diff options
Diffstat (limited to 'drivers/regulator/da903x.c')
| -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 1005f5f7e603..36c5b92fe0af 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; |