Merge tag 'regulator-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This is an extremely quiet release for the regulator API, we've got a
  small set of bug fixes and minor feature enhancements for drivers plus
  a couple of more visible changes:

   - add support for ramp times in regulators that don't use selectors.

   - new driver for LTC3676"

* tag 'regulator-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: dbx500: remove unused functions in dbx500-prcmu.c
  regulator: pv88080: Update regulator for PV88080 BB silicon support
  regulator: core: don't return error with inadequate reason
  regulator: tps65910: Work around silicon erratum SWCZ010
  regulator: core: Add set_voltage_time op
  regulator: core: Don't skip set_voltage_time when ramp delay disabled
  regulator: core: Simplify error flow in _regulator_do_set_voltage()
  regulator: core: Use local ops variable in _regulator_do_set_voltage()
  regulator: hi6421: mark hi6421_regulator_ldo_get_optimum_mode() static
  regulator: Kconfig: Fix typo
  regulator: bindings: Use the correct symbol for second
  regulator: Remove support for optional supplies in the bulk API
  regulator: Add LTC3676 support
  regulator: rk808: Delete owner assignment
  regulator: tps65218: do not disable DCDC3 during poweroff on broken PMICs
  mfd: tps65218: add version check to the PMIC probe

Documentation/devicetree/bindings/regulator/ltc3676.txt

+Linear Technology LTC3676 8-output regulators
+
+Required properties:
+- compatible: "lltc,ltc3676"
+- reg: I2C slave address
+
+Required child node:
+- regulators: Contains eight regulator child nodes sw1, sw2, sw3, sw4,
+  ldo1, ldo2, ldo3, and ldo4, specifying the initialization data as
+  documented in Documentation/devicetree/bindings/regulator/regulator.txt.
+
+Each regulator is defined using the standard binding for regulators. The
+nodes for sw1, sw2, sw3, sw4, ldo1, ldo2 and ldo4 additionally need to specify
+the resistor values of their external feedback voltage dividers:
+
+Required properties (not on ldo3):
+- lltc,fb-voltage-divider: An array of two integers containing the resistor
+  values R1 and R2 of the feedback voltage divider in ohms.
+
+Regulators sw1, sw2, sw3, sw4 can regulate the feedback reference from:
+412.5mV to 800mV in 12.5 mV steps. The output voltage thus ranges between
+0.4125 * (1 + R1/R2) V and 0.8 * (1 + R1/R2) V.
+
+Regulators ldo1, ldo2, and ldo4 have a fixed 0.725 V reference and thus output
+0.725 * (1 + R1/R2) V. The ldo3 regulator is fixed to 1.8 V.  The ldo1 standby
+regulator can not be disabled and thus should have the regulator-always-on
+property set.
+
+Example:
+
+	ltc3676: pmic@3c {
+		compatible = "lltc,ltc3676";
+		reg = <0x3c>;
+
+		regulators {
+			sw1_reg: sw1 {
+				regulator-min-microvolt = <674400>;
+				regulator-max-microvolt = <1308000>;
+				lltc,fb-voltage-divider = <127000 200000>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw2_reg: sw2 {
+				regulator-min-microvolt = <1033310>;
+				regulator-max-microvolt = <200400>;
+				lltc,fb-voltage-divider = <301000 200000>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw3_reg: sw3 {
+				regulator-min-microvolt = <674400>;
+				regulator-max-microvolt = <130800>;
+				lltc,fb-voltage-divider = <127000 200000>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw4_reg: sw4 {
+				regulator-min-microvolt = <868310>;
+				regulator-max-microvolt = <168400>;
+				lltc,fb-voltage-divider = <221000 200000>;
+				regulator-ramp-delay = <7000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2_reg: ldo2 {
+				regulator-min-microvolt = <2490375>;
+				regulator-max-microvolt = <2490375>;
+				lltc,fb-voltage-divider = <487000 200000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3_reg: ldo3 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-boot-on;
+			};
+
+			ldo4_reg: ldo4 {
+				regulator-min-microvolt = <3023250>;
+				regulator-max-microvolt = <3023250>;
+				lltc,fb-voltage-divider = <634000 200000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};

