[PATCH 4/8] power: regulator: Add vin-supply for GPIO and Fixed regulators

[Ye Li]

Enable the vin-supply when probing the regulator device.

Signed-off-by: Ye Li <ye.li at nxp.com>
---
 drivers/power/regulator/regulator_common.c | 10 ++++++++++
 drivers/power/regulator/regulator_common.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/drivers/power/regulator/regulator_common.c b/drivers/power/regulator/regulator_common.c
index e3565d32a019..c80f10c3aa3f 100644
--- a/drivers/power/regulator/regulator_common.c
+++ b/drivers/power/regulator/regulator_common.c
@@ -45,6 +45,16 @@ int regulator_common_of_to_plat(struct udevice *dev,
 			dev_read_u32_default(dev, "u-boot,off-on-delay-us", 0);
 	}
 
+	ret = device_get_supply_regulator(dev, "vin-supply", &plat->vin_supply);
+	if (ret) {
+		debug("Regulator vin regulator not defined: %d\n", ret);
+		if (ret != -ENOENT)
+			return ret;
+	}
+
+	if (plat->vin_supply)
+		regulator_set_enable_if_allowed(plat->vin_supply, true);
+
 	return 0;
 }
 
diff --git a/drivers/power/regulator/regulator_common.h b/drivers/power/regulator/regulator_common.h
index d4962899d830..799c968d0b66 100644
--- a/drivers/power/regulator/regulator_common.h
+++ b/drivers/power/regulator/regulator_common.h
@@ -14,6 +14,7 @@ struct regulator_common_plat {
 	unsigned int startup_delay_us;
 	unsigned int off_on_delay_us;
 	unsigned int enable_count;
+	struct udevice *vin_supply;
 };
 
 int regulator_common_of_to_plat(struct udevice *dev,
-- 
2.7.4