From 673d06a858864c7dca9dd5c36a78f5f7fda793af Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sun, 25 Feb 2024 14:59:30 +0000 Subject: [PATCH] regulator: mp8859: Support mode operations The MP8859 provides mode control, implement the relevant regulator API operations. Tested-by: Markus Reichl Signed-off-by: Mark Brown Link: https://msgid.link/r/20240225-regulator-mp8859-v1-4-68ee2c839ded@kernel.org Signed-off-by: Mark Brown --- drivers/regulator/mp8859.c | 39 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/regulator/mp8859.c b/drivers/regulator/mp8859.c index a443ebe927c59..b97c00097148e 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[] = { -- 2.30.2