Documentation/devicetree/bindings/regulator/pv88080.txt

 * Powerventure Semiconductor PV88080 Voltage Regulator
 
 Required properties:
-- compatible: "pvs,pv88080".
-- reg: I2C slave address, usually 0x49.
+- compatible: Must be one of the following, depending on the
+  silicon version:
+	- "pvs,pv88080" (DEPRECATED)
+
+	- "pvs,pv88080-aa" for PV88080 AA or AB silicon
+	- "pvs,pv88080-ba" for PV88080 BA or BB silicon
+  NOTE: The use of the compatibles with no silicon version is deprecated.
+- reg: I2C slave address, usually 0x49
 - interrupts: the interrupt outputs of the controller
 - regulators: A node that houses a sub-node for each regulator within the
   device. Each sub-node is identified using the node's name, with valid
   values listed below. The content of each sub-node is defined by the
   standard binding for regulators; see regulator.txt.
-  BUCK1, BUCK2, and BUCK3.
+  BUCK1, BUCK2, BUCK3 and HVBUCK.
 
 Optional properties:
 - Any optional property defined in regulator.txt
 
-Example
+Example:
 
 	pmic: pv88080@49 {
-		compatible = "pvs,pv88080";
+		compatible = "pvs,pv88080-ba";
 		reg = <0x49>;
 		interrupt-parent = <&gpio>;
 		interrupts = <24 24>;
@@ -45,5 +51,12 @@ Example
 				regulator-min-microamp 	= <1496000>;
 				regulator-max-microamp 	= <4189000>;
 			};
+
+			HVBUCK {
+				regulator-name = "hvbuck";
+				regulator-min-microvolt = <   5000>;
+				regulator-max-microvolt = <1275000>;
+ 			};
 		};
 	};
+

Documentation/devicetree/bindings/regulator/regulator.txt

@@ -13,7 +13,7 @@ Optional properties:
 - regulator-allow-bypass: allow the regulator to go into bypass mode
 - regulator-allow-set-load: allow the regulator performance level to be configured
 - <name>-supply: phandle to the parent supply/regulator node
-- regulator-ramp-delay: ramp delay for regulator(in uV/uS)
+- regulator-ramp-delay: ramp delay for regulator(in uV/us)
   For hardware which supports disabling ramp rate, it should be explicitly
   initialised to zero (regulator-ramp-delay = <0>) for disabling ramp delay.
 - regulator-enable-ramp-delay: The time taken, in microseconds, for the supply

drivers/mfd/tps65218.c

@@ -219,6 +219,7 @@ static int tps65218_probe(struct i2c_client *client,
 	struct tps65218 *tps;
 	const struct of_device_id *match;
 	int ret;
+	unsigned int chipid;
 
 	match = of_match_device(of_tps65218_match_table, &client->dev);
 	if (!match) {
@@ -250,6 +251,14 @@ static int tps65218_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
+	ret = tps65218_reg_read(tps, TPS65218_REG_CHIPID, &chipid);
+	if (ret) {
+		dev_err(tps->dev, "Failed to read chipid: %d\n", ret);
+		return ret;
+	}
+
+	tps->rev = chipid & TPS65218_CHIPID_REV_MASK;
+
 	ret = of_platform_populate(client->dev.of_node, NULL, NULL,
 				   &client->dev);
 	if (ret < 0)

drivers/regulator/Kconfig

@@ -353,6 +353,14 @@ config REGULATOR_LTC3589
 	  This enables support for the LTC3589, LTC3589-1, and LTC3589-2
 	  8-output regulators controlled via I2C.
 
+config REGULATOR_LTC3676
+	tristate "LTC3676 8-output voltage regulator"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  This enables support for the LTC3676
+	  8-output regulators controlled via I2C.
+
 config REGULATOR_MAX14577
 	tristate "Maxim 14577/77836 regulator"
 	depends on MFD_MAX14577
@@ -820,7 +828,7 @@ config REGULATOR_TPS65912
 	    This driver supports TPS65912 voltage regulator chip.
 
 config REGULATOR_TPS80031
-	tristate "TI TPS80031/TPS80032 power regualtor driver"
+	tristate "TI TPS80031/TPS80032 power regulator driver"
 	depends on MFD_TPS80031
 	help
 	  TPS80031/ TPS80032 Fully Integrated Power Management with Power

drivers/regulator/Makefile

@@ -47,6 +47,7 @@ obj-$(CONFIG_REGULATOR_LP8788) += lp8788-buck.o
 obj-$(CONFIG_REGULATOR_LP8788) += lp8788-ldo.o
 obj-$(CONFIG_REGULATOR_LP8755) += lp8755.o
 obj-$(CONFIG_REGULATOR_LTC3589) += ltc3589.o
+obj-$(CONFIG_REGULATOR_LTC3676) += ltc3676.o
 obj-$(CONFIG_REGULATOR_MAX14577) += max14577-regulator.o
 obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
 obj-$(CONFIG_REGULATOR_MAX77620) += max77620-regulator.o

drivers/regulator/core.c

@@ -679,24 +679,6 @@ static int drms_uA_update(struct regulator_dev *rdev)
 	    !rdev->desc->ops->set_load)
 		return -EINVAL;
 
