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WSL2-Linux-Kernel
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mfd: rk808: Split into core and i2c 

Split rk808 into a core and an i2c part in preparation for
SPI support.

Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> # for RTC
Tested-by: Diederik de Haas <didi.debian@cknow.org> # Rock64, Quartz64 Model A + B
Tested-by: Vincent Legoll <vincent.legoll@gmail.com> # Pine64 QuartzPro64
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230504173618.142075-6-sebastian.reichel@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Sebastian Reichel 2023-05-04 19:36:09 +02:00 коммит произвёл Lee Jones
Родитель 049449976f
Коммит c20e8c5b12
12 изменённых файлов: 256 добавлений и 183 удалений
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2
drivers/clk/Kconfig
Просмотреть файл

@ -82,7 +82,7 @@ config COMMON_CLK_MAX9485
config COMMON_CLK_RK808
tristate "Clock driver for RK805/RK808/RK809/RK817/RK818"
depends on MFD_RK808
depends on MFD_RK8XX
help
This driver supports RK805, RK809 and RK817, RK808 and RK818 crystal oscillator clock.
These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each.

2
drivers/input/misc/Kconfig
Просмотреть файл

@ -609,7 +609,7 @@ config INPUT_PWM_VIBRA
config INPUT_RK805_PWRKEY
tristate "Rockchip RK805 PMIC power key support"
depends on MFD_RK808
depends on MFD_RK8XX
help
Select this option to enable power key driver for RK805.

7
drivers/mfd/Kconfig
Просмотреть файл

@ -1183,12 +1183,17 @@ config MFD_RC5T583
Additional drivers must be enabled in order to use the
different functionality of the device.
config MFD_RK808
config MFD_RK8XX
bool
select MFD_CORE
config MFD_RK8XX_I2C
tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power Management Chip"
depends on I2C && OF
select MFD_CORE
select REGMAP_I2C
select REGMAP_IRQ
select MFD_RK8XX
help
If you say yes here you get support for the RK805, RK808, RK809,
RK817 and RK818 Power Management chips.

3
drivers/mfd/Makefile
Просмотреть файл

@ -214,7 +214,8 @@ obj-$(CONFIG_MFD_PALMAS) += palmas.o
obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
obj-$(CONFIG_MFD_NTXEC) += ntxec.o
obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
obj-$(CONFIG_MFD_RK808) += rk808.o
obj-$(CONFIG_MFD_RK8XX) += rk8xx-core.o
obj-$(CONFIG_MFD_RK8XX_I2C) += rk8xx-i2c.o
obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
obj-$(CONFIG_MFD_SYSCON) += syscon.o

