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regulator: max77686: Don't update max77686->opmode if update register fails

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Ensure max77686->opmode always has correct status.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@sirena.org.uk>
This commit is contained in:
Axel Lin 2013-04-27 16:18:16 +08:00 committed by Mark Brown
parent 60d509fa6a
commit 3ecf198eab
1 changed files with 21 additions and 11 deletions
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32
drivers/regulator/max77686.c
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@ -75,17 +75,20 @@ static int max77686_buck_set_suspend_disable(struct regulator_dev *rdev)
{
unsigned int val;
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
int ret, id = rdev_get_id(rdev);
if (id == MAX77686_BUCK1)
val = 0x1;
else
val = 0x1 << MAX77686_OPMODE_BUCK234_SHIFT;
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
if (ret)
return ret;
max77686->opmode[id] = val;
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
val);
return 0;
}
/* Some LDOs supports [LPM/Normal]ON mode during suspend state */
@ -94,7 +97,7 @@ static int max77686_set_suspend_mode(struct regulator_dev *rdev,
{
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
unsigned int val;
int id = rdev_get_id(rdev);
int ret, id = rdev_get_id(rdev);
/* BUCK[5-9] doesn't support this feature */
if (id >= MAX77686_BUCK5)
@ -113,10 +116,13 @@ static int max77686_set_suspend_mode(struct regulator_dev *rdev,
return -EINVAL;
}
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
if (ret)
return ret;
max77686->opmode[id] = val;
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
val);
return 0;
}
/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */
@ -125,6 +131,7 @@ static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
{
unsigned int val;
struct max77686_data *max77686 = rdev_get_drvdata(rdev);
int ret;
switch (mode) {
case REGULATOR_MODE_STANDBY: /* switch off */
@ -142,10 +149,13 @@ static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
return -EINVAL;
}
ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask, val);
if (ret)
return ret;
max77686->opmode[rdev_get_id(rdev)] = val;
return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
rdev->desc->enable_mask,
val);
return 0;
}
static int max77686_enable(struct regulator_dev *rdev)