[PATCH v2 0/5] Add support for rk818

[PATCH v2 0/5] Add support for rk818

[Wadim Egorov]

Hopefully, this is the right approach now.

Changes since v1:
- dropped the renaming of the drivers
- renamed the rk808 struct in mfd/rk808.h

Patch 3 is a cosmetic patch for the regulator driver.

Wadim Egorov (7):
  drivers: mfd: rk808: rename rk808 struct to rk8xx
  mfd: RK808: Add RK818 support
  regulator: rk808: Migrate to regulator core's simplified DT parsing
    code
  regulator: rk808: Add regulator driver for RK818
  mfd: dt-bindings: Add RK818 device tree bindings document
  clk: Kconfig: Name RK818 in Kconfig for COMMON_CLK_RK808
  rtc: Kconfig: Name RK818 in Kconfig for RTC_DRV_RK808

 Documentation/devicetree/bindings/mfd/rk808.txt |  37 ++-
 drivers/clk/Kconfig                             |   4 +-
 drivers/clk/clk-rk808.c                         |  20 +-
 drivers/mfd/Kconfig                             |   4 +-
 drivers/mfd/rk808.c                             | 253 +++++++++++---
 drivers/regulator/Kconfig                       |   4 +-
 drivers/regulator/rk808-regulator.c             | 425 +++++++++++++-----------
 drivers/rtc/Kconfig                             |   4 +-
 drivers/rtc/rtc-rk808.c                         |  50 +--
 include/linux/mfd/rk808.h                       | 164 ++++++++-
 10 files changed, 674 insertions(+), 291 deletions(-)

-- 
1.9.1

[PATCH v2 1/7] drivers: mfd: rk808: rename rk808 struct to rk8xx

[Wadim Egorov]

This patch renames the rk808 struct. So it is more clear that this
struct can be shared between all RK8XX related PMIC drivers.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
---
 drivers/clk/clk-rk808.c             | 20 +++++++--------
 drivers/mfd/rk808.c                 | 36 +++++++++++++-------------
 drivers/regulator/rk808-regulator.c |  8 +++---
 drivers/rtc/rtc-rk808.c             | 50 ++++++++++++++++++-------------------
 include/linux/mfd/rk808.h           |  2 +-
 5 files changed, 58 insertions(+), 58 deletions(-)

diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
index 0fee2f4..6df2e72 100644
--- a/drivers/clk/clk-rk808.c
+++ b/drivers/clk/clk-rk808.c
@@ -25,7 +25,7 @@
 #define RK808_NR_OUTPUT 2
 
 struct rk808_clkout {
-	struct rk808 *rk808;
+	struct rk8xx *rk8xx;
 	struct clk_onecell_data clk_data;
 	struct clk_hw		clkout1_hw;
 	struct clk_hw		clkout2_hw;
@@ -42,9 +42,9 @@ static int rk808_clkout2_enable(struct clk_hw *hw, bool enable)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
+	struct rk8xx *rk8xx = rk808_clkout->rk8xx;
 
-	return regmap_update_bits(rk808->regmap, RK808_CLK32OUT_REG,
+	return regmap_update_bits(rk8xx->regmap, RK808_CLK32OUT_REG,
 				  CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0);
 }
 
@@ -63,10 +63,10 @@ static int rk808_clkout2_is_prepared(struct clk_hw *hw)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
+	struct rk8xx *rk8xx = rk808_clkout->rk8xx;
 	uint32_t val;
 
-	int ret = regmap_read(rk808->regmap, RK808_CLK32OUT_REG, &val);
+	int ret = regmap_read(rk8xx->regmap, RK808_CLK32OUT_REG, &val);
 
 	if (ret < 0)
 		return ret;
@@ -87,8 +87,8 @@ static const struct clk_ops rk808_clkout2_ops = {
 
 static int rk808_clkout_probe(struct platform_device *pdev)
 {
-	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
-	struct i2c_client *client = rk808->i2c;
+	struct rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
+	struct i2c_client *client = rk8xx->i2c;
 	struct device_node *node = client->dev.of_node;
 	struct clk_init_data init = {};
 	struct clk **clk_table;
@@ -99,7 +99,7 @@ static int rk808_clkout_probe(struct platform_device *pdev)
 	if (!rk808_clkout)
 		return -ENOMEM;
 
-	rk808_clkout->rk808 = rk808;
+	rk808_clkout->rk8xx = rk8xx;
 
 	clk_table = devm_kcalloc(&client->dev, RK808_NR_OUTPUT,
 				 sizeof(struct clk *), GFP_KERNEL);
@@ -144,8 +144,8 @@ static int rk808_clkout_probe(struct platform_device *pdev)
 
 static int rk808_clkout_remove(struct platform_device *pdev)
 {
-	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
-	struct i2c_client *client = rk808->i2c;
+	struct rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
+	struct i2c_client *client = rk8xx->i2c;
 	struct device_node *node = client->dev.of_node;
 
 	of_clk_del_provider(node);
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 4b1e439..0386251 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -152,15 +152,15 @@ static struct i2c_client *rk808_i2c_client;
 static void rk808_device_shutdown(void)
 {
 	int ret;
-	struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
+	struct rk8xx *rk8xx = i2c_get_clientdata(rk808_i2c_client);
 
-	if (!rk808) {
+	if (!rk8xx) {
 		dev_warn(&rk808_i2c_client->dev,
 			 "have no rk808, so do nothing here\n");
 		return;
 	}
 
-	ret = regmap_update_bits(rk808->regmap,
+	ret = regmap_update_bits(rk8xx->regmap,
 				 RK808_DEVCTRL_REG,
 				 DEV_OFF_RST, DEV_OFF_RST);
 	if (ret)
@@ -171,7 +171,7 @@ static int rk808_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
 	struct device_node *np = client->dev.of_node;
-	struct rk808 *rk808;
+	struct rk8xx *rk8xx;
 	int pm_off = 0;
 	int ret;
 	int i;
@@ -181,18 +181,18 @@ static int rk808_probe(struct i2c_client *client,
 		return -EINVAL;
 	}
 
-	rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
-	if (!rk808)
+	rk8xx = devm_kzalloc(&client->dev, sizeof(*rk8xx), GFP_KERNEL);
+	if (!rk8xx)
 		return -ENOMEM;
 
-	rk808->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config);
-	if (IS_ERR(rk808->regmap)) {
+	rk8xx->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config);
+	if (IS_ERR(rk8xx->regmap)) {
 		dev_err(&client->dev, "regmap initialization failed\n");
-		return PTR_ERR(rk808->regmap);
+		return PTR_ERR(rk8xx->regmap);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(pre_init_reg); i++) {
-		ret = regmap_update_bits(rk808->regmap, pre_init_reg[i].addr,
+		ret = regmap_update_bits(rk8xx->regmap, pre_init_reg[i].addr,
 					 pre_init_reg[i].mask,
 					 pre_init_reg[i].value);
 		if (ret) {
@@ -202,20 +202,20 @@ static int rk808_probe(struct i2c_client *client,
 		}
 	}
 
-	ret = regmap_add_irq_chip(rk808->regmap, client->irq,
+	ret = regmap_add_irq_chip(rk8xx->regmap, client->irq,
 				  IRQF_ONESHOT, -1,
-				  &rk808_irq_chip, &rk808->irq_data);
+				  &rk808_irq_chip, &rk8xx->irq_data);
 	if (ret) {
 		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
 		return ret;
 	}
 
-	rk808->i2c = client;
-	i2c_set_clientdata(client, rk808);
+	rk8xx->i2c = client;
+	i2c_set_clientdata(client, rk8xx);
 
 	ret = mfd_add_devices(&client->dev, -1,
 			      rk808s, ARRAY_SIZE(rk808s),
-			      NULL, 0, regmap_irq_get_domain(rk808->irq_data));
+			      NULL, 0, regmap_irq_get_domain(rk8xx->irq_data));
 	if (ret) {
 		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
 		goto err_irq;
@@ -231,15 +231,15 @@ static int rk808_probe(struct i2c_client *client,
 	return 0;
 
 err_irq:
-	regmap_del_irq_chip(client->irq, rk808->irq_data);
+	regmap_del_irq_chip(client->irq, rk8xx->irq_data);
 	return ret;
 }
 
 static int rk808_remove(struct i2c_client *client)
 {
-	struct rk808 *rk808 = i2c_get_clientdata(client);
+	struct rk8xx *rk8xx = i2c_get_clientdata(client);
 
-	regmap_del_irq_chip(client->irq, rk808->irq_data);
+	regmap_del_irq_chip(client->irq, rk8xx->irq_data);
 	mfd_remove_devices(&client->dev);
 	pm_power_off = NULL;
 
diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index d86a3dc..37aaba9 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -568,8 +568,8 @@ dt_parse_end:
 
 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 rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
+	struct i2c_client *client = rk8xx->i2c;
 	struct regulator_config config = {};
 	struct regulator_dev *rk808_rdev;
 	struct rk808_regulator_data *pdata;
@@ -580,7 +580,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev,
-					     rk808->regmap, pdata);
+					     rk8xx->regmap, pdata);
 	if (ret < 0)
 		return ret;
 
@@ -594,7 +594,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 
 		config.dev = &client->dev;
 		config.driver_data = pdata;
-		config.regmap = rk808->regmap;
+		config.regmap = rk8xx->regmap;
 		config.of_node = rk808_reg_matches[i].of_node;
 		config.init_data = rk808_reg_matches[i].init_data;
 
diff --git a/drivers/rtc/rtc-rk808.c b/drivers/rtc/rtc-rk808.c
index 35c9aad..b3fe5a8 100644
--- a/drivers/rtc/rtc-rk808.c
+++ b/drivers/rtc/rtc-rk808.c
@@ -51,7 +51,7 @@
 #define NUM_ALARM_REGS	(RK808_ALARM_YEARS_REG - RK808_ALARM_SECONDS_REG + 1)
 
 struct rk808_rtc {
-	struct rk808 *rk808;
+	struct rk8xx *rk8xx;
 	struct rtc_device *rtc;
 	int irq;
 };
@@ -96,12 +96,12 @@ static void gregorian_to_rockchip(struct rtc_time *tm)
 static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
+	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
 	u8 rtc_data[NUM_TIME_REGS];
 	int ret;
 
 	/* Force an update of the shadowed registers right now */
-	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME);
 	if (ret) {
@@ -115,7 +115,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 	 * 32khz. If we clear the GET_TIME bit here, the time of i2c transfer
 	 * certainly more than 31.25us: 16 * 2.5us at 400kHz bus frequency.
 	 */
-	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
 				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
 				 0);
 	if (ret) {
@@ -123,7 +123,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 		return ret;
 	}
 
-	ret = regmap_bulk_read(rk808->regmap, RK808_SECONDS_REG,
+	ret = regmap_bulk_read(rk8xx->regmap, RK808_SECONDS_REG,
 			       rtc_data, NUM_TIME_REGS);
 	if (ret) {
 		dev_err(dev, "Failed to bulk read rtc_data: %d\n", ret);
@@ -149,7 +149,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
 static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
+	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
 	u8 rtc_data[NUM_TIME_REGS];
 	int ret;
 
@@ -166,7 +166,7 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	rtc_data[6] = bin2bcd(tm->tm_wday);
 
 	/* Stop RTC while updating the RTC registers */
-	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M);
 	if (ret) {
@@ -174,14 +174,14 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		return ret;
 	}
 
-	ret = regmap_bulk_write(rk808->regmap, RK808_SECONDS_REG,
+	ret = regmap_bulk_write(rk8xx->regmap, RK808_SECONDS_REG,
 				rtc_data, NUM_TIME_REGS);
 	if (ret) {
 		dev_err(dev, "Failed to bull write rtc_data: %d\n", ret);
 		return ret;
 	}
 	/* Start RTC again */
-	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M, 0);
 	if (ret) {
 		dev_err(dev, "Failed to update RTC control: %d\n", ret);
@@ -194,12 +194,12 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
+	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
 	u8 alrm_data[NUM_ALARM_REGS];
 	uint32_t int_reg;
 	int ret;
 
