MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141

pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040

stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch

mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch

Signed-off-by: Andy Green <andy@openmoko.com>

6 files changed, 453 insertions, 245 deletions

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 547d868db68..e7e0cf102d6 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -74,9 +74,10 @@ config REGULATOR_DA903X
 	  Dialog Semiconductor DA9030/DA9034 PMIC.
 
 config REGULATOR_PCF50633
-	bool "PCF50633 regulator driver"
+	tristate "PCF50633 regulator driver"
         depends on MFD_PCF50633
 	help
 	 Say Y here to support the voltage regulators and convertors
 	 on PCF50633
+
 endif
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 5e1cb5f65d6..3ee91d410d5 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -29,7 +29,7 @@ static DEFINE_MUTEX(regulator_list_mutex);
 static LIST_HEAD(regulator_list);
 static LIST_HEAD(regulator_map_list);
 
-/**
+/*
  * struct regulator_dev
  *
  * Voltage / Current regulator class device. One for each regulator.
@@ -56,7 +56,7 @@ struct regulator_dev {
 	void *reg_data;		/* regulator_dev data */
 };
 
-/**
+/*
  * struct regulator_map
  *
  * Used to provide symbolic supply names to devices.
@@ -79,7 +79,7 @@ struct regulator {
 	int uA_load;
 	int min_uV;
 	int max_uV;
-	int enabled; /* client has called enabled */
+	int enabled; /* count of client enables */
 	char *supply_name;
 	struct device_attribute dev_attr;
 	struct regulator_dev *rdev;
@@ -174,6 +174,16 @@ static int regulator_check_current_limit(struct regulator_dev *rdev,
 /* operating mode constraint check */
 static int regulator_check_mode(struct regulator_dev *rdev, int mode)
 {
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+	case REGULATOR_MODE_NORMAL:
+	case REGULATOR_MODE_IDLE:
+	case REGULATOR_MODE_STANDBY:
+		break;
+	default:
+		return -EINVAL;
+	}
+
 	if (!rdev->constraints) {
 		printk(KERN_ERR "%s: no constraints for %s\n", __func__,
 		       rdev->desc->name);
@@ -232,6 +242,7 @@ static ssize_t regulator_uV_show(struct device *dev,
 
 	return ret;
 }
+static DEVICE_ATTR(microvolts, 0444, regulator_uV_show, NULL);
 
 static ssize_t regulator_uA_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
@@ -240,6 +251,7 @@ static ssize_t regulator_uA_show(struct device *dev,
 
 	return sprintf(buf, "%d\n", _regulator_get_current_limit(rdev));
 }
+static DEVICE_ATTR(microamps, 0444, regulator_uA_show, NULL);
 
 static ssize_t regulator_name_show(struct device *dev,
 			     struct device_attribute *attr, char *buf)
@@ -257,12 +269,8 @@ static ssize_t regulator_name_show(struct device *dev,
 	return sprintf(buf, "%s\n", name);
 }
 
-static ssize_t regulator_opmode_show(struct device *dev,
-				    struct device_attribute *attr, char *buf)
+static ssize_t regulator_print_opmode(char *buf, int mode)
 {
-	struct regulator_dev *rdev = dev_get_drvdata(dev);
-	int mode = _regulator_get_mode(rdev);
-
 	switch (mode) {
 	case REGULATOR_MODE_FAST:
 		return sprintf(buf, "fast\n");
@@ -276,12 +284,17 @@ static ssize_t regulator_opmode_show(struct device *dev,
 	return sprintf(buf, "unknown\n");
 }
 
-static ssize_t regulator_state_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
+static ssize_t regulator_opmode_show(struct device *dev,
+				    struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
-	int state = _regulator_is_enabled(rdev);
 
+	return regulator_print_opmode(buf, _regulator_get_mode(rdev));
+}
+static DEVICE_ATTR(opmode, 0444, regulator_opmode_show, NULL);
+
+static ssize_t regulator_print_state(char *buf, int state)
+{
 	if (state > 0)
 		return sprintf(buf, "enabled\n");
 	else if (state == 0)
@@ -290,6 +303,15 @@ static ssize_t regulator_state_show(struct device *dev,
 		return sprintf(buf, "unknown\n");
 }
 
+static ssize_t regulator_state_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+	return regulator_print_state(buf, _regulator_is_enabled(rdev));
+}
+static DEVICE_ATTR(state, 0444, regulator_state_show, NULL);
+
 static ssize_t regulator_min_uA_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
@@ -300,6 +322,7 @@ static ssize_t regulator_min_uA_show(struct device *dev,
 
 	return sprintf(buf, "%d\n", rdev->constraints->min_uA);
 }
+static DEVICE_ATTR(min_microamps, 0444, regulator_min_uA_show, NULL);
 
 static ssize_t regulator_max_uA_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
@@ -311,6 +334,7 @@ static ssize_t regulator_max_uA_show(struct device *dev,
 
 	return sprintf(buf, "%d\n", rdev->constraints->max_uA);
 }
+static DEVICE_ATTR(max_microamps, 0444, regulator_max_uA_show, NULL);
 
 static ssize_t regulator_min_uV_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
@@ -322,6 +346,7 @@ static ssize_t regulator_min_uV_show(struct device *dev,
 
 	return sprintf(buf, "%d\n", rdev->constraints->min_uV);
 }
+static DEVICE_ATTR(min_microvolts, 0444, regulator_min_uV_show, NULL);
 
 static ssize_t regulator_max_uV_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
@@ -333,6 +358,7 @@ static ssize_t regulator_max_uV_show(struct device *dev,
 
 	return sprintf(buf, "%d\n", rdev->constraints->max_uV);
 }
+static DEVICE_ATTR(max_microvolts, 0444, regulator_max_uV_show, NULL);
 
