Merge tag 'regulator-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates for 3.4 from Mark Brown:
 "This has been a fairly quiet release from a regulator point of view,
  the only real framework features added were devm support and a
  convenience helper for setting up fixed voltage regulators.

  We also added a couple of drivers (but will drop the BQ240022 driver
  via the arm-soc tree as it's been replaced by the more generic
  gpio-regulator driver) and Axel Lin continued his relentless and
  generally awesome stream of fixes and cleanups."

* tag 'regulator-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (93 commits)
  regulator: Fix up a confusing dev_warn when DT lookup fails
  regulator: Convert tps6507x to set_voltage_sel
  regulator: Refactor tps6507x to use one tps6507x_pmic_ops for all LDOs and DCDCs
  regulator: Make s5m8767_get_voltage_register always return correct register
  regulator: s5m8767: Check pdata->buck[2|3|4]_gpiodvs earlier
  regulator: tps65910: Provide settling time for DCDC voltage change
  regulator: Add Anatop regulator driver
  regulator: Simplify implementation of tps65912_get_voltage_dcdc
  regulator: Use tps65912_set_voltage_sel for both DCDCx and LDOx
  regulator: tps65910: Provide settling time for enabling rails
  regulator: max8925: Use DIV_ROUND_UP macro
  regulator: tps65912: Use simple equations to get register address
  regulator: Fix the logic of tps65910_get_mode
  regulator: Merge tps65217_pmic_ldo234_ops and tps65217_pmic_dcdc_ops to tps65217_pmic_ops
  regulator: Use DIV_ROUND_CLOSEST in wm8350_isink_get_current
  regulator: Use array to store dcdc_range settings for tps65912
  regulator: Rename s5m8767_convert_voltage to s5m8767_convert_voltage_to_sel
  regulator: tps6524x: Remove unneeded comment for N_REGULATORS
  regulator: Rename set_voltage_sel callback function name to *_sel
  regulator: Fix s5m8767_set_voltage_time_sel calculation value
  ...

1 files changed, 64 insertions, 276 deletions

diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index da00d88f94b7..b36799b1f530 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -114,10 +114,7 @@ struct tps65912_reg {
 	struct mutex io_lock;
 	int mode;
 	int (*get_ctrl_reg)(int);
-	int dcdc1_range;
-	int dcdc2_range;
-	int dcdc3_range;
-	int dcdc4_range;
+	int dcdc_range[TPS65912_NUM_DCDC];
 	int pwm_mode_reg;
 	int eco_reg;
 };
@@ -125,46 +122,31 @@ struct tps65912_reg {
 static int tps65912_get_range(struct tps65912_reg *pmic, int id)
 {
 	struct tps65912 *mfd = pmic->mfd;
-
-	if (id > TPS65912_REG_DCDC4)
-		return 0;
+	int range;
 
 	switch (id) {
 	case TPS65912_REG_DCDC1:
-		pmic->dcdc1_range = tps65912_reg_read(mfd,
-							TPS65912_DCDC1_LIMIT);
-		if (pmic->dcdc1_range < 0)
-			return pmic->dcdc1_range;
-		pmic->dcdc1_range = (pmic->dcdc1_range &
-			DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
-		return pmic->dcdc1_range;
+		range = tps65912_reg_read(mfd, TPS65912_DCDC1_LIMIT);
+		break;
 	case TPS65912_REG_DCDC2:
-		pmic->dcdc2_range = tps65912_reg_read(mfd,
-							TPS65912_DCDC2_LIMIT);
-		if (pmic->dcdc2_range < 0)
-			return pmic->dcdc2_range;
-		pmic->dcdc2_range = (pmic->dcdc2_range &
-			DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
-		return pmic->dcdc2_range;
+		range = tps65912_reg_read(mfd, TPS65912_DCDC2_LIMIT);
+		break;
 	case TPS65912_REG_DCDC3:
-		pmic->dcdc3_range = tps65912_reg_read(mfd,
-							TPS65912_DCDC3_LIMIT);
-		if (pmic->dcdc3_range < 0)
-			return pmic->dcdc3_range;
-		pmic->dcdc3_range = (pmic->dcdc3_range &
-			DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
-		return pmic->dcdc3_range;
+		range = tps65912_reg_read(mfd, TPS65912_DCDC3_LIMIT);
+		break;
 	case TPS65912_REG_DCDC4:
-		pmic->dcdc4_range = tps65912_reg_read(mfd,
-							TPS65912_DCDC4_LIMIT);
-		if (pmic->dcdc4_range < 0)
-			return pmic->dcdc4_range;
-		pmic->dcdc4_range = (pmic->dcdc4_range &
-			DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
-		return pmic->dcdc4_range;
+		range = tps65912_reg_read(mfd, TPS65912_DCDC4_LIMIT);
+		break;
 	default:
 		return 0;
 	}
+
+	if (range >= 0)
+		range = (range & DCDC_LIMIT_RANGE_MASK)
+			>> DCDC_LIMIT_RANGE_SHIFT;
+
+	pmic->dcdc_range[id] = range;
+	return range;
 }
 
