Merge remote-tracking branch 'regulator/for-next'

14 files changed, 484 insertions, 42 deletions

diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index d18edb075e1c..378f6dc8b8bd 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -24,6 +24,14 @@ Optional properties:
 - regulator-settling-time-us: Settling time, in microseconds, for voltage
   change if regulator have the constant time for any level voltage change.
   This is useful when regulator have exponential voltage change.
+- regulator-settling-time-up-us: Settling time, in microseconds, for voltage
+  increase if the regulator needs a constant time to settle after voltage
+  increases of any level. This is useful for regulators with exponential
+  voltage changes.
+- regulator-settling-time-down-us: Settling time, in microseconds, for voltage
+  decrease if the regulator needs a constant time to settle after voltage
+  decreases of any level. This is useful for regulators with exponential
+  voltage changes.
 - regulator-soft-start: Enable soft start so that voltage ramps slowly
 - regulator-state-mem sub-root node for Suspend-to-RAM mode
   : suspend to memory, the device goes to sleep, but all data stored in memory,
diff --git a/MAINTAINERS b/MAINTAINERS
index 6a9aa42c99ee..3919392774a5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8086,11 +8086,11 @@ S:	Supported
 F:	drivers/power/supply/max14577_charger.c
 F:	drivers/power/supply/max77693_charger.c
 
-MAXIM MAX77802 MULTIFUNCTION PMIC DEVICE DRIVERS
-M:	Javier Martinez Canillas <javier@osg.samsung.com>
+MAXIM MAX77802 PMIC REGULATOR DEVICE DRIVER
+M:	Javier Martinez Canillas <javier@dowhile0.org>
 L:	linux-kernel@vger.kernel.org
 S:	Supported
-F:	drivers/*/*max77802*.c
+F:	drivers/regulator/max77802-regulator.c
 F:	Documentation/devicetree/bindings/*/*max77802.txt
 F:	include/dt-bindings/*/*max77802.h
 
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 48db87d6dfef..7c34ff8a5884 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -365,6 +365,14 @@ config REGULATOR_LP8755
 	  chip contains six step-down DC/DC converters which can support
 	  9 mode multiphase configuration.
 
+config REGULATOR_LP87565
+	tristate "TI LP87565 Power regulators"
+	depends on MFD_TI_LP87565 && OF
+	help
+	  This driver supports LP87565 voltage regulator chips. LP87565
+	  provides four step-down converters. It supports software based
+	  voltage control for different voltage domains
+
 config REGULATOR_LP8788
 	tristate "TI LP8788 Power Regulators"
 	depends on MFD_LP8788
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index dc3503fb3e30..fee6b8cb80a8 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
 obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o
 obj-$(CONFIG_REGULATOR_LP872X) += lp872x.o
 obj-$(CONFIG_REGULATOR_LP873X) += lp873x-regulator.o
+obj-$(CONFIG_REGULATOR_LP87565) += lp87565-regulator.o
 obj-$(CONFIG_REGULATOR_LP8788) += lp8788-buck.o
 obj-$(CONFIG_REGULATOR_LP8788) += lp8788-ldo.o
 obj-$(CONFIG_REGULATOR_LP8755) += lp8755.o
diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index 0b9d4e3e52c7..e2608fe770b9 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -244,6 +244,82 @@ static const struct regulator_desc axp22x_drivevbus_regulator = {
 	.ops		= &axp20x_ops_sw,
 };
 