 static ssize_t regulator_total_uA_show(struct device *dev,
 				      struct device_attribute *attr, char *buf)
@@ -347,6 +373,7 @@ static ssize_t regulator_total_uA_show(struct device *dev,
 	mutex_unlock(&rdev->mutex);
 	return sprintf(buf, "%d\n", uA);
 }
+static DEVICE_ATTR(requested_microamps, 0444, regulator_total_uA_show, NULL);
 
 static ssize_t regulator_num_users_show(struct device *dev,
 				      struct device_attribute *attr, char *buf)
@@ -374,153 +401,106 @@ static ssize_t regulator_suspend_mem_uV_show(struct device *dev,
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
 	return sprintf(buf, "%d\n", rdev->constraints->state_mem.uV);
 }
+static DEVICE_ATTR(suspend_mem_microvolts, 0444,
+		regulator_suspend_mem_uV_show, NULL);
 
 static ssize_t regulator_suspend_disk_uV_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
 	return sprintf(buf, "%d\n", rdev->constraints->state_disk.uV);
 }
+static DEVICE_ATTR(suspend_disk_microvolts, 0444,
+		regulator_suspend_disk_uV_show, NULL);
 
 static ssize_t regulator_suspend_standby_uV_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
 	return sprintf(buf, "%d\n", rdev->constraints->state_standby.uV);
 }
-
-static ssize_t suspend_opmode_show(struct regulator_dev *rdev,
-	unsigned int mode, char *buf)
-{
-	switch (mode) {
-	case REGULATOR_MODE_FAST:
-		return sprintf(buf, "fast\n");
-	case REGULATOR_MODE_NORMAL:
-		return sprintf(buf, "normal\n");
-	case REGULATOR_MODE_IDLE:
-		return sprintf(buf, "idle\n");
-	case REGULATOR_MODE_STANDBY:
-		return sprintf(buf, "standby\n");
-	}
-	return sprintf(buf, "unknown\n");
-}
+static DEVICE_ATTR(suspend_standby_microvolts, 0444,
+		regulator_suspend_standby_uV_show, NULL);
 
 static ssize_t regulator_suspend_mem_mode_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
-	return suspend_opmode_show(rdev,
-		rdev->constraints->state_mem.mode, buf);
+	return regulator_print_opmode(buf,
+		rdev->constraints->state_mem.mode);
 }
+static DEVICE_ATTR(suspend_mem_mode, 0444,
+		regulator_suspend_mem_mode_show, NULL);
 
 static ssize_t regulator_suspend_disk_mode_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
-	return suspend_opmode_show(rdev,
-		rdev->constraints->state_disk.mode, buf);
+	return regulator_print_opmode(buf,
+		rdev->constraints->state_disk.mode);
 }
+static DEVICE_ATTR(suspend_disk_mode, 0444,
+		regulator_suspend_disk_mode_show, NULL);
 
 static ssize_t regulator_suspend_standby_mode_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
-	return suspend_opmode_show(rdev,
-		rdev->constraints->state_standby.mode, buf);
+	return regulator_print_opmode(buf,
+		rdev->constraints->state_standby.mode);
 }
+static DEVICE_ATTR(suspend_standby_mode, 0444,
+		regulator_suspend_standby_mode_show, NULL);
 
 static ssize_t regulator_suspend_mem_state_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
-
-	if (rdev->constraints->state_mem.enabled)
-		return sprintf(buf, "enabled\n");
-	else
-		return sprintf(buf, "disabled\n");
+	return regulator_print_state(buf,
+			rdev->constraints->state_mem.enabled);
 }
+static DEVICE_ATTR(suspend_mem_state, 0444,
+		regulator_suspend_mem_state_show, NULL);
 
 static ssize_t regulator_suspend_disk_state_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
-
-	if (rdev->constraints->state_disk.enabled)
-		return sprintf(buf, "enabled\n");
-	else
-		return sprintf(buf, "disabled\n");
+	return regulator_print_state(buf,
+			rdev->constraints->state_disk.enabled);
 }
+static DEVICE_ATTR(suspend_disk_state, 0444,
+		regulator_suspend_disk_state_show, NULL);
 
 static ssize_t regulator_suspend_standby_state_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
 	struct regulator_dev *rdev = dev_get_drvdata(dev);
 
-	if (!rdev->constraints)
-		return sprintf(buf, "not defined\n");
-
-	if (rdev->constraints->state_standby.enabled)
-		return sprintf(buf, "enabled\n");
-	else
-		return sprintf(buf, "disabled\n");
+	return regulator_print_state(buf,
+			rdev->constraints->state_standby.enabled);
 }
+static DEVICE_ATTR(suspend_standby_state, 0444,
+		regulator_suspend_standby_state_show, NULL);
+
 
