops->set_over_current_protection(rdev); + if (ret < 0) { + rdev_err(rdev, "failed to set over current protection\n"); + goto out; + } + } + print_constraints(rdev); return 0; out: diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index b1c485b24ab2..250700c853bf 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -107,6 +107,9 @@ static void of_get_regulation_constraints(struct device_node *np, if (!of_property_read_u32(np, "regulator-system-load", &pval)) constraints->system_load = pval; + constraints->over_current_protection = of_property_read_bool(np, + "regulator-over-current-protection"); + for (i = 0; i < ARRAY_SIZE(regulator_states); i++) { switch (i) { case PM_SUSPEND_MEM: diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 4db9fbe4889d..45932228cbf5 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -148,6 +148,7 @@ struct regulator_ops { int (*get_current_limit) (struct regulator_dev *); int (*set_input_current_limit) (struct regulator_dev *, int lim_uA); + int (*set_over_current_protection) (struct regulator_dev *); /* enable/disable regulator */ int (*enable) (struct regulator_dev *); diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h index b11be1260129..a1067d0b3991 100644 --- a/include/linux/regulator/machine.h +++ b/include/linux/regulator/machine.h @@ -147,6 +147,7 @@ struct regulation_constraints { unsigned ramp_disable:1; /* disable ramp delay */ unsigned soft_start:1; /* ramp voltage slowly */ unsigned pull_down:1; /* pull down resistor when regulator off */ + unsigned over_current_protection:1; /* auto disable on over current */ }; /** From e2adfacde619d8e39dc8c02919bd2524d3c39588 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 17 Jul 2015 14:41:55 -0700 Subject: [PATCH 42/70] regulator: qcom-spmi: Add vendor specific configuration Add support for over current protection (OCP), pin control selection, soft start strength, and auto-mode. Cc: Signed-off-by: Stephen Boyd Signed-off-by: Mark Brown --- .../regulator/qcom,spmi-regulator.txt | 60 +++++- drivers/regulator/qcom_spmi-regulator.c | 200 +++++++++++++++++- 2 files changed, 251 insertions(+), 9 deletions(-) diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt index 75b4604bad07..d00bfd8624a5 100644 --- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt @@ -91,13 +91,65 @@ see regulator.txt - with additional custom properties described below: - regulator-initial-mode: Usage: optional Value type: - Descrption: 1 = Set initial mode to high power mode (HPM), also referred - to as NPM. HPM consumes more ground current than LPM, but + Description: 2 = Set initial mode to auto mode (automatically select + between HPM and LPM); not available on boost type + regulators. + + 1 = Set initial mode to high power mode (HPM), also referred + to as NPM. HPM consumes more ground current than LPM, but it can source significantly higher load current. HPM is not available on boost type regulators. For voltage switch type regulators, HPM implies that over current protection and - soft start are active all the time. 0 = Set initial mode to - low power mode (LPM). + soft start are active all the time. + + 0 = Set initial mode to low power mode (LPM). + +- qcom,ocp-max-retries: + Usage: optional + Value type: + Description: Maximum number of times to try toggling a voltage switch + off and back on as a result of consecutive over current + events. + +- qcom,ocp-retry-delay: + Usage: optional + Value type: + Description: Time to delay in milliseconds between each voltage switch + toggle after an over current event takes place. + +- qcom,pin-ctrl-enable: + Usage: optional + Value type: + Description: Bit mask specifying which hardware pins should be used to + enable the regulator, if any; supported bits are: + 0 = ignore all hardware enable signals + BIT(0) = follow HW0_EN signal + BIT(1) = follow HW1_EN signal + BIT(2) = follow HW2_EN signal + BIT(3) = follow HW3_EN signal + +- qcom,pin-ctrl-hpm: + Usage: optional + Value type: + Description: Bit mask specifying which hardware pins should be used to + force the regulator into high power mode, if any; + supported bits are: + 0 = ignore all hardware enable signals + BIT(0) = follow HW0_EN signal + BIT(1) = follow HW1_EN signal + BIT(2) = follow HW2_EN signal + BIT(3) = follow HW3_EN signal + BIT(4) = follow PMIC awake state + +- qcom,vs-soft-start-strength: + Usage: optional + Value type: + Description: This property sets the soft start strength for voltage + switch type regulators; supported values are: + 0 = 0.05 uA + 1 = 0.25 uA + 2 = 0.55 uA + 3 = 0.75 uA Example: diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c index 9ef0e2f28ec4..88a5dc88badc 100644 --- a/drivers/regulator/qcom_spmi-regulator.c +++ b/drivers/regulator/qcom_spmi-regulator.c @@ -26,6 +26,70 @@ #include #include +/* Pin control enable input pins. */ +#define SPMI_REGULATOR_PIN_CTRL_ENABLE_NONE 0x00 +#define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN0 0x01 +#define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN1 0x02 +#define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN2 0x04 +#define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN3 0x08 +#define SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT 0x10 + +/* Pin control high power mode input pins. */ +#define SPMI_REGULATOR_PIN_CTRL_HPM_NONE 0x00 +#define SPMI_REGULATOR_PIN_CTRL_HPM_EN0 0x01 +#define SPMI_REGULATOR_PIN_CTRL_HPM_EN1 0x02 +#define SPMI_REGULATOR_PIN_CTRL_HPM_EN2 0x04 +#define SPMI_REGULATOR_PIN_CTRL_HPM_EN3 0x08 +#define SPMI_REGULATOR_PIN_CTRL_HPM_SLEEP_B 0x10 +#define SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT 0x20 + +/* + * Used with enable parameters to specify that hardware default register values + * should be left unaltered. + */ +#define SPMI_REGULATOR_USE_HW_DEFAULT 2 + +/* Soft start strength of a voltage switch type regulator */ +enum spmi_vs_soft_start_str { + SPMI_VS_SOFT_START_STR_0P05_UA = 0, + SPMI_VS_SOFT_START_STR_0P25_UA, + SPMI_VS_SOFT_START_STR_0P55_UA, + SPMI_VS_SOFT_START_STR_0P75_UA, + SPMI_VS_SOFT_START_STR_HW_DEFAULT, +}; + +/** + * struct spmi_regulator_init_data - spmi-regulator initialization data + * @pin_ctrl_enable: Bit mask specifying which hardware pins should be + * used to enable the regulator, if any + * Value should be an ORing of + * SPMI_REGULATOR_PIN_CTRL_ENABLE_* constants. If + * the bit specified by + * SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT is + * set, then pin control enable hardware registers + * will not be modified. + * @pin_ctrl_hpm: Bit mask specifying which hardware pins should be + * used to force the regulator into high power + * mode, if any + * Value should be an ORing of + * SPMI_REGULATOR_PIN_CTRL_HPM_* constants. If + * the bit specified by + * SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT is + * set, then pin control mode hardware registers + * will not be modified. + * @vs_soft_start_strength: This parameter sets the soft start strength for + * voltage switch type regulators. Its value + * should be one of SPMI_VS_SOFT_START_STR_*. If + * its value is SPMI_VS_SOFT_START_STR_HW_DEFAULT, + * then the soft start strength will be left at its + * default hardware value. + */ +struct spmi_regulator_init_data { + unsigned pin_ctrl_enable; + unsigned pin_ctrl_hpm; + enum spmi_vs_soft_start_str vs_soft_start_strength; +}; + /* These types correspond to unique register layouts. */ enum spmi_regulator_logical_type { SPMI_REGULATOR_LOGICAL_TYPE_SMPS, @@ -458,6 +522,14 @@ static int spmi_regulator_vs_enable(struct regulator_dev *rdev) return spmi_regulator_common_enable(rdev); } +static int spmi_regulator_vs_ocp(struct regulator_dev *rdev) +{ + struct spmi_regulator *vreg = rdev_get_drvdata(rdev); + u8 reg = SPMI_VS_OCP_OVERRIDE; + + return spmi_vreg_write(vreg, SPMI_VS_REG_OCP, ®, 1); +} + static int spmi_regulator_common_disable(struct regulator_dev *rdev) { struct spmi_regulator *vreg = rdev_get_drvdata(rdev); @@ -791,6 +863,9 @@ static unsigned int spmi_regulator_common_get_mode(struct regulator_dev *rdev) if (reg & SPMI_COMMON_MODE_HPM_MASK) return REGULATOR_MODE_NORMAL; + if (reg & SPMI_COMMON_MODE_AUTO_MASK) + return REGULATOR_MODE_FAST; + return REGULATOR_MODE_IDLE; } @@ -798,11 +873,13 @@ static int spmi_regulator_common_set_mode(struct regulator_dev *rdev, unsigned int mode) { struct spmi_regulator *vreg = rdev_get_drvdata(rdev); - u8 mask = SPMI_COMMON_MODE_HPM_MASK; + u8 mask = SPMI_COMMON_MODE_HPM_MASK | SPMI_COMMON_MODE_AUTO_MASK; u8 val = 0; if (mode == REGULATOR_MODE_NORMAL) - val = mask; + val = SPMI_COMMON_MODE_HPM_MASK; + else if (mode == REGULATOR_MODE_FAST) + val = SPMI_COMMON_MODE_AUTO_MASK; return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask); } @@ -972,6 +1049,7 @@ static struct regulator_ops spmi_vs_ops = { .is_enabled = spmi_regulator_common_is_enabled, .set_pull_down = spmi_regulator_common_set_pull_down, .set_soft_start = spmi_regulator_common_set_soft_start, + .set_over_current_protection = spmi_regulator_vs_ocp, }; static struct regulator_ops spmi_boost_ops = { @@ -1202,10 +1280,111 @@ static int spmi_regulator_ftsmps_init_slew_rate(struct spmi_regulator *vreg) return ret; } +static int spmi_regulator_init_registers(struct spmi_regulator *vreg, + const struct spmi_regulator_init_data *data) +{ + int ret; + enum spmi_regulator_logical_type type; + u8 ctrl_reg[8], reg, mask; + + type = vreg->logical_type; + + ret = spmi_vreg_read(vreg, SPMI_COMMON_REG_VOLTAGE_RANGE, ctrl_reg, 8); + if (ret) + return ret; + + /* Set up enable pin control. */ + if ((type == SPMI_REGULATOR_LOGICAL_TYPE_SMPS + || type == SPMI_REGULATOR_LOGICAL_TYPE_LDO + || type == SPMI_REGULATOR_LOGICAL_TYPE_VS) + && !