+static const struct regulator_linear_range axp803_dcdc234_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x46, 10000),
+	REGULATOR_LINEAR_RANGE(1220000, 0x47, 0x4b, 20000),
+};
+
+static const struct regulator_linear_range axp803_dcdc5_ranges[] = {
+	REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 10000),
+	REGULATOR_LINEAR_RANGE(1140000, 0x21, 0x44, 20000),
+};
+
+static const struct regulator_linear_range axp803_dcdc6_ranges[] = {
+	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000),
+	REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000),
+};
+
+/* AXP806's CLDO2 and AXP809's DLDO1 shares the same range */
+static const struct regulator_linear_range axp803_dldo2_ranges[] = {
+	REGULATOR_LINEAR_RANGE(700000, 0x0, 0x1a, 100000),
+	REGULATOR_LINEAR_RANGE(3400000, 0x1b, 0x1f, 200000),
+};
+
+static const struct regulator_desc axp803_regulators[] = {
+	AXP_DESC(AXP803, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
+		 AXP803_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(0)),
+	AXP_DESC_RANGES(AXP803, DCDC2, "dcdc2", "vin2", axp803_dcdc234_ranges,
+			76, AXP803_DCDC2_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(1)),
+	AXP_DESC_RANGES(AXP803, DCDC3, "dcdc3", "vin3", axp803_dcdc234_ranges,
+			76, AXP803_DCDC3_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(2)),
+	AXP_DESC_RANGES(AXP803, DCDC4, "dcdc4", "vin4", axp803_dcdc234_ranges,
+			76, AXP803_DCDC4_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(3)),
+	AXP_DESC_RANGES(AXP803, DCDC5, "dcdc5", "vin5", axp803_dcdc5_ranges,
+			68, AXP803_DCDC5_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(4)),
+	AXP_DESC_RANGES(AXP803, DCDC6, "dcdc6", "vin6", axp803_dcdc6_ranges,
+			72, AXP803_DCDC6_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(5)),
+	/* secondary switchable output of DCDC1 */
+	AXP_DESC_SW(AXP803, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2,
+		    BIT(7)),
+	AXP_DESC(AXP803, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(5)),
+	AXP_DESC(AXP803, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(6)),
+	AXP_DESC(AXP803, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)),
+	AXP_DESC(AXP803, DLDO1, "dldo1", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)),
+	AXP_DESC_RANGES(AXP803, DLDO2, "dldo2", "dldoin", axp803_dldo2_ranges,
+			32, AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
+			BIT(4)),
+	AXP_DESC(AXP803, DLDO3, "dldo3", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
+	AXP_DESC(AXP803, DLDO4, "dldo4", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)),
+	AXP_DESC(AXP803, ELDO1, "eldo1", "eldoin", 700, 1900, 50,
+		 AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
+	AXP_DESC(AXP803, ELDO2, "eldo2", "eldoin", 700, 1900, 50,
+		 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
+	AXP_DESC(AXP803, ELDO3, "eldo3", "eldoin", 700, 1900, 50,
+		 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
+	AXP_DESC(AXP803, FLDO1, "fldo1", "fldoin", 700, 1450, 50,
+		 AXP803_FLDO1_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(2)),
+	AXP_DESC(AXP803, FLDO2, "fldo2", "fldoin", 700, 1450, 50,
+		 AXP803_FLDO2_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(3)),
+	AXP_DESC_IO(AXP803, LDO_IO0, "ldo-io0", "ips", 700, 3300, 100,
+		    AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
+		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
+	AXP_DESC_IO(AXP803, LDO_IO1, "ldo-io1", "ips", 700, 3300, 100,
+		    AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
+		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
+	AXP_DESC_FIXED(AXP803, RTC_LDO, "rtc-ldo", "ips", 3000),
+};
+
 static const struct regulator_linear_range axp806_dcdca_ranges[] = {
 	REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000),
 	REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000),
@@ -254,11 +330,6 @@ static const struct regulator_linear_range axp806_dcdcd_ranges[] = {
 	REGULATOR_LINEAR_RANGE(1600000, 0x2e, 0x3f, 100000),
 };
 
