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| author | Mark Brown <broonie@kernel.org> | 2024-02-25 14:59:30 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-02-26 13:46:51 +0000 |
| commit | 673d06a858864c7dca9dd5c36a78f5f7fda793af (patch) | |
| tree | 27e2d351f91bc6cd509c01b5dc4edb2fb980a372 /drivers/regulator | |
| parent | b79d93d99e084bf1abafba2b7aabff6a06defcd0 (diff) | |
| download | linux-673d06a858864c7dca9dd5c36a78f5f7fda793af.tar.gz | |
regulator: mp8859: Support mode operations
The MP8859 provides mode control, implement the relevant regulator API
operations.
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://msgid.link/r/20240225-regulator-mp8859-v1-4-68ee2c839ded@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
| -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 a443ebe927c59f..b97c00097148e6 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[] = { |