[U-Boot] [PATCH 2/3] power: regulator: Add limits checking while setting voltage
Keerthy
j-keerthy at ti.com
Wed Oct 26 10:12:31 CEST 2016
Currently the specific set ops functions are directly
called without any check for voltage limits for a regulator.
Check for them and proceed.
Signed-off-by: Keerthy <j-keerthy at ti.com>
---
drivers/power/regulator/regulator-uclass.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/power/regulator/regulator-uclass.c b/drivers/power/regulator/regulator-uclass.c
index d644009..34087c8 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;
--
1.9.1
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