-static const struct regulator_linear_range axp806_cldo2_ranges[] = {
-	REGULATOR_LINEAR_RANGE(700000, 0x0, 0x1a, 100000),
-	REGULATOR_LINEAR_RANGE(3400000, 0x1b, 0x1f, 200000),
-};
-
 static const struct regulator_desc axp806_regulators[] = {
 	AXP_DESC_RANGES(AXP806, DCDCA, "dcdca", "vina", axp806_dcdca_ranges,
 			72, AXP806_DCDCA_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1,
@@ -289,7 +360,7 @@ static const struct regulator_desc axp806_regulators[] = {
 		 AXP806_BLDO4_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(3)),
 	AXP_DESC(AXP806, CLDO1, "cldo1", "cldoin", 700, 3300, 100,
 		 AXP806_CLDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(4)),
-	AXP_DESC_RANGES(AXP806, CLDO2, "cldo2", "cldoin", axp806_cldo2_ranges,
+	AXP_DESC_RANGES(AXP806, CLDO2, "cldo2", "cldoin", axp803_dldo2_ranges,
 			32, AXP806_CLDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2,
 			BIT(5)),
 	AXP_DESC(AXP806, CLDO3, "cldo3", "cldoin", 700, 3300, 100,
@@ -326,7 +397,7 @@ static const struct regulator_desc axp809_regulators[] = {
 		 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)),
 	AXP_DESC(AXP809, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
 		 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
-	AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp806_cldo2_ranges,
+	AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp803_dldo2_ranges,
 			32, AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
 			BIT(3)),
 	AXP_DESC(AXP809, DLDO2, "dldo2", "dldoin", 700, 3300, 100,
@@ -369,14 +440,21 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
 		def = 1500;
 		step = 75;
 		break;
-	case AXP806_ID:
+	case AXP803_ID:
 		/*
-		 * AXP806 DCDC work frequency setting has the same range and
+		 * AXP803 DCDC work frequency setting has the same range and
 		 * step as AXP22X, but at a different register.
 		 * Fall through to the check below.
 		 * (See include/linux/mfd/axp20x.h)
 		 */
-		reg = AXP806_DCDC_FREQ_CTRL;
+		reg = AXP803_DCDC_FREQ_CTRL;
+	case AXP806_ID:
+		/*
+		 * AXP806 also have DCDC work frequency setting register at a
+		 * different position.
+		 */
+		if (axp20x->variant == AXP806_ID)
+			reg = AXP806_DCDC_FREQ_CTRL;
 	case AXP221_ID:
 	case AXP223_ID:
 	case AXP809_ID:
@@ -475,6 +553,14 @@ static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 work
 		workmode <<= id - AXP22X_DCDC1;
 		break;
 
+	case AXP803_ID:
+		if (id < AXP803_DCDC1 || id > AXP803_DCDC6)
+			return -EINVAL;
+
+		mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP803_DCDC1);
+		workmode <<= id - AXP803_DCDC1;
+		break;
+
 	default:
 		/* should not happen */
 		WARN_ON(1);
@@ -492,20 +578,38 @@ static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id)
 {
 	u32 reg = 0;
 
-	/* Only AXP806 has poly-phase outputs */
-	if (axp20x->variant != AXP806_ID)
-		return false;
+	/*
+	 * Currently in our supported AXP variants, only AXP803 and AXP806
+	 * have polyphase regulators.
+	 */
+	switch (axp20x->variant) {
+	case AXP803_ID:
+		regmap_read(axp20x->regmap, AXP803_POLYPHASE_CTRL, &reg);
+
+		switch (id) {
+		case AXP803_DCDC3:
+			return !!(reg & BIT(6));
+		case AXP803_DCDC6:
+			return !!(reg & BIT(7));
+		}
+		break;
 
-	regmap_read(axp20x->regmap, AXP806_DCDC_MODE_CTRL2, &reg);
+	case AXP806_ID:
+		regmap_read(axp20x->regmap, AXP806_DCDC_MODE_CTRL2, &reg);
+
+		switch (id) {
+		case AXP806_DCDCB:
+			return (((reg & GENMASK(7, 6)) == BIT(6)) ||
+				((reg & GENMASK(7, 6)) == BIT(7)));
+		case AXP806_DCDCC:
+			return ((reg & GENMASK(7, 6)) == BIT(7));
+		case AXP806_DCDCE:
+			return !!(reg & BIT(5));
+		}
+		break;
 
-	switch (id) {
-	case AXP806_DCDCB:
-		return (((reg & GENMASK(7, 6)) == BIT(6)) ||
-			((reg & GENMASK(7, 6)) == BIT(7)));
-	case AXP806_DCDCC:
-		return ((reg & GENMASK(7, 6)) == BIT(7));
-	case AXP806_DCDCE:
-		return !!(reg & BIT(5));
+	default:
+		return false;
 	}
 
 	return false;
@@ -540,6 +644,10 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
 		drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
 						  "x-powers,drive-vbus-en");
 		break;
+	case AXP803_ID:
+		regulators = axp803_regulators;
+		nregulators = AXP803_REG_ID_MAX;
+		break;
 	case AXP806_ID:
 		regulators = axp806_regulators;
 		nregulators = AXP806_REG_ID_MAX;
@@ -579,6 +687,7 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
 		 * name.
 		 */
 		if ((regulators == axp22x_regulators && i == AXP22X_DC1SW) ||
+		    (regulators == axp803_regulators && i == AXP803_DC1SW) ||
 		    (regulators == axp809_regulators && i == AXP809_DC1SW)) {
 			new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
 						GFP_KERNEL);
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index c0d9ae8d0860..919b7f178209 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2767,6 +2767,12 @@ static int _regulator_set_voltage_time(struct regulator_dev *rdev,
 		ramp_delay = rdev->desc->ramp_delay;
 	else if (rdev->constraints->settling_time)
 		return rdev->constraints->settling_time;
+	else if (rdev->constraints->settling_time_up &&
+		 (new_uV > old_uV))
+		return rdev->constraints->settling_time_up;
+	else if (rdev->constraints->settling_time_down &&
+		 (new_uV < old_uV))
+		return rdev->constraints->settling_time_down;
 