(data->pin_ctrl_enable + & SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT)) { + ctrl_reg[SPMI_COMMON_IDX_ENABLE] &= + ~SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK; + ctrl_reg[SPMI_COMMON_IDX_ENABLE] |= + data->pin_ctrl_enable & SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK; + } + + /* Set up mode pin control. */ + if ((type == SPMI_REGULATOR_LOGICAL_TYPE_SMPS + || type == SPMI_REGULATOR_LOGICAL_TYPE_LDO) + && !(data->pin_ctrl_hpm + & SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT)) { + ctrl_reg[SPMI_COMMON_IDX_MODE] &= + ~SPMI_COMMON_MODE_FOLLOW_ALL_MASK; + ctrl_reg[SPMI_COMMON_IDX_MODE] |= + data->pin_ctrl_hpm & SPMI_COMMON_MODE_FOLLOW_ALL_MASK; + } + + if (type == SPMI_REGULATOR_LOGICAL_TYPE_VS + && !(data->pin_ctrl_hpm & SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT)) { + ctrl_reg[SPMI_COMMON_IDX_MODE] &= + ~SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; + ctrl_reg[SPMI_COMMON_IDX_MODE] |= + data->pin_ctrl_hpm & SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; + } + + if ((type == SPMI_REGULATOR_LOGICAL_TYPE_ULT_LO_SMPS + || type == SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS + || type == SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO) + && !(data->pin_ctrl_hpm + & SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT)) { + ctrl_reg[SPMI_COMMON_IDX_MODE] &= + ~SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; + ctrl_reg[SPMI_COMMON_IDX_MODE] |= + data->pin_ctrl_hpm & SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; + } + + /* Write back any control register values that were modified. */ + ret = spmi_vreg_write(vreg, SPMI_COMMON_REG_VOLTAGE_RANGE, ctrl_reg, 8); + if (ret) + return ret; + + /* Set soft start strength and over current protection for VS. */ + if (type == SPMI_REGULATOR_LOGICAL_TYPE_VS) { + if (data->vs_soft_start_strength + != SPMI_VS_SOFT_START_STR_HW_DEFAULT) { + reg = data->vs_soft_start_strength + & SPMI_VS_SOFT_START_SEL_MASK; + mask = SPMI_VS_SOFT_START_SEL_MASK; + return spmi_vreg_update_bits(vreg, + SPMI_VS_REG_SOFT_START, + reg, mask); + } + } + + return 0; +} + +static void spmi_regulator_get_dt_config(struct spmi_regulator *vreg, + struct device_node *node, struct spmi_regulator_init_data *data) +{ + /* + * Initialize configuration parameters to use hardware default in case + * no value is specified via device tree. + */ + data->pin_ctrl_enable = SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT; + data->pin_ctrl_hpm = SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT; + data->vs_soft_start_strength = SPMI_VS_SOFT_START_STR_HW_DEFAULT; + + /* These bindings are optional, so it is okay if they aren't found. */ + of_property_read_u32(node, "qcom,ocp-max-retries", + &vreg->ocp_max_retries); + of_property_read_u32(node, "qcom,ocp-retry-delay", + &vreg->ocp_retry_delay_ms); + of_property_read_u32(node, "qcom,pin-ctrl-enable", + &data->pin_ctrl_enable); + of_property_read_u32(node, "qcom,pin-ctrl-hpm", &data->pin_ctrl_hpm); + of_property_read_u32(node, "qcom,vs-soft-start-strength", + &data->vs_soft_start_strength); +} + static unsigned int spmi_regulator_of_map_mode(unsigned int mode) { - if (mode) + if (mode == 1) return REGULATOR_MODE_NORMAL; + if (mode == 2) + return REGULATOR_MODE_FAST; return REGULATOR_MODE_IDLE; } @@ -1214,12 +1393,23 @@ static int spmi_regulator_of_parse(struct device_node *node, const struct regulator_desc *desc, struct regulator_config *config) { + struct spmi_regulator_init_data data = { }; struct spmi_regulator *vreg = config->driver_data; struct device *dev = config->dev; int ret; - vreg->ocp_max_retries = SPMI_VS_OCP_DEFAULT_MAX_RETRIES; - vreg->ocp_retry_delay_ms = SPMI_VS_OCP_DEFAULT_RETRY_DELAY_MS; + spmi_regulator_get_dt_config(vreg, node, &data); + + if (!vreg->ocp_max_retries) + vreg->ocp_max_retries = SPMI_VS_OCP_DEFAULT_MAX_RETRIES; + if (!vreg->ocp_retry_delay_ms) + vreg->ocp_retry_delay_ms = SPMI_VS_OCP_DEFAULT_RETRY_DELAY_MS; + + ret = spmi_regulator_init_registers(vreg, &data); + if (ret) { + dev_err(dev, "common initialization failed, ret=%d\n", ret); + return ret; + } if (vreg->logical_type == SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS) { ret = spmi_regulator_ftsmps_init_slew_rate(vreg); From b10c7f3cc948107fb992d3a14eeaa0fdfb5c95da Mon Sep 17 00:00:00 2001 From: Mikko Perttunen Date: Tue, 28 Jul 2015 11:34:11 +0300 Subject: [PATCH 43/70] regulator: max8973: Set VSEL regmap ops if DVS GPIO is not set Use regmap helpers for get_voltage_sel and set_voltage_sel ops if the DVS GPIO is not set. The DVS GPIO allows on the fly selection of the VSEL register from two choices. However, if it is not set, the VSEL register will stay fixed and we can use the regmap ops. This allows use of the *hardware_vsel* regulator APIs. Signed-off-by: Mikko Perttunen Signed-off-by: Mark Brown --- drivers/regulator/max8973-regulator.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c index f67365962b67..8857cc02d9a8 100644 --- a/drivers/regulator/max8973-regulator.c +++ b/drivers/regulator/max8973-regulator.c @@ -637,6 +637,15 @@ static int max8973_probe(struct i2c_client *client, max->lru_index[i] = i; max->lru_index[0] = max->curr_vout_reg; max->lru_index[max->curr_vout_reg] = 0; + } else { + /* + * If there is no DVS GPIO, the VOUT register + * address is fixed. + */ + max->ops.set_voltage_sel = regulator_set_voltage_sel_regmap; + max->ops.get_voltage_sel = regulator_get_voltage_sel_regmap; + max->desc.vsel_reg = max->curr_vout_reg; + max->desc.vsel_mask = MAX8973_VOUT_MASK; } if (pdata_from_dt) From e80c47bd738badeaa70b1114d4cd75f892672bd3 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Thu, 30 Jul 2015 18:18:40 +0200 Subject: [PATCH 44/70] regulator: fan53555: Export I2C module alias information The I2C core always reports the MODALIAS uevent as "i2c: Signed-off-by: Mark Brown --- drivers/regulator/fan53555.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 42865681c00b..4940e8287df6 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -439,6 +439,7 @@ static const struct i2c_device_id fan53555_id[] = { }, { }, }; +MODULE_DEVICE_TABLE(i2c, fan53555_id); static struct i2c_driver fan53555_regulator_driver = { .driver = { From 53e381627d34c4c7a3ea00c041c38f447828f755 Mon Sep 17 00:00:00 2001 From: Henry Chen Date: Mon, 3 Aug 2015 22:15:51 +0800 Subject: [PATCH 45/70] regulator: mt6311: Modify the maximum voltage of buck. The maximum voltage of buck should be 1.39375V. 1.39375V = 0.6V + 0.00625V * 127, 127 is the max_sel of linear range. Reported-by: Axel Lin signed-off-by: Henry Chen Signed-off-by: Mark Brown --- drivers/regulator/mt6311-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/mt6311-regulator.c b/drivers/regulator/mt6311-regulator.c index 096e6202be1c..b140da04a657 100644 --- a/drivers/regulator/mt6311-regulator.c +++ b/drivers/regulator/mt6311-regulator.c @@ -34,7 +34,7 @@ static const struct regmap_config mt6311_regmap_config = { /* Default limits measured in millivolts and milliamps */ #define MT6311_MIN_UV 600000 -#define MT6311_MAX_UV 1400000 +#define MT6311_MAX_UV 1393750 #define MT6311_STEP_UV 6250 static const struct regulator_linear_range buck_volt_range[] = { From 08b472f7b602c60c69f278ba1e15535f5c86ee24 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 30 Jul 2015 21:06:43 +0800 Subject: [PATCH 46/70] regulator: mt6311: Trivial clean up Make mt6311_buck_ops, mt6311_ldo_ops and mt6311_regulators const and remove unneeded error variable in mt6311_i2c_probe(). Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/mt6311-regulator.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/regulator/mt6311-regulator.c b/drivers/regulator/mt6311-regulator.c index b140da04a657..2c2c85bf08c5 100644 --- a/drivers/regulator/mt6311-regulator.c +++ b/drivers/regulator/mt6311-regulator.c @@ -41,7 +41,7 @@ static const struct regulator_linear_range buck_volt_range[] = { REGULATOR_LINEAR_RANGE(MT6311_MIN_UV, 0, 0x7f, MT6311_STEP_UV), }; -static struct regulator_ops mt6311_buck_ops = { +static const struct regulator_ops mt6311_buck_ops = { .list_voltage = regulator_list_voltage_linear_range, .map_voltage = regulator_map_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, @@ -52,7 +52,7 @@ static struct regulator_ops mt6311_buck_ops = { .is_enabled = regulator_is_enabled_regmap, }; -static struct regulator_ops mt6311_ldo_ops = { +static const struct regulator_ops mt6311_ldo_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, @@ -91,7 +91,7 @@ static struct regulator_ops mt6311_ldo_ops = { .enable_mask = MT6311_PMIC_RG_VBIASN_EN_MASK,\ } -static struct regulator_desc mt6311_regulators[] = { +static const struct regulator_desc mt6311_regulators[] = { MT6311_BUCK(VDVFS), MT6311_LDO(VBIASN), }; @@ -105,15 +105,15 @@ static int mt6311_i2c_probe(struct i2c_client *i2c, struct regulator_config config = { }; struct regulator_dev *rdev; struct regmap *regmap; - int error, i, ret; + int i, ret; unsigned int data; regmap = devm_regmap_init_i2c(i2c, &mt6311_regmap_config); if (IS_ERR(regmap)) { - error = PTR_ERR(regmap); + ret = PTR_ERR(regmap); dev_err(&i2c->dev, "Failed to allocate register map: %d\n", - error); - return error; + ret); + return ret; } ret = regmap_read(regmap, MT6311_SWCID, &data); From d4ea7d86457a8d0ea40ce77bdeda1fc966cc35ec Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Sat, 1 Aug 2015 18:13:25 +0100 Subject: [PATCH 47/70] regulator: axp20x: Add module alias This allows the module to be autoloaded. Together with 07949bf9c63c ("cpufreq: dt: allow driver to boot automatically") this is sufficient to allow a modular kernel (such as Debian's) to enable cpufreq on a Cubietruck. Signed-off-by: Ian Campbell Signed-off-by: Mark Brown --- drivers/regulator/axp20x-regulator.