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-rw-r--r--drivers/power/regulator/regulator-uclass.c7
-rw-r--r--include/power/regulator.h16
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
index a5170df..4241a4c 100644
--- a/drivers/power/regulator/regulator-uclass.c
+++ b/drivers/power/regulator/regulator-uclass.c
@@ -138,6 +138,13 @@ int regulator_get_by_devname(const char *devname, struct udevice **devp)
return uclass_get_device_by_name(UCLASS_REGULATOR, devname, devp);
}
+int device_get_supply_regulator(struct udevice *dev, const char *supply_name,
+ struct udevice **devp)
+{
+ return uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
+ supply_name, devp);
+}
+
int regulator_autoset(struct udevice *dev)
{
struct dm_regulator_uclass_platdata *uc_pdata;
diff --git a/include/power/regulator.h b/include/power/regulator.h
index 1a51c3f..63c0814 100644
--- a/include/power/regulator.h
+++ b/include/power/regulator.h
@@ -419,4 +419,20 @@ int regulator_get_by_devname(const char *devname, struct udevice **devp);
*/
int regulator_get_by_platname(const char *platname, struct udevice **devp);
+/**
+ * device_get_supply_regulator: returns the pointer to the supply regulator.
+ * Search by phandle, found in device's node.
+ *
+ * Note: Please pay attention to proper order of device bind sequence.
+ * The regulator device searched by the phandle, must be binded before
+ * this function call.
+ *
+ * @dev - device with supply phandle
+ * @supply_name - phandle name of regulator
+ * @devp - returned pointer to the supply device
+ * @return 0 on success or negative value of errno.
+ */
+int device_get_supply_regulator(struct udevice *dev, const char *supply_name,
+ struct udevice **devp);
+
#endif /* _INCLUDE_REGULATOR_H_ */