 	if (ramp_delay == 0) {
 		rdev_dbg(rdev, "ramp_delay not set\n");
diff --git a/drivers/regulator/lp8755.c b/drivers/regulator/lp8755.c
index db34e1da75ef..244822bb63cd 100644
--- a/drivers/regulator/lp8755.c
+++ b/drivers/regulator/lp8755.c
@@ -99,7 +99,7 @@ static int lp8755_buck_enable_time(struct regulator_dev *rdev)
 
 	ret = lp8755_read(pchip, 0x12 + id, &regval);
 	if (ret < 0) {
-		dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
+		dev_err(pchip->dev, "i2c access error %s\n", __func__);
 		return ret;
 	}
 	return (regval & 0xff) * 100;
@@ -144,7 +144,7 @@ static int lp8755_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
 		goto err_i2c;
 	return ret;
 err_i2c:
-	dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
+	dev_err(pchip->dev, "i2c access error %s\n", __func__);
 	return ret;
 }
 
@@ -175,7 +175,7 @@ static unsigned int lp8755_buck_get_mode(struct regulator_dev *rdev)
 	return REGULATOR_MODE_NORMAL;
 
 err_i2c:
-	dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
+	dev_err(pchip->dev, "i2c access error %s\n", __func__);
 	return 0;
 }
 
@@ -223,7 +223,7 @@ static int lp8755_buck_set_ramp(struct regulator_dev *rdev, int ramp)
 		goto err_i2c;
 	return ret;
 err_i2c:
-	dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
+	dev_err(pchip->dev, "i2c access error %s\n", __func__);
 	return ret;
 }
 
@@ -295,7 +295,7 @@ static int lp8755_init_data(struct lp8755_chip *pchip)
 	return ret;
 
 out_i2c_error:
-	dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
+	dev_err(pchip->dev, "i2c access error %s\n", __func__);
 	return ret;
 }
 
@@ -404,7 +404,7 @@ static irqreturn_t lp8755_irq_handler(int irq, void *data)
 	return IRQ_HANDLED;
 
 err_i2c:
-	dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
+	dev_err(pchip->dev, "i2c access error %s\n", __func__);
 	return IRQ_NONE;
 }
 
@@ -420,7 +420,7 @@ static int lp8755_int_config(struct lp8755_chip *pchip)
 
 	ret = lp8755_read(pchip, 0x0F, &regval);
 	if (ret < 0) {
-		dev_err(pchip->dev, "i2c acceess error %s\n", __func__);
+		dev_err(pchip->dev, "i2c access error %s\n", __func__);
 		return ret;
 	}
 