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index 646829132b59..01bf3476a791 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -405,3 +405,4 @@ module_platform_driver(axp20x_regulator_driver); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Carlo Caione "); MODULE_DESCRIPTION("Regulator Driver for AXP20X PMIC"); +MODULE_ALIAS("platform:axp20x-regulator"); From 7cd71c3ba166913a0afb8ac0d6bd5d2730fea6df Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 7 Aug 2015 13:00:35 +0100 Subject: [PATCH 48/70] regulator: core: Drop regulator_list_mutex when we're done with it on remove When removing a regulator we hold regulator_list_mutex in order to ensure the regualtor doesn't become removed again. However we only need to protect the list until we remove the regulator from the list so move the unlock earlier to reduce the locked region. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 68b616580533..62e4f3bd5783 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3827,11 +3827,11 @@ void regulator_unregister(struct regulator_dev *rdev) WARN_ON(rdev->open_count); unset_regulator_supplies(rdev); list_del(&rdev->list); + mutex_unlock(®ulator_list_mutex); kfree(rdev->constraints); regulator_ena_gpio_free(rdev); of_node_put(rdev->dev.of_node); device_unregister(&rdev->dev); - mutex_unlock(®ulator_list_mutex); } EXPORT_SYMBOL_GPL(regulator_unregister); From b3d8ba746b5109dc890e7480db5d014d19ae6a05 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 30 Jul 2015 10:36:41 +0900 Subject: [PATCH 49/70] Input: max77693: Remove a read-only pwm_divisor field Storing a predefined PWM divisor in state container structure is meaningless. The field, after initialization, is only read so this only obfuscates the code. Remove the field and use directly enum value. Signed-off-by: Krzysztof Kozlowski Acked-by: Dmitry Torokhov Signed-off-by: Mark Brown --- drivers/input/misc/max77693-haptic.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 4524499ea72f..8dc43c1ebf0e 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -60,7 +60,6 @@ struct max77693_haptic { unsigned int pwm_duty; enum max77693_haptic_motor_type type; enum max77693_haptic_pulse_mode mode; - enum max77693_haptic_pwm_divisor pwm_divisor; struct work_struct work; }; @@ -88,7 +87,7 @@ static int max77693_haptic_configure(struct max77693_haptic *haptic, value = ((haptic->type << MAX77693_CONFIG2_MODE) | (enable << MAX77693_CONFIG2_MEN) | (haptic->mode << MAX77693_CONFIG2_HTYP) | - (haptic->pwm_divisor)); + MAX77693_HAPTIC_PWM_DIVISOR_128); error = regmap_write(haptic->regmap_haptic, MAX77693_HAPTIC_REG_CONFIG2, value); @@ -259,7 +258,6 @@ static int max77693_haptic_probe(struct platform_device *pdev) haptic->dev = &pdev->dev; haptic->type = MAX77693_HAPTIC_LRA; haptic->mode = MAX77693_HAPTIC_EXTERNAL_MODE; - haptic->pwm_divisor = MAX77693_HAPTIC_PWM_DIVISOR_128; haptic->suspend_state = false; INIT_WORK(&haptic->work, max77693_haptic_play_work); From 6eaa247a5bab775e45a74b52c17bf8bc37fd5f6f Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 30 Jul 2015 10:36:42 +0900 Subject: [PATCH 50/70] Input: max77693: Prepare for adding support for Maxim 77843 Prepare the driver for supporting two devices: Maxim 77693 and 77843: 1. Add table of device ids and store current device type for later usage. 2. Differentiate the haptic device configuration. Signed-off-by: Krzysztof Kozlowski Acked-by: Dmitry Torokhov Signed-off-by: Mark Brown --- drivers/input/misc/max77693-haptic.c | 41 +++++++++++++++++++++++----- 1 file changed, 34 insertions(+), 7 deletions(-) diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 8dc43c1ebf0e..4c0f67ab66d9 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -47,6 +47,8 @@ enum max77693_haptic_pwm_divisor { }; struct max77693_haptic { + enum max77693_types dev_type; + struct regmap *regmap_pmic; struct regmap *regmap_haptic; struct device *dev; @@ -81,16 +83,23 @@ static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic) static int max77693_haptic_configure(struct max77693_haptic *haptic, bool enable) { - unsigned int value; + unsigned int value, config_reg; int error; - value = ((haptic->type << MAX77693_CONFIG2_MODE) | - (enable << MAX77693_CONFIG2_MEN) | - (haptic->mode << MAX77693_CONFIG2_HTYP) | - MAX77693_HAPTIC_PWM_DIVISOR_128); + switch (haptic->dev_type) { + case TYPE_MAX77693: + value = ((haptic->type << MAX77693_CONFIG2_MODE) | + (enable << MAX77693_CONFIG2_MEN) | + (haptic->mode << MAX77693_CONFIG2_HTYP) | + MAX77693_HAPTIC_PWM_DIVISOR_128); + config_reg = MAX77693_HAPTIC_REG_CONFIG2; + break; + default: + return -EINVAL; + } error = regmap_write(haptic->regmap_haptic, - MAX77693_HAPTIC_REG_CONFIG2, value); + config_reg, value); if (error) { dev_err(haptic->dev, "failed to update haptic config: %d\n", error); @@ -254,12 +263,23 @@ static int max77693_haptic_probe(struct platform_device *pdev) return -ENOMEM; haptic->regmap_pmic = max77693->regmap; - haptic->regmap_haptic = max77693->regmap_haptic; haptic->dev = &pdev->dev; haptic->type = MAX77693_HAPTIC_LRA; haptic->mode = MAX77693_HAPTIC_EXTERNAL_MODE; haptic->suspend_state = false; + /* Variant-specific init */ + haptic->dev_type = platform_get_device_id(pdev)->driver_data; + switch (haptic->dev_type) { + case TYPE_MAX77693: + haptic->regmap_haptic = max77693->regmap_haptic; + break; + default: + dev_err(&pdev->dev, "unsupported device type: %u\n", + haptic->dev_type); + return -EINVAL; + } + INIT_WORK(&haptic->work, max77693_haptic_play_work); /* Get pwm and regulatot for haptic device */ @@ -337,12 +357,19 @@ static int __maybe_unused max77693_haptic_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops, max77693_haptic_suspend, max77693_haptic_resume); +static const struct platform_device_id max77693_haptic_id[] = { + { "max77693-haptic", TYPE_MAX77693 }, + {}, +}; +MODULE_DEVICE_TABLE(platform, max77693_haptic_id); + static struct platform_driver max77693_haptic_driver = { .driver = { .name = "max77693-haptic", .pm = &max77693_haptic_pm_ops, }, .probe = max77693_haptic_probe, + .id_table = max77693_haptic_id, }; module_platform_driver(max77693_haptic_driver); From 56bbc99e6914eb183fb083f737178a1757083d41 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 30 Jul 2015 10:36:43 +0900 Subject: [PATCH 51/70] Input: max77693: Add support for Maxim 77843 The Maxim 77843 haptic driver differs from 77693 by: 1. Setting the bias. 2. Different configuration register. 3. Not enabling the low-sys DAC. 4. Using same regmap for PMIC and haptic blocks. Incorporate all differences into max77693 haptic driver so both devices can be supported. Signed-off-by: Krzysztof Kozlowski Acked-by: Dmitry Torokhov Signed-off-by: Mark Brown --- drivers/input/misc/Kconfig | 6 ++-- drivers/input/misc/max77693-haptic.c | 48 ++++++++++++++++++++++++++-- 2 files changed, 48 insertions(+), 6 deletions(-) diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index d4f0a817e858..f5d7a98a329d 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -167,12 +167,12 @@ config INPUT_M68K_BEEP depends on M68K config INPUT_MAX77693_HAPTIC - tristate "MAXIM MAX77693 haptic controller support" - depends on MFD_MAX77693 && PWM + tristate "MAXIM MAX77693/MAX77843 haptic controller support" + depends on (MFD_MAX77693 || MFD_MAX77843) && PWM select INPUT_FF_MEMLESS help This option enables support for the haptic controller on - MAXIM MAX77693 chip. + MAXIM MAX77693 and MAX77843 chips. To compile this driver as module, choose M here: the module will be called max77693-haptic. diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c index 4c0f67ab66d9..6d96bff32a0e 100644 --- a/drivers/input/misc/max77693-haptic.c +++ b/drivers/input/misc/max77693-haptic.c @@ -1,8 +1,9 @@ /* - * MAXIM MAX77693 Haptic device driver + * MAXIM MAX77693/MAX77843 Haptic device driver * - * Copyright (C) 2014 Samsung Electronics + * Copyright (C) 2014,2015 Samsung Electronics * Jaewon Kim + * Krzysztof Kozlowski * * This program is not provided / owned by Maxim Integrated Products. * @@ -26,6 +27,7 @@ #include #include #include +#include #define MAX_MAGNITUDE_SHIFT 16 @@ -80,6 +82,26 @@ static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic) return 0; } +static int max77843_haptic_bias(struct max77693_haptic *haptic, bool on) +{ + int error; + + if (haptic->dev_type != TYPE_MAX77843) + return 0; + + error = regmap_update_bits(haptic->regmap_haptic, + MAX77843_SYS_REG_MAINCTRL1, + MAX77843_MAINCTRL1_BIASEN_MASK, + on << MAINCTRL1_BIASEN_SHIFT); + if (error) { + dev_err(haptic->dev, "failed to %s bias: %d\n", + on ? "enable" : "disable", error); + return error; + } + + return 0; +} + static int max77693_haptic_configure(struct max77693_haptic *haptic, bool enable) { @@ -94,6 +116,12 @@ static int max77693_haptic_configure(struct max77693_haptic *haptic, MAX77693_HAPTIC_PWM_DIVISOR_128); config_reg = MAX77693_HAPTIC_REG_CONFIG2; break; + case TYPE_MAX77843: + value = (haptic->type << MCONFIG_MODE_SHIFT) | + (enable << MCONFIG_MEN_SHIFT) | + MAX77693_HAPTIC_PWM_DIVISOR_128; + config_reg = MAX77843_HAP_REG_MCONFIG; + break; default: return -EINVAL; } @@ -113,6 +141,9 @@ static int max77693_haptic_lowsys(struct max77693_haptic *haptic, bool enable) { int error; + if (haptic->dev_type != TYPE_MAX77693) + return 0; + error = regmap_update_bits(haptic->regmap_pmic, MAX77693_PMIC_REG_LSCNFG, MAX77693_PMIC_LOW_SYS_MASK, @@ -228,6 +259,10 @@ static int max77693_haptic_open(struct input_dev *dev) struct max77693_haptic *haptic = input_get_drvdata(dev); int error; + error = max77843_haptic_bias(haptic, true); + if (error) + return error; + error = regulator_enable(haptic->motor_reg); if (error) { dev_err(haptic->dev, @@ -250,6 +285,8 @@ static void max77693_haptic_close(struct input_dev *dev) if (error) dev_err(haptic->dev, "failed to disable regulator: %d\n", error); + + max77843_haptic_bias(haptic, false); } static int max77693_haptic_probe(struct platform_device *pdev) @@ -274,6 +311,9 @@ static int max77693_haptic_probe(struct platform_device *pdev) case TYPE_MAX77693: haptic->regmap_haptic = max77693->regmap_haptic; break; + case TYPE_MAX77843: + haptic->regmap_haptic = max77693->regmap; + break; default: dev_err(&pdev->dev, "unsupported device type: %u\n", haptic->dev_type); @@ -359,6 +399,7 @@ static SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops, static const struct platform_device_id max77693_haptic_id[] = { { "max77693-haptic", TYPE_MAX77693 }, + { "max77843-haptic", TYPE_MAX77843 }, {}, }; MODULE_DEVICE_TABLE(platform, max77693_haptic_id); @@ -374,6 +415,7 @@ static struct platform_driver max77693_haptic_driver = { module_platform_driver(max77693_haptic_driver); MODULE_AUTHOR("Jaewon Kim "); -MODULE_DESCRIPTION("MAXIM MAX77693 Haptic driver"); +MODULE_AUTHOR("Krzysztof Kozlowski "); +MODULE_DESCRIPTION("MAXIM 77693/77843 Haptic driver"); MODULE_ALIAS("platform:max77693-haptic"); MODULE_LICENSE("GPL"); From 38a986c0750db23aeb5968f8b6d37298b9be4b11 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Thu, 30 Jul 2015 10:36:44 +0900 Subject: [PATCH 52/70] Input: Remove the max77843 haptic driver The max77693 haptic driver supports Maxim 77843 device so remove the max77843 driver. Signed-off-by: Krzysztof Kozlowski Acked-by: Dmitry Torokhov Signed-off-by: Mark Brown --- drivers/input/misc/Kconfig | 12 - drivers/input/misc/Makefile | 1 - drivers/input/misc/max77843-haptic.c | 359 --------------------------- 3 files changed, 372 deletions(-) delete mode 100644 drivers/input/misc/max77843-haptic.c diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index f5d7a98a329d..c41dec819cdf 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -177,18 +177,6 @@ config INPUT_MAX77693_HAPTIC To compile this driver as module, choose M here: the module will be called max77693-haptic. -config INPUT_MAX77843_HAPTIC - tristate "MAXIM MAX77843 haptic controller support" - depends on MFD_MAX77843 && REGULATOR - select INPUT_FF_MEMLESS - help - This option enables support for the haptic controller on - MAXIM MAX77843 chip. The driver supports ff-memless interface - from input framework. - - To compile this driver as module, choose M here: the - module will be called max77843-haptic. - config INPUT_MAX8925_ONKEY tristate "MAX8925 ONKEY support" depends on MFD_MAX8925 diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index 53df07dcc23c..0357a088c6a9 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -41,7 +41,6 @@ obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o obj-$(CONFIG_INPUT_MAX77693_HAPTIC) += max77693-haptic.o -obj-$(CONFIG_INPUT_MAX77843_HAPTIC) += max77843-haptic.o obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o obj-$(CONFIG_INPUT_MAX8997_HAPTIC) += max8997_haptic.o obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o diff --git a/drivers/input/misc/max77843-haptic.c b/drivers/input/misc/max77843-haptic.c deleted file mode 100644 index 30da81ab5a21..000000000000 --- a/drivers/input/misc/max77843-haptic.c +++ /dev/null @@ -1,359 +0,0 @@ -/* - * MAXIM MAX77693 Haptic device driver - * - * Copyright (C) 2015 Samsung Electronics - * Author: Jaewon Kim - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define MAX_MAGNITUDE_SHIFT 16 - -enum max77843_haptic_motor_type { - MAX77843_HAPTIC_ERM = 0, - MAX77843_HAPTIC_LRA, -}; - -enum max77843_haptic_pwm_divisor { - MAX77843_HAPTIC_PWM_DIVISOR_32 = 0, - MAX77843_HAPTIC_PWM_DIVISOR_64, - MAX77843_HAPTIC_PWM_DIVISOR_128, - MAX77843_HAPTIC_PWM_DIVISOR_256, -}; - -struct max77843_haptic { - struct regmap *regmap_haptic; - struct device *dev; - struct input_dev *input_dev; - struct pwm_device *pwm_dev; - struct regulator *motor_reg; - struct work_struct work; - struct mutex mutex; - - unsigned int magnitude; - unsigned int pwm_duty; - - bool active; - bool suspended; - - enum max77843_haptic_motor_type type; - enum max77843_haptic_pwm_divisor pwm_divisor; -}; - -static int max77843_haptic_set_duty_cycle(struct max77843_haptic *haptic) -{ - int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2; - int error; - - error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period); - if (error) { - dev_err(haptic->dev, "failed to configure pwm: %d\n", error); - return error; - } - - return 0; -} - -static int max77843_haptic_bias(struct max77843_haptic *haptic, bool on) -{ - int error; - - error = regmap_update_bits(haptic->regmap_haptic, - MAX77843_SYS_REG_MAINCTRL1, - MAX77843_MAINCTRL1_BIASEN_MASK, - on << MAINCTRL1_BIASEN_SHIFT); - if (error) { - dev_err(haptic->dev, "failed to %s bias: %d\n", - on ? "enable" : "disable", error); - return error; - } - - return 0; -} - -static int max77843_haptic_config(struct max77843_haptic *haptic, bool enable) -{ - unsigned int value; - int error; - - value = (haptic->type << MCONFIG_MODE_SHIFT) | - (enable << MCONFIG_MEN_SHIFT) | - (haptic->pwm_divisor << MCONFIG_PDIV_SHIFT); - - error = regmap_write(haptic->regmap_haptic, - MAX77843_HAP_REG_MCONFIG, value); - if (error) { - dev_err(haptic->dev, - "failed to update haptic config: %d\n", error); - return error; - } - - return 0; -} - -static int max77843_haptic_enable(struct max77843_haptic *haptic) -{ - int error; - - if (haptic->active) - return 0; - - error = pwm_enable(haptic->pwm_dev); - if (error) { - dev_err(haptic->dev, - "failed to enable pwm device: %d\n", error); - return error; - } - - error = max77843_haptic_config(haptic, true); - if (error) - goto err_config; - - haptic->active = true; - - return 0; - -err_config: - pwm_disable(haptic->pwm_dev); - - return error; -} - -static int max77843_haptic_disable(struct max77843_haptic *haptic) -{ - int error; - - if (!haptic->active) - return 0; - - error = max77843_haptic_config(haptic, false); - if (error) - return error; - - pwm_disable(haptic->pwm_dev); - - haptic->active = false; - - return 0; -} - -static void max77843_haptic_play_work(struct work_struct *work) -{ - struct max77843_haptic *haptic = - container_of(work, struct max77843_haptic, work); - int error; - - mutex_lock(&haptic->mutex); - - if (haptic->suspended) - goto out_unlock; - - if (haptic->magnitude) { - error = max77843_haptic_set_duty_cycle(haptic); - if (error) { - dev_err(haptic->dev, - "failed to set duty cycle: %d\n", error); - goto out_unlock; - } - - error = max77843_haptic_enable(haptic); - if (error) - dev_err(haptic->dev, - "cannot enable haptic: %d\n", error); - } else { - error = max77843_haptic_disable(haptic); - if (error) - dev_err(haptic->dev, - "cannot disable haptic: %d\n", error); - } - -out_unlock: - mutex_unlock(&haptic->mutex); -} - -static int max77843_haptic_play_effect(struct input_dev *dev, void *data, - struct ff_effect *effect) -{ - struct max77843_haptic *haptic = input_get_drvdata(dev); - u64 period_mag_multi; - - haptic->magnitude = effect->u.rumble.strong_magnitude; - if (!haptic->magnitude) - haptic->magnitude = effect->u.rumble.weak_magnitude; - - period_mag_multi = (u64)haptic->pwm_dev->period * haptic->magnitude; - haptic->pwm_duty = (unsigned int)(period_mag_multi >> - MAX_MAGNITUDE_SHIFT); - - schedule_work(&haptic->work); - - return 0; -} - -static int max77843_haptic_open(struct input_dev *dev) -{ - struct max77843_haptic *haptic = input_get_drvdata(dev); - int error; - - error = max77843_haptic_bias(haptic, true); - if (error) - return error; - - error = regulator_enable(haptic->motor_reg); - if (error) { - dev_err(haptic->dev, - "failed to enable regulator: %d\n", error); - return error; - } - - return 0; -} - -static void max77843_haptic_close(struct input_dev *dev) -{ - struct max77843_haptic *haptic = input_get_drvdata(dev); - int error; - - cancel_work_sync(&haptic->work); - max77843_haptic_disable(haptic); - - error = regulator_disable(haptic->motor_reg); - if (error) - dev_err(haptic->dev, - "failed to disable regulator: %d\n", error); - - max77843_haptic_bias(haptic, false); -} - -static