-	/* get output voltage */
-	output_uV = _regulator_get_voltage(rdev);
-	if (output_uV <= 0) {
-		rdev_err(rdev, "invalid output voltage found\n");
-		return -EINVAL;
-	}
-
-	/* get input voltage */
-	input_uV = 0;
-	if (rdev->supply)
-		input_uV = regulator_get_voltage(rdev->supply);
-	if (input_uV <= 0)
-		input_uV = rdev->constraints->input_uV;
-	if (input_uV <= 0) {
-		rdev_err(rdev, "invalid input voltage found\n");
-		return -EINVAL;
-	}
-
 	/* calc total requested load */
 	list_for_each_entry(sibling, &rdev->consumer_list, list)
 		current_uA += sibling->uA_load;
@@ -709,6 +691,24 @@ static int drms_uA_update(struct regulator_dev *rdev)
 		if (err < 0)
 			rdev_err(rdev, "failed to set load %d\n", current_uA);
 	} else {
+		/* get output voltage */
+		output_uV = _regulator_get_voltage(rdev);
+		if (output_uV <= 0) {
+			rdev_err(rdev, "invalid output voltage found\n");
+			return -EINVAL;
+		}
+
+		/* get input voltage */
+		input_uV = 0;
+		if (rdev->supply)
+			input_uV = regulator_get_voltage(rdev->supply);
+		if (input_uV <= 0)
+			input_uV = rdev->constraints->input_uV;
+		if (input_uV <= 0) {
+			rdev_err(rdev, "invalid input voltage found\n");
+			return -EINVAL;
+		}
+
 		/* now get the optimum mode for our new total regulator load */
 		mode = rdev->desc->ops->get_optimum_mode(rdev, input_uV,
 							 output_uV, current_uA);
@@ -2743,6 +2743,24 @@ static int _regulator_call_set_voltage_sel(struct regulator_dev *rdev,
 	return ret;
 }
 
+static int _regulator_set_voltage_time(struct regulator_dev *rdev,
+				       int old_uV, int new_uV)
+{
+	unsigned int ramp_delay = 0;
+
+	if (rdev->constraints->ramp_delay)
+		ramp_delay = rdev->constraints->ramp_delay;
+	else if (rdev->desc->ramp_delay)
+		ramp_delay = rdev->desc->ramp_delay;
+
+	if (ramp_delay == 0) {
+		rdev_warn(rdev, "ramp_delay not set\n");
+		return 0;
+	}
+
+	return DIV_ROUND_UP(abs(new_uV - old_uV), ramp_delay);
+}
+
 static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 				     int min_uV, int max_uV)
 {
@@ -2751,6 +2769,8 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 	int best_val = 0;
 	unsigned int selector;
 	int old_selector = -1;
+	const struct regulator_ops *ops = rdev->desc->ops;
+	int old_uV = _regulator_get_voltage(rdev);
 
 	trace_regulator_set_voltage(rdev_get_name(rdev), min_uV, max_uV);
 
@@ -2762,29 +2782,28 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 	 * info to call set_voltage_time_sel().
 	 */
 	if (_regulator_is_enabled(rdev) &&
-	    rdev->desc->ops->set_voltage_time_sel &&
-	    rdev->desc->ops->get_voltage_sel) {
-		old_selector = rdev->desc->ops->get_voltage_sel(rdev);
+	    ops->set_voltage_time_sel && ops->get_voltage_sel) {
+		old_selector = ops->get_voltage_sel(rdev);
 		if (old_selector < 0)
 			return old_selector;
 	}
 
-	if (rdev->desc->ops->set_voltage) {
+	if (ops->set_voltage) {
 		ret = _regulator_call_set_voltage(rdev, min_uV, max_uV,
 						  &selector);
 
 		if (ret >= 0) {
-			if (rdev->desc->ops->list_voltage)
-				best_val = rdev->desc->ops->list_voltage(rdev,
-									 selector);
+			if (ops->list_voltage)
+				best_val = ops->list_voltage(rdev,
+							     selector);
 			else
 				best_val = _regulator_get_voltage(rdev);
 		}
 
