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>
This commit is contained in:
Adam Ward
Mark Brown
Родитель
5c4b62af1d
Коммит
65ac97042d
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@ -101,6 +101,11 @@ static const struct da9121_field da9121_current_field[2] = {
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{ DA9xxx_REG_BUCK_BUCK2_2, DA9121_MASK_BUCK_BUCKx_2_CHx_ILIM },
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};
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static const struct da9121_field da9121_mode_field[2] = {
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{ DA9121_REG_BUCK_BUCK1_4, DA9121_MASK_BUCK_BUCKx_4_CHx_A_MODE },
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{ DA9xxx_REG_BUCK_BUCK2_4, DA9121_MASK_BUCK_BUCKx_4_CHx_A_MODE },
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};
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static int da9121_get_current_limit(struct regulator_dev *rdev)
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{
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struct da9121 *chip = rdev_get_drvdata(rdev);
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@ -202,6 +207,67 @@ error:
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return ret;
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}
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static unsigned int da9121_map_mode(unsigned int mode)
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{
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switch (mode) {
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case DA9121_BUCK_MODE_FORCE_PWM:
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return REGULATOR_MODE_FAST;
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case DA9121_BUCK_MODE_FORCE_PWM_SHEDDING:
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return REGULATOR_MODE_NORMAL;
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case DA9121_BUCK_MODE_AUTO:
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return REGULATOR_MODE_IDLE;
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case DA9121_BUCK_MODE_FORCE_PFM:
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return REGULATOR_MODE_STANDBY;
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default:
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return -EINVAL;
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}
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}
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static int da9121_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
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{
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struct da9121 *chip = rdev_get_drvdata(rdev);
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int id = rdev_get_id(rdev);
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unsigned int val;
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switch (mode) {
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case REGULATOR_MODE_FAST:
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val = DA9121_BUCK_MODE_FORCE_PWM;
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break;
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case REGULATOR_MODE_NORMAL:
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val = DA9121_BUCK_MODE_FORCE_PWM_SHEDDING;
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break;
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case REGULATOR_MODE_IDLE:
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val = DA9121_BUCK_MODE_AUTO;
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break;
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case REGULATOR_MODE_STANDBY:
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val = DA9121_BUCK_MODE_FORCE_PFM;
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break;
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default:
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return -EINVAL;
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}
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return regmap_update_bits(chip->regmap,
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da9121_mode_field[id].reg,
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da9121_mode_field[id].msk,
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val);
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}
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static unsigned int da9121_buck_get_mode(struct regulator_dev *rdev)
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{
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struct da9121 *chip = rdev_get_drvdata(rdev);
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int id = rdev_get_id(rdev);
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unsigned int val;
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int ret = 0;
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ret = regmap_read(chip->regmap, da9121_mode_field[id].reg, &val);
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if (ret < 0) {
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dev_err(chip->dev, "Cannot read BUCK register: %d\n", ret);
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return -EINVAL;
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}
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return da9121_map_mode(val & da9121_mode_field[id].msk);
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}
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static const struct regulator_ops da9121_buck_ops = {
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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@ -211,6 +277,8 @@ static const struct regulator_ops da9121_buck_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.get_current_limit = da9121_get_current_limit,
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.set_current_limit = da9121_set_current_limit,
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.set_mode = da9121_buck_set_mode,
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.get_mode = da9121_buck_get_mode,
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};
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static struct of_regulator_match da9121_matches[] = {
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@ -285,6 +353,7 @@ static const struct regulator_desc da9121_reg = {
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.of_parse_cb = da9121_of_parse_cb,
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.owner = THIS_MODULE,
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.regulators_node = of_match_ptr("regulators"),
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.of_map_mode = da9121_map_mode,
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.ops = &da9121_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = DA9121_N_VOLTAGES,
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@ -309,6 +378,7 @@ static const struct regulator_desc da9220_reg[2] = {
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.of_parse_cb = da9121_of_parse_cb,
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.owner = THIS_MODULE,
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.regulators_node = of_match_ptr("regulators"),
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.of_map_mode = da9121_map_mode,
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.ops = &da9121_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = DA9121_N_VOLTAGES,
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@ -327,6 +397,7 @@ static const struct regulator_desc da9220_reg[2] = {
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.of_parse_cb = da9121_of_parse_cb,
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.owner = THIS_MODULE,
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.regulators_node = of_match_ptr("regulators"),
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.of_map_mode = da9121_map_mode,
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.ops = &da9121_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = DA9121_N_VOLTAGES,
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@ -348,6 +419,7 @@ static const struct regulator_desc da9122_reg[2] = {
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.of_parse_cb = da9121_of_parse_cb,
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.owner = THIS_MODULE,
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.regulators_node = of_match_ptr("regulators"),
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.of_map_mode = da9121_map_mode,
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.ops = &da9121_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = DA9121_N_VOLTAGES,
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@ -366,6 +438,7 @@ static const struct regulator_desc da9122_reg[2] = {
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.of_parse_cb = da9121_of_parse_cb,
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.owner = THIS_MODULE,
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.regulators_node = of_match_ptr("regulators"),
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.of_map_mode = da9121_map_mode,
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.ops = &da9121_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = DA9121_N_VOLTAGES,
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@ -386,6 +459,7 @@ static const struct regulator_desc da9217_reg = {
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.of_parse_cb = da9121_of_parse_cb,
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.owner = THIS_MODULE,
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.regulators_node = of_match_ptr("regulators"),
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.of_map_mode = da9121_map_mode,
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.ops = &da9121_buck_ops,
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.type = REGULATOR_VOLTAGE,
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.n_voltages = DA9121_N_VOLTAGES,
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