int max77843_haptic_probe(struct platform_device *pdev) -{ - struct max77693_dev *max77843 = dev_get_drvdata(pdev->dev.parent); - struct max77843_haptic *haptic; - int error; - - haptic = devm_kzalloc(&pdev->dev, sizeof(*haptic), GFP_KERNEL); - if (!haptic) - return -ENOMEM; - - haptic->regmap_haptic = max77843->regmap; - haptic->dev = &pdev->dev; - haptic->type = MAX77843_HAPTIC_LRA; - haptic->pwm_divisor = MAX77843_HAPTIC_PWM_DIVISOR_128; - - INIT_WORK(&haptic->work, max77843_haptic_play_work); - mutex_init(&haptic->mutex); - - haptic->pwm_dev = devm_pwm_get(&pdev->dev, NULL); - if (IS_ERR(haptic->pwm_dev)) { - dev_err(&pdev->dev, "failed to get pwm device\n"); - return PTR_ERR(haptic->pwm_dev); - } - - haptic->motor_reg = devm_regulator_get_exclusive(&pdev->dev, "haptic"); - if (IS_ERR(haptic->motor_reg)) { - dev_err(&pdev->dev, "failed to get regulator\n"); - return PTR_ERR(haptic->motor_reg); - } - - haptic->input_dev = devm_input_allocate_device(&pdev->dev); - if (!haptic->input_dev) { - dev_err(&pdev->dev, "failed to allocate input device\n"); - return -ENOMEM; - } - - haptic->input_dev->name = "max77843-haptic"; - haptic->input_dev->id.version = 1; - haptic->input_dev->dev.parent = &pdev->dev; - haptic->input_dev->open = max77843_haptic_open; - haptic->input_dev->close = max77843_haptic_close; - input_set_drvdata(haptic->input_dev, haptic); - input_set_capability(haptic->input_dev, EV_FF, FF_RUMBLE); - - error = input_ff_create_memless(haptic->input_dev, NULL, - max77843_haptic_play_effect); - if (error) { - dev_err(&pdev->dev, "failed to create force-feedback\n"); - return error; - } - - error = input_register_device(haptic->input_dev); - if (error) { - dev_err(&pdev->dev, "failed to register input device\n"); - return error; - } - - platform_set_drvdata(pdev, haptic); - - return 0; -} - -static int __maybe_unused max77843_haptic_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct max77843_haptic *haptic = platform_get_drvdata(pdev); - int error; - - error = mutex_lock_interruptible(&haptic->mutex); - if (error) - return error; - - max77843_haptic_disable(haptic); - - haptic->suspended = true; - - mutex_unlock(&haptic->mutex); - - return 0; -} - -static int __maybe_unused max77843_haptic_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct max77843_haptic *haptic = platform_get_drvdata(pdev); - unsigned int magnitude; - - mutex_lock(&haptic->mutex); - - haptic->suspended = false; - - magnitude = ACCESS_ONCE(haptic->magnitude); - if (magnitude) - max77843_haptic_enable(haptic); - - mutex_unlock(&haptic->mutex); - - return 0; -} - -static SIMPLE_DEV_PM_OPS(max77843_haptic_pm_ops, - max77843_haptic_suspend, max77843_haptic_resume); - -static struct platform_driver max77843_haptic_driver = { - .driver = { - .name = "max77843-haptic", - .pm = &max77843_haptic_pm_ops, - }, - .probe = max77843_haptic_probe, -}; -module_platform_driver(max77843_haptic_driver); - -MODULE_AUTHOR("Jaewon Kim "); -MODULE_DESCRIPTION("MAXIM MAX77843 Haptic driver"); -MODULE_LICENSE("GPL"); From 1768514eebfa888563049fa165449a1c1eba92d8 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 7 Aug 2015 21:19:26 +0100 Subject: [PATCH 53/70] regulator: core: Reduce rdev locking region when releasing regulator When we release a regulator we need to remove references to it from the rdev which means locking the rdev. Currently we also free resources associated with the regulator inside the rdev lock but there is no need to do this, we can reduce the region the lock is held by restricting it to just actions that affect the rdev. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 62e4f3bd5783..89be8e287275 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1601,14 +1601,15 @@ static void _regulator_put(struct regulator *regulator) if (regulator->dev) sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name); mutex_lock(&rdev->mutex); - kfree(regulator->supply_name); list_del(®ulator->list); - kfree(regulator); rdev->open_count--; rdev->exclusive = 0; mutex_unlock(&rdev->mutex); + kfree(regulator->supply_name); + kfree(regulator); + module_put(rdev->owner); } From 29f5f4860a8ef9407736594ec43b4fa4152ac7fa Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 7 Aug 2015 20:01:32 +0100 Subject: [PATCH 54/70] regulator: core: Move more deallocation into class unregister We really ought to be using the class dvice lifetime management features more than we are rather than open coding them so take a step towards that by moving some of the simplest deallocations to the dev_release() function. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 89be8e287275..01a0a78368b8 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -3598,6 +3598,9 @@ static const struct attribute_group *regulator_dev_groups[] = { static void regulator_dev_release(struct device *dev) { struct regulator_dev *rdev = dev_get_drvdata(dev); + + kfree(rdev->constraints); + of_node_put(rdev->dev.of_node); kfree(rdev); } @@ -3829,9 +3832,7 @@ void regulator_unregister(struct regulator_dev *rdev) unset_regulator_supplies(rdev); list_del(&rdev->list); mutex_unlock(®ulator_list_mutex); - kfree(rdev->constraints); regulator_ena_gpio_free(rdev); - of_node_put(rdev->dev.of_node); device_unregister(&rdev->dev); } EXPORT_SYMBOL_GPL(regulator_unregister); From 609ca5f3cb32c2d11fd8cabe293ff3689e7d2613 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 10 Aug 2015 19:43:47 +0100 Subject: [PATCH 55/70] regulator: core: Use class device list for regulator_list in late init The regulator_list has exactly the same contents as the list that the driver core maintains of regulator_class members so is redundant. As a first step in converting over to use the class device list convert our iteration in late_initcall() to use the class device iterator. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 106 ++++++++++++++++++++------------------- 1 file changed, 55 insertions(+), 51 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 01a0a78368b8..0c0e9ab94d4d 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -110,6 +110,11 @@ static struct regulator *create_regulator(struct regulator_dev *rdev, struct device *dev, const char *supply_name); +static struct regulator_dev *dev_to_rdev(struct device *dev) +{ + return container_of(dev, struct regulator_dev, dev); +} + static const char *rdev_get_name(struct regulator_dev *rdev) { if (rdev->constraints && rdev->constraints->name) @@ -4152,13 +4157,57 @@ static int __init regulator_init(void) /* init early to allow our consumers to complete system booting */ core_initcall(regulator_init); -static int __init regulator_init_complete(void) +static int __init regulator_late_cleanup(struct device *dev, void *data) { - struct regulator_dev *rdev; - const struct regulator_ops *ops; - struct regulation_constraints *c; + struct regulator_dev *rdev = dev_to_rdev(dev); + const struct regulator_ops *ops = rdev->desc->ops; + struct regulation_constraints *c = rdev->constraints; int enabled, ret; + if (c && c->always_on) + return 0; + + if (c && !(c->valid_ops_mask & REGULATOR_CHANGE_STATUS)) + return 0; + + mutex_lock(&rdev->mutex); + + if (rdev->use_count) + goto unlock; + + /* If we can't read the status assume it's on. */ + if (ops->is_enabled) + enabled = ops->is_enabled(rdev); + else + enabled = 1; + + if (!enabled) + goto unlock; + + if (have_full_constraints()) { + /* We log since this may kill the system if it goes + * wrong. */ + rdev_info(rdev, "disabling\n"); + ret = _regulator_do_disable(rdev); + if (ret != 0) + rdev_err(rdev, "couldn't disable: %d\n", ret); + } else { + /* The intention is that in future we will + * assume that full constraints are provided + * so warn even if we aren't going to do + * anything here. + */ + rdev_warn(rdev, "incomplete constraints, leaving on\n"); + } + +unlock: + mutex_unlock(&rdev->mutex); + + return 0; +} + +static int __init regulator_init_complete(void) +{ /* * Since DT doesn't provide an idiomatic mechanism for * enabling full constraints and since it's much more natural @@ -4168,58 +4217,13 @@ static int __init regulator_init_complete(void) if (of_have_populated_dt()) has_full_constraints = true; - mutex_lock(®ulator_list_mutex); - /* If we have a full configuration then disable any regulators * we have permission to change the status for and which are * not in use or always_on. This is effectively the default * for DT and ACPI as they have full constraints. */ - list_for_each_entry(rdev, ®ulator_list, list) { - ops = rdev->desc->ops; - c = rdev->constraints; - - if (c && c->always_on) - continue; - - if (c && !