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Code

regulator: da9121: add mode support

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Adds get/set for mode, and mapping from REGULATOR_MODE_* to select
PFM/PWM/Auto operation.

Signed-off-by: Adam Ward <Adam.Ward.opensource@diasemi.com>
Link: https://lore.kernel.org/r/7844c8f6facb6f7c0649381629cc75ccad14723d.1606755367.git.Adam.Ward.opensource@diasemi.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Adam Ward 2020-11-30 16:59:13 +00:00 committed by Mark Brown
parent 5c4b62af1d
commit 65ac97042d
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 74 additions and 0 deletions
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74
drivers/regulator/da9121-regulator.c
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@ -101,6 +101,11 @@ static const struct da9121_field da9121_current_field[2] = {
{ DA9xxx_REG_BUCK_BUCK2_2, DA9121_MASK_BUCK_BUCKx_2_CHx_ILIM },
};
static const struct da9121_field da9121_mode_field[2] = {
{ DA9121_REG_BUCK_BUCK1_4, DA9121_MASK_BUCK_BUCKx_4_CHx_A_MODE },
{ DA9xxx_REG_BUCK_BUCK2_4, DA9121_MASK_BUCK_BUCKx_4_CHx_A_MODE },
};
static int da9121_get_current_limit(struct regulator_dev *rdev)
{
struct da9121 *chip = rdev_get_drvdata(rdev);
@ -202,6 +207,67 @@ error:
return ret;
}
static unsigned int da9121_map_mode(unsigned int mode)
{
switch (mode) {
case DA9121_BUCK_MODE_FORCE_PWM:
return REGULATOR_MODE_FAST;
case DA9121_BUCK_MODE_FORCE_PWM_SHEDDING:
return REGULATOR_MODE_NORMAL;
case DA9121_BUCK_MODE_AUTO:
return REGULATOR_MODE_IDLE;
case DA9121_BUCK_MODE_FORCE_PFM:
return REGULATOR_MODE_STANDBY;
default:
return -EINVAL;
}
}
static int da9121_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct da9121 *chip = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
unsigned int val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = DA9121_BUCK_MODE_FORCE_PWM;
break;
case REGULATOR_MODE_NORMAL:
val = DA9121_BUCK_MODE_FORCE_PWM_SHEDDING;
break;
case REGULATOR_MODE_IDLE:
val = DA9121_BUCK_MODE_AUTO;
break;
case REGULATOR_MODE_STANDBY:
val = DA9121_BUCK_MODE_FORCE_PFM;
break;
default:
return -EINVAL;
}
return regmap_update_bits(chip->regmap,
da9121_mode_field[id].reg,
da9121_mode_field[id].msk,
val);
}
static unsigned int da9121_buck_get_mode(struct regulator_dev *rdev)
{
struct da9121 *chip = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
unsigned int val;
int ret = 0;
ret = regmap_read(chip->regmap, da9121_mode_field[id].reg, &val);
if (ret < 0) {
dev_err(chip->dev, "Cannot read BUCK register: %d\n", ret);
return -EINVAL;
}
return da9121_map_mode(val & da9121_mode_field[id].msk);
}
static const struct regulator_ops da9121_buck_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@ -211,6 +277,8 @@ static const struct regulator_ops da9121_buck_ops = {
.list_voltage = regulator_list_voltage_linear,
.get_current_limit = da9121_get_current_limit,
.set_current_limit = da9121_set_current_limit,
.set_mode = da9121_buck_set_mode,
.get_mode = da9121_buck_get_mode,
};
static struct of_regulator_match da9121_matches[] = {
@ -285,6 +353,7 @@ static const struct regulator_desc da9121_reg = {
.of_parse_cb = da9121_of_parse_cb,
.owner = THIS_MODULE,
.regulators_node = of_match_ptr("regulators"),
.of_map_mode = da9121_map_mode,
.ops = &da9121_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = DA9121_N_VOLTAGES,
@ -309,6 +378,7 @@ static const struct regulator_desc da9220_reg[2] = {
.of_parse_cb = da9121_of_parse_cb,
.owner = THIS_MODULE,
.regulators_node = of_match_ptr("regulators"),
.of_map_mode = da9121_map_mode,
.ops = &da9121_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = DA9121_N_VOLTAGES,
@ -327,6 +397,7 @@ static const struct regulator_desc da9220_reg[2] = {
.of_parse_cb = da9121_of_parse_cb,
.owner = THIS_MODULE,
.regulators_node = of_match_ptr("regulators"),
.of_map_mode = da9121_map_mode,
.ops = &da9121_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = DA9121_N_VOLTAGES,
@ -348,6 +419,7 @@ static const struct regulator_desc da9122_reg[2] = {
.of_parse_cb = da9121_of_parse_cb,
.owner = THIS_MODULE,
.regulators_node = of_match_ptr("regulators"),
.of_map_mode = da9121_map_mode,
.ops = &da9121_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = DA9121_N_VOLTAGES,
@ -366,6 +438,7 @@ static const struct regulator_desc da9122_reg[2] = {
.of_parse_cb = da9121_of_parse_cb,
.owner = THIS_MODULE,
.regulators_node = of_match_ptr("regulators"),
.of_map_mode = da9121_map_mode,
.ops = &da9121_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = DA9121_N_VOLTAGES,
@ -386,6 +459,7 @@ static const struct regulator_desc da9217_reg = {
.of_parse_cb = da9121_of_parse_cb,
.owner = THIS_MODULE,
.regulators_node = of_match_ptr("regulators"),
.of_map_mode = da9121_map_mode,
.ops = &da9121_buck_ops,
.type = REGULATOR_VOLTAGE,
.n_voltages = DA9121_N_VOLTAGES,