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| author | Adam Ward <Adam.Ward.opensource@diasemi.com> | 2020-11-30 16:59:13 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-12-01 12:18:03 +0000 |
| commit | 65ac97042d4e0918b401b5f21e2810efa27be848 (patch) | |
| tree | 5618a2122fa7084bd5d8343ff986cf0c4724e429 /drivers/regulator | |
| parent | 5c4b62af1d58fe3823dfb462ce553ceb9729c8fa (diff) | |
| download | linux-65ac97042d4e0918b401b5f21e2810efa27be848.tar.gz | |
regulator: da9121: add mode support
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>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/da9121-regulator.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/regulator/da9121-regulator.c b/drivers/regulator/da9121-regulator.c index a69acb26f748..8e50f55af45d 100644 --- a/drivers/regulator/da9121-regulator.c +++ b/drivers/regulator/da9121-regulator.c @@ -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, |