-	ret = regmap_bulk_read(rk808->regmap, RK808_ALARM_SECONDS_REG,
+	ret = regmap_bulk_read(rk8xx->regmap, RK808_ALARM_SECONDS_REG,
 			       alrm_data, NUM_ALARM_REGS);
 
 	alrm->time.tm_sec = bcd2bin(alrm_data[0] & SECONDS_REG_MSK);
@@ -210,7 +210,7 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm->time.tm_year = (bcd2bin(alrm_data[5] & YEARS_REG_MSK)) + 100;
 	rockchip_to_gregorian(&alrm->time);
 
-	ret = regmap_read(rk808->regmap, RK808_RTC_INT_REG, &int_reg);
+	ret = regmap_read(rk8xx->regmap, RK808_RTC_INT_REG, &int_reg);
 	if (ret) {
 		dev_err(dev, "Failed to read RTC INT REG: %d\n", ret);
 		return ret;
@@ -228,10 +228,10 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
 {
-	struct rk808 *rk808 = rk808_rtc->rk808;
+	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
 	int ret;
 
-	ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG,
+	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_INT_REG,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, 0);
 
 	return ret;
@@ -239,10 +239,10 @@ static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
 
 static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
 {
-	struct rk808 *rk808 = rk808_rtc->rk808;
+	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
 	int ret;
 
-	ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG,
+	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_INT_REG,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M,
 				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
 
@@ -252,7 +252,7 @@ static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
 static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
-	struct rk808 *rk808 = rk808_rtc->rk808;
+	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
 	u8 alrm_data[NUM_ALARM_REGS];
 	int ret;
 
@@ -274,7 +274,7 @@ static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	alrm_data[4] = bin2bcd(alrm->time.tm_mon + 1);
 	alrm_data[5] = bin2bcd(alrm->time.tm_year - 100);
 
-	ret = regmap_bulk_write(rk808->regmap, RK808_ALARM_SECONDS_REG,
+	ret = regmap_bulk_write(rk8xx->regmap, RK808_ALARM_SECONDS_REG,
 				alrm_data, NUM_ALARM_REGS);
 	if (ret) {
 		dev_err(dev, "Failed to bulk write: %d\n", ret);
@@ -314,11 +314,11 @@ static int rk808_rtc_alarm_irq_enable(struct device *dev,
 static irqreturn_t rk808_alarm_irq(int irq, void *data)
 {
 	struct rk808_rtc *rk808_rtc = data;
-	struct rk808 *rk808 = rk808_rtc->rk808;
-	struct i2c_client *client = rk808->i2c;
+	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
+	struct i2c_client *client = rk8xx->i2c;
 	int ret;
 
-	ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG,
+	ret = regmap_write(rk8xx->regmap, RK808_RTC_STATUS_REG,
 			   RTC_STATUS_MASK);
 	if (ret) {
 		dev_err(&client->dev,
@@ -373,7 +373,7 @@ static SIMPLE_DEV_PM_OPS(rk808_rtc_pm_ops,
 
 static int rk808_rtc_probe(struct platform_device *pdev)
 {
-	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
+	struct rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
 	struct rk808_rtc *rk808_rtc;
 	struct rtc_time tm;
 	int ret;
@@ -383,10 +383,10 @@ static int rk808_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	platform_set_drvdata(pdev, rk808_rtc);
-	rk808_rtc->rk808 = rk808;
+	rk808_rtc->rk8xx = rk8xx;
 
 	/* start rtc running by default, and use shadowed timer. */
-	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
+	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
 				 BIT_RTC_CTRL_REG_STOP_RTC_M |
 				 BIT_RTC_CTRL_REG_RTC_READSEL_M,
 				 BIT_RTC_CTRL_REG_RTC_READSEL_M);
@@ -396,7 +396,7 @@ static int rk808_rtc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG,
+	ret = regmap_write(rk8xx->regmap, RK808_RTC_STATUS_REG,
 			   RTC_STATUS_MASK);
 	if (ret) {
 		dev_err(&pdev->dev,
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index 441b6ee..117d79f 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -191,7 +191,7 @@ enum {
 	BOOST_ILMIN_250MA,
 };
 
-struct rk808 {
+struct rk8xx {
 	struct i2c_client *i2c;
 	struct regmap_irq_chip_data *irq_data;
 	struct regmap *regmap;
-- 
1.9.1

Re: [PATCH v2 1/7] drivers: mfd: rk808: rename rk808 struct to rk8xx

[Alexandre Belloni]

On 21/04/2016 at 15:12:35 +0200, Wadim Egorov wrote :
> This patch renames the rk808 struct. So it is more clear that this
> struct can be shared between all RK8XX related PMIC drivers.
> 

I'm still thinking this is unnecessary and that the rk8xx will become
more confusing that rx808 in the future.

If rx8xx needed to be different from rk808, I'd have a different opinion
but that is not the case here.

> Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
> ---
>  drivers/clk/clk-rk808.c             | 20 +++++++--------
>  drivers/mfd/rk808.c                 | 36 +++++++++++++-------------
>  drivers/regulator/rk808-regulator.c |  8 +++---
>  drivers/rtc/rtc-rk808.c             | 50 ++++++++++++++++++-------------------
>  include/linux/mfd/rk808.h           |  2 +-
>  5 files changed, 58 insertions(+), 58 deletions(-)
> 
> diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
> index 0fee2f4..6df2e72 100644
> --- a/drivers/clk/clk-rk808.c
> +++ b/drivers/clk/clk-rk808.c
> @@ -25,7 +25,7 @@
>  #define RK808_NR_OUTPUT 2
>  
>  struct rk808_clkout {
> -	struct rk808 *rk808;
> +	struct rk8xx *rk8xx;
>  	struct clk_onecell_data clk_data;
>  	struct clk_hw		clkout1_hw;
>  	struct clk_hw		clkout2_hw;
> @@ -42,9 +42,9 @@ static int rk808_clkout2_enable(struct clk_hw *hw, bool enable)
>  	struct rk808_clkout *rk808_clkout = container_of(hw,
>  							 struct rk808_clkout,
>  							 clkout2_hw);
> -	struct rk808 *rk808 = rk808_clkout->rk808;
> +	struct rk8xx *rk8xx = rk808_clkout->rk8xx;
>  
> -	return regmap_update_bits(rk808->regmap, RK808_CLK32OUT_REG,
> +	return regmap_update_bits(rk8xx->regmap, RK808_CLK32OUT_REG,
>  				  CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0);
>  }
>  
> @@ -63,10 +63,10 @@ static int rk808_clkout2_is_prepared(struct clk_hw *hw)
>  	struct rk808_clkout *rk808_clkout = container_of(hw,
>  							 struct rk808_clkout,
>  							 clkout2_hw);
> -	struct rk808 *rk808 = rk808_clkout->rk808;
> +	struct rk8xx *rk8xx = rk808_clkout->rk8xx;
>  	uint32_t val;
>  
> -	int ret = regmap_read(rk808->regmap, RK808_CLK32OUT_REG, &val);
> +	int ret = regmap_read(rk8xx->regmap, RK808_CLK32OUT_REG, &val);
>  
>  	if (ret < 0)
>  		return ret;
> @@ -87,8 +87,8 @@ static const struct clk_ops rk808_clkout2_ops = {
>  
>  static int rk808_clkout_probe(struct platform_device *pdev)
>  {
> -	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
> -	struct i2c_client *client = rk808->i2c;
> +	struct rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
> +	struct i2c_client *client = rk8xx->i2c;
>  	struct device_node *node = client->dev.of_node;
>  	struct clk_init_data init = {};
>  	struct clk **clk_table;
> @@ -99,7 +99,7 @@ static int rk808_clkout_probe(struct platform_device *pdev)
>  	if (!rk808_clkout)
>  		return -ENOMEM;
>  
> -	rk808_clkout->rk808 = rk808;
> +	rk808_clkout->rk8xx = rk8xx;
>  
>  	clk_table = devm_kcalloc(&client->dev, RK808_NR_OUTPUT,
>  				 sizeof(struct clk *), GFP_KERNEL);
> @@ -144,8 +144,8 @@ static int rk808_clkout_probe(struct platform_device *pdev)
>  
>  static int rk808_clkout_remove(struct platform_device *pdev)
>  {
> -	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
> -	struct i2c_client *client = rk808->i2c;
> +	struct rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
> +	struct i2c_client *client = rk8xx->i2c;
>  	struct device_node *node = client->dev.of_node;
>  
>  	of_clk_del_provider(node);
> diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
> index 4b1e439..0386251 100644
> --- a/drivers/mfd/rk808.c
> +++ b/drivers/mfd/rk808.c
> @@ -152,15 +152,15 @@ static struct i2c_client *rk808_i2c_client;
>  static void rk808_device_shutdown(void)
>  {
>  	int ret;
> -	struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
> +	struct rk8xx *rk8xx = i2c_get_clientdata(rk808_i2c_client);
>  
> -	if (!rk808) {
> +	if (!rk8xx) {
>  		dev_warn(&rk808_i2c_client->dev,
>  			 "have no rk808, so do nothing here\n");
>  		return;
>  	}
>  
> -	ret = regmap_update_bits(rk808->regmap,
> +	ret = regmap_update_bits(rk8xx->regmap,
>  				 RK808_DEVCTRL_REG,
>  				 DEV_OFF_RST, DEV_OFF_RST);
>  	if (ret)
> @@ -171,7 +171,7 @@ static int rk808_probe(struct i2c_client *client,
>  		       const struct i2c_device_id *id)
>  {
>  	struct device_node *np = client->dev.of_node;
> -	struct rk808 *rk808;
> +	struct rk8xx *rk8xx;
>  	int pm_off = 0;
>  	int ret;
>  	int i;
> @@ -181,18 +181,18 @@ static int rk808_probe(struct i2c_client *client,
>  		return -EINVAL;
>  	}
>  
> -	rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
> -	if (!rk808)
> +	rk8xx = devm_kzalloc(&client->dev, sizeof(*rk8xx), GFP_KERNEL);
> +	if (!rk8xx)
>  		return -ENOMEM;
>  
> -	rk808->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config);
> -	if (IS_ERR(rk808->regmap)) {
> +	rk8xx->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config);
> +	if (IS_ERR(rk8xx->regmap)) {
>  		dev_err(&client->dev, "regmap initialization failed\n");
> -		return PTR_ERR(rk808->regmap);
> +		return PTR_ERR(rk8xx->regmap);
>  	}
>  
>  	for (i = 0; i < ARRAY_SIZE(pre_init_reg); i++) {
> -		ret = regmap_update_bits(rk808->regmap, pre_init_reg[i].addr,
> +		ret = regmap_update_bits(rk8xx->regmap, pre_init_reg[i].addr,
>  					 pre_init_reg[i].mask,
>  					 pre_init_reg[i].value);
>  		if (ret) {
> @@ -202,20 +202,20 @@ static int rk808_probe(struct i2c_client *client,
>  		}
>  	}
>  
> -	ret = regmap_add_irq_chip(rk808->regmap, client->irq,
> +	ret = regmap_add_irq_chip(rk8xx->regmap, client->irq,
>  				  IRQF_ONESHOT, -1,
> -				  &rk808_irq_chip, &rk808->irq_data);
> +				  &rk808_irq_chip, &rk8xx->irq_data);
>  	if (ret) {
>  		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
>  		return ret;
>  	}
>  
> -	rk808->i2c = client;
> -	i2c_set_clientdata(client, rk808);
> +	rk8xx->i2c = client;
> +	i2c_set_clientdata(client, rk8xx);
>  
>  	ret = mfd_add_devices(&client->dev, -1,
>  			      rk808s, ARRAY_SIZE(rk808s),
> -			      NULL, 0, regmap_irq_get_domain(rk808->irq_data));
> +			      NULL, 0, regmap_irq_get_domain(rk8xx->irq_data));
>  	if (ret) {
>  		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
>  		goto err_irq;
> @@ -231,15 +231,15 @@ static int rk808_probe(struct i2c_client *client,
>  	return 0;
>  
>  err_irq:
> -	regmap_del_irq_chip(client->irq, rk808->irq_data);
> +	regmap_del_irq_chip(client->irq, rk8xx->irq_data);
>  	return ret;
>  }
>  
>  static int rk808_remove(struct i2c_client *client)
>  {
> -	struct rk808 *rk808 = i2c_get_clientdata(client);
> +	struct rk8xx *rk8xx = i2c_get_clientdata(client);
>  
> -	regmap_del_irq_chip(client->irq, rk808->irq_data);
> +	regmap_del_irq_chip(client->irq, rk8xx->irq_data);
>  	mfd_remove_devices(&client->dev);
>  	pm_power_off = NULL;
>  
> diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
> index d86a3dc..37aaba9 100644
> --- a/drivers/regulator/rk808-regulator.c
> +++ b/drivers/regulator/rk808-regulator.c
> @@ -568,8 +568,8 @@ dt_parse_end:
>  
>  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 rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
> +	struct i2c_client *client = rk8xx->i2c;
>  	struct regulator_config config = {};
>  	struct regulator_dev *rk808_rdev;
>  	struct rk808_regulator_data *pdata;
> @@ -580,7 +580,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
>  		return -ENOMEM;
>  
>  	ret = rk808_regulator_dt_parse_pdata(&pdev->dev, &client->dev,
> -					     rk808->regmap, pdata);
> +					     rk8xx->regmap, pdata);
>  	if (ret < 0)
>  		return ret;
>  
> @@ -594,7 +594,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
>  
>  		config.dev = &client->dev;
>  		config.driver_data = pdata;
> -		config.regmap = rk808->regmap;
> +		config.regmap = rk8xx->regmap;
>  		config.of_node = rk808_reg_matches[i].of_node;
>  		config.init_data = rk808_reg_matches[i].init_data;
>  
> diff --git a/drivers/rtc/rtc-rk808.c b/drivers/rtc/rtc-rk808.c
> index 35c9aad..b3fe5a8 100644
> --- a/drivers/rtc/rtc-rk808.c
> +++ b/drivers/rtc/rtc-rk808.c
> @@ -51,7 +51,7 @@
>  #define NUM_ALARM_REGS	(RK808_ALARM_YEARS_REG - RK808_ALARM_SECONDS_REG + 1)
>  
>  struct rk808_rtc {
> -	struct rk808 *rk808;
> +	struct rk8xx *rk8xx;
>  	struct rtc_device *rtc;
>  	int irq;
>  };
> @@ -96,12 +96,12 @@ static void gregorian_to_rockchip(struct rtc_time *tm)
>  static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
>  {
>  	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
> -	struct rk808 *rk808 = rk808_rtc->rk808;
> +	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
>  	u8 rtc_data[NUM_TIME_REGS];
>  	int ret;
>  
>  	/* Force an update of the shadowed registers right now */
> -	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
> +	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
>  				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
>  				 BIT_RTC_CTRL_REG_RTC_GET_TIME);
>  	if (ret) {
> @@ -115,7 +115,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
>  	 * 32khz. If we clear the GET_TIME bit here, the time of i2c transfer
>  	 * certainly more than 31.25us: 16 * 2.5us at 400kHz bus frequency.
>  	 */
> -	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
> +	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
>  				 BIT_RTC_CTRL_REG_RTC_GET_TIME,
>  				 0);
>  	if (ret) {
> @@ -123,7 +123,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
>  		return ret;
>  	}
>  
> -	ret = regmap_bulk_read(rk808->regmap, RK808_SECONDS_REG,
> +	ret = regmap_bulk_read(rk8xx->regmap, RK808_SECONDS_REG,
>  			       rtc_data, NUM_TIME_REGS);
>  	if (ret) {
>  		dev_err(dev, "Failed to bulk read rtc_data: %d\n", ret);
> @@ -149,7 +149,7 @@ static int rk808_rtc_readtime(struct device *dev, struct rtc_time *tm)
>  static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
>  {
>  	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
> -	struct rk808 *rk808 = rk808_rtc->rk808;
> +	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
>  	u8 rtc_data[NUM_TIME_REGS];
>  	int ret;
>  
> @@ -166,7 +166,7 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
>  	rtc_data[6] = bin2bcd(tm->tm_wday);
>  
>  	/* Stop RTC while updating the RTC registers */
> -	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
> +	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
>  				 BIT_RTC_CTRL_REG_STOP_RTC_M,
>  				 BIT_RTC_CTRL_REG_STOP_RTC_M);
>  	if (ret) {
> @@ -174,14 +174,14 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
>  		return ret;
>  	}
>  
> -	ret = regmap_bulk_write(rk808->regmap, RK808_SECONDS_REG,
> +	ret = regmap_bulk_write(rk8xx->regmap, RK808_SECONDS_REG,
>  				rtc_data, NUM_TIME_REGS);
>  	if (ret) {
>  		dev_err(dev, "Failed to bull write rtc_data: %d\n", ret);
>  		return ret;
>  	}
>  	/* Start RTC again */
> -	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
> +	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
>  				 BIT_RTC_CTRL_REG_STOP_RTC_M, 0);
>  	if (ret) {
>  		dev_err(dev, "Failed to update RTC control: %d\n", ret);
> @@ -194,12 +194,12 @@ static int rk808_rtc_set_time(struct device *dev, struct rtc_time *tm)
>  static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
>  {
>  	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
> -	struct rk808 *rk808 = rk808_rtc->rk808;
> +	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
>  	u8 alrm_data[NUM_ALARM_REGS];
>  	uint32_t int_reg;
>  	int ret;
>  
> -	ret = regmap_bulk_read(rk808->regmap, RK808_ALARM_SECONDS_REG,
> +	ret = regmap_bulk_read(rk8xx->regmap, RK808_ALARM_SECONDS_REG,
>  			       alrm_data, NUM_ALARM_REGS);
>  
>  	alrm->time.tm_sec = bcd2bin(alrm_data[0] & SECONDS_REG_MSK);
> @@ -210,7 +210,7 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
>  	alrm->time.tm_year = (bcd2bin(alrm_data[5] & YEARS_REG_MSK)) + 100;
>  	rockchip_to_gregorian(&alrm->time);
>  
> -	ret = regmap_read(rk808->regmap, RK808_RTC_INT_REG, &int_reg);
> +	ret = regmap_read(rk8xx->regmap, RK808_RTC_INT_REG, &int_reg);
>  	if (ret) {
>  		dev_err(dev, "Failed to read RTC INT REG: %d\n", ret);
>  		return ret;
> @@ -228,10 +228,10 @@ static int rk808_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
>  
>  static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
>  {
> -	struct rk808 *rk808 = rk808_rtc->rk808;
> +	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
>  	int ret;
>  
> -	ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG,
> +	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_INT_REG,
>  				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M, 0);
>  
>  	return ret;
> @@ -239,10 +239,10 @@ static int rk808_rtc_stop_alarm(struct rk808_rtc *rk808_rtc)
>  
>  static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
>  {
> -	struct rk808 *rk808 = rk808_rtc->rk808;
> +	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
>  	int ret;
>  
> -	ret = regmap_update_bits(rk808->regmap, RK808_RTC_INT_REG,
> +	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_INT_REG,
>  				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M,
>  				 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
>  
> @@ -252,7 +252,7 @@ static int rk808_rtc_start_alarm(struct rk808_rtc *rk808_rtc)
>  static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
>  {
>  	struct rk808_rtc *rk808_rtc = dev_get_drvdata(dev);
> -	struct rk808 *rk808 = rk808_rtc->rk808;
> +	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
>  	u8 alrm_data[NUM_ALARM_REGS];
>  	int ret;
>  
> @@ -274,7 +274,7 @@ static int rk808_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
>  	alrm_data[4] = bin2bcd(alrm->time.tm_mon + 1);
>  	alrm_data[5] = bin2bcd(alrm->time.tm_year - 100);
>  
> -	ret = regmap_bulk_write(rk808->regmap, RK808_ALARM_SECONDS_REG,
> +	ret = regmap_bulk_write(rk8xx->regmap, RK808_ALARM_SECONDS_REG,
>  				alrm_data, NUM_ALARM_REGS);
>  	if (ret) {
>  		dev_err(dev, "Failed to bulk write: %d\n", ret);
> @@ -314,11 +314,11 @@ static int rk808_rtc_alarm_irq_enable(struct device *dev,
>  static irqreturn_t rk808_alarm_irq(int irq, void *data)
>  {
>  	struct rk808_rtc *rk808_rtc = data;
> -	struct rk808 *rk808 = rk808_rtc->rk808;
> -	struct i2c_client *client = rk808->i2c;
> +	struct rk8xx *rk8xx = rk808_rtc->rk8xx;
> +	struct i2c_client *client = rk8xx->i2c;
>  	int ret;
>  
> -	ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG,
> +	ret = regmap_write(rk8xx->regmap, RK808_RTC_STATUS_REG,
>  			   RTC_STATUS_MASK);
>  	if (ret) {
>  		dev_err(&client->dev,
> @@ -373,7 +373,7 @@ static SIMPLE_DEV_PM_OPS(rk808_rtc_pm_ops,
>  
>  static int rk808_rtc_probe(struct platform_device *pdev)
>  {
> -	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
> +	struct rk8xx *rk8xx = dev_get_drvdata(pdev->dev.parent);
>  	struct rk808_rtc *rk808_rtc;
>  	struct rtc_time tm;
>  	int ret;
> @@ -383,10 +383,10 @@ static int rk808_rtc_probe(struct platform_device *pdev)
>  		return -ENOMEM;
>  
>  	platform_set_drvdata(pdev, rk808_rtc);
> -	rk808_rtc->rk808 = rk808;
> +	rk808_rtc->rk8xx = rk8xx;
>  
>  	/* start rtc running by default, and use shadowed timer. */
> -	ret = regmap_update_bits(rk808->regmap, RK808_RTC_CTRL_REG,
> +	ret = regmap_update_bits(rk8xx->regmap, RK808_RTC_CTRL_REG,
>  				 BIT_RTC_CTRL_REG_STOP_RTC_M |
>  				 BIT_RTC_CTRL_REG_RTC_READSEL_M,
>  				 BIT_RTC_CTRL_REG_RTC_READSEL_M);
> @@ -396,7 +396,7 @@ static int rk808_rtc_probe(struct platform_device *pdev)
>  		return ret;
>  	}
>  
> -	ret = regmap_write(rk808->regmap, RK808_RTC_STATUS_REG,
> +	ret = regmap_write(rk8xx->regmap, RK808_RTC_STATUS_REG,
>  			   RTC_STATUS_MASK);
>  	if (ret) {
>  		dev_err(&pdev->dev,
> diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
> index 441b6ee..117d79f 100644
> --- a/include/linux/mfd/rk808.h
> +++ b/include/linux/mfd/rk808.h
> @@ -191,7 +191,7 @@ enum {
>  	BOOST_ILMIN_250MA,
>  };
>  
> -struct rk808 {
> +struct rk8xx {
>  	struct i2c_client *i2c;
>  	struct regmap_irq_chip_data *irq_data;
>  	struct regmap *regmap;
> -- 
> 1.9.1
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[PATCH v2 2/7] mfd: RK808: Add RK818 support

[Wadim Egorov]

The RK818 chip is a power management IC for multimedia and handheld
devices. It contains the following components:

- Regulators
- RTC
- Clkout
- battery support

Both chips RK808 and RK818 are using a similar register map.
So we can reuse the RTC and Clkout functionality.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
---
 drivers/mfd/Kconfig       |   4 +-
 drivers/mfd/rk808.c       | 227 +++++++++++++++++++++++++++++++++++++++-------
 include/linux/mfd/rk808.h | 162 +++++++++++++++++++++++++++++++--
 3 files changed, 348 insertions(+), 45 deletions(-)

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index eea61e3..0a5b1c0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -814,13 +814,13 @@ config MFD_RC5T583
 	  different functionality of the device.
 