209
drivers/mfd/rk808.c → drivers/mfd/rk8xx-core.c
Просмотреть файл

@ -1,18 +1,15 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* MFD core driver for Rockchip RK808/RK818
* MFD core driver for Rockchip RK8XX
*
* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
* Copyright (C) 2016 PHYTEC Messtechnik GmbH
*
* Author: Chris Zhong <zyw@rock-chips.com>
* Author: Zhang Qing <zhangqing@rock-chips.com>
*
* Copyright (C) 2016 PHYTEC Messtechnik GmbH
*
* Author: Wadim Egorov <w.egorov@phytec.de>
*/
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mfd/rk808.h>
#include <linux/mfd/core.h>
@ -27,92 +24,6 @@ struct rk808_reg_data {
int value;
};
static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
* Notes:
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
* we don't use that feature. It's better to cache.
* - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
* bits are cleared in case when we shutoff anyway, but better safe.
*/
switch (reg) {
case RK808_SECONDS_REG ... RK808_WEEKS_REG:
case RK808_RTC_STATUS_REG:
case RK808_VB_MON_REG:
case RK808_THERMAL_REG:
case RK808_DCDC_UV_STS_REG:
case RK808_LDO_UV_STS_REG:
case RK808_DCDC_PG_REG:
case RK808_LDO_PG_REG:
case RK808_DEVCTRL_REG:
case RK808_INT_STS_REG1:
case RK808_INT_STS_REG2:
return true;
}
return false;
}
static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
* Notes:
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
* we don't use that feature. It's better to cache.
*/
switch (reg) {
case RK817_SECONDS_REG ... RK817_WEEKS_REG:
case RK817_RTC_STATUS_REG:
case RK817_CODEC_DTOP_LPT_SRST:
case RK817_GAS_GAUGE_ADC_CONFIG0 ... RK817_GAS_GAUGE_CUR_ADC_K0:
case RK817_PMIC_CHRG_STS:
case RK817_PMIC_CHRG_OUT:
case RK817_PMIC_CHRG_IN:
case RK817_INT_STS_REG0:
case RK817_INT_STS_REG1:
case RK817_INT_STS_REG2:
case RK817_SYS_STS:
return true;
}
return false;
}
static const struct regmap_config rk818_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK818_USB_CTRL_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk805_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK805_OFF_SOURCE_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk808_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK808_IO_POL_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk817_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK817_GPIO_INT_CFG,
.cache_type = REGCACHE_NONE,
.volatile_reg = rk817_is_volatile_reg,
};
static const struct resource rtc_resources[] = {
DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM),
};
@ -605,9 +516,9 @@ static int rk808_restart(struct sys_off_data *data)
return NOTIFY_DONE;
}
static void rk8xx_shutdown(struct i2c_client *client)
void rk8xx_shutdown(struct device *dev)
{
struct rk808 *rk808 = i2c_get_clientdata(client);
struct rk808 *rk808 = dev_get_drvdata(dev);
int ret;
switch (rk808->variant) {
@ -628,61 +539,31 @@ static void rk8xx_shutdown(struct i2c_client *client)
return;
}
if (ret)
dev_warn(&client->dev,
dev_warn(dev,
"Cannot switch to power down function\n");
}
EXPORT_SYMBOL_GPL(rk8xx_shutdown);
static const struct of_device_id rk808_of_match[] = {
{ .compatible = "rockchip,rk805" },
{ .compatible = "rockchip,rk808" },
{ .compatible = "rockchip,rk809" },
{ .compatible = "rockchip,rk817" },
{ .compatible = "rockchip,rk818" },
{ },
};
MODULE_DEVICE_TABLE(of, rk808_of_match);
static int rk808_probe(struct i2c_client *client)
int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap)
{
struct device_node *np = client->dev.of_node;
struct rk808 *rk808;
const struct rk808_reg_data *pre_init_reg;
const struct mfd_cell *cells;
int nr_pre_init_regs;
int nr_cells;
int msb, lsb;
unsigned char pmic_id_msb, pmic_id_lsb;
int ret;
int i;
rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
rk808 = devm_kzalloc(dev, sizeof(*rk808), GFP_KERNEL);
if (!rk808)
return -ENOMEM;
if (of_device_is_compatible(np, "rockchip,rk817") ||
of_device_is_compatible(np, "rockchip,rk809")) {
pmic_id_msb = RK817_ID_MSB;
pmic_id_lsb = RK817_ID_LSB;
} else {
pmic_id_msb = RK808_ID_MSB;
pmic_id_lsb = RK808_ID_LSB;
}
/* Read chip variant */
msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
if (msb < 0)
return dev_err_probe(&client->dev, msb, "failed to read the chip id MSB\n");
lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
if (lsb < 0)
return dev_err_probe(&client->dev, lsb, "failed to read the chip id LSB\n");
rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
rk808->dev = dev;
rk808->variant = variant;
rk808->regmap = regmap;
dev_set_drvdata(dev, rk808);
switch (rk808->variant) {
case RK805_ID:
rk808->regmap_cfg = &rk805_regmap_config;
rk808->regmap_irq_chip = &rk805_irq_chip;
