Unverified Commit 673d06a8 authored by Mark Brown's avatar Mark Brown
Browse files

regulator: mp8859: Support mode operations 



The MP8859 provides mode control, implement the relevant regulator API
operations.

Tested-by: default avatarMarkus Reichl <m.reichl@fivetechno.de>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Link: https://msgid.link/r/20240225-regulator-mp8859-v1-4-68ee2c839ded@kernel.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent b79d93d9

drivers/regulator/mp8859.c

+39 −0
Original line number Diff line number Diff line
@@ -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[] = {