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| author | Axel Lin <axel.lin@gmail.com> | 2012-04-02 09:16:08 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-02 23:15:19 +0100 |
| commit | 7f52ba7791a35a8e13a3be992fc98da66e68b77d (patch) | |
| tree | 601b53f79ef9515e6cfae40eff5d9ae59ed74267 /drivers/regulator/max8925-regulator.c | |
| parent | 42ff943148f78d6d60d345a52c7cfc6ae3bdf1cf (diff) | |
| download | linux-7f52ba7791a35a8e13a3be992fc98da66e68b77d.tar.gz linux-7f52ba7791a35a8e13a3be992fc98da66e68b77d.tar.bz2 linux-7f52ba7791a35a8e13a3be992fc98da66e68b77d.zip | |
regulator: Add missing n_voltages setting for max8925
The n_voltages are the same for all regulators: (max - min / step) + 1 == 64.
The vol_shift is always 0, and the vol_nbits is always the same as n_voltages
setting. Thus we can remove vol_shitf and vol_nbits fields from struct
max8925_regulator_info.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/max8925-regulator.c')
| -rw-r--r-- | drivers/regulator/max8925-regulator.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/regulator/max8925-regulator.c b/drivers/regulator/max8925-regulator.c index ad8b093861d4..a62f3b5cc312 100644 --- a/drivers/regulator/max8925-regulator.c +++ b/drivers/regulator/max8925-regulator.c @@ -42,8 +42,6 @@ struct max8925_regulator_info { int max_uV; int step_uV; int vol_reg; - int vol_shift; - int vol_nbits; int enable_reg; }; @@ -75,8 +73,7 @@ static int max8925_set_voltage(struct regulator_dev *rdev, } data = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV); *selector = data; - data <<= info->vol_shift; - mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; + mask = rdev->desc->n_voltages - 1; return max8925_set_bits(info->i2c, info->vol_reg, mask, data); } @@ -90,8 +87,8 @@ static int max8925_get_voltage(struct regulator_dev *rdev) ret = max8925_reg_read(info->i2c, info->vol_reg); if (ret < 0) return ret; - mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; - data = (ret & mask) >> info->vol_shift; + mask = rdev->desc->n_voltages - 1; + data = ret & mask; return max8925_list_voltage(rdev, data); } @@ -191,13 +188,12 @@ static struct regulator_ops max8925_regulator_ldo_ops = { .type = REGULATOR_VOLTAGE, \ .id = MAX8925_ID_SD##_id, \ .owner = THIS_MODULE, \ + .n_voltages = 64, \ }, \ .min_uV = min * 1000, \ .max_uV = max * 1000, \ .step_uV = step * 1000, \ .vol_reg = MAX8925_SDV##_id, \ - .vol_shift = 0, \ - .vol_nbits = 6, \ .enable_reg = MAX8925_SDCTL##_id, \ } @@ -209,13 +205,12 @@ static struct regulator_ops max8925_regulator_ldo_ops = { .type = REGULATOR_VOLTAGE, \ .id = MAX8925_ID_LDO##_id, \ .owner = THIS_MODULE, \ + .n_voltages = 64, \ }, \ .min_uV = min * 1000, \ .max_uV = max * 1000, \ .step_uV = step * 1000, \ .vol_reg = MAX8925_LDOVOUT##_id, \ - .vol_shift = 0, \ - .vol_nbits = 6, \ .enable_reg = MAX8925_LDOCTL##_id, \ } |