+/*
+ * These are the only attributes are present for all regulators.
+ * Other attributes are a function of regulator functionality.
+ */
 static struct device_attribute regulator_dev_attrs[] = {
 	__ATTR(name, 0444, regulator_name_show, NULL),
-	__ATTR(microvolts, 0444, regulator_uV_show, NULL),
-	__ATTR(microamps, 0444, regulator_uA_show, NULL),
-	__ATTR(opmode, 0444, regulator_opmode_show, NULL),
-	__ATTR(state, 0444, regulator_state_show, NULL),
-	__ATTR(min_microvolts, 0444, regulator_min_uV_show, NULL),
-	__ATTR(min_microamps, 0444, regulator_min_uA_show, NULL),
-	__ATTR(max_microvolts, 0444, regulator_max_uV_show, NULL),
-	__ATTR(max_microamps, 0444, regulator_max_uA_show, NULL),
-	__ATTR(requested_microamps, 0444, regulator_total_uA_show, NULL),
 	__ATTR(num_users, 0444, regulator_num_users_show, NULL),
 	__ATTR(type, 0444, regulator_type_show, NULL),
-	__ATTR(suspend_mem_microvolts, 0444,
-		regulator_suspend_mem_uV_show, NULL),
-	__ATTR(suspend_disk_microvolts, 0444,
-		regulator_suspend_disk_uV_show, NULL),
-	__ATTR(suspend_standby_microvolts, 0444,
-		regulator_suspend_standby_uV_show, NULL),
-	__ATTR(suspend_mem_mode, 0444,
-		regulator_suspend_mem_mode_show, NULL),
-	__ATTR(suspend_disk_mode, 0444,
-		regulator_suspend_disk_mode_show, NULL),
-	__ATTR(suspend_standby_mode, 0444,
-		regulator_suspend_standby_mode_show, NULL),
-	__ATTR(suspend_mem_state, 0444,
-		regulator_suspend_mem_state_show, NULL),
-	__ATTR(suspend_disk_state, 0444,
-		regulator_suspend_disk_state_show, NULL),
-	__ATTR(suspend_standby_state, 0444,
-		regulator_suspend_standby_state_show, NULL),
 	__ATTR_NULL,
 };
 
@@ -675,7 +655,8 @@ static void print_constraints(struct regulator_dev *rdev)
 
 /**
  * set_machine_constraints - sets regulator constraints
- * @regulator: regulator source
+ * @rdev: regulator source
+ * @constraints: constraints to apply
  *
  * Allows platform initialisation code to define and constrain
  * regulator circuits e.g. valid voltage/current ranges, etc.  NOTE:
@@ -750,8 +731,8 @@ out:
 
 /**
  * set_supply - set regulator supply regulator
- * @regulator: regulator name
- * @supply: supply regulator name
+ * @rdev: regulator name
+ * @supply_rdev: supply regulator name
  *
  * Called by platform initialisation code to set the supply regulator for this
  * regulator. This ensures that a regulators supply will also be enabled by the
@@ -778,9 +759,9 @@ out:
 
 /**
  * set_consumer_device_supply: Bind a regulator to a symbolic supply
- * @regulator: regulator source
- * @dev:       device the supply applies to
- * @supply:    symbolic name for supply
+ * @rdev:         regulator source
+ * @consumer_dev: device the supply applies to
+ * @supply:       symbolic name for supply
  *
  * Allows platform initialisation code to map physical regulator
  * sources to symbolic names for supplies for use by devices.  Devices
@@ -795,6 +776,20 @@ static int set_consumer_device_supply(struct regulator_dev *rdev,
 	if (supply == NULL)
 		return -EINVAL;
 
+	list_for_each_entry(node, &regulator_map_list, list) {
+		if (consumer_dev != node->dev)
+			continue;
+		if (strcmp(node->supply, supply) != 0)
+			continue;
+
+		dev_dbg(consumer_dev, "%s/%s is '%s' supply; fail %s/%s\n",
+				dev_name(&node->regulator->dev),
+				node->regulator->desc->name,
+				supply,
+				dev_name(&rdev->dev), rdev->desc->name);
+		return -EBUSY;
+	}
+
 	node = kmalloc(sizeof(struct regulator_map), GFP_KERNEL);
 	if (node == NULL)
 		return -ENOMEM;
@@ -963,16 +958,13 @@ void regulator_put(struct regulator *regulator)
 	if (regulator == NULL || IS_ERR(regulator))
 		return;
 
-	if (regulator->enabled) {
-		printk(KERN_WARNING "Releasing supply %s while enabled\n",
-		       regulator->supply_name);
-		WARN_ON(regulator->enabled);
-		regulator_disable(regulator);
-	}
-
 	mutex_lock(&regulator_list_mutex);
 	rdev = regulator->rdev;
 
+	if (WARN(regulator->enabled, "Releasing supply %s while enabled\n",
+			       regulator->supply_name))
+		_regulator_disable(rdev);
+
 	/* remove any sysfs entries */
 	if (regulator->dev) {
 		sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name);
@@ -1034,29 +1026,26 @@ static int _regulator_enable(struct regulator_dev *rdev)
  * regulator_enable - enable regulator output
  * @regulator: regulator source
  *
- * Enable the regulator output at the predefined voltage or current value.
+ * Request that the regulator be enabled with the regulator output at
+ * the predefined voltage or current value.  Calls to regulator_enable()
+ * must be balanced with calls to regulator_disable().
+ *
  * NOTE: the output value can be set by other drivers, boot loader or may be
  * hardwired in the regulator.
- * NOTE: calls to regulator_enable() must be balanced with calls to
- * regulator_disable().
  */
 int regulator_enable(struct regulator *regulator)
 {
-	int ret;
-
-	if (regulator->enabled) {
-		printk(KERN_CRIT "Regulator %s already enabled\n",
-		       regulator->supply_name);
-		WARN_ON(regulator->enabled);
-		return 0;
-	}
+	struct regulator_dev *rdev = regulator->rdev;
+	int ret = 0;
 
