diff options
author | Axel Lin <axel.lin@ingics.com> | 2013-04-17 22:55:45 +0800 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-18 18:26:35 +0100 |
commit | 5d9de8b1216c60c15b02982c9f6b4875f757db02 (patch) | |
tree | 20316c4244b59db7ac87bb1491b59da441787247 /drivers/regulator | |
parent | 9135d3bcec6c087fa2ef4fbde8b80ff8b27b34c7 (diff) | |
download | linux-5d9de8b1216c60c15b02982c9f6b4875f757db02.tar.bz2 |
regulator: ab8500: Get rid of voltage_shift field from struct ab8500_regulator_info
The voltage_shift can be calculated from voltage_mask.
Let's remove voltage_shift fied from struct ab8500_regulator_info, this change
can prevent missing voltage_shift setting issue.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator')
-rw-r--r-- | drivers/regulator/ab8500.c | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index ece31a33aa2e..f6656b8c28b6 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -61,7 +61,6 @@ struct ab8500_shared_mode { * @voltage_bank: bank to control regulator voltage * @voltage_reg: register to control regulator voltage * @voltage_mask: mask to control regulator voltage - * @voltage_shift: shift to control regulator voltage */ struct ab8500_regulator_info { struct device *dev; @@ -83,7 +82,6 @@ struct ab8500_regulator_info { u8 voltage_bank; u8 voltage_reg; u8 voltage_mask; - u8 voltage_shift; struct { u8 voltage_limit; u8 voltage_bank; @@ -480,7 +478,7 @@ static unsigned int ab8500_regulator_get_mode(struct regulator_dev *rdev) static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev) { - int ret, val; + int ret, voltage_shift; struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); u8 regval; @@ -489,6 +487,8 @@ static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev) return -EINVAL; } + voltage_shift = ffs(info->voltage_mask) - 1; + ret = abx500_get_register_interruptible(info->dev, info->voltage_bank, info->voltage_reg, ®val); if (ret < 0) { @@ -502,15 +502,14 @@ static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev) "0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n", info->desc.name, info->voltage_bank, info->voltage_reg, info->voltage_mask, - info->voltage_shift, regval); + voltage_shift, regval); - val = regval & info->voltage_mask; - return val >> info->voltage_shift; + return (regval & info->voltage_mask) >> voltage_shift; } static int ab8540_aux3_regulator_get_voltage_sel(struct regulator_dev *rdev) { - int ret; + int ret, voltage_shift; struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); u8 regval, regval_expand; @@ -550,13 +549,15 @@ static int ab8540_aux3_regulator_get_voltage_sel(struct regulator_dev *rdev) info->desc.name, info->voltage_bank, info->voltage_reg, info->voltage_mask, regval); - return (regval & info->voltage_mask) >> info->voltage_shift; + voltage_shift = ffs(info->voltage_mask) - 1; + + return (regval & info->voltage_mask) >> voltage_shift; } static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) { - int ret; + int ret, voltage_shift; struct ab8500_regulator_info *info = rdev_get_drvdata(rdev); u8 regval; @@ -565,8 +566,10 @@ static int ab8500_regulator_set_voltage_sel(struct regulator_dev *rdev, return -EINVAL; } + voltage_shift = ffs(info->voltage_mask) - 1; + /* set the registers for the request */ - regval = (u8)selector << info->voltage_shift; + regval = (u8)selector << voltage_shift; ret = abx500_mask_and_set_register_interruptible(info->dev, info->voltage_bank, info->voltage_reg, info->voltage_mask, regval); @@ -596,7 +599,9 @@ static int ab8540_aux3_regulator_set_voltage_sel(struct regulator_dev *rdev, } if (selector < info->expand_register.voltage_limit) { - regval = (u8)selector << info->voltage_shift; + int voltage_shift = ffs(info->voltage_mask) - 1; + + regval = (u8)selector << voltage_shift; ret = abx500_mask_and_set_register_interruptible(info->dev, info->voltage_bank, info->voltage_reg, info->voltage_mask, regval); @@ -791,7 +796,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x03, .voltage_reg = 0x80, .voltage_mask = 0x38, - .voltage_shift = 3, }, /* @@ -1066,7 +1070,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x03, .voltage_reg = 0x80, .voltage_mask = 0x38, - .voltage_shift = 3, }, /* @@ -1127,7 +1130,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x01, .voltage_reg = 0x57, .voltage_mask = 0x70, - .voltage_shift = 4, }, [AB8505_LDO_ANAMIC1] = { .desc = { @@ -1327,7 +1329,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x03, .voltage_reg = 0x80, .voltage_mask = 0x38, - .voltage_shift = 3, }, /* @@ -1622,7 +1623,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x03, .voltage_reg = 0x80, .voltage_mask = 0x38, - .voltage_shift = 3, }, /* @@ -1724,7 +1724,6 @@ static struct ab8500_regulator_info .voltage_bank = 0x03, .voltage_reg = 0x83, .voltage_mask = 0xc0, - .voltage_shift = 6, }, /* |