 config MFD_RK808
-	tristate "Rockchip RK808 Power Management chip"
+	tristate "Rockchip RK808/RK818 Power Management chip"
 	depends on I2C && OF
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
 	help
-	  If you say yes here you get support for the RK808
+	  If you say yes here you get support for the RK808 and RK818
 	  Power Management chips.
 	  This driver provides common support for accessing the device
 	  through I2C interface. The device supports multiple sub-devices
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 0386251..8ced05e 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -6,6 +6,10 @@
  * 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>
+ *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
@@ -22,12 +26,7 @@
 #include <linux/mfd/core.h>
 #include <linux/module.h>
 #include <linux/regmap.h>
-
-struct rk808_reg_data {
-	int addr;
-	int mask;
-	int value;
-};
+#include <linux/of_device.h>
 
 static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
 {
@@ -57,6 +56,14 @@ static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
 	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 rk808_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
@@ -83,7 +90,17 @@ static const struct mfd_cell rk808s[] = {
 	},
 };
 
-static const struct rk808_reg_data pre_init_reg[] = {
+static const struct mfd_cell rk818s[] = {
+	{ .name = "rk808-clkout", },
+	{ .name = "rk808-regulator", },
+	{
+		.name = "rk808-rtc",
+		.num_resources = ARRAY_SIZE(rtc_resources),
+		.resources = &rtc_resources[0],
+	},
+};
+
+static const struct rk8xx_reg_data rk808_pre_init_reg[] = {
 	{ RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_150MA },
 	{ RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_200MA },
 	{ RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
@@ -94,6 +111,22 @@ static const struct rk808_reg_data pre_init_reg[] = {
 						    VB_LO_SEL_3500MV },
 };
 
+static const struct rk8xx_reg_data rk818_pre_init_reg[] = {
+	{ RK818_USB_CTRL_REG,	RK818_USB_ILIM_SEL_MASK,
+						RK818_USB_ILMIN_2000MA },
+	/* close charger when usb lower then 3.4V */
+	{ RK818_USB_CTRL_REG,	RK818_USB_CHG_SD_VSEL_MASK, (0x7 << 4) },
+	/* no action when vref */
+	{ RK818_H5V_EN_REG,	BIT(1),		RK818_REF_RDY_CTRL },
+	/* enable HDMI 5V */
+	{ RK818_H5V_EN_REG,	BIT(0),		RK818_H5V_EN },
+	/* improve efficiency */
+	{ RK818_BUCK2_CONFIG_REG, BUCK2_RATE_MASK,	BUCK_ILMIN_250MA },
+	{ RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK,	BUCK_ILMIN_250MA },
+	{ RK818_BOOST_CONFIG_REG, BOOST_ILMIN_MASK,	BOOST_ILMIN_100MA },
+	{ RK808_VB_MON_REG,	MASK_ALL,	VB_LO_ACT | VB_LO_SEL_3500MV },
+};
+
 static const struct regmap_irq rk808_irqs[] = {
 	/* INT_STS */
 	[RK808_IRQ_VOUT_LO] = {
@@ -136,6 +169,76 @@ static const struct regmap_irq rk808_irqs[] = {
 	},
 };
 
+static const struct regmap_irq rk818_irqs[] = {
+	/* INT_STS */
+	[RK818_IRQ_VOUT_LO] = {
+		.mask = RK818_IRQ_VOUT_LO_MSK,
+		.reg_offset = 0,
+	},
+	[RK818_IRQ_VB_LO] = {
+		.mask = RK818_IRQ_VB_LO_MSK,
+		.reg_offset = 0,
+	},
+	[RK818_IRQ_PWRON] = {
+		.mask = RK818_IRQ_PWRON_MSK,
+		.reg_offset = 0,
+	},
+	[RK818_IRQ_PWRON_LP] = {
+		.mask = RK818_IRQ_PWRON_LP_MSK,
+		.reg_offset = 0,
+	},
+	[RK818_IRQ_HOTDIE] = {
+		.mask = RK818_IRQ_HOTDIE_MSK,
+		.reg_offset = 0,
+	},
+	[RK818_IRQ_RTC_ALARM] = {
+		.mask = RK818_IRQ_RTC_ALARM_MSK,
+		.reg_offset = 0,
+	},
+	[RK818_IRQ_RTC_PERIOD] = {
+		.mask = RK818_IRQ_RTC_PERIOD_MSK,
+		.reg_offset = 0,
+	},
+	[RK818_IRQ_USB_OV] = {
+		.mask = RK818_IRQ_USB_OV_MSK,
+		.reg_offset = 0,
+	},
+
+	/* INT_STS2 */
+	[RK818_IRQ_PLUG_IN] = {
+		.mask = RK818_IRQ_PLUG_IN_MSK,
+		.reg_offset = 1,
+	},
+	[RK818_IRQ_PLUG_OUT] = {
+		.mask = RK818_IRQ_PLUG_OUT_MSK,
+		.reg_offset = 1,
+	},
+	[RK818_IRQ_CHG_OK] = {
+		.mask = RK818_IRQ_CHG_OK_MSK,
+		.reg_offset = 1,
+	},
+	[RK818_IRQ_CHG_TE] = {
+		.mask = RK818_IRQ_CHG_TE_MSK,
+		.reg_offset = 1,
+	},
+	[RK818_IRQ_CHG_TS1] = {
+		.mask = RK818_IRQ_CHG_TS1_MSK,
+		.reg_offset = 1,
+	},
+	[RK818_IRQ_TS2] = {
+		.mask = RK818_IRQ_TS2_MSK,
+		.reg_offset = 1,
+	},
+	[RK818_IRQ_CHG_CVTLIM] = {
+		.mask = RK818_IRQ_CHG_CVTLIM_MSK,
+		.reg_offset = 1,
+	},
+	[RK818_IRQ_DISCHG_ILIM] = {
+		.mask = RK818_IRQ_DISCHG_ILIM_MSK,
+		.reg_offset = 1,
+	},
+};
+
 static struct regmap_irq_chip rk808_irq_chip = {
 	.name = "rk808",
 	.irqs = rk808_irqs,
@@ -148,6 +251,18 @@ static struct regmap_irq_chip rk808_irq_chip = {
 	.init_ack_masked = true,
 };
 
+static struct regmap_irq_chip rk818_irq_chip = {
+	.name = "rk818",
+	.irqs = rk818_irqs,
+	.num_irqs = ARRAY_SIZE(rk818_irqs),
+	.num_regs = 2,
+	.irq_reg_stride = 2,
+	.status_base = RK818_INT_STS_REG1,
+	.mask_base = RK818_INT_STS_MSK_REG1,
+	.ack_base = RK818_INT_STS_REG1,
+	.init_ack_masked = true,
+};
+
 static struct i2c_client *rk808_i2c_client;
 static void rk808_device_shutdown(void)
 {
@@ -167,6 +282,48 @@ static void rk808_device_shutdown(void)
 		dev_err(&rk808_i2c_client->dev, "power off error!\n");
 }
 
+static const struct of_device_id rk808_of_match[] = {
+	{ .compatible = "rockchip,rk808", .data = (void *) RK808_ID },
+	{ .compatible = "rockchip,rk818", .data = (void *) RK818_ID },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, rk808_of_match);
+
+static int rk8xx_match_device(struct rk8xx *rk8xx, struct device *dev)
+{
+	const struct of_device_id *of_id;
+
+	of_id = of_match_device(rk808_of_match, dev);
+	if (!of_id) {
+		dev_err(dev, "Unable to match OF ID\n");
+		return -ENODEV;
+	}
+	rk8xx->variant = (long) of_id->data;
+
+	switch (rk8xx->variant) {
+	case RK808_ID:
+		rk8xx->nr_cells = ARRAY_SIZE(rk808s);
+		rk8xx->cells = rk808s;
+		rk8xx->regmap_cfg = &rk808_regmap_config;
+		rk8xx->regmap_irq_chip = &rk808_irq_chip;
+		rk8xx->pre_init_reg = rk808_pre_init_reg;
+		rk8xx->nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg);
+		break;
+	case RK818_ID:
+		rk8xx->nr_cells = ARRAY_SIZE(rk818s);
+		rk8xx->cells = rk818s;
+		rk8xx->regmap_cfg = &rk818_regmap_config;
+		rk8xx->regmap_irq_chip = &rk818_irq_chip;
+		rk8xx->pre_init_reg = rk818_pre_init_reg;
+		rk8xx->nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
+		break;
+	default:
+		dev_err(dev, "unsupported RK8XX ID %lu\n", rk8xx->variant);
+		return -EINVAL;
+	}
+
+	return 0;
+}
 static int rk808_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
@@ -176,45 +333,51 @@ static int rk808_probe(struct i2c_client *client,
 	int ret;
 	int i;
 
-	if (!client->irq) {
-		dev_err(&client->dev, "No interrupt support, no core IRQ\n");
-		return -EINVAL;
-	}
-
 	rk8xx = devm_kzalloc(&client->dev, sizeof(*rk8xx), GFP_KERNEL);
 	if (!rk8xx)
 		return -ENOMEM;
 
-	rk8xx->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config);
+	ret = rk8xx_match_device(rk8xx, &client->dev);
+	if (ret)
+		return ret;
+
+	rk8xx->i2c = client;
+	i2c_set_clientdata(client, rk8xx);
+
+	rk8xx->regmap = devm_regmap_init_i2c(client, rk8xx->regmap_cfg);
 	if (IS_ERR(rk8xx->regmap)) {
 		dev_err(&client->dev, "regmap initialization failed\n");
 		return PTR_ERR(rk8xx->regmap);
 	}
 
-	for (i = 0; i < ARRAY_SIZE(pre_init_reg); i++) {
-		ret = regmap_update_bits(rk8xx->regmap, pre_init_reg[i].addr,
-					 pre_init_reg[i].mask,
-					 pre_init_reg[i].value);
-		if (ret) {
-			dev_err(&client->dev,
-				"0x%x write err\n", pre_init_reg[i].addr);
-			return ret;
-		}
+	if (!client->irq) {
+		dev_err(&client->dev, "No interrupt support, no core IRQ\n");
+		return -EINVAL;
 	}
 
 	ret = regmap_add_irq_chip(rk8xx->regmap, client->irq,
 				  IRQF_ONESHOT, -1,
-				  &rk808_irq_chip, &rk8xx->irq_data);
+				  rk8xx->regmap_irq_chip, &rk8xx->irq_data);
 	if (ret) {
 		dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
 		return ret;
 	}
 
-	rk8xx->i2c = client;
-	i2c_set_clientdata(client, rk8xx);
+	for (i = 0; i < rk8xx->nr_pre_init_regs; i++) {
+		ret = regmap_update_bits(rk8xx->regmap,
+					rk8xx->pre_init_reg[i].addr,
+					rk8xx->pre_init_reg[i].mask,
+					rk8xx->pre_init_reg[i].value);
+		if (ret) {
+			dev_err(&client->dev,
+				"0x%x write err\n",
+				rk8xx->pre_init_reg[i].addr);
+			return ret;
+		}
+	}
 
-	ret = mfd_add_devices(&client->dev, -1,
-			      rk808s, ARRAY_SIZE(rk808s),
+	ret = mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
+			      rk8xx->cells, rk8xx->nr_cells,
 			      NULL, 0, regmap_irq_get_domain(rk8xx->irq_data));
 	if (ret) {
 		dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
@@ -246,14 +409,9 @@ static int rk808_remove(struct i2c_client *client)
 	return 0;
 }
 
-static const struct of_device_id rk808_of_match[] = {
-	{ .compatible = "rockchip,rk808" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, rk808_of_match);
-
 static const struct i2c_device_id rk808_ids[] = {
 	{ "rk808" },
+	{ "rk818" },
 	{ },
 };
 MODULE_DEVICE_TABLE(i2c, rk808_ids);
@@ -273,4 +431,5 @@ module_i2c_driver(rk808_i2c_driver);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
 MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
-MODULE_DESCRIPTION("RK808 PMIC driver");
+MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
+MODULE_DESCRIPTION("RK8XX PMIC driver");
diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
index 117d79f..daba81a 100644
--- a/include/linux/mfd/rk808.h
+++ b/include/linux/mfd/rk808.h
@@ -1,11 +1,15 @@
 /*
- * rk808.h for Rockchip RK808
+ * Register definitions for Rockchip's RK8XX PMIC family
  *
  * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
  *
  * 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>
+ *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
@@ -16,8 +20,8 @@
  * more details.
  */
 
