regulator: max77686: Add set_suspend_disable/set_suspend_mode callbacks.
This patch implements set_suspend_disable callback for BUCKs which support only switch ON/OFF modes during system suspend state, and set_suspend_mode callbacks for LDOs which also suport Low power mode and switch ON/OFF modes. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Yadwinder Singh Brar
Mark Brown
parent
6d2c896b72
commit
15282ba9ea
1 changed files with 141 additions and 7 deletions
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@ -70,6 +70,82 @@ struct max77686_data {
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unsigned int opmode[MAX77686_REGULATORS];
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};
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/* Some BUCKS supports Normal[ON/OFF] mode during suspend */
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static int max77686_buck_set_suspend_disable(struct regulator_dev *rdev)
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{
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unsigned int val;
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struct max77686_data *max77686 = rdev_get_drvdata(rdev);
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if (rdev->desc->id == MAX77686_BUCK1)
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val = 0x1;
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else
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val = 0x1 << MAX77686_OPMODE_BUCK234_SHIFT;
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max77686->opmode[rdev->desc->id] = val;
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return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
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rdev->desc->enable_mask,
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val);
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}
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/* Some LDOs supports [LPM/Normal]ON mode during suspend state */
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static int max77686_set_suspend_mode(struct regulator_dev *rdev,
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unsigned int mode)
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{
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struct max77686_data *max77686 = rdev_get_drvdata(rdev);
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unsigned int val;
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/* BUCK[5-9] doesn't support this feature */
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if (rdev->desc->id >= MAX77686_BUCK5)
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return 0;
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switch (mode) {
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case REGULATOR_MODE_IDLE: /* ON in LP Mode */
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val = 0x2 << MAX77686_OPMODE_SHIFT;
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break;
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case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
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val = 0x3 << MAX77686_OPMODE_SHIFT;
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break;
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default:
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pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
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rdev->desc->name, mode);
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return -EINVAL;
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}
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max77686->opmode[rdev->desc->id] = val;
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return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
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rdev->desc->enable_mask,
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val);
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}
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/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */
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static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
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unsigned int mode)
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{
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unsigned int val;
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struct max77686_data *max77686 = rdev_get_drvdata(rdev);
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switch (mode) {
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case REGULATOR_MODE_STANDBY: /* switch off */
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val = 0x1 << MAX77686_OPMODE_SHIFT;
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break;
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case REGULATOR_MODE_IDLE: /* ON in LP Mode */
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val = 0x2 << MAX77686_OPMODE_SHIFT;
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break;
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case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
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val = 0x3 << MAX77686_OPMODE_SHIFT;
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break;
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default:
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pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
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rdev->desc->name, mode);
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return -EINVAL;
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}
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max77686->opmode[rdev->desc->id] = val;
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return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
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rdev->desc->enable_mask,
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val);
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}
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int max77686_enable(struct regulator_dev *rdev)
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{
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struct max77686_data *max77686 = rdev_get_drvdata(rdev);
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@ -113,6 +189,31 @@ static struct regulator_ops max77686_ops = {
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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.set_suspend_mode = max77686_set_suspend_mode,
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};
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static struct regulator_ops max77686_ldo_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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.is_enabled = regulator_is_enabled_regmap,
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.enable = max77686_enable,
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.disable = regulator_disable_regmap,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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.set_suspend_mode = max77686_ldo_set_suspend_mode,
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};
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static struct regulator_ops max77686_buck1_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.map_voltage = regulator_map_voltage_linear,
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.is_enabled = regulator_is_enabled_regmap,
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.enable = max77686_enable,
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.disable = regulator_disable_regmap,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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.set_suspend_disable = max77686_buck_set_suspend_disable,
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};
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static struct regulator_ops max77686_buck_dvs_ops = {
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@ -125,6 +226,7 @@ static struct regulator_ops max77686_buck_dvs_ops = {
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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.set_ramp_delay = max77686_set_ramp_delay,
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.set_suspend_disable = max77686_buck_set_suspend_disable,
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};
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#define regulator_desc_ldo(num) { \
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@ -143,7 +245,39 @@ static struct regulator_ops max77686_buck_dvs_ops = {
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.enable_mask = MAX77686_OPMODE_MASK \
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<< MAX77686_OPMODE_SHIFT, \
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}
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#define regulator_desc_lpm_ldo(num) { \
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.name = "LDO"#num, \
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.id = MAX77686_LDO##num, \
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.ops = &max77686_ldo_ops, \
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.type = REGULATOR_VOLTAGE, \
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.owner = THIS_MODULE, \
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.min_uV = MAX77686_LDO_MINUV, \
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.uV_step = MAX77686_LDO_UVSTEP, \
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.ramp_delay = MAX77686_RAMP_DELAY, \
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.n_voltages = MAX77686_VSEL_MASK + 1, \
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.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
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.vsel_mask = MAX77686_VSEL_MASK, \
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.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
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.enable_mask = MAX77686_OPMODE_MASK \
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<< MAX77686_OPMODE_SHIFT, \
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}
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#define regulator_desc_ldo_low(num) { \
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.name = "LDO"#num, \
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.id = MAX77686_LDO##num, \
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.ops = &max77686_ldo_ops, \
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.type = REGULATOR_VOLTAGE, \
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.owner = THIS_MODULE, \
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.min_uV = MAX77686_LDO_LOW_MINUV, \
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.uV_step = MAX77686_LDO_LOW_UVSTEP, \
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.ramp_delay = MAX77686_RAMP_DELAY, \
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.n_voltages = MAX77686_VSEL_MASK + 1, \
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.vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
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.vsel_mask = MAX77686_VSEL_MASK, \
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.enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
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.enable_mask = MAX77686_OPMODE_MASK \
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<< MAX77686_OPMODE_SHIFT, \
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}
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#define regulator_desc_ldo1_low(num) { \
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.name = "LDO"#num, \
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.id = MAX77686_LDO##num, \
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.ops = &max77686_ops, \
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@ -177,7 +311,7 @@ static struct regulator_ops max77686_buck_dvs_ops = {
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#define regulator_desc_buck1(num) { \
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.name = "BUCK"#num, \
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.id = MAX77686_BUCK##num, \
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.ops = &max77686_ops, \
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.ops = &max77686_buck1_ops, \
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.type = REGULATOR_VOLTAGE, \
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.owner = THIS_MODULE, \
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.min_uV = MAX77686_BUCK_MINUV, \
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@ -207,7 +341,7 @@ static struct regulator_ops max77686_buck_dvs_ops = {
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}
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static struct regulator_desc regulators[] = {
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regulator_desc_ldo_low(1),
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regulator_desc_ldo1_low(1),
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regulator_desc_ldo_low(2),
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regulator_desc_ldo(3),
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regulator_desc_ldo(4),
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@ -216,13 +350,13 @@ static struct regulator_desc regulators[] = {
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regulator_desc_ldo_low(7),
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regulator_desc_ldo_low(8),
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regulator_desc_ldo(9),
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regulator_desc_ldo(10),
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regulator_desc_ldo(11),
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regulator_desc_ldo(12),
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regulator_desc_lpm_ldo(10),
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regulator_desc_lpm_ldo(11),
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regulator_desc_lpm_ldo(12),
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regulator_desc_ldo(13),
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regulator_desc_ldo(14),
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regulator_desc_lpm_ldo(14),
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regulator_desc_ldo_low(15),
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regulator_desc_ldo(16),
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regulator_desc_lpm_ldo(16),
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regulator_desc_ldo(17),
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regulator_desc_ldo(18),
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regulator_desc_ldo(19),
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