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regulator: mp8859: Support mode operations

Browse source 
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>
This commit is contained in:
Mark Brown 2024-02-25 14:59:30 +00:00
parent b79d93d99e
commit 673d06a858
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 39 additions and 0 deletions
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39
drivers/regulator/mp8859.c
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@ -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[] = {