-	} else if (rdev->desc->ops->set_voltage_sel) {
+	} else if (ops->set_voltage_sel) {
 		ret = regulator_map_voltage(rdev, min_uV, max_uV);
 		if (ret >= 0) {
-			best_val = rdev->desc->ops->list_voltage(rdev, ret);
+			best_val = ops->list_voltage(rdev, ret);
 			if (min_uV <= best_val && max_uV >= best_val) {
 				selector = ret;
 				if (old_selector == selector)
@@ -2800,34 +2819,50 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 		ret = -EINVAL;
 	}
 
-	/* Call set_voltage_time_sel if successfully obtained old_selector */
-	if (ret == 0 && !rdev->constraints->ramp_disable && old_selector >= 0
-		&& old_selector != selector) {
+	if (ret)
+		goto out;
 
-		delay = rdev->desc->ops->set_voltage_time_sel(rdev,
-						old_selector, selector);
-		if (delay < 0) {
-			rdev_warn(rdev, "set_voltage_time_sel() failed: %d\n",
-				  delay);
-			delay = 0;
+	if (ops->set_voltage_time_sel) {
+		/*
+		 * Call set_voltage_time_sel if successfully obtained
+		 * old_selector
+		 */
+		if (old_selector >= 0 && old_selector != selector)
+			delay = ops->set_voltage_time_sel(rdev, old_selector,
+							  selector);
+	} else {
+		if (old_uV != best_val) {
+			if (ops->set_voltage_time)
+				delay = ops->set_voltage_time(rdev, old_uV,
+							      best_val);
+			else
+				delay = _regulator_set_voltage_time(rdev,
+								    old_uV,
+								    best_val);
 		}
+	}
 
-		/* Insert any necessary delays */
-		if (delay >= 1000) {
-			mdelay(delay / 1000);
-			udelay(delay % 1000);
-		} else if (delay) {
-			udelay(delay);
-		}
+	if (delay < 0) {
+		rdev_warn(rdev, "failed to get delay: %d\n", delay);
+		delay = 0;
 	}
 
-	if (ret == 0 && best_val >= 0) {
+	/* Insert any necessary delays */
+	if (delay >= 1000) {
+		mdelay(delay / 1000);
+		udelay(delay % 1000);
+	} else if (delay) {
+		udelay(delay);
+	}
+
+	if (best_val >= 0) {
 		unsigned long data = best_val;
 
 		_notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE,
 				     (void *)data);
 	}
 
+out:
 	trace_regulator_set_voltage_complete(rdev_get_name(rdev), best_val);
 
 	return ret;
@@ -2998,9 +3033,13 @@ int regulator_set_voltage_time(struct regulator *regulator,
 	int voltage;
 	int i;
 
+	if (ops->set_voltage_time)
+		return ops->set_voltage_time(rdev, old_uV, new_uV);
+	else if (!ops->set_voltage_time_sel)
+		return _regulator_set_voltage_time(rdev, old_uV, new_uV);
+
 	/* Currently requires operations to do this */
-	if (!ops->list_voltage || !ops->set_voltage_time_sel
-	    || !rdev->desc->n_voltages)
+	if (!ops->list_voltage || !rdev->desc->n_voltages)
 		return -EINVAL;
 
 	for (i = 0; i < rdev->desc->n_voltages; i++) {
@@ -3039,19 +3078,8 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
 				   unsigned int old_selector,
 				   unsigned int new_selector)
 {
-	unsigned int ramp_delay = 0;
 	int old_volt, new_volt;
 
-	if (rdev->constraints->ramp_delay)
-		ramp_delay = rdev->constraints->ramp_delay;
-	else if (rdev->desc->ramp_delay)
-		ramp_delay = rdev->desc->ramp_delay;
-
-	if (ramp_delay == 0) {
-		rdev_warn(rdev, "ramp_delay not set\n");
-		return 0;
-	}
-
 	/* sanity check */
 	if (!rdev->desc->ops->list_voltage)
 		return -EINVAL;
@@ -3059,7 +3087,11 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
 	old_volt = rdev->desc->ops->list_voltage(rdev, old_selector);
 	new_volt = rdev->desc->ops->list_voltage(rdev, new_selector);
 
-	return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
+	if (rdev->desc->ops->set_voltage_time)
+		return rdev->desc->ops->set_voltage_time(rdev, old_volt,
+							 new_volt);
+	else
+		return _regulator_set_voltage_time(rdev, old_volt, new_volt);
 }
 EXPORT_SYMBOL_GPL(regulator_set_voltage_time_sel);
 