diff --git a/drivers/regulator/lp87565-regulator.c b/drivers/regulator/lp87565-regulator.c
new file mode 100644
index 000000000000..71e762292529
--- /dev/null
+++ b/drivers/regulator/lp87565-regulator.c
@@ -0,0 +1,237 @@
+/*
+ * Regulator driver for LP87565 PMIC
+ *
+ * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <linux/mfd/lp87565.h>
+
+#define LP87565_REGULATOR(_name, _id, _of, _ops, _n, _vr, _vm, _er, _em, \
+			 _delay, _lr, _cr)				\
+	[_id] = {							\
+		.desc = {						\
+			.name			= _name,		\
+			.supply_name		= _of "-in",		\
+			.id			= _id,			\
+			.of_match		= of_match_ptr(_of),	\
+			.regulators_node	= of_match_ptr("regulators"),\
+			.ops			= &_ops,		\
+			.n_voltages		= _n,			\
+			.type			= REGULATOR_VOLTAGE,	\
+			.owner			= THIS_MODULE,		\
+			.vsel_reg		= _vr,			\
+			.vsel_mask		= _vm,			\
+			.enable_reg		= _er,			\
+			.enable_mask		= _em,			\
+			.ramp_delay		= _delay,		\
+			.linear_ranges		= _lr,			\
+			.n_linear_ranges	= ARRAY_SIZE(_lr),	\
+		},							\
+		.ctrl2_reg = _cr,					\
+	}
+
+struct lp87565_regulator {
+	struct regulator_desc desc;
+	unsigned int ctrl2_reg;
+};
+
+static const struct lp87565_regulator regulators[];
+
+static const struct regulator_linear_range buck0_1_2_3_ranges[] = {
+	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x17, 10000),
+	REGULATOR_LINEAR_RANGE(735000, 0x18, 0x9d, 5000),
+	REGULATOR_LINEAR_RANGE(1420000, 0x9e, 0xff, 20000),
+};
+
+static unsigned int lp87565_buck_ramp_delay[] = {
+	30000, 15000, 10000, 7500, 3800, 1900, 940, 470
+};
+
+/* LP87565 BUCK current limit */
+static const unsigned int lp87565_buck_uA[] = {
+	1500000, 2000000, 2500000, 3000000, 3500000, 4000000, 4500000, 5000000,
+};
+
+static int lp87565_buck_set_ramp_delay(struct regulator_dev *rdev,
+				       int ramp_delay)
+{
+	int id = rdev_get_id(rdev);
+	struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
+	unsigned int reg;
+	int ret;
+
+	if (ramp_delay <= 470)
+		reg = 7;
+	else if (ramp_delay <= 940)
+		reg = 6;
+	else if (ramp_delay <= 1900)
+		reg = 5;
+	else if (ramp_delay <= 3800)
+		reg = 4;
+	else if (ramp_delay <= 7500)
+		reg = 3;
+	else if (ramp_delay <= 10000)
+		reg = 2;
+	else if (ramp_delay <= 15000)
+		reg = 1;
+	else
+		reg = 0;
+
+	ret = regmap_update_bits(lp87565->regmap, regulators[id].ctrl2_reg,
+				 LP87565_BUCK_CTRL_2_SLEW_RATE,
+				 reg << __ffs(LP87565_BUCK_CTRL_2_SLEW_RATE));
+	if (ret) {
+		dev_err(lp87565->dev, "SLEW RATE write failed: %d\n", ret);
+		return ret;
+	}
+
+	rdev->constraints->ramp_delay = lp87565_buck_ramp_delay[reg];
+
+	return 0;
+}
+
+static int lp87565_buck_set_current_limit(struct regulator_dev *rdev,
+					  int min_uA, int max_uA)
+{
+	int id = rdev_get_id(rdev);
+	struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
+	int i;
+
+	for (i = ARRAY_SIZE(lp87565_buck_uA) - 1; i >= 0; i--) {
+		if (lp87565_buck_uA[i] >= min_uA &&
+		    lp87565_buck_uA[i] <= max_uA)
+			return regmap_update_bits(lp87565->regmap,
+						  regulators[id].ctrl2_reg,
+						  LP87565_BUCK_CTRL_2_ILIM,
+						  i << __ffs(LP87565_BUCK_CTRL_2_ILIM));
+	}
+
+	return -EINVAL;
+}
+
+static int lp87565_buck_get_current_limit(struct regulator_dev *rdev)
+{
+	int id = rdev_get_id(rdev);
+	struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
+	int ret;
+	unsigned int val;
+
+	ret = regmap_read(lp87565->regmap, regulators[id].ctrl2_reg, &val);
+	if (ret)
+		return ret;
+
+	val = (val & LP87565_BUCK_CTRL_2_ILIM) >>
+	       __ffs(LP87565_BUCK_CTRL_2_ILIM);
+
+	return (val < ARRAY_SIZE(lp87565_buck_uA)) ?
+			lp87565_buck_uA[val] : -EINVAL;
+}
+
+/* Operations permitted on BUCK0, BUCK1 */
+static struct regulator_ops lp87565_buck_ops = {