-	mutex_lock(&regulator->rdev->mutex);
-	regulator->enabled = 1;
-	ret = _regulator_enable(regulator->rdev);
-	if (ret != 0)
-		regulator->enabled = 0;
-	mutex_unlock(&regulator->rdev->mutex);
+	mutex_lock(&rdev->mutex);
+	if (regulator->enabled == 0)
+		ret = _regulator_enable(rdev);
+	else if (regulator->enabled < 0)
+		ret = -EIO;
+	if (ret == 0)
+		regulator->enabled++;
+	mutex_unlock(&rdev->mutex);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(regulator_enable);
@@ -1100,15 +1089,18 @@ static int _regulator_disable(struct regulator_dev *rdev)
  * regulator_disable - disable regulator output
  * @regulator: regulator source
  *
- * Disable the regulator output voltage or current.
- * NOTE: this will only disable the regulator output if no other consumer
- * devices have it enabled.
- * NOTE: calls to regulator_enable() must be balanced with calls to
+ * Disable the regulator output voltage or current.  Calls to
+ * regulator_enable() must be balanced with calls to
  * regulator_disable().
+ *
+ * NOTE: this will only disable the regulator output if no other consumer
+ * devices have it enabled, the regulator device supports disabling and
+ * machine constraints permit this operation.
  */
 int regulator_disable(struct regulator *regulator)
 {
-	int ret;
+	struct regulator_dev *rdev = regulator->rdev;
+	int ret = 0;
 
 	if (!regulator->enabled) {
 		printk(KERN_ERR "%s: not in use by this consumer\n",
@@ -1122,6 +1114,7 @@ int regulator_disable(struct regulator *regulator)
 	regulator->uA_load = 0;
 	ret = _regulator_disable(regulator->rdev);
 	mutex_unlock(&regulator->rdev->mutex);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(regulator_disable);
@@ -1197,7 +1190,13 @@ out:
  * regulator_is_enabled - is the regulator output enabled
  * @regulator: regulator source
  *
- * Returns zero for disabled otherwise return number of enable requests.
+ * Returns positive if the regulator driver backing the source/client
+ * has requested that the device be enabled, zero if it hasn't, else a
+ * negative errno code.
+ *
+ * Note that the device backing this regulator handle can have multiple
+ * users, so it might be enabled even if regulator_enable() was never
+ * called for this particular source.
  */
 int regulator_is_enabled(struct regulator *regulator)
 {
@@ -1220,7 +1219,7 @@ EXPORT_SYMBOL_GPL(regulator_is_enabled);
  *
  * NOTE: If the regulator is shared between several devices then the lowest
  * request voltage that meets the system constraints will be used.
- * NOTE: Regulator system constraints must be set for this regulator before
+ * Regulator system constraints must be set for this regulator before
  * calling this function otherwise this call will fail.
  */
 int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV)
@@ -1494,7 +1493,8 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
 	mode = rdev->desc->ops->get_optimum_mode(rdev,
 						 input_uV, output_uV,
 						 total_uA_load);
-	if (ret <= 0) {
+	ret = regulator_check_mode(rdev, mode);
+	if (ret < 0) {
 		printk(KERN_ERR "%s: failed to get optimum mode for %s @"
 			" %d uA %d -> %d uV\n", __func__, rdev->desc->name,
 			total_uA_load, input_uV, output_uV);
@@ -1502,7 +1502,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
 	}
 
 	ret = rdev->desc->ops->set_mode(rdev, mode);
-	if (ret <= 0) {
+	if (ret < 0) {
 		printk(KERN_ERR "%s: failed to set optimum mode %x for %s\n",
 			__func__, mode, rdev->desc->name);
 		goto out;
@@ -1517,7 +1517,7 @@ EXPORT_SYMBOL_GPL(regulator_set_optimum_mode);
 /**
  * regulator_register_notifier - register regulator event notifier
  * @regulator: regulator source
- * @notifier_block: notifier block
+ * @nb: notifier block
  *
  * Register notifier block to receive regulator events.
  */
@@ -1532,7 +1532,7 @@ EXPORT_SYMBOL_GPL(regulator_register_notifier);
 /**
  * regulator_unregister_notifier - unregister regulator event notifier
  * @regulator: regulator source
- * @notifier_block: notifier block
+ * @nb: notifier block
  *
  * Unregister regulator event notifier block.
  */
@@ -1698,9 +1698,9 @@ EXPORT_SYMBOL_GPL(regulator_bulk_free);
 
 /**
  * regulator_notifier_call_chain - call regulator event notifier
- * @regulator: regulator source
+ * @rdev: regulator source
  * @event: notifier block
- * @data:
+ * @data: callback-specific data.
  *
  * Called by regulator drivers to notify clients a regulator event has
  * occurred. We also notify regulator clients downstream.
@@ -1714,10 +1714,122 @@ int regulator_notifier_call_chain(struct regulator_dev *rdev,
 }
 EXPORT_SYMBOL_GPL(regulator_notifier_call_chain);
 