 static unsigned long tps65912_vsel_to_uv_range0(u8 vsel)
@@ -219,146 +201,30 @@ static unsigned long tps65912_vsel_to_uv_ldo(u8 vsel)
 
 static int tps65912_get_ctrl_register(int id)
 {
-	switch (id) {
-	case TPS65912_REG_DCDC1:
-		return TPS65912_DCDC1_AVS;
-	case TPS65912_REG_DCDC2:
-		return TPS65912_DCDC2_AVS;
-	case TPS65912_REG_DCDC3:
-		return TPS65912_DCDC3_AVS;
-	case TPS65912_REG_DCDC4:
-		return TPS65912_DCDC4_AVS;
-	case TPS65912_REG_LDO1:
-		return TPS65912_LDO1_AVS;
-	case TPS65912_REG_LDO2:
-		return TPS65912_LDO2_AVS;
-	case TPS65912_REG_LDO3:
-		return TPS65912_LDO3_AVS;
-	case TPS65912_REG_LDO4:
-		return TPS65912_LDO4_AVS;
-	case TPS65912_REG_LDO5:
-		return TPS65912_LDO5;
-	case TPS65912_REG_LDO6:
-		return TPS65912_LDO6;
-	case TPS65912_REG_LDO7:
-		return TPS65912_LDO7;
-	case TPS65912_REG_LDO8:
-		return TPS65912_LDO8;
-	case TPS65912_REG_LDO9:
-		return TPS65912_LDO9;
-	case TPS65912_REG_LDO10:
-		return TPS65912_LDO10;
-	default:
+	if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4)
+		return id * 3 + TPS65912_DCDC1_AVS;
+	else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10)
+		return id - TPS65912_REG_LDO5 + TPS65912_LDO5;
+	else
 		return -EINVAL;
-	}
 }
 
-static int tps65912_get_dcdc_sel_register(struct tps65912_reg *pmic, int id)
+static int tps65912_get_sel_register(struct tps65912_reg *pmic, int id)
 {
 	struct tps65912 *mfd = pmic->mfd;
-	int opvsel = 0, sr = 0;
+	int opvsel;
 	u8 reg = 0;
 
-	if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_DCDC4)
-		return -EINVAL;
-
-	switch (id) {
-	case TPS65912_REG_DCDC1:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC1_OP);
-		sr = ((opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT);
-		if (sr)
-			reg = TPS65912_DCDC1_AVS;
-		else
-			reg = TPS65912_DCDC1_OP;
-		break;
-	case TPS65912_REG_DCDC2:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC2_OP);
-		sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-		if (sr)
-			reg = TPS65912_DCDC2_AVS;
-		else
-			reg = TPS65912_DCDC2_OP;
-		break;
-	case TPS65912_REG_DCDC3:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC3_OP);
-		sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-		if (sr)
-			reg = TPS65912_DCDC3_AVS;
-		else
-			reg = TPS65912_DCDC3_OP;
-		break;
-	case TPS65912_REG_DCDC4:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC4_OP);
-		sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-		if (sr)
-			reg = TPS65912_DCDC4_AVS;
+	if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4) {
+		opvsel = tps65912_reg_read(mfd, id * 3 + TPS65912_DCDC1_OP);
+		if (opvsel & OP_SELREG_MASK)
+			reg = id * 3 + TPS65912_DCDC1_AVS;
 		else
-			reg = TPS65912_DCDC4_OP;
-		break;
-	}
-	return reg;
-}
-
-static int tps65912_get_ldo_sel_register(struct tps65912_reg *pmic, int id)
-{
-	struct tps65912 *mfd = pmic->mfd;
-	int opvsel = 0, sr = 0;
-	u8 reg = 0;
-
-	if (id < TPS65912_REG_LDO1 || id > TPS65912_REG_LDO10)
+			reg = id * 3 + TPS65912_DCDC1_OP;
+	} else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10) {
+		reg = id - TPS65912_REG_LDO5 + TPS65912_LDO5;
+	} else {
 		return -EINVAL;
-
-	switch (id) {
-	case TPS65912_REG_LDO1:
-		opvsel = tps65912_reg_read(mfd, TPS65912_LDO1_OP);
-		sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-		if (sr)
-			reg = TPS65912_LDO1_AVS;
-		else
-			reg = TPS65912_LDO1_OP;
-		break;
-	case TPS65912_REG_LDO2:
-		opvsel = tps65912_reg_read(mfd, TPS65912_LDO2_OP);
-		sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-		if (sr)
-			reg = TPS65912_LDO2_AVS;
-		else
-			reg = TPS65912_LDO2_OP;
-		break;
-	case TPS65912_REG_LDO3:
-		opvsel = tps65912_reg_read(mfd, TPS65912_LDO3_OP);
-		sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-		if (sr)
-			reg = TPS65912_LDO3_AVS;
-		else
-			reg = TPS65912_LDO3_OP;
-		break;
-	case TPS65912_REG_LDO4:
-		opvsel = tps65912_reg_read(mfd, TPS65912_LDO4_OP);
-		sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-		if (sr)
-			reg = TPS65912_LDO4_AVS;
-		else
-			reg = TPS65912_LDO4_OP;
-		break;
-	case TPS65912_REG_LDO5:
-		reg = TPS65912_LDO5;
-		break;
-	case TPS65912_REG_LDO6:
-		reg = TPS65912_LDO6;
-		break;
-	case TPS65912_REG_LDO7:
-		reg = TPS65912_LDO7;
-		break;
-	case TPS65912_REG_LDO8:
-		reg = TPS65912_LDO8;
-		break;
-	case TPS65912_REG_LDO9:
-		reg = TPS65912_LDO9;
-		break;
-	case TPS65912_REG_LDO10:
-		reg = TPS65912_LDO10;
-		break;
 	}
 