@@ -3483,10 +3515,8 @@ int regulator_bulk_get(struct device *dev, int num_consumers,
 		consumers[i].consumer = NULL;
 
 	for (i = 0; i < num_consumers; i++) {
-		consumers[i].consumer = _regulator_get(dev,
-						       consumers[i].supply,
-						       false,
-						       !consumers[i].optional);
+		consumers[i].consumer = regulator_get(dev,
+						      consumers[i].supply);
 		if (IS_ERR(consumers[i].consumer)) {
 			ret = PTR_ERR(consumers[i].consumer);
 			dev_err(dev, "Failed to get supply '%s': %d\n",

drivers/regulator/dbx500-prcmu.c

@@ -75,24 +75,6 @@ static struct ux500_regulator_debug {
 	u8 *state_after_suspend;
 } rdebug;
 
-void ux500_regulator_suspend_debug(void)
-{
-	int i;
-
-	for (i = 0; i < rdebug.num_regulators; i++)
-		rdebug.state_before_suspend[i] =
-			rdebug.regulator_array[i].is_enabled;
-}
-
-void ux500_regulator_resume_debug(void)
-{
-	int i;
-
-	for (i = 0; i < rdebug.num_regulators; i++)
-		rdebug.state_after_suspend[i] =
-			rdebug.regulator_array[i].is_enabled;
-}
-
 static int ux500_regulator_power_state_cnt_print(struct seq_file *s, void *p)
 {
 	/* print power state count */

drivers/regulator/devres.c

@@ -164,11 +164,8 @@ int devm_regulator_bulk_get(struct device *dev, int num_consumers,
 		consumers[i].consumer = NULL;
 
 	for (i = 0; i < num_consumers; i++) {
-		consumers[i].consumer = _devm_regulator_get(dev,
-							    consumers[i].supply,
-							    consumers[i].optional ?
-								OPTIONAL_GET :
-								NORMAL_GET);
+		consumers[i].consumer = devm_regulator_get(dev,
+							   consumers[i].supply);
 		if (IS_ERR(consumers[i].consumer)) {
 			ret = PTR_ERR(consumers[i].consumer);
 			dev_err(dev, "Failed to get supply '%s': %d\n",

drivers/regulator/hi6421-regulator.c

@@ -477,7 +477,8 @@ static int hi6421_regulator_buck_set_mode(struct regulator_dev *rdev,
 	return 0;
 }
 
-unsigned int hi6421_regulator_ldo_get_optimum_mode(struct regulator_dev *rdev,
+static unsigned int
+hi6421_regulator_ldo_get_optimum_mode(struct regulator_dev *rdev,
 			int input_uV, int output_uV, int load_uA)
 {
 	struct hi6421_regulator_info *info = rdev_get_drvdata(rdev);