pre_init_reg = rk805_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
@ -690,7 +571,6 @@ static int rk808_probe(struct i2c_client *client)
nr_cells = ARRAY_SIZE(rk805s);
break;
case RK808_ID:
rk808->regmap_cfg = &rk808_regmap_config;
rk808->regmap_irq_chip = &rk808_irq_chip;
pre_init_reg = rk808_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg);
@ -698,7 +578,6 @@ static int rk808_probe(struct i2c_client *client)
nr_cells = ARRAY_SIZE(rk808s);
break;
case RK818_ID:
rk808->regmap_cfg = &rk818_regmap_config;
rk808->regmap_irq_chip = &rk818_irq_chip;
pre_init_reg = rk818_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
@ -707,7 +586,6 @@ static int rk808_probe(struct i2c_client *client)
break;
case RK809_ID:
case RK817_ID:
rk808->regmap_cfg = &rk817_regmap_config;
rk808->regmap_irq_chip = &rk817_irq_chip;
pre_init_reg = rk817_pre_init_reg;
nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg);
@ -715,27 +593,20 @@ static int rk808_probe(struct i2c_client *client)
nr_cells = ARRAY_SIZE(rk817s);
break;
default:
dev_err(&client->dev, "Unsupported RK8XX ID %lu\n",
rk808->variant);
dev_err(dev, "Unsupported RK8XX ID %lu\n", rk808->variant);
return -EINVAL;
}
rk808->dev = &client->dev;
i2c_set_clientdata(client, rk808);
dev_info(dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
if (IS_ERR(rk808->regmap))
return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap),
"regmap initialization failed\n");
if (!irq)
return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n");
if (!client->irq)
return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n");
ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq,
ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq,
IRQF_ONESHOT, -1,
rk808->regmap_irq_chip, &rk808->irq_data);
if (ret)
return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n");
return dev_err_probe(dev, ret, "Failed to add irq_chip\n");
for (i = 0; i < nr_pre_init_regs; i++) {
ret = regmap_update_bits(rk808->regmap,
@ -743,45 +614,46 @@ static int rk808_probe(struct i2c_client *client)
pre_init_reg[i].mask,
pre_init_reg[i].value);
if (ret)
return dev_err_probe(&client->dev, ret, "0x%x write err\n",
return dev_err_probe(dev, ret, "0x%x write err\n",
pre_init_reg[i].addr);
}
ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
cells, nr_cells, NULL, 0,
regmap_irq_get_domain(rk808->irq_data));
if (ret)
return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n");
return dev_err_probe(dev, ret, "failed to add MFD devices\n");
if (of_property_read_bool(np, "rockchip,system-power-controller")) {
ret = devm_register_sys_off_handler(&client->dev,
if (device_property_read_bool(dev, "rockchip,system-power-controller")) {
ret = devm_register_sys_off_handler(dev,
SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH,
&rk808_power_off, rk808);
if (ret)
return dev_err_probe(&client->dev, ret,
return dev_err_probe(dev, ret,
"failed to register poweroff handler\n");
switch (rk808->variant) {
case RK809_ID:
case RK817_ID:
ret = devm_register_sys_off_handler(&client->dev,
ret = devm_register_sys_off_handler(dev,
SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH,
&rk808_restart, rk808);
if (ret)
dev_warn(&client->dev, "failed to register rst handler, %d\n", ret);
dev_warn(dev, "failed to register rst handler, %d\n", ret);
break;
default:
dev_dbg(&client->dev, "pmic controlled board reset not supported\n");
dev_dbg(dev, "pmic controlled board reset not supported\n");
break;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(rk8xx_probe);
static int __maybe_unused rk8xx_suspend(struct device *dev)
int rk8xx_suspend(struct device *dev)
{
struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev));
struct rk808 *rk808 = dev_get_drvdata(dev);
int ret = 0;
switch (rk808->variant) {
@ -804,10 +676,11 @@ static int __maybe_unused rk8xx_suspend(struct device *dev)
return ret;
}
EXPORT_SYMBOL_GPL(rk8xx_suspend);
static int __maybe_unused rk8xx_resume(struct device *dev)
int rk8xx_resume(struct device *dev)
{
struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev));
struct rk808 *rk808 = dev_get_drvdata(dev);
int ret = 0;
switch (rk808->variant) {
@ -824,22 +697,10 @@ static int __maybe_unused rk8xx_resume(struct device *dev)
return ret;
}
static SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume);
static struct i2c_driver rk808_i2c_driver = {
.driver = {
.name = "rk808",
.of_match_table = rk808_of_match,
.pm = &rk8xx_pm_ops,
},
.probe_new = rk808_probe,
.shutdown = rk8xx_shutdown,
};
module_i2c_driver(rk808_i2c_driver);
EXPORT_SYMBOL_GPL(rk8xx_resume);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
MODULE_DESCRIPTION("RK808/RK818 PMIC driver");
MODULE_DESCRIPTION("RK8xx PMIC core");

