summaryrefslogtreecommitdiffstats
path: root/drivers/regulator/max77686.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/regulator/max77686.c')
-rw-r--r--drivers/regulator/max77686.c170
1 files changed, 158 insertions, 12 deletions
diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c
index 2a67d08658a..b85040caaea 100644
--- a/drivers/regulator/max77686.c
+++ b/drivers/regulator/max77686.c
@@ -67,8 +67,94 @@ enum max77686_ramp_rate {
struct max77686_data {
struct regulator_dev *rdev[MAX77686_REGULATORS];
+ unsigned int opmode[MAX77686_REGULATORS];
};
+/* Some BUCKS supports Normal[ON/OFF] mode during suspend */
+static int max77686_buck_set_suspend_disable(struct regulator_dev *rdev)
+{
+ unsigned int val;
+ struct max77686_data *max77686 = rdev_get_drvdata(rdev);
+
+ if (rdev->desc->id == MAX77686_BUCK1)
+ val = 0x1;
+ else
+ val = 0x1 << MAX77686_OPMODE_BUCK234_SHIFT;
+
+ max77686->opmode[rdev->desc->id] = val;
+ return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
+ rdev->desc->enable_mask,
+ val);
+}
+
+/* Some LDOs supports [LPM/Normal]ON mode during suspend state */
+static int max77686_set_suspend_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct max77686_data *max77686 = rdev_get_drvdata(rdev);
+ unsigned int val;
+
+ /* BUCK[5-9] doesn't support this feature */
+ if (rdev->desc->id >= MAX77686_BUCK5)
+ return 0;
+
+ switch (mode) {
+ case REGULATOR_MODE_IDLE: /* ON in LP Mode */
+ val = 0x2 << MAX77686_OPMODE_SHIFT;
+ break;
+ case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
+ val = 0x3 << MAX77686_OPMODE_SHIFT;
+ break;
+ default:
+ pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
+ rdev->desc->name, mode);
+ return -EINVAL;
+ }
+
+ max77686->opmode[rdev->desc->id] = val;
+ return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
+ rdev->desc->enable_mask,
+ val);
+}
+
+/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */
+static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ unsigned int val;
+ struct max77686_data *max77686 = rdev_get_drvdata(rdev);
+
+ switch (mode) {
+ case REGULATOR_MODE_STANDBY: /* switch off */
+ val = 0x1 << MAX77686_OPMODE_SHIFT;
+ break;
+ case REGULATOR_MODE_IDLE: /* ON in LP Mode */
+ val = 0x2 << MAX77686_OPMODE_SHIFT;
+ break;
+ case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */
+ val = 0x3 << MAX77686_OPMODE_SHIFT;
+ break;
+ default:
+ pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n",
+ rdev->desc->name, mode);
+ return -EINVAL;
+ }
+
+ max77686->opmode[rdev->desc->id] = val;
+ return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
+ rdev->desc->enable_mask,
+ val);
+}
+
+static int max77686_enable(struct regulator_dev *rdev)
+{
+ struct max77686_data *max77686 = rdev_get_drvdata(rdev);
+
+ return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
+ rdev->desc->enable_mask,
+ max77686->opmode[rdev->desc->id]);
+}
+
static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
{
unsigned int ramp_value = RAMP_RATE_NO_CTRL;
@@ -98,23 +184,49 @@ static struct regulator_ops max77686_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
- .enable = regulator_enable_regmap,
+ .enable = max77686_enable,
+ .disable = regulator_disable_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .set_suspend_mode = max77686_set_suspend_mode,
+};
+
+static struct regulator_ops max77686_ldo_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = max77686_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .set_suspend_mode = max77686_ldo_set_suspend_mode,
+};
+
+static struct regulator_ops max77686_buck1_ops = {
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = max77686_enable,
+ .disable = regulator_disable_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .set_suspend_disable = max77686_buck_set_suspend_disable,
};
static struct regulator_ops max77686_buck_dvs_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
- .enable = regulator_enable_regmap,
+ .enable = max77686_enable,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = max77686_set_ramp_delay,