drivers/regulator/pv88080-regulator.h

@@ -17,55 +17,75 @@
 #define __PV88080_REGISTERS_H__
 
 /* System Control and Event Registers */
-#define	PV88080_REG_EVENT_A			0x04
-#define	PV88080_REG_MASK_A			0x09
-#define	PV88080_REG_MASK_B			0x0a
-#define	PV88080_REG_MASK_C			0x0b
-
-/* Regulator Registers */
-#define	PV88080_REG_BUCK1_CONF0			0x27
-#define	PV88080_REG_BUCK1_CONF1			0x28
-#define	PV88080_REG_BUCK1_CONF2			0x59
-#define	PV88080_REG_BUCK1_CONF5			0x5c
-#define	PV88080_REG_BUCK2_CONF0			0x29
-#define	PV88080_REG_BUCK2_CONF1			0x2a
-#define	PV88080_REG_BUCK2_CONF2			0x61
-#define	PV88080_REG_BUCK2_CONF5			0x64
-#define	PV88080_REG_BUCK3_CONF0			0x2b
-#define	PV88080_REG_BUCK3_CONF1			0x2c
-#define	PV88080_REG_BUCK3_CONF2			0x69
-#define	PV88080_REG_BUCK3_CONF5			0x6c
+#define	PV88080_REG_EVENT_A				0x04
+#define	PV88080_REG_MASK_A				0x09
+#define	PV88080_REG_MASK_B				0x0A
+#define	PV88080_REG_MASK_C				0x0B
+
+/* Regulator Registers - rev. AA */
+#define PV88080AA_REG_HVBUCK_CONF1		0x2D
+#define PV88080AA_REG_HVBUCK_CONF2		0x2E
+#define	PV88080AA_REG_BUCK1_CONF0		0x27
+#define	PV88080AA_REG_BUCK1_CONF1		0x28
+#define	PV88080AA_REG_BUCK1_CONF2		0x59
+#define	PV88080AA_REG_BUCK1_CONF5		0x5C
+#define	PV88080AA_REG_BUCK2_CONF0		0x29
+#define	PV88080AA_REG_BUCK2_CONF1		0x2A
+#define	PV88080AA_REG_BUCK2_CONF2		0x61
+#define	PV88080AA_REG_BUCK2_CONF5		0x64
+#define	PV88080AA_REG_BUCK3_CONF0		0x2B
+#define	PV88080AA_REG_BUCK3_CONF1		0x2C
+#define	PV88080AA_REG_BUCK3_CONF2		0x69
+#define	PV88080AA_REG_BUCK3_CONF5		0x6C
+
+/* Regulator Registers - rev. BA */
+#define	PV88080BA_REG_HVBUCK_CONF1		0x33
+#define	PV88080BA_REG_HVBUCK_CONF2		0x34
+#define	PV88080BA_REG_BUCK1_CONF0		0x2A
+#define	PV88080BA_REG_BUCK1_CONF1		0x2C
+#define	PV88080BA_REG_BUCK1_CONF2		0x5A
+#define	PV88080BA_REG_BUCK1_CONF5		0x5D
+#define	PV88080BA_REG_BUCK2_CONF0		0x2D
+#define	PV88080BA_REG_BUCK2_CONF1		0x2F
+#define	PV88080BA_REG_BUCK2_CONF2		0x63
+#define	PV88080BA_REG_BUCK2_CONF5		0x66
+#define	PV88080BA_REG_BUCK3_CONF0		0x30
+#define	PV88080BA_REG_BUCK3_CONF1		0x32
+#define	PV88080BA_REG_BUCK3_CONF2		0x6C
+#define	PV88080BA_REG_BUCK3_CONF5		0x6F
 
 /* PV88080_REG_EVENT_A (addr=0x04) */
 #define	PV88080_E_VDD_FLT				0x01
-#define	PV88080_E_OVER_TEMP			0x02
+#define	PV88080_E_OVER_TEMP				0x02
 
 /* PV88080_REG_MASK_A (addr=0x09) */
 #define	PV88080_M_VDD_FLT				0x01
-#define	PV88080_M_OVER_TEMP			0x02
+#define	PV88080_M_OVER_TEMP				0x02
 
-/* PV88080_REG_BUCK1_CONF0 (addr=0x27) */
+/* PV88080_REG_BUCK1_CONF0 (addr=0x27|0x2A) */
 #define	PV88080_BUCK1_EN				0x80
-#define PV88080_VBUCK1_MASK			0x7F
-/* PV88080_REG_BUCK2_CONF0 (addr=0x29) */
+#define PV88080_VBUCK1_MASK				0x7F
+
+/* PV88080_REG_BUCK2_CONF0 (addr=0x29|0x2D) */
 #define	PV88080_BUCK2_EN				0x80
-#define PV88080_VBUCK2_MASK			0x7F
-/* PV88080_REG_BUCK3_CONF0 (addr=0x2b) */
+#define PV88080_VBUCK2_MASK				0x7F
+
+/* PV88080_REG_BUCK3_CONF0 (addr=0x2B|0x30) */
 #define	PV88080_BUCK3_EN				0x80
-#define PV88080_VBUCK3_MASK			0x7F
+#define PV88080_VBUCK3_MASK				0x7F
 
-/* PV88080_REG_BUCK1_CONF1 (addr=0x28) */
-#define PV88080_BUCK1_ILIM_SHIFT			2
+/* PV88080_REG_BUCK1_CONF1 (addr=0x28|0x2C) */
+#define PV88080_BUCK1_ILIM_SHIFT		2
 #define PV88080_BUCK1_ILIM_MASK			0x0C
 #define PV88080_BUCK1_MODE_MASK			0x03
 
-/* PV88080_REG_BUCK2_CONF1 (addr=0x2a) */
-#define PV88080_BUCK2_ILIM_SHIFT			2
+/* PV88080_REG_BUCK2_CONF1 (addr=0x2A|0x2F) */
+#define PV88080_BUCK2_ILIM_SHIFT		2
 #define PV88080_BUCK2_ILIM_MASK			0x0C
 #define PV88080_BUCK2_MODE_MASK			0x03
 
