[U-Boot] [PATCH] power: regulator: Add limits checking while setting voltage and current

[Keerthy <j-keerthy@ti.com>]

Currently the specific set ops functions are directly
called without any check for voltage/current limits for a regulator.
Check for them and proceed.

Signed-off-by: Keerthy <j-keerthy@ti.com>
---
 drivers/power/regulator/regulator-uclass.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
index 4434e36..089455e 100644
--- a/drivers/power/regulator/regulator-uclass.c
+++ b/drivers/power/regulator/regulator-uclass.c
@@ -41,6 +41,11 @@ int regulator_get_value(struct udevice *dev)
 int regulator_set_value(struct udevice *dev, int uV)
 {
 	const struct dm_regulator_ops *ops = dev_get_driver_ops(dev);
+	struct dm_regulator_uclass_platdata *uc_pdata;
+
+	uc_pdata = dev_get_uclass_platdata(dev);
+	if (uV < uc_pdata->min_uV || uV > uc_pdata->max_uV)
+		return -EINVAL;
 
 	if (!ops || !ops->set_value)
 		return -ENOSYS;
@@ -61,6 +66,11 @@ int regulator_get_current(struct udevice *dev)
 int regulator_set_current(struct udevice *dev, int uA)
 {
 	const struct dm_regulator_ops *ops = dev_get_driver_ops(dev);
+	struct dm_regulator_uclass_platdata *uc_pdata;
+
+	uc_pdata = dev_get_uclass_platdata(dev);
+	if (uA < uc_pdata->min_uA || uA > uc_pdata->max_uA)
+		return -EINVAL;
 
 	if (!ops || !ops->set_current)
 		return -ENOSYS;
-- 
1.9.1