-#ifndef __LINUX_REGULATOR_rk808_H
-#define __LINUX_REGULATOR_rk808_H
+#ifndef __LINUX_REGULATOR_RK8XX_H
+#define __LINUX_REGULATOR_RK8XX_H
 
 #include <linux/regulator/machine.h>
 #include <linux/regmap.h>
@@ -28,7 +32,7 @@
 
 #define RK808_DCDC1	0 /* (0+RK808_START) */
 #define RK808_LDO1	4 /* (4+RK808_START) */
-#define RK808_NUM_REGULATORS   14
+#define RK808_NUM_REGULATORS	14
 
 enum rk808_reg {
 	RK808_ID_DCDC1,
@@ -115,7 +119,92 @@ enum rk808_reg {
 #define RK808_INT_STS_MSK_REG2	0x4f
 #define RK808_IO_POL_REG	0x50
 
-/* IRQ Definitions */
+/* RK818 */
+#define RK818_DCDC1			0
+#define RK818_LDO1			4
+#define RK818_NUM_REGULATORS		17
+
+enum rk818_reg {
+	RK818_ID_DCDC1,
+	RK818_ID_DCDC2,
+	RK818_ID_DCDC3,
+	RK818_ID_DCDC4,
+	RK818_ID_BOOST,
+	RK818_ID_LDO1,
+	RK818_ID_LDO2,
+	RK818_ID_LDO3,
+	RK818_ID_LDO4,
+	RK818_ID_LDO5,
+	RK818_ID_LDO6,
+	RK818_ID_LDO7,
+	RK818_ID_LDO8,
+	RK818_ID_LDO9,
+	RK818_ID_SWITCH,
+	RK818_ID_HDMI_SWITCH,
+	RK818_ID_OTG_SWITCH,
+};
+
+#define RK818_DCDC_EN_REG		0x23
+#define RK818_LDO_EN_REG		0x24
+#define RK818_SLEEP_SET_OFF_REG1	0x25
+#define RK818_SLEEP_SET_OFF_REG2	0x26
+#define RK818_DCDC_UV_STS_REG		0x27
+#define RK818_DCDC_UV_ACT_REG		0x28
+#define RK818_LDO_UV_STS_REG		0x29
+#define RK818_LDO_UV_ACT_REG		0x2a
+#define RK818_DCDC_PG_REG		0x2b
+#define RK818_LDO_PG_REG		0x2c
+#define RK818_VOUT_MON_TDB_REG		0x2d
+#define RK818_BUCK1_CONFIG_REG		0x2e
+#define RK818_BUCK1_ON_VSEL_REG		0x2f
+#define RK818_BUCK1_SLP_VSEL_REG	0x30
+#define RK818_BUCK2_CONFIG_REG		0x32
+#define RK818_BUCK2_ON_VSEL_REG		0x33
+#define RK818_BUCK2_SLP_VSEL_REG	0x34
+#define RK818_BUCK3_CONFIG_REG		0x36
+#define RK818_BUCK4_CONFIG_REG		0x37
+#define RK818_BUCK4_ON_VSEL_REG		0x38
+#define RK818_BUCK4_SLP_VSEL_REG	0x39
+#define RK818_BOOST_CONFIG_REG		0x3a
+#define RK818_LDO1_ON_VSEL_REG		0x3b
+#define RK818_LDO1_SLP_VSEL_REG		0x3c
+#define RK818_LDO2_ON_VSEL_REG		0x3d
+#define RK818_LDO2_SLP_VSEL_REG		0x3e
+#define RK818_LDO3_ON_VSEL_REG		0x3f
+#define RK818_LDO3_SLP_VSEL_REG		0x40
+#define RK818_LDO4_ON_VSEL_REG		0x41
+#define RK818_LDO4_SLP_VSEL_REG		0x42
+#define RK818_LDO5_ON_VSEL_REG		0x43
+#define RK818_LDO5_SLP_VSEL_REG		0x44
+#define RK818_LDO6_ON_VSEL_REG		0x45
+#define RK818_LDO6_SLP_VSEL_REG		0x46
+#define RK818_LDO7_ON_VSEL_REG		0x47
+#define RK818_LDO7_SLP_VSEL_REG		0x48
+#define RK818_LDO8_ON_VSEL_REG		0x49
+#define RK818_LDO8_SLP_VSEL_REG		0x4a
+#define RK818_BOOST_LDO9_ON_VSEL_REG	0x54
+#define RK818_BOOST_LDO9_SLP_VSEL_REG	0x55
+#define RK818_DEVCTRL_REG		0x4b
+#define RK818_INT_STS_REG1		0X4c
+#define RK818_INT_STS_MSK_REG1		0x4d
+#define RK818_INT_STS_REG2		0x4e
+#define RK818_INT_STS_MSK_REG2		0x4f
+#define RK818_IO_POL_REG		0x50
+#define RK818_H5V_EN_REG		0x52
+#define RK818_SLEEP_SET_OFF_REG3	0x53
+#define RK818_BOOST_LDO9_ON_VSEL_REG	0x54
+#define RK818_BOOST_LDO9_SLP_VSEL_REG	0x55
+#define RK818_BOOST_CTRL_REG		0x56
+#define RK818_DCDC_ILMAX		0x90
+#define RK818_USB_CTRL_REG		0xa1
+
+#define RK818_H5V_EN			BIT(0)
+#define RK818_REF_RDY_CTRL		BIT(1)
+#define RK818_USB_ILIM_SEL_MASK		0xf
+#define RK818_USB_ILMIN_2000MA		0x7
+#define RK818_USB_CHG_SD_VSEL_MASK	0x70
+
+/* RK808 IRQ Definitions */
 #define RK808_IRQ_VOUT_LO	0
 #define RK808_IRQ_VB_LO		1
 #define RK808_IRQ_PWRON		2
@@ -137,6 +226,43 @@ enum rk808_reg {
 #define RK808_IRQ_PLUG_IN_INT_MSK	BIT(0)
 #define RK808_IRQ_PLUG_OUT_INT_MSK	BIT(1)
 
+/* RK818 IRQ Definitions */
+#define RK818_IRQ_VOUT_LO	0
+#define RK818_IRQ_VB_LO		1
+#define RK818_IRQ_PWRON		2
+#define RK818_IRQ_PWRON_LP	3
+#define RK818_IRQ_HOTDIE	4
+#define RK818_IRQ_RTC_ALARM	5
+#define RK818_IRQ_RTC_PERIOD	6
+#define RK818_IRQ_USB_OV	7
+#define RK818_IRQ_PLUG_IN	8
+#define RK818_IRQ_PLUG_OUT	9
+#define RK818_IRQ_CHG_OK	10
+#define RK818_IRQ_CHG_TE	11
+#define RK818_IRQ_CHG_TS1	12
+#define RK818_IRQ_TS2		13
+#define RK818_IRQ_CHG_CVTLIM	14
+#define RK818_IRQ_DISCHG_ILIM	7
+
+#define RK818_IRQ_VOUT_LO_MSK		BIT(0)
+#define RK818_IRQ_VB_LO_MSK		BIT(1)
+#define RK818_IRQ_PWRON_MSK		BIT(2)
+#define RK818_IRQ_PWRON_LP_MSK		BIT(3)
+#define RK818_IRQ_HOTDIE_MSK		BIT(4)
+#define RK818_IRQ_RTC_ALARM_MSK		BIT(5)
+#define RK818_IRQ_RTC_PERIOD_MSK	BIT(6)
+#define RK818_IRQ_USB_OV_MSK		BIT(7)
+#define RK818_IRQ_PLUG_IN_MSK		BIT(0)
+#define RK818_IRQ_PLUG_OUT_MSK		BIT(1)
+#define RK818_IRQ_CHG_OK_MSK		BIT(2)
+#define RK818_IRQ_CHG_TE_MSK		BIT(3)
+#define RK818_IRQ_CHG_TS1_MSK		BIT(4)
+#define RK818_IRQ_TS2_MSK		BIT(5)
+#define RK818_IRQ_CHG_CVTLIM_MSK	BIT(6)
+#define RK818_IRQ_DISCHG_ILIM_MSK	BIT(7)
+
+#define RK818_NUM_IRQ		16
+
 #define RK808_VBAT_LOW_2V8	0x00
 #define RK808_VBAT_LOW_2V9	0x01
 #define RK808_VBAT_LOW_3V0	0x02
@@ -191,9 +317,27 @@ enum {
 	BOOST_ILMIN_250MA,
 };
 
+enum {
+	RK808_ID,
+	RK818_ID,
+};
+
+struct rk8xx_reg_data {
+	int addr;
+	int mask;
+	int value;
+};
+
 struct rk8xx {
-	struct i2c_client *i2c;
-	struct regmap_irq_chip_data *irq_data;
-	struct regmap *regmap;
+	struct i2c_client		*i2c;
+	struct regmap_irq_chip_data	*irq_data;
+	struct regmap			*regmap;
+	long				variant;
+	int				nr_cells;
+	const struct mfd_cell		*cells;
+	const struct regmap_config	*regmap_cfg;
+	const struct regmap_irq_chip	*regmap_irq_chip;
+	const struct rk8xx_reg_data	*pre_init_reg;
+	int				nr_pre_init_regs;
 };
-#endif /* __LINUX_REGULATOR_rk808_H */
+#endif /* __LINUX_REGULATOR_RK8XX_H */
-- 
1.9.1

[PATCH v2 3/7] regulator: rk808: Migrate to regulator core's simplified DT parsing code

[Wadim Egorov]

A common simplified DT parsing code for regulators was introduced in
commit a0c7b164ad11 ("regulator: of: Provide simplified DT parsing
method")

While at it also added RK8XX_DESC and RK8XX_DESC_SWITCH macros for the
regulator_desc struct initialization. This just makes the driver more compact.
Remove also linear ranges definitions with only one range.

Signed-off-by: Wadim Egorov <w.egorov-guT5V/WYfQezQB+pC5nmwQ@public.gmane.org>
---
 drivers/regulator/rk808-regulator.c | 308 +++++++++++++-----------------------
 1 file changed, 114 insertions(+), 194 deletions(-)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index 37aaba9..2c529fa 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -55,6 +55,42 @@
 /* max steps for increase voltage of Buck1/2, equal 100mv*/
 #define MAX_STEPS_ONE_TIME 8
 
+#define RK8XX_DESC(_id, _match, _supply, _min, _max, _step, _vreg,	\
+	_vmask, _ereg, _emask, _etime)					\
+	[_id] = {							\
+		.name		= (_match),				\
+		.supply_name	= (_supply),				\
+		.of_match	= of_match_ptr(_match),			\
+		.regulators_node = of_match_ptr("regulators"),		\
+		.type		= REGULATOR_VOLTAGE,			\
+		.id		= (_id),				\
+		.n_voltages	= (((_max) - (_min)) / (_step) + 1),	\
+		.owner		= THIS_MODULE,				\
+		.min_uV		= (_min) * 1000,			\
+		.uV_step	= (_step) * 1000,			\
+		.vsel_reg	= (_vreg),				\
+		.vsel_mask	= (_vmask),				\
+		.enable_reg	= (_ereg),				\
+		.enable_mask	= (_emask),				\
+		.enable_time	= (_etime),				\
+		.ops		= &rk808_reg_ops,			\
+	}
+
+#define RK8XX_DESC_SWITCH(_id, _match, _supply, _ereg, _emask)		\
+	[_id] = {							\
+		.name		= (_match),				\
+		.supply_name	= (_supply),				\
+		.of_match	= of_match_ptr(_match),			\
+		.regulators_node = of_match_ptr("regulators"),		\
+		.type		= REGULATOR_VOLTAGE,			\
+		.id		= (_id),				\
+		.enable_reg	= (_ereg),				\
+		.enable_mask	= (_emask),				\
+		.owner		= THIS_MODULE,				\
+		.ops		= &rk808_switch_ops			\
+	}
+
+
 struct rk808_regulator_data {
 	struct gpio_desc *dvs_gpio[2];
 };
@@ -66,27 +102,11 @@ static const int rk808_buck_config_regs[] = {
 	RK808_BUCK4_CONFIG_REG,
 };
 