-/* PV88080_REG_BUCK3_CONF1 (addr=0x2c) */
-#define PV88080_BUCK3_ILIM_SHIFT			2
+/* PV88080_REG_BUCK3_CONF1 (addr=0x2C|0x32) */
+#define PV88080_BUCK3_ILIM_SHIFT		2
 #define PV88080_BUCK3_ILIM_MASK			0x0C
 #define PV88080_BUCK3_MODE_MASK			0x03
 
@@ -73,20 +93,26 @@
 #define	PV88080_BUCK_MODE_AUTO			0x01
 #define	PV88080_BUCK_MODE_SYNC			0x02
 
-/* PV88080_REG_BUCK2_CONF2 (addr=0x61) */
-/* PV88080_REG_BUCK3_CONF2 (addr=0x69) */
-#define PV88080_BUCK_VDAC_RANGE_SHIFT			7
-#define PV88080_BUCK_VDAC_RANGE_MASK			0x01
+/* PV88080_REG_HVBUCK_CONF1 (addr=0x2D|0x33) */
+#define PV88080_VHVBUCK_MASK			0xFF
+
+/* PV88080_REG_HVBUCK_CONF1 (addr=0x2E|0x34) */
+#define PV88080_HVBUCK_EN				0x01
+
+/* PV88080_REG_BUCK2_CONF2 (addr=0x61|0x63) */
+/* PV88080_REG_BUCK3_CONF2 (addr=0x69|0x6C) */
+#define PV88080_BUCK_VDAC_RANGE_SHIFT	7
+#define PV88080_BUCK_VDAC_RANGE_MASK	0x01
 
-#define PV88080_BUCK_VDAC_RANGE_1			0x00
-#define PV88080_BUCK_VDAC_RANGE_2			0x01
+#define PV88080_BUCK_VDAC_RANGE_1		0x00
+#define PV88080_BUCK_VDAC_RANGE_2		0x01
 
-/* PV88080_REG_BUCK2_CONF5 (addr=0x64) */
-/* PV88080_REG_BUCK3_CONF5 (addr=0x6c) */
-#define PV88080_BUCK_VRANGE_GAIN_SHIFT			0
-#define PV88080_BUCK_VRANGE_GAIN_MASK			0x01
+/* PV88080_REG_BUCK2_CONF5 (addr=0x64|0x66) */
+/* PV88080_REG_BUCK3_CONF5 (addr=0x6C|0x6F) */
+#define PV88080_BUCK_VRANGE_GAIN_SHIFT	0
+#define PV88080_BUCK_VRANGE_GAIN_MASK	0x01
 
-#define PV88080_BUCK_VRANGE_GAIN_1			0x00
-#define PV88080_BUCK_VRANGE_GAIN_2			0x01
+#define PV88080_BUCK_VRANGE_GAIN_1		0x00
+#define PV88080_BUCK_VRANGE_GAIN_2		0x01
 
 #endif	/* __PV88080_REGISTERS_H__ */

drivers/regulator/pwm-regulator.c

@@ -10,7 +10,6 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/err.h>
@@ -194,12 +193,10 @@ static int pwm_regulator_set_voltage(struct regulator_dev *rdev,
 	unsigned int min_uV_duty = drvdata->continuous.min_uV_dutycycle;
 	unsigned int max_uV_duty = drvdata->continuous.max_uV_dutycycle;
 	unsigned int duty_unit = drvdata->continuous.dutycycle_unit;
-	unsigned int ramp_delay = rdev->constraints->ramp_delay;
 	int min_uV = rdev->constraints->min_uV;
 	int max_uV = rdev->constraints->max_uV;
 	int diff_uV = max_uV - min_uV;
 	struct pwm_state pstate;
-	int old_uV = pwm_regulator_get_voltage(rdev);
 	unsigned int diff_duty;
 	unsigned int dutycycle;
 	int ret;
@@ -233,13 +230,6 @@ static int pwm_regulator_set_voltage(struct regulator_dev *rdev,
 		return ret;
 	}
 
-	if ((ramp_delay == 0) || !pwm_regulator_is_enabled(rdev))
-		return 0;
-
-	/* Ramp delay is in uV/uS. Adjust to uS and delay */
-	ramp_delay = DIV_ROUND_UP(abs(req_min_uV - old_uV), ramp_delay);
-	usleep_range(ramp_delay, ramp_delay + DIV_ROUND_UP(ramp_delay, 10));
-
 	return 0;
 }
 

drivers/regulator/rk808-regulator.c

@@ -533,8 +533,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
 static struct platform_driver rk808_regulator_driver = {
 	.probe = rk808_regulator_probe,
 	.driver = {
-		.name = "rk808-regulator",
-		.owner = THIS_MODULE,
+		.name = "rk808-regulator"
 	},
 };
 

drivers/regulator/tps65218-regulator.c

@@ -180,6 +180,14 @@ static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
 	if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
 		return -EINVAL;
 