200
drivers/mfd/rk8xx-i2c.c Normal file
Просмотреть файл

@ -0,0 +1,200 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Rockchip RK808/RK818 Core (I2C) driver
*
* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
* Copyright (C) 2016 PHYTEC Messtechnik GmbH
*
* Author: Chris Zhong <zyw@rock-chips.com>
* Author: Zhang Qing <zhangqing@rock-chips.com>
* Author: Wadim Egorov <w.egorov@phytec.de>
*/
#include <linux/i2c.h>
#include <linux/mfd/rk808.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
* Notes:
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
* we don't use that feature. It's better to cache.
* - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
* bits are cleared in case when we shutoff anyway, but better safe.
*/
switch (reg) {
case RK808_SECONDS_REG ... RK808_WEEKS_REG:
case RK808_RTC_STATUS_REG:
case RK808_VB_MON_REG:
case RK808_THERMAL_REG:
case RK808_DCDC_UV_STS_REG:
case RK808_LDO_UV_STS_REG:
case RK808_DCDC_PG_REG:
case RK808_LDO_PG_REG:
case RK808_DEVCTRL_REG:
case RK808_INT_STS_REG1:
case RK808_INT_STS_REG2:
return true;
}
return false;
}
static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
* Notes:
* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
* we don't use that feature. It's better to cache.
*/
switch (reg) {
case RK817_SECONDS_REG ... RK817_WEEKS_REG:
case RK817_RTC_STATUS_REG:
case RK817_CODEC_DTOP_LPT_SRST:
case RK817_GAS_GAUGE_ADC_CONFIG0 ... RK817_GAS_GAUGE_CUR_ADC_K0:
case RK817_PMIC_CHRG_STS:
case RK817_PMIC_CHRG_OUT:
case RK817_PMIC_CHRG_IN:
case RK817_INT_STS_REG0:
case RK817_INT_STS_REG1:
case RK817_INT_STS_REG2:
case RK817_SYS_STS:
return true;
}
return false;
}
static const struct regmap_config rk818_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK818_USB_CTRL_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk805_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK805_OFF_SOURCE_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk808_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK808_IO_POL_REG,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = rk808_is_volatile_reg,
};
static const struct regmap_config rk817_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = RK817_GPIO_INT_CFG,
.cache_type = REGCACHE_NONE,
.volatile_reg = rk817_is_volatile_reg,
};
static int rk8xx_i2c_get_variant(struct i2c_client *client)
{
u8 pmic_id_msb, pmic_id_lsb;
int msb, lsb;
if (of_device_is_compatible(client->dev.of_node, "rockchip,rk817") ||
of_device_is_compatible(client->dev.of_node, "rockchip,rk809")) {
pmic_id_msb = RK817_ID_MSB;
pmic_id_lsb = RK817_ID_LSB;
} else {
pmic_id_msb = RK808_ID_MSB;
pmic_id_lsb = RK808_ID_LSB;
}
/* Read chip variant */
msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
if (msb < 0)
return dev_err_probe(&client->dev, msb, "failed to read the chip id MSB\n");
lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
if (lsb < 0)
return dev_err_probe(&client->dev, lsb, "failed to read the chip id LSB\n");
return ((msb << 8) | lsb) & RK8XX_ID_MSK;
}
static int rk8xx_i2c_probe(struct i2c_client *client)
{
const struct regmap_config *regmap_cfg;
struct regmap *regmap;
int variant;
variant = rk8xx_i2c_get_variant(client);
if (variant < 0)
return variant;
switch (variant) {
case RK805_ID:
regmap_cfg = &rk805_regmap_config;
break;
case RK808_ID:
regmap_cfg = &rk808_regmap_config;
break;
case RK818_ID:
regmap_cfg = &rk818_regmap_config;
break;
case RK809_ID:
case RK817_ID:
regmap_cfg = &rk817_regmap_config;
break;
default:
return dev_err_probe(&client->dev, -EINVAL, "Unsupported RK8XX ID %x\n", variant);
}
regmap = devm_regmap_init_i2c(client, regmap_cfg);
if (IS_ERR(regmap))
return dev_err_probe(&client->dev, PTR_ERR(regmap),
"regmap initialization failed\n");
return rk8xx_probe(&client->dev, variant, client->irq, regmap);
}
static void rk8xx_i2c_shutdown(struct i2c_client *client)
{
rk8xx_shutdown(&client->dev);
}
static SIMPLE_DEV_PM_OPS(rk8xx_i2c_pm_ops, rk8xx_suspend, rk8xx_resume);
static const struct of_device_id rk8xx_i2c_of_match[] = {
{ .compatible = "rockchip,rk805" },
{ .compatible = "rockchip,rk808" },
{ .compatible = "rockchip,rk809" },
{ .compatible = "rockchip,rk817" },
{ .compatible = "rockchip,rk818" },
{ },
};
MODULE_DEVICE_TABLE(of, rk8xx_i2c_of_match);
static struct i2c_driver rk8xx_i2c_driver = {
.driver = {
.name = "rk8xx-i2c",
.of_match_table = rk8xx_i2c_of_match,
.pm = &rk8xx_i2c_pm_ops,
},
.probe_new = rk8xx_i2c_probe,
.shutdown = rk8xx_i2c_shutdown,
};
module_i2c_driver(rk8xx_i2c_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
MODULE_DESCRIPTION("RK8xx I2C PMIC driver");

