regulator: rk808: Add regulator driver for RK805
Add support for the rk805 regulator. The regulator module consists of 4 DCDCs, 3 LDOs. The output voltages are configurable and are meant to supply power to the main processor and other components. Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Joseph Chen <chenjh@rock-chips.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Elaine Zhang
Lee Jones
Родитель
a5247ca670
Коммит
c4e0d344c1
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@ -687,11 +687,11 @@ config REGULATOR_RC5T583
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outputs which can be controlled by i2c communication.
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config REGULATOR_RK808
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tristate "Rockchip RK808/RK818 Power regulators"
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tristate "Rockchip RK805/RK808/RK818 Power regulators"
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depends on MFD_RK808
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help
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Select this option to enable the power regulator of ROCKCHIP
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PMIC RK808 and RK818.
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PMIC RK805,RK808 and RK818.
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This driver supports the control of different power rails of device
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through regulator interface. The device supports multiple DCDC/LDO
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outputs which can be controlled by i2c communication.
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@ -65,6 +65,27 @@
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/* max steps for increase voltage of Buck1/2, equal 100mv*/
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#define MAX_STEPS_ONE_TIME 8
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#define RK805_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
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_vmask, _ereg, _emask, _etime) \
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[_id] = { \
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.name = (_match), \
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.supply_name = (_supply), \
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.of_match = of_match_ptr(_match), \
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.regulators_node = of_match_ptr("regulators"), \
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.type = REGULATOR_VOLTAGE, \
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.id = (_id), \
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.n_voltages = (((_max) - (_min)) / (_step) + 1), \
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.owner = THIS_MODULE, \
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.min_uV = (_min) * 1000, \
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.uV_step = (_step) * 1000, \
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.vsel_reg = (_vreg), \
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.vsel_mask = (_vmask), \
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.enable_reg = (_ereg), \
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.enable_mask = (_emask), \
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.enable_time = (_etime), \
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.ops = &rk805_reg_ops, \
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}
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#define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg, \
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_vmask, _ereg, _emask, _etime) \
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[_id] = { \
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@ -298,6 +319,28 @@ static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv)
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sel);
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}
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static int rk805_set_suspend_enable(struct regulator_dev *rdev)
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{
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unsigned int reg;
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reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
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return regmap_update_bits(rdev->regmap, reg,
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rdev->desc->enable_mask,
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rdev->desc->enable_mask);
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}
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static int rk805_set_suspend_disable(struct regulator_dev *rdev)
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{
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unsigned int reg;
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reg = rdev->desc->enable_reg + RK808_SLP_SET_OFF_REG_OFFSET;
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return regmap_update_bits(rdev->regmap, reg,
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rdev->desc->enable_mask,
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0);
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}
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static int rk808_set_suspend_enable(struct regulator_dev *rdev)
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{
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unsigned int reg;
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@ -320,6 +363,27 @@ static int rk808_set_suspend_disable(struct regulator_dev *rdev)
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rdev->desc->enable_mask);
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}
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static struct regulator_ops rk805_reg_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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.set_suspend_voltage = rk808_set_suspend_voltage,
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.set_suspend_enable = rk805_set_suspend_enable,
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.set_suspend_disable = rk805_set_suspend_disable,
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};
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static struct regulator_ops rk805_switch_ops = {
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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.set_suspend_enable = rk805_set_suspend_enable,
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.set_suspend_disable = rk805_set_suspend_disable,
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};
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static struct regulator_ops rk808_buck1_2_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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@ -369,6 +433,68 @@ static struct regulator_ops rk808_switch_ops = {
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.set_suspend_disable = rk808_set_suspend_disable,
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};
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static const struct regulator_desc rk805_reg[] = {
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{
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.name = "DCDC_REG1",
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.supply_name = "vcc1",
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.of_match = of_match_ptr("DCDC_REG1"),
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.regulators_node = of_match_ptr("regulators"),
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.id = RK805_ID_DCDC1,
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.ops = &rk805_reg_ops,
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.type = REGULATOR_VOLTAGE,
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.min_uV = 712500,
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.uV_step = 12500,
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.n_voltages = 64,
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.vsel_reg = RK805_BUCK1_ON_VSEL_REG,
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.vsel_mask = RK818_BUCK_VSEL_MASK,
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.enable_reg = RK805_DCDC_EN_REG,
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.enable_mask = BIT(0),
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.owner = THIS_MODULE,
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}, {
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.name = "DCDC_REG2",
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.supply_name = "vcc2",
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.of_match = of_match_ptr("DCDC_REG2"),
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.regulators_node = of_match_ptr("regulators"),
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.id = RK805_ID_DCDC2,
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.ops = &rk805_reg_ops,
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.type = REGULATOR_VOLTAGE,
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.min_uV = 712500,
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.uV_step = 12500,
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.n_voltages = 64,
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.vsel_reg = RK805_BUCK2_ON_VSEL_REG,
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.vsel_mask = RK818_BUCK_VSEL_MASK,
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.enable_reg = RK805_DCDC_EN_REG,
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.enable_mask = BIT(1),
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.owner = THIS_MODULE,
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}, {
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.name = "DCDC_REG3",
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.supply_name = "vcc3",
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.of_match = of_match_ptr("DCDC_REG3"),
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.regulators_node = of_match_ptr("regulators"),
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.id = RK805_ID_DCDC3,
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.ops = &rk805_switch_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = 1,
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.enable_reg = RK805_DCDC_EN_REG,
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.enable_mask = BIT(2),
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.owner = THIS_MODULE,
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},
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RK805_DESC(RK805_ID_DCDC4, "DCDC_REG4", "vcc4", 800, 3400, 100,
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RK805_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK,
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RK805_DCDC_EN_REG, BIT(3), 0),
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RK805_DESC(RK805_ID_LDO1, "LDO_REG1", "vcc5", 800, 3400, 100,
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RK805_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
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BIT(0), 400),
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RK805_DESC(RK805_ID_LDO2, "LDO_REG2", "vcc5", 800, 3400, 100,
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RK805_LDO2_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
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BIT(1), 400),
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RK805_DESC(RK805_ID_LDO3, "LDO_REG3", "vcc6", 800, 3400, 100,
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RK805_LDO3_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK805_LDO_EN_REG,
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BIT(2), 400),
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};
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static const struct regulator_desc rk808_reg[] = {
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{
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.name = "DCDC_REG1",
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@ -625,6 +751,10 @@ static int rk808_regulator_probe(struct platform_device *pdev)
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platform_set_drvdata(pdev, pdata);
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switch (rk808->variant) {
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case RK805_ID:
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regulators = rk805_reg;
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nregulators = RK805_NUM_REGULATORS;
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break;
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case RK808_ID:
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regulators = rk808_reg;
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nregulators = RK808_NUM_REGULATORS;
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