 	return reg;
@@ -506,151 +372,83 @@ static unsigned int tps65912_get_mode(struct regulator_dev *dev)
 	return mode;
 }
 
-static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
+static int tps65912_list_voltage_dcdc(struct regulator_dev *dev,
+					unsigned selector)
 {
 	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
-	struct tps65912 *mfd = pmic->mfd;
-	int id = rdev_get_id(dev), voltage = 0, range;
-	int opvsel = 0, avsel = 0, sr, vsel;
+	int range, voltage = 0, id = rdev_get_id(dev);
 
-	switch (id) {
-	case TPS65912_REG_DCDC1:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC1_OP);
-		avsel = tps65912_reg_read(mfd, TPS65912_DCDC1_AVS);
-		range = pmic->dcdc1_range;
-		break;
-	case TPS65912_REG_DCDC2:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC2_OP);
-		avsel = tps65912_reg_read(mfd, TPS65912_DCDC2_AVS);
-		range = pmic->dcdc2_range;
-		break;
-	case TPS65912_REG_DCDC3:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC3_OP);
-		avsel = tps65912_reg_read(mfd, TPS65912_DCDC3_AVS);
-		range = pmic->dcdc3_range;
-		break;
-	case TPS65912_REG_DCDC4:
-		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC4_OP);
-		avsel = tps65912_reg_read(mfd, TPS65912_DCDC4_AVS);
-		range = pmic->dcdc4_range;
-		break;
-	default:
+	if (id > TPS65912_REG_DCDC4)
 		return -EINVAL;
-	}
 
-	sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
-	if (sr)
-		vsel = avsel;
-	else
-		vsel = opvsel;
-	vsel &= 0x3F;
+	range = pmic->dcdc_range[id];
 
 	switch (range) {
 	case 0:
 		/* 0.5 - 1.2875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range0(vsel);
+		voltage = tps65912_vsel_to_uv_range0(selector);
 		break;
 	case 1:
 		/* 0.7 - 1.4875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range1(vsel);
+		voltage = tps65912_vsel_to_uv_range1(selector);
 		break;
 	case 2:
 		/* 0.5 - 2.075V in 25mV steps */
-		voltage = tps65912_vsel_to_uv_range2(vsel);
+		voltage = tps65912_vsel_to_uv_range2(selector);
 		break;
 	case 3:
 		/* 0.5 - 3.8V in 50mV steps */
-		voltage = tps65912_vsel_to_uv_range3(vsel);
+		voltage = tps65912_vsel_to_uv_range3(selector);
 		break;
 	}
 	return voltage;
 }
 
-static int tps65912_set_voltage_dcdc(struct regulator_dev *dev,
-						unsigned selector)
+static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
 {
 	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
 	struct tps65912 *mfd = pmic->mfd;
 	int id = rdev_get_id(dev);
-	int value;
-	u8 reg;
-
-	reg = tps65912_get_dcdc_sel_register(pmic, id);
-	value = tps65912_reg_read(mfd, reg);
-	value &= 0xC0;
-	return tps65912_reg_write(mfd, reg, selector | value);
-}
+	int reg, vsel;
 