2
drivers/pinctrl/Kconfig
Просмотреть файл

@ -407,7 +407,7 @@ config PINCTRL_PISTACHIO
config PINCTRL_RK805
tristate "Pinctrl and GPIO driver for RK805 PMIC"
depends on MFD_RK808
depends on MFD_RK8XX
select GPIOLIB
select PINMUX
select GENERIC_PINCONF

2
drivers/power/supply/Kconfig
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@ -706,7 +706,7 @@ config CHARGER_BQ256XX
config CHARGER_RK817
tristate "Rockchip RK817 PMIC Battery Charger"
depends on MFD_RK808
depends on MFD_RK8XX
help
Say Y to include support for Rockchip RK817 Battery Charger.

2
drivers/regulator/Kconfig
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@ -1056,7 +1056,7 @@ config REGULATOR_RC5T583
config REGULATOR_RK808
tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power regulators"
depends on MFD_RK808
depends on MFD_RK8XX
help
Select this option to enable the power regulator of ROCKCHIP
PMIC RK805,RK809&RK817,RK808 and RK818.

2
drivers/rtc/Kconfig
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@ -395,7 +395,7 @@ config RTC_DRV_NCT3018Y
config RTC_DRV_RK808
tristate "Rockchip RK805/RK808/RK809/RK817/RK818 RTC"
depends on MFD_RK808
depends on MFD_RK8XX
help
If you say yes here you will get support for the
RTC of RK805, RK809 and RK817, RK808 and RK818 PMIC.

6
include/linux/mfd/rk808.h
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@ -794,4 +794,10 @@ struct rk808 {
const struct regmap_config *regmap_cfg;
const struct regmap_irq_chip *regmap_irq_chip;
};
void rk8xx_shutdown(struct device *dev);
int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap);
int rk8xx_suspend(struct device *dev);
int rk8xx_resume(struct device *dev);
#endif /* __LINUX_REGULATOR_RK808_H */

2
sound/soc/codecs/Kconfig
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@ -1313,7 +1313,7 @@ config SND_SOC_RK3328
config SND_SOC_RK817
tristate "Rockchip RK817 audio CODEC"
depends on MFD_RK808 || COMPILE_TEST
depends on MFD_RK8XX || COMPILE_TEST
config SND_SOC_RL6231
tristate