-static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
-	REGULATOR_LINEAR_RANGE(712500, 0, 63, 12500),
-};
-
-static const struct regulator_linear_range rk808_buck4_voltage_ranges[] = {
-	REGULATOR_LINEAR_RANGE(1800000, 0, 15, 100000),
-};
-
-static const struct regulator_linear_range rk808_ldo_voltage_ranges[] = {
-	REGULATOR_LINEAR_RANGE(1800000, 0, 16, 100000),
-};
-
 static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = {
 	REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000),
 	REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0),
 };
 
-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);
@@ -239,7 +259,7 @@ static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
 				  RK808_RAMP_RATE_MASK, ramp_value);
 }
 
-static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
+static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv)
 {
 	unsigned int reg;
 	int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
@@ -254,6 +274,21 @@ static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
 				  sel);
 }
 
+static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
+{
+	unsigned int reg;
+	int sel = regulator_map_voltage_linear(rdev, uv, uv);
+
+	if (sel < 0)
+		return -EINVAL;
+
+	reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
+
+	return regmap_update_bits(rdev->regmap, reg,
+				  rdev->desc->vsel_mask,
+				  sel);
+}
+
 static int rk808_set_suspend_enable(struct regulator_dev *rdev)
 {
 	unsigned int reg;
@@ -291,7 +326,7 @@ static struct regulator_ops rk808_buck1_2_ops = {
 	.set_suspend_disable	= rk808_set_suspend_disable,
 };
 
-static struct regulator_ops rk808_reg_ops = {
+static struct regulator_ops rk808_reg_ops_ranges = {
 	.list_voltage		= regulator_list_voltage_linear_range,
 	.map_voltage		= regulator_map_voltage_linear_range,
 	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
@@ -299,6 +334,19 @@ static struct regulator_ops rk808_reg_ops = {
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 	.is_enabled		= regulator_is_enabled_regmap,
+	.set_suspend_voltage	= rk808_set_suspend_voltage_range,
+	.set_suspend_enable	= rk808_set_suspend_enable,
+	.set_suspend_disable	= rk808_set_suspend_disable,
+};
+
+static struct regulator_ops rk808_reg_ops = {
+	.list_voltage		= regulator_list_voltage_linear,
+	.map_voltage		= regulator_map_voltage_linear,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
 	.set_suspend_voltage	= rk808_set_suspend_voltage,
 	.set_suspend_enable	= rk808_set_suspend_enable,
 	.set_suspend_disable	= rk808_set_suspend_disable,
@@ -316,12 +364,14 @@ static const struct regulator_desc rk808_reg[] = {
 	{
 		.name = "DCDC_REG1",
 		.supply_name = "vcc1",
+		.of_match = of_match_ptr("DCDC_REG1"),
+		.regulators_node = of_match_ptr("regulators"),
 		.id = RK808_ID_DCDC1,
 		.ops = &rk808_buck1_2_ops,
 		.type = REGULATOR_VOLTAGE,
+		.min_uV = 712500,
+		.uV_step = 12500,
 		.n_voltages = 64,
-		.linear_ranges = rk808_buck_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
 		.vsel_reg = RK808_BUCK1_ON_VSEL_REG,
 		.vsel_mask = RK808_BUCK_VSEL_MASK,
 		.enable_reg = RK808_DCDC_EN_REG,
@@ -330,12 +380,14 @@ static const struct regulator_desc rk808_reg[] = {
 	}, {
 		.name = "DCDC_REG2",
 		.supply_name = "vcc2",
+		.of_match = of_match_ptr("DCDC_REG2"),
+		.regulators_node = of_match_ptr("regulators"),
 		.id = RK808_ID_DCDC2,
 		.ops = &rk808_buck1_2_ops,
 		.type = REGULATOR_VOLTAGE,
+		.min_uV = 712500,
+		.uV_step = 12500,
 		.n_voltages = 64,
-		.linear_ranges = rk808_buck_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
 		.vsel_reg = RK808_BUCK2_ON_VSEL_REG,
 		.vsel_mask = RK808_BUCK_VSEL_MASK,
 		.enable_reg = RK808_DCDC_EN_REG,
@@ -344,6 +396,8 @@ static const struct regulator_desc rk808_reg[] = {
 	}, {
 		.name = "DCDC_REG3",
 		.supply_name = "vcc3",
+		.of_match = of_match_ptr("DCDC_REG3"),
+		.regulators_node = of_match_ptr("regulators"),
 		.id = RK808_ID_DCDC3,
 		.ops = &rk808_switch_ops,
 		.type = REGULATOR_VOLTAGE,
@@ -351,55 +405,23 @@ static const struct regulator_desc rk808_reg[] = {
 		.enable_reg = RK808_DCDC_EN_REG,
 		.enable_mask = BIT(2),
 		.owner = THIS_MODULE,
-	}, {
-		.name = "DCDC_REG4",
-		.supply_name = "vcc4",
-		.id = RK808_ID_DCDC4,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 16,
-		.linear_ranges = rk808_buck4_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_buck4_voltage_ranges),
-		.vsel_reg = RK808_BUCK4_ON_VSEL_REG,
-		.vsel_mask = RK808_BUCK4_VSEL_MASK,
-		.enable_reg = RK808_DCDC_EN_REG,
-		.enable_mask = BIT(3),
-		.owner = THIS_MODULE,
-	}, {
-		.name = "LDO_REG1",
-		.supply_name = "vcc6",
-		.id = RK808_ID_LDO1,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 17,
-		.linear_ranges = rk808_ldo_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
-		.vsel_reg = RK808_LDO1_ON_VSEL_REG,
-		.vsel_mask = RK808_LDO_VSEL_MASK,
-		.enable_reg = RK808_LDO_EN_REG,
-		.enable_mask = BIT(0),
-		.enable_time = 400,
-		.owner = THIS_MODULE,
-	}, {
-		.name = "LDO_REG2",
-		.supply_name = "vcc6",
-		.id = RK808_ID_LDO2,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 17,
-		.linear_ranges = rk808_ldo_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
-		.vsel_reg = RK808_LDO2_ON_VSEL_REG,
-		.vsel_mask = RK808_LDO_VSEL_MASK,
-		.enable_reg = RK808_LDO_EN_REG,
-		.enable_mask = BIT(1),
-		.enable_time = 400,
-		.owner = THIS_MODULE,
-	}, {
+	},
+	RK8XX_DESC(RK808_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3300, 100,
+		RK808_BUCK4_ON_VSEL_REG, RK808_BUCK4_VSEL_MASK,
+		RK808_DCDC_EN_REG, BIT(3), 0),
+	RK8XX_DESC(RK808_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
+		RK808_LDO1_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+		BIT(0), 400),
+	RK8XX_DESC(RK808_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
+		RK808_LDO2_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+		BIT(1), 400),
+	{
 		.name = "LDO_REG3",
 		.supply_name = "vcc7",
+		.of_match = of_match_ptr("LDO_REG3"),
+		.regulators_node = of_match_ptr("regulators"),
 		.id = RK808_ID_LDO3,
-		.ops = &rk808_reg_ops,
+		.ops = &rk808_reg_ops_ranges,
 		.type = REGULATOR_VOLTAGE,
 		.n_voltages = 16,
 		.linear_ranges = rk808_ldo3_voltage_ranges,
@@ -410,117 +432,26 @@ static const struct regulator_desc rk808_reg[] = {
 		.enable_mask = BIT(2),
 		.enable_time = 400,
 		.owner = THIS_MODULE,
-	}, {
-		.name = "LDO_REG4",
-		.supply_name = "vcc9",
-		.id = RK808_ID_LDO4,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 17,
-		.linear_ranges = rk808_ldo_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
-		.vsel_reg = RK808_LDO4_ON_VSEL_REG,
-		.vsel_mask = RK808_LDO_VSEL_MASK,
-		.enable_reg = RK808_LDO_EN_REG,
-		.enable_mask = BIT(3),
-		.enable_time = 400,
-		.owner = THIS_MODULE,
-	}, {
-		.name = "LDO_REG5",
-		.supply_name = "vcc9",
-		.id = RK808_ID_LDO5,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 17,
-		.linear_ranges = rk808_ldo_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
-		.vsel_reg = RK808_LDO5_ON_VSEL_REG,
-		.vsel_mask = RK808_LDO_VSEL_MASK,
-		.enable_reg = RK808_LDO_EN_REG,
-		.enable_mask = BIT(4),
-		.enable_time = 400,
-		.owner = THIS_MODULE,
-	}, {
-		.name = "LDO_REG6",
-		.supply_name = "vcc10",
-		.id = RK808_ID_LDO6,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 18,
-		.linear_ranges = rk808_ldo6_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
-		.vsel_reg = RK808_LDO6_ON_VSEL_REG,
-		.vsel_mask = RK808_LDO_VSEL_MASK,
-		.enable_reg = RK808_LDO_EN_REG,
-		.enable_mask = BIT(5),
-		.enable_time = 400,
-		.owner = THIS_MODULE,
-	}, {
-		.name = "LDO_REG7",
-		.supply_name = "vcc7",
-		.id = RK808_ID_LDO7,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 18,
-		.linear_ranges = rk808_ldo6_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
-		.vsel_reg = RK808_LDO7_ON_VSEL_REG,
-		.vsel_mask = RK808_LDO_VSEL_MASK,
-		.enable_reg = RK808_LDO_EN_REG,
-		.enable_mask = BIT(6),
-		.enable_time = 400,
-		.owner = THIS_MODULE,
-	}, {
-		.name = "LDO_REG8",
-		.supply_name = "vcc11",
-		.id = RK808_ID_LDO8,
-		.ops = &rk808_reg_ops,
-		.type = REGULATOR_VOLTAGE,
-		.n_voltages = 17,
-		.linear_ranges = rk808_ldo_voltage_ranges,
-		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
-		.vsel_reg = RK808_LDO8_ON_VSEL_REG,
-		.vsel_mask = RK808_LDO_VSEL_MASK,
-		.enable_reg = RK808_LDO_EN_REG,
-		.enable_mask = BIT(7),
-		.enable_time = 400,
-		.owner = THIS_MODULE,
-	}, {
-		.name = "SWITCH_REG1",
-		.supply_name = "vcc8",
-		.id = RK808_ID_SWITCH1,
-		.ops = &rk808_switch_ops,
-		.type = REGULATOR_VOLTAGE,
-		.enable_reg = RK808_DCDC_EN_REG,
-		.enable_mask = BIT(5),
-		.owner = THIS_MODULE,
-	}, {
-		.name = "SWITCH_REG2",
-		.supply_name = "vcc12",
-		.id = RK808_ID_SWITCH2,
-		.ops = &rk808_switch_ops,
-		.type = REGULATOR_VOLTAGE,
-		.enable_reg = RK808_DCDC_EN_REG,
-		.enable_mask = BIT(6),
-		.owner = THIS_MODULE,
 	},
-};
-
-static struct of_regulator_match rk808_reg_matches[] = {
-	[RK808_ID_DCDC1]	= { .name = "DCDC_REG1" },
-	[RK808_ID_DCDC2]	= { .name = "DCDC_REG2" },
-	[RK808_ID_DCDC3]	= { .name = "DCDC_REG3" },
-	[RK808_ID_DCDC4]	= { .name = "DCDC_REG4" },
-	[RK808_ID_LDO1]		= { .name = "LDO_REG1" },
-	[RK808_ID_LDO2]		= { .name = "LDO_REG2" },
-	[RK808_ID_LDO3]		= { .name = "LDO_REG3" },
-	[RK808_ID_LDO4]		= { .name = "LDO_REG4" },
-	[RK808_ID_LDO5]		= { .name = "LDO_REG5" },
-	[RK808_ID_LDO6]		= { .name = "LDO_REG6" },
-	[RK808_ID_LDO7]		= { .name = "LDO_REG7" },
-	[RK808_ID_LDO8]		= { .name = "LDO_REG8" },
-	[RK808_ID_SWITCH1]	= { .name = "SWITCH_REG1" },
-	[RK808_ID_SWITCH2]	= { .name = "SWITCH_REG2" },
+	RK8XX_DESC(RK808_ID_LDO4, "LDO_REG4", "vcc9", 1800, 3400, 100,
+		RK808_LDO4_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+		BIT(3), 400),
+	RK8XX_DESC(RK808_ID_LDO5, "LDO_REG5", "vcc9", 1800, 3400, 100,
+		RK808_LDO5_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+		BIT(4), 400),
+	RK8XX_DESC(RK808_ID_LDO6, "LDO_REG6", "vcc10", 800, 2500, 100,
+		RK808_LDO6_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+		BIT(5), 400),
+	RK8XX_DESC(RK808_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
+		RK808_LDO7_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+		BIT(6), 400),
+	RK8XX_DESC(RK808_ID_LDO8, "LDO_REG8", "vcc11", 1800, 3400, 100,
+		RK808_LDO8_ON_VSEL_REG, RK808_LDO_VSEL_MASK, RK808_LDO_EN_REG,
+		BIT(7), 400),
+	RK8XX_DESC_SWITCH(RK808_ID_SWITCH1, "SWITCH_REG1", "vcc8",
+		RK808_DCDC_EN_REG, BIT(5)),
+	RK8XX_DESC_SWITCH(RK808_ID_SWITCH2, "SWITCH_REG2", "vcc12",
+		RK808_DCDC_EN_REG, BIT(6)),
 };
 
