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| author | Axel Lin <axel.lin@ingics.com> | 2021-06-19 15:34:23 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-06-21 15:07:46 +0300 |
| commit | 57c045bc727001c43b6a65adb0418aa7b3e6dbd0 (patch) | |
| tree | d77c4c8f43a7e630b6310891739f0fa9a47109a8 /drivers/regulator/hi6421v600-regulator.c | |
| parent | 01c5741b82969d096ac0870d997b7d2f5a5fe970 (diff) | |
| download | linux-57c045bc727001c43b6a65adb0418aa7b3e6dbd0.tar.xz | |
regulator: hi6421v600: Fix setting idle mode
commit db27f8294cd7 changed eco_mode << (ffs(sreg->eco_mode_mask) - 1)
to sreg->eco_mode_mask << (ffs(sreg->eco_mode_mask) - 1) which is wrong.
Fix it by simply set val = sreg->eco_mode_mask.
In additional, sreg->eco_mode_mask can be 0 (LDO3, LDO33, LDO34).
Return -EINVAL if idle mode is not supported when sreg->eco_mode_mask is 0.
While at it, also use unsigned int for reg_val/val which is the expected
type for regmap_read and regmap_update_bits.
Fixes: db27f8294cd7 ("staging: regulator: hi6421v600-regulator: use shorter names for OF properties")
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20210619123423.4091429-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/hi6421v600-regulator.c')
| -rw-r--r-- | drivers/regulator/hi6421v600-regulator.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/regulator/hi6421v600-regulator.c b/drivers/regulator/hi6421v600-regulator.c index 417cf5b4a1c3..cf14109d486f 100644 --- a/drivers/regulator/hi6421v600-regulator.c +++ b/drivers/regulator/hi6421v600-regulator.c @@ -117,7 +117,7 @@ static int hi6421_spmi_regulator_enable(struct regulator_dev *rdev) static unsigned int hi6421_spmi_regulator_get_mode(struct regulator_dev *rdev) { struct hi6421_spmi_reg_info *sreg = rdev_get_drvdata(rdev); - u32 reg_val; + unsigned int reg_val; regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val); @@ -131,14 +131,17 @@ static int hi6421_spmi_regulator_set_mode(struct regulator_dev *rdev, unsigned int mode) { struct hi6421_spmi_reg_info *sreg = rdev_get_drvdata(rdev); - u32 val; + unsigned int val; switch (mode) { case REGULATOR_MODE_NORMAL: val = 0; break; case REGULATOR_MODE_IDLE: - val = sreg->eco_mode_mask << (ffs(sreg->eco_mode_mask) - 1); + if (!sreg->eco_mode_mask) + return -EINVAL; + + val = sreg->eco_mode_mask; break; default: return -EINVAL; |