+/*
+ * To avoid cluttering sysfs (and memory) with useless state, only
+ * create attributes that can be meaningfully displayed.
+ */
+static int add_regulator_attributes(struct regulator_dev *rdev)
+{
+	struct device		*dev = &rdev->dev;
+	struct regulator_ops	*ops = rdev->desc->ops;
+	int			status = 0;
+
+	/* some attributes need specific methods to be displayed */
+	if (ops->get_voltage) {
+		status = device_create_file(dev, &dev_attr_microvolts);
+		if (status < 0)
+			return status;
+	}
+	if (ops->get_current_limit) {
+		status = device_create_file(dev, &dev_attr_microamps);
+		if (status < 0)
+			return status;
+	}
+	if (ops->get_mode) {
+		status = device_create_file(dev, &dev_attr_opmode);
+		if (status < 0)
+			return status;
+	}
+	if (ops->is_enabled) {
+		status = device_create_file(dev, &dev_attr_state);
+		if (status < 0)
+			return status;
+	}
+
+	/* some attributes are type-specific */
+	if (rdev->desc->type == REGULATOR_CURRENT) {
+		status = device_create_file(dev, &dev_attr_requested_microamps);
+		if (status < 0)
+			return status;
+	}
+
+	/* all the other attributes exist to support constraints;
+	 * don't show them if there are no constraints, or if the
+	 * relevant supporting methods are missing.
+	 */
+	if (!rdev->constraints)
+		return status;
+
+	/* constraints need specific supporting methods */
+	if (ops->set_voltage) {
+		status = device_create_file(dev, &dev_attr_min_microvolts);
+		if (status < 0)
+			return status;
+		status = device_create_file(dev, &dev_attr_max_microvolts);
+		if (status < 0)
+			return status;
+	}
+	if (ops->set_current_limit) {
+		status = device_create_file(dev, &dev_attr_min_microamps);
+		if (status < 0)
+			return status;
+		status = device_create_file(dev, &dev_attr_max_microamps);
+		if (status < 0)
+			return status;
+	}
+
+	/* suspend mode constraints need multiple supporting methods */
+	if (!(ops->set_suspend_enable && ops->set_suspend_disable))
+		return status;
+
+	status = device_create_file(dev, &dev_attr_suspend_standby_state);
+	if (status < 0)
+		return status;
+	status = device_create_file(dev, &dev_attr_suspend_mem_state);
+	if (status < 0)
+		return status;
+	status = device_create_file(dev, &dev_attr_suspend_disk_state);
+	if (status < 0)
+		return status;
+
+	if (ops->set_suspend_voltage) {
+		status = device_create_file(dev,
+				&dev_attr_suspend_standby_microvolts);
+		if (status < 0)
+			return status;
+		status = device_create_file(dev,
+				&dev_attr_suspend_mem_microvolts);
+		if (status < 0)
+			return status;
+		status = device_create_file(dev,
+				&dev_attr_suspend_disk_microvolts);
+		if (status < 0)
+			return status;
+	}
+
+	if (ops->set_suspend_mode) {
+		status = device_create_file(dev,
+				&dev_attr_suspend_standby_mode);
+		if (status < 0)
+			return status;
+		status = device_create_file(dev,
+				&dev_attr_suspend_mem_mode);
+		if (status < 0)
+			return status;
+		status = device_create_file(dev,
+				&dev_attr_suspend_disk_mode);
+		if (status < 0)
+			return status;
+	}
+
+	return status;
+}
+
 /**
  * regulator_register - register regulator
- * @regulator: regulator source
- * @reg_data: private regulator data
+ * @regulator_desc: regulator to register
+ * @dev: struct device for the regulator
+ * @driver_data: private regulator data
  *
  * Called by regulator drivers to register a regulator.
  * Returns 0 on success.
@@ -1762,45 +1874,37 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	/* preform any regulator specific init */
 	if (init_data->regulator_init) {
 		ret = init_data->regulator_init(rdev->reg_data);
-		if (ret < 0) {
-			kfree(rdev);
-			rdev = ERR_PTR(ret);
-			goto out;
-		}
-	}
-
-	/* set regulator constraints */
-	ret = set_machine_constraints(rdev, &init_data->constraints);
-	if (ret < 0) {
-		kfree(rdev);
-		rdev = ERR_PTR(ret);
-		goto out;
+		if (ret < 0)
+			goto clean;
 	}
 
 	/* register with sysfs */
 	rdev->dev.class = &regulator_class;
 	rdev->dev.parent = dev;
-	snprintf(rdev->dev.bus_id, sizeof(rdev->dev.bus_id),
-		 "regulator.%d", atomic_inc_return(&regulator_no) - 1);
+	dev_set_name(&rdev->dev, "regulator.%d",
+		     atomic_inc_return(&regulator_no) - 1);
 	ret = device_register(&rdev->dev);
-	if (ret != 0) {
-		kfree(rdev);
-		rdev = ERR_PTR(ret);
-		goto out;
-	}
+	if (ret != 0)
+		goto clean;
 
 	dev_set_drvdata(&rdev->dev, rdev);
 
+	/* set regulator constraints */
+	ret = set_machine_constraints(rdev, &init_data->constraints);
+	if (ret < 0)
+		goto scrub;
+
+	/* add attributes supported by this regulator */
+	ret = add_regulator_attributes(rdev);
+	if (ret < 0)
+		goto scrub;
+
 	/* set supply regulator if it exists */
 	if (init_data->supply_regulator_dev) {
 		ret = set_supply(rdev,
 			dev_get_drvdata(init_data->supply_regulator_dev));
-		if (ret < 0) {
-			device_unregister(&rdev->dev);
-			kfree(rdev);
-			rdev = ERR_PTR(ret);
-			goto out;
-		}
+		if (ret < 0)
+			goto scrub;
 	}
 
 	/* add consumers devices */
@@ -1812,10 +1916,7 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 			for (--i; i >= 0; i--)
 				unset_consumer_device_supply(rdev,
 					init_data->consumer_supplies[i].dev);
-			device_unregister(&rdev->dev);
-			kfree(rdev);
-			rdev = ERR_PTR(ret);
-			goto out;
+			goto scrub;
 		}
 	}
 
@@ -1823,12 +1924,19 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 out:
 	mutex_unlock(&regulator_list_mutex);
 	return rdev;
+
+scrub:
+	device_unregister(&rdev->dev);
+clean:
+	kfree(rdev);
+	rdev = ERR_PTR(ret);
+	goto out;
 }
 EXPORT_SYMBOL_GPL(regulator_register);
 
 /**
  * regulator_unregister - unregister regulator
- * @regulator: regulator source
+ * @rdev: regulator to unregister
  *
  * Called by regulator drivers to unregister a regulator.
  */
@@ -1847,7 +1955,7 @@ void regulator_unregister(struct regulator_dev *rdev)
 EXPORT_SYMBOL_GPL(regulator_unregister);
 
 /**
- * regulator_suspend_prepare: prepare regulators for system wide suspend
+ * regulator_suspend_prepare - prepare regulators for system wide suspend
  * @state: system suspend state
  *
  * Configure each regulator with it's suspend operating parameters for state.
@@ -1883,7 +1991,7 @@ EXPORT_SYMBOL_GPL(regulator_suspend_prepare);
 
