[PATCH v2 3/5] regulator: rk8xx: Return correct voltage for switchout converters

[Jonas Karlman]

From: shengfei Xu <xsf at rock-chips.com>

The voltage value for switchout converters is always reported as 0 uV.
When the switch is enabled, it's voltage is same as input supply.

Fix this by implementing get_value for switchout converters.

Fixes: ee30068fa574 ("power: pmic: rk809: support rk809 pmic")
Signed-off-by: shengfei Xu <xsf at rock-chips.com>
[jonas at kwiboo.se: fix checkpatch error, update commit message]
Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
v2:
- New patch

 drivers/power/regulator/rk8xx.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/power/regulator/rk8xx.c b/drivers/power/regulator/rk8xx.c
index 9444daa85c19..e80bd6c37230 100644
--- a/drivers/power/regulator/rk8xx.c
+++ b/drivers/power/regulator/rk8xx.c
@@ -1032,6 +1032,25 @@ static int switch_get_suspend_enable(struct udevice *dev)
  */
 static int switch_get_value(struct udevice *dev)
 {
+	static const char * const supply_name_rk809[] = {
+		"vcc9-supply",
+		"vcc8-supply",
+	};
+	struct rk8xx_priv *priv = dev_get_priv(dev->parent);
+	struct udevice *supply;
+	int id = dev->driver_data - 1;
+
+	if (!switch_get_enable(dev))
+		return 0;
+
+	if (priv->variant == RK809_ID) {
+		if (!uclass_get_device_by_phandle(UCLASS_REGULATOR,
+						  dev->parent,
+						  supply_name_rk809[id],
+						  &supply))
+			return regulator_get_value(supply);
+	}
+
 	return 0;
 }
 
-- 
2.41.0