(c->valid_ops_mask & REGULATOR_CHANGE_STATUS)) - continue; - - mutex_lock(&rdev->mutex); - - if (rdev->use_count) - goto unlock; - - /* If we can't read the status assume it's on. */ - if (ops->is_enabled) - enabled = ops->is_enabled(rdev); - else - enabled = 1; - - if (!enabled) - goto unlock; - - if (have_full_constraints()) { - /* We log since this may kill the system if it - * goes wrong. */ - rdev_info(rdev, "disabling\n"); - ret = _regulator_do_disable(rdev); - if (ret != 0) - rdev_err(rdev, "couldn't disable: %d\n", ret); - } else { - /* The intention is that in future we will - * assume that full constraints are provided - * so warn even if we aren't going to do - * anything here. - */ - rdev_warn(rdev, "incomplete constraints, leaving on\n"); - } - -unlock: - mutex_unlock(&rdev->mutex); - } - - mutex_unlock(®ulator_list_mutex); + class_for_each_device(®ulator_class, NULL, NULL, + regulator_late_cleanup); return 0; } From d3fb9800146b7ad96b7604755c1a943fe1abbde2 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 13 Aug 2015 18:09:49 +0530 Subject: [PATCH 56/70] regulator: core: Spelling fix Trivial spell fix, s/succesfully/successfully. Signed-off-by: Viresh Kumar Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 62e4f3bd5783..999a94b9735e 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2723,7 +2723,7 @@ int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV) goto out; /* If we're trying to set a range that overlaps the current voltage, - * return succesfully even though the regulator does not support + * return successfully even though the regulator does not support * changing the voltage. */ if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) { From c329061be51bef655f28c9296093984c977aff85 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Mon, 27 Jul 2015 16:54:10 +0530 Subject: [PATCH 57/70] regulator: pbias: Fix broken pbias disable functionality regulator_disable of pbias always writes '0' to the enable_reg. However actual disable value of pbias regulator is not always '0'. Fix it by populating the disable_val in pbias_reg_info for the various platforms and assign it to the disable_val of pbias regulator descriptor. This will be used by regulator_disable_regmap while disabling pbias regulator. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Mark Brown Cc: --- drivers/regulator/pbias-regulator.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c index bd2b75c0d1d1..4fa7bcaf454e 100644 --- a/drivers/regulator/pbias-regulator.c +++ b/drivers/regulator/pbias-regulator.c @@ -30,6 +30,7 @@ struct pbias_reg_info { u32 enable; u32 enable_mask; + u32 disable_val; u32 vmode; unsigned int enable_time; char *name; @@ -62,6 +63,7 @@ static const struct pbias_reg_info pbias_mmc_omap2430 = { .enable = BIT(1), .enable_mask = BIT(1), .vmode = BIT(0), + .disable_val = 0, .enable_time = 100, .name = "pbias_mmc_omap2430" }; @@ -77,6 +79,7 @@ static const struct pbias_reg_info pbias_sim_omap3 = { static const struct pbias_reg_info pbias_mmc_omap4 = { .enable = BIT(26) | BIT(22), .enable_mask = BIT(26) | BIT(25) | BIT(22), + .disable_val = BIT(25), .vmode = BIT(21), .enable_time = 100, .name = "pbias_mmc_omap4" @@ -85,6 +88,7 @@ static const struct pbias_reg_info pbias_mmc_omap4 = { static const struct pbias_reg_info pbias_mmc_omap5 = { .enable = BIT(27) | BIT(26), .enable_mask = BIT(27) | BIT(25) | BIT(26), + .disable_val = BIT(25), .vmode = BIT(21), .enable_time = 100, .name = "pbias_mmc_omap5" @@ -159,6 +163,7 @@ static int pbias_regulator_probe(struct platform_device *pdev) drvdata[data_idx].desc.enable_reg = res->start; drvdata[data_idx].desc.enable_mask = info->enable_mask; drvdata[data_idx].desc.enable_val = info->enable; + drvdata[data_idx].desc.disable_val = info->disable_val; cfg.init_data = pbias_matches[idx].init_data; cfg.driver_data = &drvdata[data_idx]; From da65e367b67e15fc41cbf646c506c802dd5213b7 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Mon, 17 Aug 2015 11:43:59 -0700 Subject: [PATCH 58/70] regulator: Regulator driver for the Qualcomm RPM Driver for regulators exposed by the Resource Power Manager (RPM) found in devices based on Qualcomm 8974 and newer platforms. Signed-off-by: Bjorn Andersson Acked-by: Andy Gross Tested-by: Tim Bird Signed-off-by: Mark Brown --- drivers/regulator/Kconfig | 12 + drivers/regulator/Makefile | 1 + drivers/regulator/qcom_smd-regulator.c | 349 +++++++++++++++++++++++++ 3 files changed, 362 insertions(+) create mode 100644 drivers/regulator/qcom_smd-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index bef3bde6971b..79c3f6dc9fef 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -522,6 +522,18 @@ config REGULATOR_QCOM_RPM Qualcomm RPM as a module. The module will be named "qcom_rpm-regulator". +config REGULATOR_QCOM_SMD_RPM + tristate "Qualcomm SMD based RPM regulator driver" + depends on QCOM_SMD_RPM + help + If you say yes to this option, support will be included for the + regulators exposed by the Resource Power Manager found in Qualcomm + 8974 based devices. + + Say M here if you want to include support for the regulators on the + Qualcomm RPM as a module. The module will be named + "qcom_smd-regulator". + config REGULATOR_QCOM_SPMI tristate "Qualcomm SPMI regulator driver" depends on SPMI || COMPILE_TEST diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 91bf76267404..abf70a7171b9 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -62,6 +62,7 @@ obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o +obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c new file mode 100644 index 000000000000..9d093ae36ba7 --- /dev/null +++ b/drivers/regulator/qcom_smd-regulator.c @@ -0,0 +1,349 @@ +/* + * Copyright (c) 2015, Sony Mobile Communications AB. + * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +struct qcom_rpm_reg { + struct device *dev; + + struct qcom_smd_rpm *rpm; + + u32 type; + u32 id; + + struct regulator_desc desc; + + int is_enabled; + int uV; +}; + +struct rpm_regulator_req { + u32 key; + u32 nbytes; + u32 value; +}; + +#define RPM_KEY_SWEN 0x6e657773 /* "swen" */ +#define RPM_KEY_UV 0x00007675 /* "uv" */ +#define RPM_KEY_MA 0x0000616d /* "ma" */ + +static int rpm_reg_write_active(struct qcom_rpm_reg *vreg, + struct rpm_regulator_req *req, + size_t size) +{ + return qcom_rpm_smd_write(vreg->rpm, + QCOM_SMD_RPM_ACTIVE_STATE, + vreg->type, + vreg->id, + req, size); +} + +static int rpm_reg_enable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + struct rpm_regulator_req req; + int ret; + + req.key = RPM_KEY_SWEN; + req.nbytes = sizeof(u32); + req.value = 1; + + ret = rpm_reg_write_active(vreg, &req, sizeof(req)); + if (!ret) + vreg->is_enabled = 1; + + return ret; +} + +static int rpm_reg_is_enabled(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + + return vreg->is_enabled; +} + +static int rpm_reg_disable(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + struct rpm_regulator_req req; + int ret; + + req.key = RPM_KEY_SWEN; + req.nbytes = sizeof(u32); + req.value = 0; + + ret = rpm_reg_write_active(vreg, &req, sizeof(req)); + if (!ret) + vreg->is_enabled = 0; + + return ret; +} + +static int rpm_reg_get_voltage(struct regulator_dev *rdev) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + + return vreg->uV; +} + +static int rpm_reg_set_voltage(struct regulator_dev *rdev, + int min_uV, + int max_uV, + unsigned *selector) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + struct rpm_regulator_req req; + int ret = 0; + + req.key = RPM_KEY_UV; + req.nbytes = sizeof(u32); + req.value = min_uV; + + ret = rpm_reg_write_active(vreg, &req, sizeof(req)); + if (!ret) + vreg->uV = min_uV; + + return ret; +} + +static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA) +{ + struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); + struct rpm_regulator_req req; + + req.key = RPM_KEY_MA; + req.nbytes = sizeof(u32); + req.value = load_uA; + + return rpm_reg_write_active(vreg, &req, sizeof(req)); +} + +static const struct regulator_ops rpm_smps_ldo_ops = { + .enable = rpm_reg_enable, + .disable = rpm_reg_disable, + .is_enabled = rpm_reg_is_enabled, + + .get_voltage = rpm_reg_get_voltage, + .set_voltage = rpm_reg_set_voltage, + + .set_load = rpm_reg_set_load, +}; + +static const struct regulator_ops rpm_switch_ops = { + .enable = rpm_reg_enable, + .disable = rpm_reg_disable, + .is_enabled = rpm_reg_is_enabled, +}; + +static const struct regulator_desc pm8x41_hfsmps = { + .linear_ranges = (struct regulator_linear_range[]) { + REGULATOR_LINEAR_RANGE( 375000, 0, 95, 12500), + REGULATOR_LINEAR_RANGE(1550000, 96, 158, 25000), + }, + .n_linear_ranges = 2, + .n_voltages = 159, + .ops = &rpm_smps_ldo_ops, +}; + +static const struct regulator_desc pm8841_ftsmps = { + .linear_ranges = (struct regulator_linear_range[]) { + REGULATOR_LINEAR_RANGE(350000, 0, 184, 5000), + REGULATOR_LINEAR_RANGE(700000, 185, 339, 10000), + }, + .n_linear_ranges = 2, + .n_voltages = 340, + .ops = &rpm_smps_ldo_ops, +}; + +static const struct regulator_desc pm8941_boost = { + .linear_ranges = (struct regulator_linear_range[]) { + REGULATOR_LINEAR_RANGE(4000000, 0, 15, 100000), + }, + .n_linear_ranges = 1, + .n_voltages = 16, + .ops = &rpm_smps_ldo_ops, +}; + +static const struct regulator_desc pm8941_pldo = { + .linear_ranges = (struct regulator_linear_range[]) { + REGULATOR_LINEAR_RANGE( 750000, 0, 30, 25000), + REGULATOR_LINEAR_RANGE(1500000, 31, 99, 50000), + }, + .n_linear_ranges = 2, + .n_voltages = 100, + .ops = &rpm_smps_ldo_ops, +}; + +static const struct regulator_desc pm8941_nldo = { + .linear_ranges = (struct regulator_linear_range[]) { + REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500), + }, + .n_linear_ranges = 1, + .n_voltages = 64, + .ops = &rpm_smps_ldo_ops, +}; + +static const struct regulator_desc pm8941_lnldo = { + .fixed_uV = 1740000, + .ops = &rpm_smps_ldo_ops, +}; + +static const struct regulator_desc pm8941_switch = { + .ops = &rpm_switch_ops, +}; + +struct rpm_regulator_data { + const char *name; + u32 type; + u32 id; + const struct regulator_desc *desc; + const char *supply; +}; + +static const struct rpm_regulator_data rpm_pm8841_regulators[] = { + { "s1", QCOM_SMD_RPM_SMPB, 1, &pm8x41_hfsmps, "vdd_s1" }, + { "s2", QCOM_SMD_RPM_SMPB, 2, &pm8841_ftsmps, "vdd_s2" }, + { "s3", QCOM_SMD_RPM_SMPB, 3, &pm8x41_hfsmps, "vdd_s3" }, + { "s4", QCOM_SMD_RPM_SMPB, 4, &pm8841_ftsmps, "vdd_s4" }, + { "s5", QCOM_SMD_RPM_SMPB, 5, &pm8841_ftsmps, "vdd_s5" }, + { "s6", QCOM_SMD_RPM_SMPB, 6, &pm8841_ftsmps, "vdd_s6" }, + { "s7", QCOM_SMD_RPM_SMPB, 7, &pm8841_ftsmps, "vdd_s7" }, + { "s8", QCOM_SMD_RPM_SMPB, 8, &pm8841_ftsmps, "vdd_s8" }, + {} +}; + +static const struct rpm_regulator_data rpm_pm8941_regulators[] = { + { "s1", QCOM_SMD_RPM_SMPA, 1, &pm8x41_hfsmps, "vdd_s1" }, + { "s2", QCOM_SMD_RPM_SMPA, 2, &pm8x41_hfsmps, "vdd_s2" }, + { "s3", QCOM_SMD_RPM_SMPA, 3, &pm8x41_hfsmps, "vdd_s3" }, + { "s4", QCOM_SMD_RPM_BOOST, 1, &pm8941_boost }, + + { "l1", QCOM_SMD_RPM_LDOA, 1, &pm8941_nldo, "vdd_l1_l3" }, + { "l2", QCOM_SMD_RPM_LDOA, 2, &pm8941_nldo, "vdd_l2_lvs1_2_3" }, + { "l3", QCOM_SMD_RPM_LDOA, 3, &pm8941_nldo, "vdd_l1_l3" }, + { "l4", QCOM_SMD_RPM_LDOA, 4, &pm8941_nldo, "vdd_l4_l11" }, + { "l5", QCOM_SMD_RPM_LDOA, 5, &pm8941_lnldo, "vdd_l5_l7" }, + { "l6", QCOM_SMD_RPM_LDOA, 6, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, + { "l7", QCOM_SMD_RPM_LDOA, 7, &pm8941_lnldo, "vdd_l5_l7" }, + { "l8", QCOM_SMD_RPM_LDOA, 8, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, + { "l9", QCOM_SMD_RPM_LDOA, 9, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, + { "l10", QCOM_SMD_RPM_LDOA, 10, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, + { "l11", QCOM_SMD_RPM_LDOA, 11, &pm8941_nldo, "vdd_l4_l11" }, + { "l12", QCOM_SMD_RPM_LDOA, 12, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, + { "l13", QCOM_SMD_RPM_LDOA, 13, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, + { "l14", QCOM_SMD_RPM_LDOA, 14, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, + { "l15", QCOM_SMD_RPM_LDOA, 15, &pm8941_pldo, "vdd_l6_l12_l14_l15" }, + { "l16", QCOM_SMD_RPM_LDOA, 16, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, + { "l17", QCOM_SMD_RPM_LDOA, 17, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, + { "l18", QCOM_SMD_RPM_LDOA, 18, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, + { "l19", QCOM_SMD_RPM_LDOA, 19, &pm8941_pldo, "vdd_l8_l16_l18_l19" }, + { "l20", QCOM_SMD_RPM_LDOA, 20, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, + { "l21", QCOM_SMD_RPM_LDOA, 21, &pm8941_pldo, "vdd_l21" }, + { "l22", QCOM_SMD_RPM_LDOA, 22, &pm8941_pldo, "vdd_l9_l10_l17_l22" }, + { "l23", QCOM_SMD_RPM_LDOA, 23, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, + { "l24", QCOM_SMD_RPM_LDOA, 24, &pm8941_pldo, "vdd_l13_l20_l23_l24" }, + + { "lvs1", QCOM_SMD_RPM_VSA, 1, &pm8941_switch, "vdd_l2_lvs1_2_3" }, + { "lvs2", QCOM_SMD_RPM_VSA, 2, &pm8941_switch, "vdd_l2_lvs1_2_3" }, + { "lvs3", QCOM_SMD_RPM_VSA, 3, &pm8941_switch, "vdd_l2_lvs1_2_3" }, + + { "5vs1", QCOM_SMD_RPM_VSA, 4, &pm8941_switch, "vin_5vs" }, + { "5vs2", QCOM_SMD_RPM_VSA, 5, &pm8941_switch, "vin_5vs" }, + + {} +}; + +static const struct of_device_id rpm_of_match[] = { + { .compatible = "qcom,rpm-pm8841-regulators", .data = &rpm_pm8841_regulators }, + { .compatible = "qcom,rpm-pm8941-regulators", .data = &rpm_pm8941_regulators }, + {} +}; +MODULE_DEVICE_TABLE(of, rpm_of_match); + +static int rpm_reg_probe(struct platform_device *pdev) +{ + const struct rpm_regulator_data *reg; + const struct of_device_id *match; + struct regulator_config config = { }; + struct regulator_dev *rdev; + struct qcom_rpm_reg *vreg; + struct qcom_smd_rpm *rpm; + + rpm = dev_get_drvdata(pdev->dev.parent); + if (!rpm) { + dev_err(&pdev->dev, "unable to retrieve handle to rpm\n"); + return -ENODEV; + } + + match = of_match_device(rpm_of_match, &pdev->dev); + for (reg = match->data; reg->name; reg++) { + vreg = devm_kzalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL); + if (!vreg) + return -ENOMEM; + + vreg->dev = &pdev->dev; + vreg->type = reg->type; + vreg->id = reg->id; + vreg->rpm = rpm; + + memcpy(&vreg->desc, reg->desc, sizeof(vreg->desc)); + + vreg->desc.id = -1; + vreg->desc.owner = THIS_MODULE; + vreg->desc.type = REGULATOR_VOLTAGE; + vreg->desc.name = reg->name; + vreg->desc.supply_name = reg->supply; + vreg->desc.of_match = reg->name; + + config.dev = &pdev->dev; + config.driver_data = vreg; + rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register %s\n", reg->name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static struct platform_driver rpm_reg_driver = { + .probe = rpm_reg_probe, + .driver = { + .name = "qcom_rpm_smd_regulator", + .of_match_table = rpm_of_match, + }, +}; + +static int __init rpm_reg_init(void) +{ + return platform_driver_register(&rpm_reg_driver); +} +subsys_initcall(rpm_reg_init); + +static void __exit rpm_reg_exit(void) +{ + platform_driver_unregister(&rpm_reg_driver); +} +module_exit(rpm_reg_exit) + +MODULE_DESCRIPTION("Qualcomm RPM regulator driver"); +MODULE_LICENSE("GPL v2"); From 30f93ca8323f0c21b789bea0f7db8e8e3a7915c6 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 17 Aug 2015 08:16:51 +0530 Subject: [PATCH 59/70] regulator: core: Define regulator_set_voltage_triplet() Voltage tolerance isn't necessarily same on both sides of the target voltage and regulator_set_voltage_tol() wouldn't be suitable in such cases. Add another routine regulator_set_voltage_triplet(), which accepts target, min and max voltages as arguments. This first tries to set the voltage between the target voltage and the upper limit, then fall back on the full range. The idea behind this is to set regulator's voltage as close to the target voltage, as possible. Based on regulator_set_voltage_tol(). Signed-off-by: Viresh Kumar Signed-off-by: Mark Brown --- include/linux/regulator/consumer.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index f8a689ed62a5..e325d4606b62 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -552,6 +552,16 @@ static inline int regulator_count_voltages(struct regulator *regulator) } #endif +static inline int regulator_set_voltage_triplet(struct regulator *regulator, + int min_uV, int target_uV, + int max_uV) +{ + if (regulator_set_voltage(regulator, target_uV, max_uV) == 0) + return 0; + + return regulator_set_voltage(regulator, min_uV, max_uV); +} + static inline int regulator_set_voltage_tol(struct regulator *regulator, int new_uV, int tol_uV) { From 93576842718edf302b03f30b9915d3e704b0c78a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 17 Aug 2015 12:30:58 +0530 Subject: [PATCH 60/70] regulator: core: Use IS_ERR_OR_NULL() Use IS_ERR_OR_NULL() rather than open coding it. Signed-off-by: Viresh Kumar Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 999a94b9735e..5d61eb8f2a79 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1588,7 +1588,7 @@ static void _regulator_put(struct regulator *regulator) { struct regulator_dev *rdev; - if (regulator == NULL || IS_ERR(regulator)) + if (IS_ERR_OR_NULL(regulator)) return; lockdep_assert_held_once(®ulator_list_mutex); From 5a286aae3d2c6e494fbcafdf4e911e2e976562a8 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 19 Aug 2015 11:17:53 +0800 Subject: [PATCH 61/70] regulator: qcom_smd: Set n_voltages for pm8941_lnldo Just setting fixed_uV is not enough, the regulator core will also check n_voltages setting. The fixed_uV only works when n_voltages is 1. Signed-off-by: Axel Lin Reviewed-by: Bjorn Andersson Signed-off-by: Mark Brown --- drivers/regulator/qcom_smd-regulator.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c index 9d093ae36ba7..9c6167dd2c8b 100644 --- a/drivers/regulator/qcom_smd-regulator.c +++ b/drivers/regulator/qcom_smd-regulator.c @@ -203,6 +203,7 @@ static const struct regulator_desc pm8941_nldo = { static const struct regulator_desc pm8941_lnldo = { .fixed_uV = 1740000, + .n_voltages = 1, .ops = &rpm_smps_ldo_ops, }; From ee3010d0ab288d1c307464c1bd1dc3bf16aca7e4 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Fri, 21 Aug 2015 14:38:39 +0200 Subject: [PATCH 62/70] regulators: max77693: register driver earlier to avoid deferred probe MAX77693 based regulators are used by USB gadget subsystem, which doesn't support deferred probe, so the driver should be registered before USB gadget drivers get probed. Signed-off-by: Marek Szyprowski Signed-off-by: Mark Brown --- drivers/regulator/max77693.