+ .set_suspend_disable = max77686_buck_set_suspend_disable,
};
#define regulator_desc_ldo(num) { \
@@ -133,9 +245,41 @@ static struct regulator_ops max77686_buck_dvs_ops = {
.enable_mask = MAX77686_OPMODE_MASK \
<< MAX77686_OPMODE_SHIFT, \
}
+#define regulator_desc_lpm_ldo(num) { \
+ .name = "LDO"#num, \
+ .id = MAX77686_LDO##num, \
+ .ops = &max77686_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .min_uV = MAX77686_LDO_MINUV, \
+ .uV_step = MAX77686_LDO_UVSTEP, \
+ .ramp_delay = MAX77686_RAMP_DELAY, \
+ .n_voltages = MAX77686_VSEL_MASK + 1, \
+ .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
+ .vsel_mask = MAX77686_VSEL_MASK, \
+ .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
+ .enable_mask = MAX77686_OPMODE_MASK \
+ << MAX77686_OPMODE_SHIFT, \
+}
#define regulator_desc_ldo_low(num) { \
.name = "LDO"#num, \
.id = MAX77686_LDO##num, \
+ .ops = &max77686_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ .min_uV = MAX77686_LDO_LOW_MINUV, \
+ .uV_step = MAX77686_LDO_LOW_UVSTEP, \
+ .ramp_delay = MAX77686_RAMP_DELAY, \
+ .n_voltages = MAX77686_VSEL_MASK + 1, \
+ .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
+ .vsel_mask = MAX77686_VSEL_MASK, \
+ .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \
+ .enable_mask = MAX77686_OPMODE_MASK \
+ << MAX77686_OPMODE_SHIFT, \
+}
+#define regulator_desc_ldo1_low(num) { \
+ .name = "LDO"#num, \
+ .id = MAX77686_LDO##num, \
.ops = &max77686_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
@@ -167,7 +311,7 @@ static struct regulator_ops max77686_buck_dvs_ops = {
#define regulator_desc_buck1(num) { \
.name = "BUCK"#num, \
.id = MAX77686_BUCK##num, \
- .ops = &max77686_ops, \
+ .ops = &max77686_buck1_ops, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.min_uV = MAX77686_BUCK_MINUV, \
@@ -197,7 +341,7 @@ static struct regulator_ops max77686_buck_dvs_ops = {
}
static struct regulator_desc regulators[] = {
- regulator_desc_ldo_low(1),
+ regulator_desc_ldo1_low(1),
regulator_desc_ldo_low(2),
regulator_desc_ldo(3),
regulator_desc_ldo(4),
@@ -206,13 +350,13 @@ static struct regulator_desc regulators[] = {
regulator_desc_ldo_low(7),
regulator_desc_ldo_low(8),
regulator_desc_ldo(9),
- regulator_desc_ldo(10),
- regulator_desc_ldo(11),
- regulator_desc_ldo(12),
+ regulator_desc_lpm_ldo(10),
+ regulator_desc_lpm_ldo(11),
+ regulator_desc_lpm_ldo(12),
regulator_desc_ldo(13),
- regulator_desc_ldo(14),
+ regulator_desc_lpm_ldo(14),
regulator_desc_ldo_low(15),
- regulator_desc_ldo(16),
+ regulator_desc_lpm_ldo(16),
regulator_desc_ldo(17),
regulator_desc_ldo(18),
regulator_desc_ldo(19),
@@ -280,7 +424,7 @@ static int max77686_pmic_dt_parse_pdata(struct max77686_dev *iodev,
}
#endif /* CONFIG_OF */
-static __devinit int max77686_pmic_probe(struct platform_device *pdev)
+static int max77686_pmic_probe(struct platform_device *pdev)
{
struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev);
@@ -314,12 +458,14 @@ static __devinit int max77686_pmic_probe(struct platform_device *pdev)
config.dev = &pdev->dev;
config.regmap = iodev->regmap;
+ config.driver_data = max77686;
platform_set_drvdata(pdev, max77686);
for (i = 0; i < MAX77686_REGULATORS; i++) {
config.init_data = pdata->regulators[i].initdata;
config.of_node = pdata->regulators[i].of_node;
+ max77686->opmode[i] = regulators[i].enable_mask;
max77686->rdev[i] = regulator_register(&regulators[i], &config);
if (IS_ERR(max77686->rdev[i])) {
ret = PTR_ERR(max77686->rdev[i]);
@@ -337,7 +483,7 @@ err:
return ret;
}
-static int __devexit max77686_pmic_remove(struct platform_device *pdev)
+static int max77686_pmic_remove(struct platform_device *pdev)
{
struct max77686_data *max77686 = platform_get_drvdata(pdev);
int i;
@@ -360,7 +506,7 @@ static struct platform_driver max77686_pmic_driver = {
.owner = THIS_MODULE,
},
.probe = max77686_pmic_probe,
- .remove = __devexit_p(max77686_pmic_remove),
+ .remove = max77686_pmic_remove,
.id_table = max77686_pmic_id,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-29 07:49:46 +0000