-static int tps65912_get_voltage_ldo(struct regulator_dev *dev)
-{
-	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
-	struct tps65912 *mfd = pmic->mfd;
-	int id = rdev_get_id(dev);
-	int vsel = 0;
-	u8 reg;
+	reg = tps65912_get_sel_register(pmic, id);
+	if (reg < 0)
+		return reg;
 
-	reg = tps65912_get_ldo_sel_register(pmic, id);
 	vsel = tps65912_reg_read(mfd, reg);
 	vsel &= 0x3F;
 
-	return tps65912_vsel_to_uv_ldo(vsel);
+	return tps65912_list_voltage_dcdc(dev, vsel);
 }
 
-static int tps65912_set_voltage_ldo(struct regulator_dev *dev,
-						unsigned selector)
+static int tps65912_set_voltage_sel(struct regulator_dev *dev,
+					 unsigned selector)
 {
 	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
 	struct tps65912 *mfd = pmic->mfd;
-	int id = rdev_get_id(dev), reg, value;
+	int id = rdev_get_id(dev);
+	int value;
+	u8 reg;
 
-	reg = tps65912_get_ldo_sel_register(pmic, id);
+	reg = tps65912_get_sel_register(pmic, id);
 	value = tps65912_reg_read(mfd, reg);
 	value &= 0xC0;
 	return tps65912_reg_write(mfd, reg, selector | value);
 }
 
-static int tps65912_list_voltage_dcdc(struct regulator_dev *dev,
-					unsigned selector)
+static int tps65912_get_voltage_ldo(struct regulator_dev *dev)
 {
 	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
-	int range, voltage = 0, id = rdev_get_id(dev);
+	struct tps65912 *mfd = pmic->mfd;
+	int id = rdev_get_id(dev);
+	int vsel = 0;
+	u8 reg;
 
-	switch (id) {
-	case TPS65912_REG_DCDC1:
-		range = pmic->dcdc1_range;
-		break;
-	case TPS65912_REG_DCDC2:
-		range = pmic->dcdc2_range;
-		break;
-	case TPS65912_REG_DCDC3:
-		range = pmic->dcdc3_range;
-		break;
-	case TPS65912_REG_DCDC4:
-		range = pmic->dcdc4_range;
-		break;
-	default:
-		return -EINVAL;
-	}
+	reg = tps65912_get_sel_register(pmic, id);
+	vsel = tps65912_reg_read(mfd, reg);
+	vsel &= 0x3F;
 
-	switch (range) {
-	case 0:
-		/* 0.5 - 1.2875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range0(selector);
-		break;
-	case 1:
-		/* 0.7 - 1.4875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range1(selector);
-		break;
-	case 2:
-		/* 0.5 - 2.075V in 25mV steps */
-		voltage = tps65912_vsel_to_uv_range2(selector);
-		break;
-	case 3:
-		/* 0.5 - 3.8V in 50mV steps */
-		voltage = tps65912_vsel_to_uv_range3(selector);
-		break;
-	}
-	return voltage;
+	return tps65912_vsel_to_uv_ldo(vsel);
 }
 
 static int tps65912_list_voltage_ldo(struct regulator_dev *dev,
@@ -672,7 +470,7 @@ static struct regulator_ops tps65912_ops_dcdc = {
 	.set_mode = tps65912_set_mode,
 	.get_mode = tps65912_get_mode,
 	.get_voltage = tps65912_get_voltage_dcdc,
-	.set_voltage_sel = tps65912_set_voltage_dcdc,
+	.set_voltage_sel = tps65912_set_voltage_sel,
 	.list_voltage = tps65912_list_voltage_dcdc,
 };
 
@@ -682,7 +480,7 @@ static struct regulator_ops tps65912_ops_ldo = {
 	.enable = tps65912_reg_enable,
 	.disable = tps65912_reg_disable,
 	.get_voltage = tps65912_get_voltage_ldo,
-	.set_voltage_sel = tps65912_set_voltage_ldo,
+	.set_voltage_sel = tps65912_set_voltage_sel,
 	.list_voltage = tps65912_list_voltage_ldo,
 };
 
@@ -770,22 +568,12 @@ static struct platform_driver tps65912_driver = {
 	.remove = __devexit_p(tps65912_remove),
 };
 
-/**
- * tps65912_init
- *
- * Module init function
- */
 static int __init tps65912_init(void)
 {
 	return platform_driver_register(&tps65912_driver);
 }
 subsys_initcall(tps65912_init);
 
-/**
- * tps65912_cleanup
- *
- * Module exit function
- */
 static void __exit tps65912_cleanup(void)
 {
 	platform_driver_unregister(&tps65912_driver);