+	.is_enabled		= regulator_is_enabled_regmap,
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
+	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
+	.set_ramp_delay		= lp87565_buck_set_ramp_delay,
+	.set_current_limit	= lp87565_buck_set_current_limit,
+	.get_current_limit	= lp87565_buck_get_current_limit,
+};
+
+static const struct lp87565_regulator regulators[] = {
+	LP87565_REGULATOR("BUCK0", LP87565_BUCK_0, "buck0", lp87565_buck_ops,
+			  256, LP87565_REG_BUCK0_VOUT, LP87565_BUCK_VSET,
+			  LP87565_REG_BUCK0_CTRL_1,
+			  LP87565_BUCK_CTRL_1_EN, 3800,
+			  buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
+	LP87565_REGULATOR("BUCK1", LP87565_BUCK_1, "buck1", lp87565_buck_ops,
+			  256, LP87565_REG_BUCK1_VOUT, LP87565_BUCK_VSET,
+			  LP87565_REG_BUCK1_CTRL_1,
+			  LP87565_BUCK_CTRL_1_EN, 3800,
+			  buck0_1_2_3_ranges, LP87565_REG_BUCK1_CTRL_2),
+	LP87565_REGULATOR("BUCK2", LP87565_BUCK_2, "buck2", lp87565_buck_ops,
+			  256, LP87565_REG_BUCK2_VOUT, LP87565_BUCK_VSET,
+			  LP87565_REG_BUCK2_CTRL_1,
+			  LP87565_BUCK_CTRL_1_EN, 3800,
+			  buck0_1_2_3_ranges, LP87565_REG_BUCK2_CTRL_2),
+	LP87565_REGULATOR("BUCK3", LP87565_BUCK_3, "buck3", lp87565_buck_ops,
+			  256, LP87565_REG_BUCK3_VOUT, LP87565_BUCK_VSET,
+			  LP87565_REG_BUCK3_CTRL_1,
+			  LP87565_BUCK_CTRL_1_EN, 3800,
+			  buck0_1_2_3_ranges, LP87565_REG_BUCK3_CTRL_2),
+	LP87565_REGULATOR("BUCK10", LP87565_BUCK_10, "buck10", lp87565_buck_ops,
+			  256, LP87565_REG_BUCK0_VOUT, LP87565_BUCK_VSET,
+			  LP87565_REG_BUCK0_CTRL_1,
+			  LP87565_BUCK_CTRL_1_EN, 3800,
+			  buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
+	LP87565_REGULATOR("BUCK23", LP87565_BUCK_23, "buck23", lp87565_buck_ops,
+			  256, LP87565_REG_BUCK2_VOUT, LP87565_BUCK_VSET,
+			  LP87565_REG_BUCK2_CTRL_1,
+			  LP87565_BUCK_CTRL_1_EN, 3800,
+			  buck0_1_2_3_ranges, LP87565_REG_BUCK2_CTRL_2),
+};
+
+static int lp87565_regulator_probe(struct platform_device *pdev)
+{
+	struct lp87565 *lp87565 = dev_get_drvdata(pdev->dev.parent);
+	struct regulator_config config = { };
+	struct regulator_dev *rdev;
+	int i, min_idx = LP87565_BUCK_1, max_idx = LP87565_BUCK_3;
+
+	platform_set_drvdata(pdev, lp87565);
+
+	config.dev = &pdev->dev;
+	config.dev->of_node = lp87565->dev->of_node;
+	config.driver_data = lp87565;
+	config.regmap = lp87565->regmap;
+
+	if (lp87565->dev_type == LP87565_DEVICE_TYPE_LP87565_Q1) {
+		min_idx = LP87565_BUCK_10;
+		max_idx = LP87565_BUCK_23;
+	}
+
+	for (i = min_idx; i <= max_idx; i++) {
+		rdev = devm_regulator_register(&pdev->dev, &regulators[i].desc,
+					       &config);
+		if (IS_ERR(rdev)) {
+			dev_err(lp87565->dev, "failed to register %s regulator\n",
+				pdev->name);
+			return PTR_ERR(rdev);
+		}
+	}
+
+	return 0;
+}
+
+static const struct platform_device_id lp87565_regulator_id_table[] = {
+	{ "lp87565-regulator", },
+	{ "lp87565-q1-regulator", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, lp87565_regulator_id_table);
+
+static struct platform_driver lp87565_regulator_driver = {
+	.driver = {
+		.name = "lp87565-pmic",
+	},
+	.probe = lp87565_regulator_probe,
+	.id_table = lp87565_regulator_id_table,
+};
+module_platform_driver(lp87565_regulator_driver);
+
+MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
+MODULE_DESCRIPTION("LP87565 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/max8997-regulator.c b/drivers/regulator/max8997-regulator.c
index efabc0ea0e96..559b9ac45404 100644
--- a/drivers/regulator/max8997-regulator.c
+++ b/drivers/regulator/max8997-regulator.c
@@ -428,12 +428,9 @@ static int max8997_set_voltage_charger_cv(struct regulator_dev *rdev,
 	if (max_uV < 4000000 || min_uV > 4350000)
 		return -EINVAL;
 
