3 files changed, 20 insertions, 3 deletions

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index f540b1496e2f..d17e1ff7ad01 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -101,6 +101,8 @@ struct regmap;
  *                      Data passed is "struct pre_voltage_change_data"
  * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason.
  *                      Data passed is old voltage cast to (void *).
+ * PRE_DISABLE    Regulator is about to be disabled
+ * ABORT_DISABLE  Regulator disable failed for some reason
  *
  * NOTE: These events can be OR'ed together when passed into handler.
  */
@@ -115,6 +117,8 @@ struct regmap;
 #define REGULATOR_EVENT_DISABLE                 0x80
 #define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE      0x100
 #define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE    0x200
+#define REGULATOR_EVENT_PRE_DISABLE             0x400
+#define REGULATOR_EVENT_ABORT_DISABLE           0x800
 
 /**
  * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
@@ -284,7 +288,7 @@ devm_regulator_get(struct device *dev, const char *id)
 static inline struct regulator *__must_check
 regulator_get_exclusive(struct device *dev, const char *id)
 {
-        return NULL;
+        return ERR_PTR(-ENODEV);
 }
 
 static inline struct regulator *__must_check
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index fc0ee0ce8325..5f1e9ca47417 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -243,6 +243,8 @@ enum regulator_type {
  *
  * @enable_time: Time taken for initial enable of regulator (in uS).
  * @off_on_delay: guard time (in uS), before re-enabling a regulator
+ *
+ * @of_map_mode: Maps a hardware mode defined in a DeviceTree to a standard mode
  */
 struct regulator_desc {
         const char *name;
@@ -285,6 +287,8 @@ struct regulator_desc {
         unsigned int enable_time;
 
         unsigned int off_on_delay;
+
+        unsigned int (*of_map_mode)(unsigned int mode);
 };
 
 /**
@@ -301,6 +305,9 @@ struct regulator_desc {
  *           NULL).
  * @regmap: regmap to use for core regmap helpers if dev_get_regulator() is
  *          insufficient.
+ * @ena_gpio_initialized: GPIO controlling regulator enable was properly
+ *                        initialized, meaning that >= 0 is a valid gpio
+ *                        identifier and < 0 is a non existent gpio.
  * @ena_gpio: GPIO controlling regulator enable.
  * @ena_gpio_invert: Sense for GPIO enable control.
  * @ena_gpio_flags: Flags to use when calling gpio_request_one()
@@ -312,6 +319,7 @@ struct regulator_config {
         struct device_node *of_node;
         struct regmap *regmap;
 
+        bool ena_gpio_initialized;
         int ena_gpio;
         unsigned int ena_gpio_invert:1;
         unsigned int ena_gpio_flags;
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
index f9217965aaa3..763953f7e3b8 100644
--- a/include/linux/regulator/of_regulator.h
+++ b/include/linux/regulator/of_regulator.h
@@ -6,24 +6,29 @@
 #ifndef __LINUX_OF_REG_H
 #define __LINUX_OF_REG_H
 
+struct regulator_desc;
+
 struct of_regulator_match {
         const char *name;
         void *driver_data;
         struct regulator_init_data *init_data;
         struct device_node *of_node;
+        const struct regulator_desc *desc;
 };
 
 #if defined(CONFIG_OF)
 extern struct regulator_init_data
         *of_get_regulator_init_data(struct device *dev,
-                                    struct device_node *node);
+                                    struct device_node *node,
+                                    const struct regulator_desc *desc);
 extern int of_regulator_match(struct device *dev, struct device_node *node,
                               struct of_regulator_match *matches,
                               unsigned int num_matches);
 #else
 static inline struct regulator_init_data
         *of_get_regulator_init_data(struct device *dev,
-                                    struct device_node *node)
+                                    struct device_node *node,
+                                    const struct regulator_desc *desc)
 {
         return NULL;
 }