diff options
| author | Axel Lin <axel.lin@gmail.com> | 2012-06-07 10:38:30 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-06-08 07:29:47 +0800 |
| commit | ee3ed6effd8cc4c0cbfa35307cfc5fcec75b5e12 (patch) | |
| tree | a61eee540cfac1df79bd1988b149d8c204879726 | |
| parent | 985f769c89aedcae2981080051fc85b4ed035a9b (diff) | |
regulator: da903x: Don't read/write to DA9030_INVAL/DA9034_INVAL address
For fixed voltage, DA9030_LDO13 and DA9034_LDO5, the info->vol_reg is
DA9030_INVAL/DA9034_INVAL.
It does not make sense to read/write to DA9030_INVAL/DA9034_INVAL address.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| -rw-r--r-- | drivers/regulator/da903x.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c index 1005f5f7e60..36c5b92fe0a 100644 --- a/drivers/regulator/da903x.c +++ b/drivers/regulator/da903x.c @@ -107,6 +107,9 @@ static int da903x_set_voltage_sel(struct regulator_dev *rdev, unsigned selector) struct device *da9034_dev = to_da903x_dev(rdev); uint8_t val, mask; + if (rdev->desc->n_voltages == 1) + return -EINVAL; + val = selector << info->vol_shift; mask = ((1 << info->vol_nbits) - 1) << info->vol_shift; @@ -120,6 +123,9 @@ static int da903x_get_voltage_sel(struct regulator_dev *rdev) uint8_t val, mask; int ret; + if (rdev->desc->n_voltages == 1) + return 0; + ret = da903x_read(da9034_dev, info->vol_reg, &val); if (ret) return ret; |