-	if (min_uV <= 4000000) {
-		if (max_uV >= 4000000)
-			return -EINVAL;
-		else
-			val = 0x1;
-	} else if (min_uV <= 4200000 && max_uV >= 4200000)
+	if (min_uV <= 4000000)
+		val = 0x1;
+	else if (min_uV <= 4200000 && max_uV >= 4200000)
 		val = 0x0;
 	else {
 		lb = (min_uV - 4000001) / 20000 + 2;
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 09d677d5d3f0..96bf75458da5 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -90,6 +90,25 @@ static void of_get_regulation_constraints(struct device_node *np,
 	if (!ret)
 		constraints->settling_time = pval;
 
+	ret = of_property_read_u32(np, "regulator-settling-time-up-us", &pval);
+	if (!ret)
+		constraints->settling_time_up = pval;
+	if (constraints->settling_time_up && constraints->settling_time) {
+		pr_warn("%s: ambiguous configuration for settling time, ignoring 'regulator-settling-time-up-us'\n",
+			np->name);
+		constraints->settling_time_up = 0;
+	}
+
+	ret = of_property_read_u32(np, "regulator-settling-time-down-us",
+				   &pval);
+	if (!ret)
+		constraints->settling_time_down = pval;
+	if (constraints->settling_time_down && constraints->settling_time) {
+		pr_warn("%s: ambiguous configuration for settling time, ignoring 'regulator-settling-time-down-us'\n",
+			np->name);
+		constraints->settling_time_down = 0;
+	}
+
 	ret = of_property_read_u32(np, "regulator-enable-ramp-delay", &pval);
 	if (!ret)
 		constraints->enable_time = pval;
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 31ae5ee3a80d..bb5ab7d78895 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -264,6 +264,13 @@ static struct palmas_regs_info tps65917_regs_info[] = {
 		.sleep_id	= TPS65917_EXTERNAL_REQSTR_ID_SMPS5,
 	},
 	{
+		.name		= "SMPS12",
+		.sname		= "smps1-in",
+		.vsel_addr	= TPS65917_SMPS1_VOLTAGE,
+		.ctrl_addr	= TPS65917_SMPS1_CTRL,
+		.sleep_id	= TPS65917_EXTERNAL_REQSTR_ID_SMPS12,
+	},
+	{
 		.name		= "LDO1",
 		.sname		= "ldo1-in",
 		.vsel_addr	= TPS65917_LDO1_VOLTAGE,
@@ -367,6 +374,7 @@ static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = {
 	EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2),
 	EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3),
 	EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4),
+	EXTERNAL_REQUESTOR_TPS65917(SMPS12, 1, 5),
 	EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0),
 	EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1),
 	EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2),
@@ -1305,7 +1313,8 @@ static int tps65917_smps_registration(struct palmas_pmic *pmic,
 		 */
 		desc = &pmic->desc[id];
 		desc->n_linear_ranges = 3;
-		if ((id == TPS65917_REG_SMPS2) && pmic->smps12)
+		if ((id == TPS65917_REG_SMPS2 || id == TPS65917_REG_SMPS1) &&
+		    pmic->smps12)
 			continue;
 
 		/* Initialise sleep/init values from platform data */
@@ -1427,6 +1436,7 @@ static struct of_regulator_match tps65917_matches[] = {
 	{ .name = "smps3", },
 	{ .name = "smps4", },
 	{ .name = "smps5", },
+	{ .name = "smps12",},
 	{ .name = "ldo1", },
 	{ .name = "ldo2", },
 	{ .name = "ldo3", },
@@ -1455,7 +1465,7 @@ static struct palmas_pmic_driver_data palmas_ddata = {
 
 static struct palmas_pmic_driver_data tps65917_ddata = {
 	.smps_start = TPS65917_REG_SMPS1,
-	.smps_end = TPS65917_REG_SMPS5,
+	.smps_end = TPS65917_REG_SMPS12,
 	.ldo_begin = TPS65917_REG_LDO1,
 	.ldo_end = TPS65917_REG_LDO5,
 	.max_reg = TPS65917_NUM_REGS,
@@ -1491,7 +1501,7 @@ static int palmas_dt_to_pdata(struct device *dev,
 	}
 
 	for (idx = 0; idx < ddata->max_reg; idx++) {
-		static struct of_regulator_match *match;
+		struct of_regulator_match *match;
 		struct palmas_reg_init *rinit;
 		struct device_node *np;
 