+	/*
+	 * Certain revisions of TPS65218 will need to have DCDC3 regulator
+	 * enabled always, otherwise an immediate system reboot will occur
+	 * during poweroff.
+	 */
+	if (rid == TPS65218_DCDC_3 && tps->rev == TPS65218_REV_2_1)
+		return 0;
+
 	if (!tps->info[rid]->strobe) {
 		if (rid == TPS65218_DCDC_3)
 			tps->info[rid]->strobe = 3;

drivers/regulator/tps65910-regulator.c

@@ -1111,6 +1111,12 @@ static int tps65910_probe(struct platform_device *pdev)
 		pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
 		pmic->ext_sleep_control = tps65910_ext_sleep_control;
 		info = tps65910_regs;
+		/* Work around silicon erratum SWCZ010: output programmed
+		 * voltage level can go higher than expected or crash
+		 * Workaround: use no synchronization of DCDC clocks
+		 */
+		tps65910_reg_clear_bits(pmic->mfd, TPS65910_DCDCCTRL,
+					DCDCCTRL_DCDCCKSYNC_MASK);
 		break;
 	case TPS65911:
 		pmic->get_ctrl_reg = &tps65911_get_ctrl_register;

include/linux/mfd/tps65218.h

@@ -63,6 +63,11 @@
 #define TPS65218_CHIPID_CHIP_MASK	0xF8
 #define TPS65218_CHIPID_REV_MASK	0x07
 
+#define TPS65218_REV_1_0		0x0
+#define TPS65218_REV_1_1		0x1
+#define TPS65218_REV_2_0		0x2
+#define TPS65218_REV_2_1		0x3
+
 #define TPS65218_INT1_VPRG		BIT(5)
 #define TPS65218_INT1_AC		BIT(4)
 #define TPS65218_INT1_PB		BIT(3)
@@ -267,6 +272,7 @@ struct tps_info {
 struct tps65218 {
 	struct device *dev;
 	unsigned int id;
+	u8 rev;
 
 	struct mutex tps_lock;		/* lock guarding the data structure */
 	/* IRQ Data */

include/linux/regulator/consumer.h

@@ -140,8 +140,6 @@ struct regulator;
  *
  * @supply:   The name of the supply.  Initialised by the user before
  *            using the bulk regulator APIs.
- * @optional: The supply should be considered optional. Initialised by the user
- *            before using the bulk regulator APIs.
  * @consumer: The regulator consumer for the supply.  This will be managed
  *            by the bulk API.
  *
@@ -151,7 +149,6 @@ struct regulator;
  */
 struct regulator_bulk_data {
 	const char *supply;
-	bool optional;
 	struct regulator *consumer;
 
 	/* private: Internal use */

include/linux/regulator/driver.h

@@ -113,10 +113,14 @@ struct regulator_linear_range {
  *               stabilise after being enabled, in microseconds.
  * @set_ramp_delay: Set the ramp delay for the regulator. The driver should
  *		select ramp delay equal to or less than(closest) ramp_delay.
+ * @set_voltage_time: Time taken for the regulator voltage output voltage
+ *               to stabilise after being set to a new value, in microseconds.
+ *               The function receives the from and to voltage as input, it
+ *               should return the worst case.
  * @set_voltage_time_sel: Time taken for the regulator voltage output voltage
  *               to stabilise after being set to a new value, in microseconds.
- *               The function provides the from and to voltage selector, the
- *               function should return the worst case.
+ *               The function receives the from and to voltage selector as
+ *               input, it should return the worst case.
  * @set_soft_start: Enable soft start for the regulator.
  *
  * @set_suspend_voltage: Set the voltage for the regulator when the system
@@ -168,6 +172,8 @@ struct regulator_ops {
 	/* Time taken to enable or set voltage on the regulator */
 	int (*enable_time) (struct regulator_dev *);
 	int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay);
+	int (*set_voltage_time) (struct regulator_dev *, int old_uV,
+				 int new_uV);
 	int (*set_voltage_time_sel) (struct regulator_dev *,
 				     unsigned int old_selector,
 				     unsigned int new_selector);