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c index 788379b87962..de730fd3f8a5 100644 --- a/drivers/regulator/max77693.c +++ b/drivers/regulator/max77693.c @@ -300,7 +300,17 @@ static struct platform_driver max77693_pmic_driver = { .id_table = max77693_pmic_id, }; -module_platform_driver(max77693_pmic_driver); +static int __init max77693_pmic_init(void) +{ + return platform_driver_register(&max77693_pmic_driver); +} +subsys_initcall(max77693_pmic_init); + +static void __exit max77693_pmic_cleanup(void) +{ + platform_driver_unregister(&max77693_pmic_driver); +} +module_exit(max77693_pmic_cleanup); MODULE_DESCRIPTION("MAXIM 77693/77843 regulator driver"); MODULE_AUTHOR("Jonghwa Lee "); From 5b87af4cca175c4f03f790f2b15be7e4dd436df9 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Tue, 25 Aug 2015 08:31:17 +0200 Subject: [PATCH 63/70] regulator: isl9305: Export OF module alias information The I2C core always reports the MODALIAS uevent as "i2c:" regardless of the mechanism that was used to register the device (i.e: OF or board code) and the table that is used later to match the driver with the device (i.e: I2C id table or OF match table). So drivers needs to export the I2C id table and this be built into the module or udev won't have the necessary information to autoload the needed driver module when the device is added. But this means that OF-only drivers needs to have both OF and I2C id tables that have to be kept in sync and also the dev node compatible manufacturer prefix is stripped when reporting the MODALIAS. Which can lead to issues if two vendors use the same I2C device name for example. To avoid the above, the I2C core behavior may be changed in the future to not require an SPI device table for OF-only drivers and report the OF module alias. So, it's better to also export the OF table even when is unused now to prevent breaking module loading when the core changes. Signed-off-by: Javier Martinez Canillas Signed-off-by: Mark Brown --- drivers/regulator/isl9305.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/isl9305.c b/drivers/regulator/isl9305.c index 6e3a15fe00f1..e02e9a9dddbd 100644 --- a/drivers/regulator/isl9305.c +++ b/drivers/regulator/isl9305.c @@ -183,6 +183,7 @@ static const struct of_device_id isl9305_dt_ids[] = { { .compatible = "isil,isl9305h" }, {}, }; +MODULE_DEVICE_TABLE(of, isl9305_dt_ids); #endif static const struct i2c_device_id isl9305_i2c_id[] = { From d9ffae15f7b1933c71dfb7c5e8ef61296d2833d7 Mon Sep 17 00:00:00 2001 From: Milo Kim Date: Tue, 25 Aug 2015 14:54:11 +0900 Subject: [PATCH 64/70] regulator: lp872x: use the private data instead of updating I2C device platform data Currently, lp872x driver parses the DT and copies values into the 'cl->dev.platform_data' if 'of_node' exists. This may have architectural issue. Platform data is configurable through the DT or I2C board info inside the platform area. However, lp872x driver changes this configuration when it is loaded. The lp872x driver should get data from the platform side and use the private data, 'lp872x->pdata' instead of changing the original platform data. Signed-off-by: Milo Kim Signed-off-by: Mark Brown --- drivers/regulator/lp872x.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index 3de328ab41f3..9142c1adc70c 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -903,6 +903,7 @@ static struct lp872x_platform_data static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) { struct lp872x *lp; + struct lp872x_platform_data *pdata; int ret; const int lp872x_num_regulators[] = { [LP8720] = LP8720_NUM_REGULATORS, @@ -910,8 +911,10 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) }; if (cl->dev.of_node) - cl->dev.platform_data = lp872x_populate_pdata_from_dt(&cl->dev, + pdata = lp872x_populate_pdata_from_dt(&cl->dev, (enum lp872x_id)id->driver_data); + else + pdata = dev_get_platdata(&cl->dev); lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL); if (!lp) @@ -927,7 +930,7 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) } lp->dev = &cl->dev; - lp->pdata = dev_get_platdata(&cl->dev); + lp->pdata = pdata; lp->chipid = id->driver_data; i2c_set_clientdata(cl, lp); From 804486b19de92449203f95027c2b207d8c5d5c79 Mon Sep 17 00:00:00 2001 From: Milo Kim Date: Tue, 25 Aug 2015 14:54:12 +0900 Subject: [PATCH 65/70] regulator: lp872x: handle error case If memory allocation gets failed on parsing the DT, then it returns error '-ENOMEM' explicitly. Then, the driver exists from the _probe(). Signed-off-by: Milo Kim Signed-off-by: Mark Brown --- drivers/regulator/lp872x.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index 9142c1adc70c..8702e7384af7 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -849,7 +849,7 @@ static struct lp872x_platform_data pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) - goto out; + return ERR_PTR(-ENOMEM); of_property_read_u8(np, "ti,general-config", &pdata->general_config); if (of_find_property(np, "ti,update-config", NULL)) @@ -857,7 +857,7 @@ static struct lp872x_platform_data pdata->dvs = devm_kzalloc(dev, sizeof(struct lp872x_dvs), GFP_KERNEL); if (!pdata->dvs) - goto out; + return ERR_PTR(-ENOMEM); pdata->dvs->gpio = of_get_named_gpio(np, "ti,dvs-gpio", 0); of_property_read_u8(np, "ti,dvs-vsel", (u8 *)&pdata->dvs->vsel); @@ -910,11 +910,14 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) [LP8725] = LP8725_NUM_REGULATORS, }; - if (cl->dev.of_node) + if (cl->dev.of_node) { pdata = lp872x_populate_pdata_from_dt(&cl->dev, (enum lp872x_id)id->driver_data); - else + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } else { pdata = dev_get_platdata(&cl->dev); + } lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL); if (!lp) From 099982fac0f3e884ed4af2178d4dcded69e0042e Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Fri, 28 Aug 2015 16:22:18 +0530 Subject: [PATCH 66/70] regulator: core: use debug level print in regulator_check_drms When calling regulator_set_load, regulator_check_drms prints and returns an error if the regulator device's flag REGULATOR_CHANGE_DRMS isn't set. drms_uA_update, however, bails out without reporting an error. Replace the error print with a debug level print so that we don't get such prints when the underlying regulator doesn't support DRMS. Signed-off-by: Archit Taneja Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 5d61eb8f2a79..22e276f7e72f 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -295,7 +295,7 @@ static int regulator_check_drms(struct regulator_dev *rdev) return -ENODEV; } if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_DRMS)) { - rdev_err(rdev, "operation not allowed\n"); + rdev_dbg(rdev, "operation not allowed\n"); return -EPERM; } return 0; From a02daad70214a820988c045494a15dea047c16d4 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Sat, 29 Aug 2015 02:35:13 +0200 Subject: [PATCH 67/70] regulator: pfuze100: Remove unnecessary MODULE_ALIAS() The driver has a I2C device id table that is used to create the modaliases and also "pfuze100-regulator" is not a supported I2C id, so is never used. Signed-off-by: Javier Martinez Canillas Signed-off-by: Mark Brown --- drivers/regulator/pfuze100-regulator.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c index 8cc8d1877c44..d477fbbc2c7b 100644 --- a/drivers/regulator/pfuze100-regulator.c +++ b/drivers/regulator/pfuze100-regulator.c @@ -653,4 +653,3 @@ module_i2c_driver(pfuze_driver); MODULE_AUTHOR("Robin Gong "); MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100/PFUZE200 PMIC"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("i2c:pfuze100-regulator"); From ce317515b43f3e0b789b41df9b54e1608c783c5d Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Sat, 29 Aug 2015 13:56:10 +0200 Subject: [PATCH 68/70] regulator: ad5398: Remove unnecessary MODULE_ALIAS() The driver has a I2C device id table that is used to create the modaliases and also "ad5398-regulator" is not a supported I2C id, so it's never used. Signed-off-by: Javier Martinez Canillas Signed-off-by: Mark Brown --- drivers/regulator/ad5398.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c index 48016a050d5f..ea50a886ba63 100644 --- a/drivers/regulator/ad5398.c +++ b/drivers/regulator/ad5398.c @@ -275,4 +275,3 @@ module_exit(ad5398_exit); MODULE_DESCRIPTION("AD5398 and AD5821 current regulator driver"); MODULE_AUTHOR("Sonic Zhang"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("i2c:ad5398-regulator"); From 6cb6e6be41b5b42370e9028d7b691803295b097e Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Sat, 29 Aug 2015 13:56:11 +0200 Subject: [PATCH 69/70] regulator: ltc3589: Remove unnecessary MODULE_ALIAS() The driver has a I2C device id table that is used to create the modaliases and already contains a "ltc3589" device id. So the modalias is unnecessary. Signed-off-by: Javier Martinez Canillas Signed-off-by: Mark Brown --- drivers/regulator/ltc3589.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c index c31dfa8805d9..cc22ac66c8fd 100644 --- a/drivers/regulator/ltc3589.c +++ b/drivers/regulator/ltc3589.c @@ -552,4 +552,3 @@ module_i2c_driver(ltc3589_driver); MODULE_AUTHOR("Philipp Zabel "); MODULE_DESCRIPTION("Regulator driver for Linear Technology LTC3589(-1,2)"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("i2c:ltc3589"); From 6d73aef11760017c37e448d84595dcb44e1c3827 Mon Sep 17 00:00:00 2001 From: kbuild test robot Date: Sun, 30 Aug 2015 20:20:42 +0800 Subject: [PATCH 70/70] regulator: mt6311: fix platform_no_drv_owner.cocci warnings drivers/regulator/mt6311-regulator.c:169:3-8: No need to set .owner here. The core will do it. Remove .owner field if calls are used which set it automatically Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Signed-off-by: Fengguang Wu Signed-off-by: Mark Brown --- drivers/regulator/mt6311-regulator.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/regulator/mt6311-regulator.c b/drivers/regulator/mt6311-regulator.c index 2c2c85bf08c5..02c4e5feca8e 100644 --- a/drivers/regulator/mt6311-regulator.c +++ b/drivers/regulator/mt6311-regulator.c @@ -166,7 +166,6 @@ MODULE_DEVICE_TABLE(of, mt6311_dt_ids); static struct i2c_driver mt6311_regulator_driver = { .driver = { .name = "mt6311", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(mt6311_dt_ids), }, .probe = mt6311_i2c_probe,