 /**
  * rdev_get_drvdata - get rdev regulator driver data
- * @regulator: regulator
+ * @rdev: regulator
  *
  * Get rdev regulator driver private data. This call can be used in the
  * regulator driver context.
@@ -1920,7 +2028,7 @@ EXPORT_SYMBOL_GPL(regulator_set_drvdata);
 
 /**
  * regulator_get_id - get regulator ID
- * @regulator: regulator
+ * @rdev: regulator
  */
 int rdev_get_id(struct regulator_dev *rdev)
 {
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index 773b29cec8b..fe77730a7ed 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -102,7 +102,7 @@ static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
 	uint8_t val, mask;
 
 	if (check_range(info, min_uV, max_uV)) {
-		pr_err("invalid voltage range (%d, %d) uV", min_uV, max_uV);
+		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
 		return -EINVAL;
 	}
 
@@ -159,7 +159,7 @@ static int da903x_is_enabled(struct regulator_dev *rdev)
 	if (ret)
 		return ret;
 
-	return reg_val & (1 << info->enable_bit);
+	return !!(reg_val & (1 << info->enable_bit));
 }
 
 /* DA9030 specific operations */
@@ -172,7 +172,7 @@ static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
 	int ret;
 
 	if (check_range(info, min_uV, max_uV)) {
-		pr_err("invalid voltage range (%d, %d) uV", min_uV, max_uV);
+		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
 		return -EINVAL;
 	}
 
@@ -199,7 +199,7 @@ static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
 	int thresh;
 
 	if (check_range(info, min_uV, max_uV)) {
-		pr_err("invalid voltage range (%d, %d) uV", min_uV, max_uV);
+		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
 		return -EINVAL;
 	}
 
@@ -248,7 +248,7 @@ static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
 	int ret;
 
 	if (check_range(info, min_uV, max_uV)) {
-		pr_err("invalid voltage range (%d, %d) uV", min_uV, max_uV);
+		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
 		return -EINVAL;
 	}
 
@@ -273,7 +273,7 @@ static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
 	uint8_t val, mask;
 
 	if (check_range(info, min_uV, max_uV)) {
-		pr_err("invalid voltage range (%d, %d) uV", min_uV, max_uV);
+		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
 		return -EINVAL;
 	}
 
diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c
index d284200e8ab..4cc85ec6e12 100644
--- a/drivers/regulator/pcf50633-regulator.c
+++ b/drivers/regulator/pcf50633-regulator.c
@@ -1,31 +1,25 @@
-/* Philips PCF50633 PMIC Driver
+/* NXP PCF50633 PMIC Driver
  *
  * (C) 2006-2008 by Openmoko, Inc.
  * Author: Balaji Rao <balajirrao@openmoko.org>
  * All rights reserved.
  *
  * Broken down from monstrous PCF50633 driver mainly by
- * Harald Welte and Andy Green
+ * Harald Welte and Andy Green and Werner Almesberger
  *
- * 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.
+ *  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.
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
  */
 
-#include <linux/regulator/driver.h>
-#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
 #include <linux/err.h>
+#include <linux/platform_device.h>
 
 #include <linux/mfd/pcf50633/core.h>
 #include <linux/mfd/pcf50633/pmic.h>
@@ -38,6 +32,7 @@
 		.type = REGULATOR_VOLTAGE, 	\
 		.owner = THIS_MODULE, 		\
 	}
+
 static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
 	[PCF50633_REGULATOR_AUTO]	= PCF50633_REG_AUTOOUT,
 	[PCF50633_REGULATOR_DOWN1]	= PCF50633_REG_DOWN1OUT,
@@ -53,7 +48,7 @@ static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
 };
 
 /* Bits from voltage value */
-static u_int8_t auto_voltage_bits(unsigned int millivolts)
+static u8 auto_voltage_bits(unsigned int millivolts)
 {
 	if (millivolts < 1800)
 		return 0;
@@ -61,10 +56,11 @@ static u_int8_t auto_voltage_bits(unsigned int millivolts)
 		return 0xff;
 
 	millivolts -= 625;
-	return millivolts/25;
+
+	return millivolts / 25;
 }
 
-static u_int8_t down_voltage_bits(unsigned int millivolts)
+static u8 down_voltage_bits(unsigned int millivolts)
 {
 	if (millivolts < 625)
 		return 0;
@@ -72,10 +68,11 @@ static u_int8_t down_voltage_bits(unsigned int millivolts)
 		return 0xff;
 
 	millivolts -= 625;
-	return millivolts/25;
+
+	return millivolts / 25;
 }
 
-static u_int8_t ldo_voltage_bits(unsigned int millivolts)
+static u8 ldo_voltage_bits(unsigned int millivolts)
 {
 	if (millivolts < 900)
 		return 0;
@@ -83,42 +80,42 @@ static u_int8_t ldo_voltage_bits(unsigned int millivolts)
 		return 0x1f;
 
 	millivolts -= 900;
-	return millivolts/100;
+	return millivolts / 100;
 }
 
 /* Obtain voltage value from bits */
-
-static unsigned int auto_voltage_value(uint8_t bits)
+static unsigned int auto_voltage_value(u8 bits)
 {
 	if (bits < 0x2f)
 		return 0;
+
 	return 625 + (bits * 25);
 }
 
 
-static unsigned int down_voltage_value(uint8_t bits)
+static unsigned int down_voltage_value(u8 bits)
 {
-	return 625 + (bits*25);
+	return 625 + (bits * 25);
 }
 
