diff options
| -rw-r--r-- | drivers/regulator/mp8859.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/regulator/mp8859.c b/drivers/regulator/mp8859.c index a443ebe927c5..b97c00097148 100644 --- a/drivers/regulator/mp8859.c +++ b/drivers/regulator/mp8859.c @@ -36,6 +36,7 @@ #define MP8859_GO_BIT 0x01 #define MP8859_ENABLE_MASK 0x80 +#define MP8859_MODE_MASK 0x08 static int mp8859_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel) { @@ -74,6 +75,42 @@ static int mp8859_get_voltage_sel(struct regulator_dev *rdev) return val; } +static unsigned int mp8859_get_mode(struct regulator_dev *rdev) +{ + unsigned int val; + int ret; + + ret = regmap_read(rdev->regmap, MP8859_CTL1_REG, &val); + if (ret != 0) { + dev_err(&rdev->dev, "Failed to read mode: %d\n", ret); + return 0; + } + + if (val & MP8859_MODE_MASK) + return REGULATOR_MODE_FAST; + else + return REGULATOR_MODE_NORMAL; +} + +static int mp8859_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + unsigned int val; + + switch (mode) { + case REGULATOR_MODE_FAST: + val = MP8859_MODE_MASK; + break; + case REGULATOR_MODE_NORMAL: + val = 0; + break; + default: + return -EINVAL; + } + + return regmap_update_bits(rdev->regmap, MP8859_CTL1_REG, + MP8859_MODE_MASK, val); +} + static const struct linear_range mp8859_dcdc_ranges[] = { REGULATOR_LINEAR_RANGE(0, VOL_MIN_IDX, VOL_MAX_IDX, 10000), }; @@ -128,6 +165,8 @@ static const struct regulator_ops mp8859_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, + .set_mode = mp8859_set_mode, + .get_mode = mp8859_get_mode, }; static const struct regulator_desc mp8859_regulators[] = { |