 static int rk808_regulator_dt_parse_pdata(struct device *dev,
@@ -529,17 +460,12 @@ static int rk808_regulator_dt_parse_pdata(struct device *dev,
 				   struct rk808_regulator_data *pdata)
 {
 	struct device_node *np;
-	int tmp, ret, i;
+	int tmp, ret = 0, 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] =
 			devm_gpiod_get_index_optional(client_dev, "dvs", i,
@@ -586,18 +512,12 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pdata);
 
+	config.dev = &client->dev;
+	config.driver_data = pdata;
+	config.regmap = rk8xx->regmap;
+
 	/* Instantiate the regulators */
 	for (i = 0; i < RK808_NUM_REGULATORS; i++) {
-		if (!rk808_reg_matches[i].init_data ||
-		    !rk808_reg_matches[i].of_node)
-			continue;
-
-		config.dev = &client->dev;
-		config.driver_data = pdata;
-		config.regmap = rk8xx->regmap;
-		config.of_node = rk808_reg_matches[i].of_node;
-		config.init_data = rk808_reg_matches[i].init_data;
-
 		rk808_rdev = devm_regulator_register(&pdev->dev,
 						     &rk808_reg[i], &config);
 		if (IS_ERR(rk808_rdev)) {
-- 
1.9.1

Re: [PATCH v2 3/7] regulator: rk808: Migrate to regulator core's simplified DT parsing code

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 571 bytes --]

On Thu, Apr 21, 2016 at 03:12:37PM +0200, Wadim Egorov wrote:

> +static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
> +{
> +	unsigned int reg;
> +	int sel = regulator_map_voltage_linear(rdev, uv, uv);
> +
> +	if (sel < 0)
> +		return -EINVAL;
> +
> +	reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
> +
> +	return regmap_update_bits(rdev->regmap, reg,
> +				  rdev->desc->vsel_mask,
> +				  sel);
> +}

This is fine but is adding a new feature and not part of the refactoring
that the changelog talked about so should be in a separate commit.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

Re: [PATCH v2 3/7] regulator: rk808: Migrate to regulator core's simplified DT parsing code

[Wadim Egorov]

On 21.04.2016 18:01, Mark Brown wrote:
> On Thu, Apr 21, 2016 at 03:12:37PM +0200, Wadim Egorov wrote:
>
>> +static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
>> +{
>> +	unsigned int reg;
>> +	int sel = regulator_map_voltage_linear(rdev, uv, uv);
>> +
>> +	if (sel < 0)
>> +		return -EINVAL;
>> +
>> +	reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
>> +
>> +	return regmap_update_bits(rdev->regmap, reg,
>> +				  rdev->desc->vsel_mask,
>> +				  sel);
>> +}
> This is fine but is adding a new feature and not part of the refactoring
> that the changelog talked about so should be in a separate commit.

This is not really a new feature.
rk808_set_suspend_voltage() was using regulator_map_voltage_linear_range().
I have just renamed the function to rk808_set_suspend_voltage_range()
and added an ops struct for ranges.
Yes, I have also added rk808_set_suspend_voltage(), but this is just a split
for the two types of ops that the driver needs now.
This was needed, because the driver used only linear ranges.
IMO it should be a part of the refactoring.

Re: [PATCH v2 3/7] regulator: rk808: Migrate to regulator core's simplified DT parsing code

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 929 bytes --]

On Fri, Apr 22, 2016 at 11:03:09AM +0200, Wadim Egorov wrote:
> On 21.04.2016 18:01, Mark Brown wrote:

> >> +static int rk808_set_suspend_voltage(struct regulator_dev *rdev, int uv)
> >> +{

> > This is fine but is adding a new feature and not part of the refactoring
> > that the changelog talked about so should be in a separate commit.

> This is not really a new feature.
> rk808_set_suspend_voltage() was using regulator_map_voltage_linear_range().
> I have just renamed the function to rk808_set_suspend_voltage_range()
> and added an ops struct for ranges.
> Yes, I have also added rk808_set_suspend_voltage(), but this is just a split
> for the two types of ops that the driver needs now.
> This was needed, because the driver used only linear ranges.
> IMO it should be a part of the refactoring.

If that's the case then split this into multiple refactorings each doing
one change so this can be more easily reviewed.

[-- Attachment #2: signature.asc --]
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[PATCH v2 4/7] regulator: rk808: Add regulator driver for RK818

[Wadim Egorov]

Add support for the rk818 regulator. The regulator module consists
of 4 DCDCs, 9 LDOs, 1 switch and 1 BOOST converter which is used to
power OTG and HDMI5V.

The output voltages are configurable and are meant to supply power
to the main processor and other components.

Signed-off-by: Wadim Egorov <w.egorov-guT5V/WYfQezQB+pC5nmwQ@public.gmane.org>
---
 drivers/regulator/Kconfig           |   4 +-
 drivers/regulator/rk808-regulator.c | 141 ++++++++++++++++++++++++++++++++++--
 2 files changed, 137 insertions(+), 8 deletions(-)

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index c77dc08..0efbcbf 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -609,11 +609,11 @@ config REGULATOR_RC5T583
 	  outputs which can be controlled by i2c communication.
 
 config REGULATOR_RK808
-	tristate "Rockchip RK808 Power regulators"
+	tristate "Rockchip RK808/RK818 Power regulators"
 	depends on MFD_RK808
 	help
 	  Select this option to enable the power regulator of ROCKCHIP
-	  PMIC RK808.
+	  PMIC RK808 and RK818.
 	  This driver supports the control of different power rails of device
 	  through regulator interface. The device supports multiple DCDC/LDO
 	  outputs which can be controlled by i2c communication.
diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index 2c529fa..9931097 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -6,6 +6,10 @@
  * Author: Chris Zhong <zyw-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
  * Author: Zhang Qing <zhangqing-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
  *
+ * Copyright (C) 2016 PHYTEC Messtechnik GmbH
+ *
+ * Author: Wadim Egorov <w.egorov-guT5V/WYfQezQB+pC5nmwQ@public.gmane.org>
+ *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
@@ -32,6 +36,12 @@
 #define RK808_BUCK4_VSEL_MASK	0xf
 #define RK808_LDO_VSEL_MASK	0x1f
 
+#define RK818_BUCK_VSEL_MASK		0x3f
+#define RK818_BUCK4_VSEL_MASK		0x1f
+#define RK818_LDO_VSEL_MASK		0x1f
+#define RK818_LDO3_ON_VSEL_MASK		0xf
+#define RK818_BOOST_ON_VSEL_MASK	0xe0
+
 /* Ramp rate definitions for buck1 / buck2 only */
 #define RK808_RAMP_RATE_OFFSET		3
 #define RK808_RAMP_RATE_MASK		(3 << RK808_RAMP_RATE_OFFSET)
@@ -454,6 +464,108 @@ static const struct regulator_desc rk808_reg[] = {
 		RK808_DCDC_EN_REG, BIT(6)),
 };
 
+static const struct regulator_desc rk818_reg[] = {
+	{
+		.name = "DCDC_REG1",
+		.supply_name = "vcc1",
+		.of_match = of_match_ptr("DCDC_REG1"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK818_ID_DCDC1,
+		.ops = &rk808_reg_ops,
+		.type = REGULATOR_VOLTAGE,
+		.min_uV = 712500,
+		.uV_step = 12500,
+		.n_voltages = 64,
+		.vsel_reg = RK818_BUCK1_ON_VSEL_REG,
+		.vsel_mask = RK818_BUCK_VSEL_MASK,
+		.enable_reg = RK818_DCDC_EN_REG,
+		.enable_mask = BIT(0),
+		.owner = THIS_MODULE,
+	}, {
+		.name = "DCDC_REG2",
+		.supply_name = "vcc2",
+		.of_match = of_match_ptr("DCDC_REG2"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK818_ID_DCDC2,
+		.ops = &rk808_reg_ops,
+		.type = REGULATOR_VOLTAGE,
+		.min_uV = 712500,
+		.uV_step = 12500,
+		.n_voltages = 64,
+		.vsel_reg = RK818_BUCK2_ON_VSEL_REG,
+		.vsel_mask = RK818_BUCK_VSEL_MASK,
+		.enable_reg = RK818_DCDC_EN_REG,
+		.enable_mask = BIT(1),
+		.owner = THIS_MODULE,
+	}, {
+		.name = "DCDC_REG3",
+		.supply_name = "vcc3",
+		.of_match = of_match_ptr("DCDC_REG3"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK818_ID_DCDC3,
+		.ops = &rk808_switch_ops,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 1,
+		.enable_reg = RK818_DCDC_EN_REG,
+		.enable_mask = BIT(2),
+		.owner = THIS_MODULE,
+	},
+	RK8XX_DESC(RK818_ID_DCDC4, "DCDC_REG4", "vcc4", 1800, 3600, 100,
+		RK818_BUCK4_ON_VSEL_REG, RK818_BUCK4_VSEL_MASK,
+		RK818_DCDC_EN_REG, BIT(3), 0),
+	RK8XX_DESC(RK818_ID_BOOST, "DCDC_BOOST", "boost", 4700, 5400, 100,
+		RK818_BOOST_LDO9_ON_VSEL_REG, RK818_BOOST_ON_VSEL_MASK,
+		RK818_DCDC_EN_REG, BIT(4), 0),
+	RK8XX_DESC(RK818_ID_LDO1, "LDO_REG1", "vcc6", 1800, 3400, 100,
+		RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		BIT(0), 400),
+	RK8XX_DESC(RK818_ID_LDO2, "LDO_REG2", "vcc6", 1800, 3400, 100,
+		RK818_LDO1_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		BIT(1), 400),
+	{
+		.name = "LDO_REG3",
+		.supply_name = "vcc7",
+		.of_match = of_match_ptr("LDO_REG3"),
+		.regulators_node = of_match_ptr("regulators"),
+		.id = RK818_ID_LDO3,
+		.ops = &rk808_reg_ops_ranges,
+		.type = REGULATOR_VOLTAGE,
+		.n_voltages = 16,
+		.linear_ranges = rk808_ldo3_voltage_ranges,
+		.n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
+		.vsel_reg = RK818_LDO3_ON_VSEL_REG,
+		.vsel_mask = RK818_LDO3_ON_VSEL_MASK,
+		.enable_reg = RK818_LDO_EN_REG,
+		.enable_mask = BIT(2),
+		.enable_time = 400,
+		.owner = THIS_MODULE,
+	},
+	RK8XX_DESC(RK818_ID_LDO4, "LDO_REG4", "vcc8", 1800, 3400, 100,
+		RK818_LDO4_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		BIT(3), 400),
+	RK8XX_DESC(RK818_ID_LDO5, "LDO_REG5", "vcc7", 1800, 3400, 100,
+		RK818_LDO5_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		BIT(4), 400),
+	RK8XX_DESC(RK818_ID_LDO6, "LDO_REG6", "vcc8", 800, 2500, 100,
+		RK818_LDO6_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		BIT(5), 400),
+	RK8XX_DESC(RK818_ID_LDO7, "LDO_REG7", "vcc7", 800, 2500, 100,
+		RK818_LDO7_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		BIT(6), 400),
+	RK8XX_DESC(RK818_ID_LDO8, "LDO_REG8", "vcc8", 1800, 3400, 100,
+		RK818_LDO8_ON_VSEL_REG, RK818_LDO_VSEL_MASK, RK818_LDO_EN_REG,
+		BIT(7), 400),
+	RK8XX_DESC(RK818_ID_LDO9, "LDO_REG9", "vcc9", 1800, 3400, 100,
+		RK818_BOOST_LDO9_ON_VSEL_REG, RK818_LDO_VSEL_MASK,
+		RK818_DCDC_EN_REG, BIT(5), 400),
+	RK8XX_DESC_SWITCH(RK818_ID_SWITCH, "SWITCH_REG", "vcc9",
+		RK818_DCDC_EN_REG, BIT(6)),
+	RK8XX_DESC_SWITCH(RK818_ID_HDMI_SWITCH, "HDMI_SWITCH", "h_5v",
+		RK818_H5V_EN_REG, BIT(0)),
+	RK8XX_DESC_SWITCH(RK818_ID_OTG_SWITCH, "OTG_SWITCH", "usb",
+		RK818_DCDC_EN_REG, BIT(7)),
+};
+
 static int rk808_regulator_dt_parse_pdata(struct device *dev,
 				   struct device *client_dev,
 				   struct regmap *map,
@@ -499,7 +611,8 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 	struct regulator_config config = {};
 	struct regulator_dev *rk808_rdev;
 	struct rk808_regulator_data *pdata;
-	int ret, i;
+	const struct regulator_desc *regulators;
+	int ret, i, nregulators;
 