 
-static unsigned int ldo_voltage_value(uint8_t bits)
+static unsigned int ldo_voltage_value(u8 bits)
 {
 	bits &= 0x1f;
+
 	return 900 + (bits * 100);
 }
 
 static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev,
-			int min_uV, int max_uV)
+						int min_uV, int max_uV)
 {
-	uint8_t volt_bits;
-	uint8_t regnr;
-	int regulator_id;
-	int millivolts;
-	struct pcf50633 *pcf = rdev_get_drvdata(rdev);;
+	struct pcf50633 *pcf;
+	int regulator_id, millivolts;
+	u8 volt_bits, regnr;
 
-	regulator_id = rdev_get_id(rdev);
+	pcf = rdev_get_drvdata(rdev);
 
+	regulator_id = rdev_get_id(rdev);
 	if (regulator_id >= PCF50633_NUM_REGULATORS)
 		return -EINVAL;
 
@@ -154,27 +151,31 @@ static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev,
 
 static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev)
 {
-	uint8_t volt_bits;
-	uint8_t regnr;
-	unsigned int rc = 0;
-	int regulator_id = rdev_get_id(rdev);
-	struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+	struct pcf50633 *pcf;
+	int regulator_id, millivolts, volt_bits;
+	u8 regnr;
 
+	pcf = rdev_get_drvdata(rdev);;
+
+	regulator_id = rdev_get_id(rdev);
 	if (regulator_id >= PCF50633_NUM_REGULATORS)
 		return -EINVAL;
 
 	regnr = pcf50633_regulator_registers[regulator_id];
+
 	volt_bits = pcf50633_reg_read(pcf, regnr);
+	if (volt_bits < 0)
+		return -1;
 
 	switch (regulator_id) {
 	case PCF50633_REGULATOR_AUTO:
-		rc = auto_voltage_value(volt_bits);
+		millivolts = auto_voltage_value(volt_bits);
 		break;
 	case PCF50633_REGULATOR_DOWN1:
-		rc = down_voltage_value(volt_bits);
+		millivolts = down_voltage_value(volt_bits);
 		break;
 	case PCF50633_REGULATOR_DOWN2:
-		rc = down_voltage_value(volt_bits);
+		millivolts = down_voltage_value(volt_bits);
 		break;
 	case PCF50633_REGULATOR_LDO1:
 	case PCF50633_REGULATOR_LDO2:
@@ -183,67 +184,66 @@ static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev)
 	case PCF50633_REGULATOR_LDO5:
 	case PCF50633_REGULATOR_LDO6:
 	case PCF50633_REGULATOR_HCLDO:
-		rc = ldo_voltage_value(volt_bits);
+		millivolts = ldo_voltage_value(volt_bits);
 		break;
 	default:
 		return -EINVAL;
 	}
 
-	return rc * 1000;
+	return millivolts * 1000;
 }
 
 static int pcf50633_regulator_enable(struct regulator_dev *rdev)
 {
-	uint8_t regnr;
-	int regulator_id = rdev_get_id(rdev);
 	struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+	int regulator_id;
+	u8 regnr;
 
+	regulator_id = rdev_get_id(rdev);
 	if (regulator_id >= PCF50633_NUM_REGULATORS)
 		return -EINVAL;
 
-	/* the *ENA register is always one after the *OUT register */
+	/* The *ENA register is always one after the *OUT register */
 	regnr = pcf50633_regulator_registers[regulator_id] + 1;
 
-	pcf50633_reg_set_bit_mask(pcf, regnr, PCF50633_REGULATOR_ON,
-		       PCF50633_REGULATOR_ON);
-
-	return 0;
+	return pcf50633_reg_set_bit_mask(pcf, regnr, PCF50633_REGULATOR_ON,
+						       PCF50633_REGULATOR_ON);
 }
 
 static int pcf50633_regulator_disable(struct regulator_dev *rdev)
 {
-	uint8_t regnr;
-	int regulator_id = rdev_get_id(rdev);
 	struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+	int regulator_id;
+	u8 regnr;
 
+	regulator_id = rdev_get_id(rdev);
 	if (regulator_id >= PCF50633_NUM_REGULATORS)
 		return -EINVAL;
 
 	/* the *ENA register is always one after the *OUT register */
 	regnr = pcf50633_regulator_registers[regulator_id] + 1;
 
-	pcf50633_reg_set_bit_mask(pcf, regnr, PCF50633_REGULATOR_ON, 0);
-
-	return 0;
+	return pcf50633_reg_set_bit_mask(pcf, regnr,
+					PCF50633_REGULATOR_ON, 0);
 }
 
 static int pcf50633_regulator_is_enabled(struct regulator_dev *rdev)
 {
-	uint8_t val, regnr;
-	int regulator_id = rdev_get_id(rdev);
 	struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+	int regulator_id = rdev_get_id(rdev);
+	u8 regnr;
 
+	regulator_id = rdev_get_id(rdev);
 	if (regulator_id >= PCF50633_NUM_REGULATORS)
 		return -EINVAL;
 
 	/* the *ENA register is always one after the *OUT register */
 	regnr = pcf50633_regulator_registers[regulator_id] + 1;
-	val = pcf50633_reg_read(pcf, regnr) & PCF50633_REGULATOR_ON;
 
-	return val;
+	return pcf50633_reg_read(pcf, regnr) & PCF50633_REGULATOR_ON;
 }
 
-struct regulator_ops pcf50633_regulator_ops = {
+static struct regulator_ops pcf50633_regulator_ops = {
 	.set_voltage = pcf50633_regulator_set_voltage,
 	.get_voltage = pcf50633_regulator_get_voltage,
 	.enable = pcf50633_regulator_enable,
@@ -276,12 +276,13 @@ static struct regulator_desc regulators[] = {
 		PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO),
 };
 