@@ -1643,8 +1653,10 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN)
+	if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) {
 		pmic->smps123 = 1;
+		pmic->smps12 = 1;
+	}
 
 	if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN)
 		pmic->smps457 = 1;
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index cde56cfe8446..965b027e31b3 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -119,6 +119,17 @@ enum axp20x_variants {
 #define AXP806_BUS_ADDR_EXT		0xfe
 #define AXP806_REG_ADDR_EXT		0xff
 
+#define AXP803_POLYPHASE_CTRL		0x14
+#define AXP803_FLDO1_V_OUT		0x1c
+#define AXP803_FLDO2_V_OUT		0x1d
+#define AXP803_DCDC1_V_OUT		0x20
+#define AXP803_DCDC2_V_OUT		0x21
+#define AXP803_DCDC3_V_OUT		0x22
+#define AXP803_DCDC4_V_OUT		0x23
+#define AXP803_DCDC5_V_OUT		0x24
+#define AXP803_DCDC6_V_OUT		0x25
+#define AXP803_DCDC_FREQ_CTRL		0x3b
+
 /* Interrupt */
 #define AXP152_IRQ1_EN			0x40
 #define AXP152_IRQ2_EN			0x41
@@ -350,6 +361,32 @@ enum {
 	AXP809_REG_ID_MAX,
 };
 
+enum {
+	AXP803_DCDC1 = 0,
+	AXP803_DCDC2,
+	AXP803_DCDC3,
+	AXP803_DCDC4,
+	AXP803_DCDC5,
+	AXP803_DCDC6,
+	AXP803_DC1SW,
+	AXP803_ALDO1,
+	AXP803_ALDO2,
+	AXP803_ALDO3,
+	AXP803_DLDO1,
+	AXP803_DLDO2,
+	AXP803_DLDO3,
+	AXP803_DLDO4,
+	AXP803_ELDO1,
+	AXP803_ELDO2,
+	AXP803_ELDO3,
+	AXP803_FLDO1,
+	AXP803_FLDO2,
+	AXP803_RTC_LDO,
+	AXP803_LDO_IO0,
+	AXP803_LDO_IO1,
+	AXP803_REG_ID_MAX,
+};
+
 /* IRQs */
 enum {
 	AXP152_IRQ_LDO0IN_CONNECT = 1,
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index 5c9a1d44c125..6dec43826303 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -250,6 +250,7 @@ enum tps65917_regulators {
 	TPS65917_REG_SMPS3,
 	TPS65917_REG_SMPS4,
 	TPS65917_REG_SMPS5,
+	TPS65917_REG_SMPS12,
 	/* LDO regulators */
 	TPS65917_REG_LDO1,
 	TPS65917_REG_LDO2,
@@ -317,6 +318,7 @@ enum tps65917_external_requestor_id {
 	TPS65917_EXTERNAL_REQSTR_ID_SMPS3,
 	TPS65917_EXTERNAL_REQSTR_ID_SMPS4,
 	TPS65917_EXTERNAL_REQSTR_ID_SMPS5,
+	TPS65917_EXTERNAL_REQSTR_ID_SMPS12,
 	TPS65917_EXTERNAL_REQSTR_ID_LDO1,
 	TPS65917_EXTERNAL_REQSTR_ID_LDO2,
 	TPS65917_EXTERNAL_REQSTR_ID_LDO3,
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index 117699d1f7df..9cd4fef37203 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -110,6 +110,10 @@ struct regulator_state {
  * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
  * @settling_time: Time to settle down after voltage change when voltage
  *		   change is non-linear (unit: microseconds).
+ * @settling_time_up: Time to settle down after voltage increase when voltage
+ *		      change is non-linear (unit: microseconds).
+ * @settling_time_down : Time to settle down after voltage decrease when
+ *			 voltage change is non-linear (unit: microseconds).
  * @active_discharge: Enable/disable active discharge. The enum
  *		      regulator_active_discharge values are used for
  *		      initialisation.
@@ -152,6 +156,8 @@ struct regulation_constraints {
 
 	unsigned int ramp_delay;
 	unsigned int settling_time;
+	unsigned int settling_time_up;
+	unsigned int settling_time_down;
 	unsigned int enable_time;
 
 	unsigned int active_discharge;