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
@@ -512,14 +625,29 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pdata);
 
+	switch (rk8xx->variant) {
+	case RK808_ID:
+		regulators = rk808_reg;
+		nregulators = RK808_NUM_REGULATORS;
+		break;
+	case RK818_ID:
+		regulators = rk818_reg;
+		nregulators = RK818_NUM_REGULATORS;
+		break;
+	default:
+		dev_err(&client->dev, "unsupported RK8XX ID %lu\n",
+			rk8xx->variant);
+		return -EINVAL;
+	}
+
 	config.dev = &client->dev;
 	config.driver_data = pdata;
 	config.regmap = rk8xx->regmap;
 
 	/* Instantiate the regulators */
-	for (i = 0; i < RK808_NUM_REGULATORS; i++) {
+	for (i = 0; i < nregulators; i++) {
 		rk808_rdev = devm_regulator_register(&pdev->dev,
-						     &rk808_reg[i], &config);
+						     &regulators[i], &config);
 		if (IS_ERR(rk808_rdev)) {
 			dev_err(&client->dev,
 				"failed to register %d regulator\n", i);
@@ -540,8 +668,9 @@ static struct platform_driver rk808_regulator_driver = {
 
 module_platform_driver(rk808_regulator_driver);
 
-MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs");
-MODULE_AUTHOR("Chris Zhong<zyw-TNX95d0MmH7DzftRWevZcw@public.gmane.org>");
-MODULE_AUTHOR("Zhang Qing<zhangqing-TNX95d0MmH7DzftRWevZcw@public.gmane.org>");
+MODULE_DESCRIPTION("regulator driver for the rk8xx series PMICs");
+MODULE_AUTHOR("Chris Zhong <zyw-TNX95d0MmH7DzftRWevZcw@public.gmane.org>");
+MODULE_AUTHOR("Zhang Qing <zhangqing-TNX95d0MmH7DzftRWevZcw@public.gmane.org>");
+MODULE_AUTHOR("Wadim Egorov <w.egorov-guT5V/WYfQezQB+pC5nmwQ@public.gmane.org>");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:rk808-regulator");
-- 
1.9.1

Re: [PATCH v2 4/7] regulator: rk808: Add regulator driver for RK818

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 268 bytes --]

On Thu, Apr 21, 2016 at 03:12:38PM +0200, Wadim Egorov wrote:
> Add support for the rk818 regulator. The regulator module consists
> of 4 DCDCs, 9 LDOs, 1 switch and 1 BOOST converter which is used to
> power OTG and HDMI5V.

Acked-by: Mark Brown <broonie@kernel.org>

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

[PATCH v2 7/7] rtc: Kconfig: Name RK818 in Kconfig for RTC_DRV_RK808

[Wadim Egorov]

The RK808 and RK818 PMICs are using a similar register map.
We can reuse the rtc driver for the RK818 PMIC. So let's add
the RK818 in the Kconfig description.

Signed-off-by: Wadim Egorov <w.egorov-guT5V/WYfQezQB+pC5nmwQ@public.gmane.org>
---
 drivers/rtc/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 3e84315..acc2651 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -324,11 +324,11 @@ config RTC_DRV_MAX77686
 	  will be called rtc-max77686.
 
 config RTC_DRV_RK808
-	tristate "Rockchip RK808 RTC"
+	tristate "Rockchip RK808/RK818 RTC"
 	depends on MFD_RK808
 	help
 	  If you say yes here you will get support for the
-	  RTC of RK808 PMIC.
+	  RTC of RK808 and RK818 PMIC.
 
 	  This driver can also be built as a module. If so, the module
 	  will be called rk808-rtc.
-- 
1.9.1

Re: [PATCH v2 7/7] rtc: Kconfig: Name RK818 in Kconfig for RTC_DRV_RK808

[Alexandre Belloni]

On 21/04/2016 at 15:12:41 +0200, Wadim Egorov wrote :
> The RK808 and RK818 PMICs are using a similar register map.
> We can reuse the rtc driver for the RK818 PMIC. So let's add
> the RK818 in the Kconfig description.
> 
> Signed-off-by: Wadim Egorov <w.egorov-guT5V/WYfQezQB+pC5nmwQ@public.gmane.org>
Acked-by: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>

> ---
>  drivers/rtc/Kconfig | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
> index 3e84315..acc2651 100644
> --- a/drivers/rtc/Kconfig
> +++ b/drivers/rtc/Kconfig
> @@ -324,11 +324,11 @@ config RTC_DRV_MAX77686
>  	  will be called rtc-max77686.
>  
>  config RTC_DRV_RK808
> -	tristate "Rockchip RK808 RTC"
> +	tristate "Rockchip RK808/RK818 RTC"
>  	depends on MFD_RK808
>  	help
>  	  If you say yes here you will get support for the
> -	  RTC of RK808 PMIC.
> +	  RTC of RK808 and RK818 PMIC.
>  
>  	  This driver can also be built as a module. If so, the module
>  	  will be called rk808-rtc.
> -- 
> 1.9.1
> 

-- 
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Embedded Linux, Kernel and Android engineering
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[PATCH v2 5/7] mfd: dt-bindings: Add RK818 device tree bindings document

[Wadim Egorov]

Add device tree bindings documentation for Rockchip's RK818 PMIC.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
---
 Documentation/devicetree/bindings/mfd/rk808.txt | 37 +++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt
index 4ca6aab..9636ae8 100644
--- a/Documentation/devicetree/bindings/mfd/rk808.txt
+++ b/Documentation/devicetree/bindings/mfd/rk808.txt
@@ -1,7 +1,11 @@
-RK808 Power Management Integrated Circuit
+RK8XX Power Management Integrated Circuit
+
+The rk8xx family current members:
+rk808
+rk818
 
 Required properties:
-- compatible: "rockchip,rk808"
+- compatible: "rockchip,rk808", "rockchip,rk818"
 - reg: I2C slave address
 - interrupt-parent: The parent interrupt controller.
 - interrupts: the interrupt outputs of the controller.
@@ -13,6 +17,8 @@ Optional properties:
   default output clock name
 - rockchip,system-power-controller: Telling whether or not this pmic is controlling
   the system power.
+
+Optional RK808 properties:
 - vcc1-supply:  The input supply for DCDC_REG1
 - vcc2-supply:  The input supply for DCDC_REG2
 - vcc3-supply:  The input supply for DCDC_REG3
@@ -29,7 +35,20 @@ Optional properties:
   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
+Optional RK818 properties:
+- vcc1-supply:  The input supply for DCDC_REG1
+- vcc2-supply:  The input supply for DCDC_REG2
+- vcc3-supply:  The input supply for DCDC_REG3
+- vcc4-supply:  The input supply for DCDC_REG4
+- boost-supply: The input supply for DCDC_BOOST
+- vcc6-supply:  The input supply for LDO_REG1 and LDO_REG2
+- vcc7-supply:  The input supply for LDO_REG3, LDO_REG5 and LDO_REG7
+- vcc8-supply:  The input supply for LDO_REG4, LDO_REG6 and LDO_REG8
+- vcc9-supply:  The input supply for LDO_REG9 and SWITCH_REG
+- h_5v-supply:  The input supply for HDMI_SWITCH
+- usb-supply:   The input supply for OTG_SWITCH
+
+Regulators: All the regulators of RK8XX to be instantiated shall be
 listed in a child node named 'regulators'. Each regulator is represented
 by a child node of the 'regulators' node.
 
@@ -48,6 +67,18 @@ number as described in RK808 datasheet.
 	- SWITCH_REGn
 		- valid values for n are 1 to 2
 
+Following regulators of the RK818 PMIC block are supported. Note that
+the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO
+number as described in RK818 datasheet.
+
+	- DCDC_REGn
+		- valid values for n are 1 to 4.
+	- LDO_REGn
+		- valid values for n are 1 to 9.
+	- SWITCH_REG
+	- HDMI_SWITCH
+	- OTG_SWITCH
+
 Standard regulator bindings are used inside regulator subnodes. Check
   Documentation/devicetree/bindings/regulator/regulator.txt
 for more details
-- 
1.9.1

Re: [PATCH v2 5/7] mfd: dt-bindings: Add RK818 device tree bindings document

[Rob Herring]

On Thu, Apr 21, 2016 at 03:12:39PM +0200, Wadim Egorov wrote:
> Add device tree bindings documentation for Rockchip's RK818 PMIC.
> 
> Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
> ---
>  Documentation/devicetree/bindings/mfd/rk808.txt | 37 +++++++++++++++++++++++--
>  1 file changed, 34 insertions(+), 3 deletions(-)

Acked-by: Rob Herring <robh@kernel.org>

[PATCH v2 6/7] clk: Kconfig: Name RK818 in Kconfig for COMMON_CLK_RK808

[Wadim Egorov]

The RK808 and RK818 PMICs are using a similar register map.
We can reuse the clk driver for the RK818 PMIC. So let's add
the RK818 in the Kconfig description.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
---
 drivers/clk/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 16f7d33..64b4daa 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -49,10 +49,10 @@ config COMMON_CLK_MAX77802
 	  This driver supports Maxim 77802 crystal oscillator clock.
 
 config COMMON_CLK_RK808
-	tristate "Clock driver for RK808"
+	tristate "Clock driver for RK808/RK818"
 	depends on MFD_RK808
 	---help---
-	  This driver supports RK808 crystal oscillator clock. These
+	  This driver supports RK808 and RK818 crystal oscillator clock. These
 	  multi-function devices have two fixed-rate oscillators,
 	  clocked at 32KHz each. Clkout1 is always on, Clkout2 can off
 	  by control register.
-- 
1.9.1

Re: [PATCH v2 6/7] clk: Kconfig: Name RK818 in Kconfig for COMMON_CLK_RK808

[Stephen Boyd]

On 04/21, Wadim Egorov wrote:
> The RK808 and RK818 PMICs are using a similar register map.
> We can reuse the clk driver for the RK818 PMIC. So let's add
> the RK818 in the Kconfig description.
> 
> Signed-off-by: Wadim Egorov <w.egorov-guT5V/WYfQezQB+pC5nmwQ@public.gmane.org>
> ---

Acked-by: Stephen Boyd <sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>

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