dm: regulator: add function device_get_supply_regulator()

Some devices are supplied by configurable regulator's output. But there was no function for getting it. This commit adds function, that allows for getting the supply device by it's phandle. The returned regulator device can be used with regulator uclass's API. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

dm: regulator: add function device_get_supply_regulator()
Some devices are supplied by configurable regulator's output. But there was no function for getting it. This commit adds function, that allows for getting the supply device by it's phandle. The returned regulator device can be used with regulator uclass's API. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Przemyslaw Marczak · Minkyu Kang
1 parent 35d460fbc8
Showing 2 changed files with 23 additions and 0 deletions Side-by-side Diff
drivers/power/regulator/regulator-uclass.c
include/power/regulator.h
@@ -138,6 +138,13 @@
 	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;
@@ -419,5 +419,21 @@
  */
 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_ */
...	...	@@ -138,6 +138,13 @@
138	138	return uclass_get_device_by_name(UCLASS_REGULATOR, devname, devp);
139	139	}
140	140
	141	+int device_get_supply_regulator(struct udevice dev, const char supply_name,
	142	+ struct udevice **devp)
	143	+{
	144	+ return uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
	145	+ supply_name, devp);
	146	+}
	147	+
141	148	int regulator_autoset(struct udevice *dev)
142	149	{
143	150	struct dm_regulator_uclass_platdata *uc_pdata;
...	...	@@ -419,5 +419,21 @@
419	419	*/
420	420	int regulator_get_by_platname(const char platname, struct udevice *devp);
421	421
	422	+/**
	423	+ * device_get_supply_regulator: returns the pointer to the supply regulator.
	424	+ * Search by phandle, found in device's node.
	425	+ *
	426	+ * Note: Please pay attention to proper order of device bind sequence.
	427	+ * The regulator device searched by the phandle, must be binded before
	428	+ * this function call.
	429	+ *
	430	+ * @dev - device with supply phandle
	431	+ * @supply_name - phandle name of regulator
	432	+ * @devp - returned pointer to the supply device
	433	+ * @return 0 on success or negative value of errno.
	434	+ */
	435	+int device_get_supply_regulator(struct udevice dev, const char supply_name,
	436	+ struct udevice **devp);
	437	+
422	438	#endif /* _INCLUDE_REGULATOR_H_ */