-int __init pcf50633_regulator_probe(struct platform_device *pdev)
+static int __devinit pcf50633_regulator_probe(struct platform_device *pdev)
 {
 	struct regulator_dev *rdev;
 	struct pcf50633 *pcf;
 
-	pcf = pdev->dev.driver_data;
+	/* Already set by core driver */
+	pcf = platform_get_drvdata(pdev);
 
 	rdev = regulator_register(&regulators[pdev->id], &pdev->dev, pcf);
 	if (IS_ERR(rdev))
@@ -302,7 +303,7 @@ static int __devexit pcf50633_regulator_remove(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver pcf50633_regulator_driver = {
+static struct platform_driver pcf50633_regulator_driver = {
 	.driver = {
 		.name = "pcf50633-regltr",
 	},
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 1f44b17e23b..7aa35248181 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1380,6 +1380,13 @@ int wm8350_register_regulator(struct wm8350 *wm8350, int reg,
 	if (wm8350->pmic.pdev[reg])
 		return -EBUSY;
 
+	if (reg >= WM8350_DCDC_1 && reg <= WM8350_DCDC_6 &&
+	    reg > wm8350->pmic.max_dcdc)
+		return -ENODEV;
+	if (reg >= WM8350_ISINK_A && reg <= WM8350_ISINK_B &&
+	    reg > wm8350->pmic.max_isink)
+		return -ENODEV;
+
 	pdev = platform_device_alloc("wm8350-regulator", reg);
 	if (!pdev)
 		return -ENOMEM;
@@ -1405,6 +1412,97 @@ int wm8350_register_regulator(struct wm8350 *wm8350, int reg,
 }
 EXPORT_SYMBOL_GPL(wm8350_register_regulator);
 
+/**
+ * wm8350_register_led - Register a WM8350 LED output
+ *
+ * @param wm8350 The WM8350 device to configure.
+ * @param lednum LED device index to create.
+ * @param dcdc The DCDC to use for the LED.
+ * @param isink The ISINK to use for the LED.
+ * @param pdata Configuration for the LED.
+ *
+ * The WM8350 supports the use of an ISINK together with a DCDC to
+ * provide a power-efficient LED driver.  This function registers the
+ * regulators and instantiates the platform device for a LED.  The
+ * operating modes for the LED regulators must be configured using
+ * wm8350_isink_set_flash(), wm8350_dcdc25_set_mode() and
+ * wm8350_dcdc_set_slot() prior to calling this function.
+ */
+int wm8350_register_led(struct wm8350 *wm8350, int lednum, int dcdc, int isink,
+			struct wm8350_led_platform_data *pdata)
+{
+	struct wm8350_led *led;
+	struct platform_device *pdev;
+	int ret;
+
+	if (lednum > ARRAY_SIZE(wm8350->pmic.led) || lednum < 0) {
+		dev_err(wm8350->dev, "Invalid LED index %d\n", lednum);
+		return -ENODEV;
+	}
+
+	led = &wm8350->pmic.led[lednum];
+
+	if (led->pdev) {
+		dev_err(wm8350->dev, "LED %d already allocated\n", lednum);
+		return -EINVAL;
+	}
+
+	pdev = platform_device_alloc("wm8350-led", lednum);
+	if (pdev == NULL) {
+		dev_err(wm8350->dev, "Failed to allocate LED %d\n", lednum);
+		return -ENOMEM;
+	}
+
+	led->isink_consumer.dev = &pdev->dev;
+	led->isink_consumer.supply = "led_isink";
+	led->isink_init.num_consumer_supplies = 1;
+	led->isink_init.consumer_supplies = &led->isink_consumer;
+	led->isink_init.constraints.min_uA = 0;
+	led->isink_init.constraints.max_uA = pdata->max_uA;
+	led->isink_init.constraints.valid_ops_mask = REGULATOR_CHANGE_CURRENT;
+	led->isink_init.constraints.valid_modes_mask = REGULATOR_MODE_NORMAL;
+	ret = wm8350_register_regulator(wm8350, isink, &led->isink_init);
+	if (ret != 0) {
+		platform_device_put(pdev);
+		return ret;
+	}
+
+	led->dcdc_consumer.dev = &pdev->dev;
+	led->dcdc_consumer.supply = "led_vcc";
+	led->dcdc_init.num_consumer_supplies = 1;
+	led->dcdc_init.consumer_supplies = &led->dcdc_consumer;
+	led->dcdc_init.constraints.valid_modes_mask = REGULATOR_MODE_NORMAL;
+	ret = wm8350_register_regulator(wm8350, dcdc, &led->dcdc_init);
+	if (ret != 0) {
+		platform_device_put(pdev);
+		return ret;
+	}
+
+	switch (isink) {
+	case WM8350_ISINK_A:
+		wm8350->pmic.isink_A_dcdc = dcdc;
+		break;
+	case WM8350_ISINK_B:
+		wm8350->pmic.isink_B_dcdc = dcdc;
+		break;
+	}
+
+	pdev->dev.platform_data = pdata;
+	pdev->dev.parent = wm8350->dev;
+	ret = platform_device_add(pdev);
+	if (ret != 0) {
+		dev_err(wm8350->dev, "Failed to register LED %d: %d\n",
+			lednum, ret);
+		platform_device_put(pdev);
+		return ret;
+	}
+
+	led->pdev = pdev;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(wm8350_register_led);
+
 static struct platform_driver wm8350_regulator_driver = {
 	.probe = wm8350_regulator_probe,
 	.remove = wm8350_regulator_remove,
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 48b372e038a..56e23d44ba5 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -289,7 +289,7 @@ static struct regulator_desc regulators[] = {
 	},
 };
 
-static int __init wm8400_regulator_probe(struct platform_device *pdev)
+static int __devinit wm8400_regulator_probe(struct platform_device *pdev)
 {
 	struct regulator_dev *rdev;