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power: regulator: Add limits checking while setting voltage

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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@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Fixed checking of voltate limits:
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Keerthy
2016-10-26 13:42:31 +05:30
committed by Simon Glass
parent 2f5d532f3b
commit eaadcf38dd
1 changed files with 7 additions and 0 deletions
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7
drivers/power/regulator/regulator-uclass.c
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@@ -41,6 +41,13 @@ 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 (uc_pdata->min_uV != -ENODATA && uV < uc_pdata->min_uV)
return -EINVAL;
if (uc_pdata->max_uV != -ENODATA && uV > uc_pdata->max_uV)
return -EINVAL;
if (!ops || !ops->set_value)
return -ENOSYS;