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path: root/drivers/regulator/palmas-regulator.c
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Diffstat (limited to 'drivers/regulator/palmas-regulator.c')
-rw-r--r--drivers/regulator/palmas-regulator.c166
1 files changed, 47 insertions, 119 deletions
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 07aee694ba9..e915629a25c 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -309,68 +309,22 @@ static int palmas_list_voltage_smps(struct regulator_dev *dev,
int id = rdev_get_id(dev);
int mult = 1;
- if (!selector)
- return 0;
-
/* Read the multiplier set in VSEL register to return
* the correct voltage.
*/
if (pmic->range[id])
mult = 2;
- /* Voltage is (0.49V + (selector * 0.01V)) * RANGE
- * as defined in data sheet. RANGE is either x1 or x2
- */
- return (490000 + (selector * 10000)) * mult;
-}
-
-static int palmas_get_voltage_smps_sel(struct regulator_dev *dev)
-{
- struct palmas_pmic *pmic = rdev_get_drvdata(dev);
- int id = rdev_get_id(dev);
- int selector;
- unsigned int reg;
- unsigned int addr;
-
- addr = palmas_regs_info[id].vsel_addr;
-
- palmas_smps_read(pmic->palmas, addr, &reg);
-
- selector = reg & PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
-
- /* Adjust selector to match list_voltage ranges */
- if ((selector > 0) && (selector < 6))
- selector = 6;
- if (!selector)
- selector = 5;
- if (selector > 121)
- selector = 121;
- selector -= 5;
-
- return selector;
-}
-
-static int palmas_set_voltage_smps_sel(struct regulator_dev *dev,
- unsigned selector)
-{
- struct palmas_pmic *pmic = rdev_get_drvdata(dev);
- int id = rdev_get_id(dev);
- unsigned int reg = 0;
- unsigned int addr;
-
- addr = palmas_regs_info[id].vsel_addr;
-
- /* Make sure we don't change the value of RANGE */
- if (pmic->range[id])
- reg |= PALMAS_SMPS12_VOLTAGE_RANGE;
-
- /* Adjust the linux selector into range used in VSEL register */
- if (selector)
- reg |= selector + 5;
-
- palmas_smps_write(pmic->palmas, addr, reg);
-
- return 0;
+ if (selector == 0)
+ return 0;
+ else if (selector < 6)
+ return 500000 * mult;
+ else
+ /* Voltage is linear mapping starting from selector 6,
+ * volt = (0.49V + ((selector - 5) * 0.01V)) * RANGE
+ * RANGE is either x1 or x2
+ */
+ return (490000 + ((selector - 5) * 10000)) * mult;
}
static int palmas_map_voltage_smps(struct regulator_dev *rdev,
@@ -386,11 +340,11 @@ static int palmas_map_voltage_smps(struct regulator_dev *rdev,
if (pmic->range[id]) { /* RANGE is x2 */
if (min_uV < 1000000)
min_uV = 1000000;
- ret = DIV_ROUND_UP(min_uV - 1000000, 20000) + 1;
+ ret = DIV_ROUND_UP(min_uV - 1000000, 20000) + 6;
} else { /* RANGE is x1 */
if (min_uV < 500000)
min_uV = 500000;
- ret = DIV_ROUND_UP(min_uV - 500000, 10000) + 1;
+ ret = DIV_ROUND_UP(min_uV - 500000, 10000) + 6;
}
/* Map back into a voltage to verify we're still in bounds */
@@ -407,8 +361,8 @@ static struct regulator_ops palmas_ops_smps = {
.disable = palmas_disable_smps,
.set_mode = palmas_set_mode_smps,
.get_mode = palmas_get_mode_smps,
- .get_voltage_sel = palmas_get_voltage_smps_sel,
- .set_voltage_sel = palmas_set_voltage_smps_sel,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = palmas_list_voltage_smps,
.map_voltage = palmas_map_voltage_smps,
};
@@ -436,44 +390,14 @@ static int palmas_is_enabled_ldo(struct regulator_dev *dev)
return !!(reg);
}
-static int palmas_list_voltage_ldo(struct regulator_dev *dev,
- unsigned selector)
-{
- if (!selector)
- return 0;
-
- /* voltage is 0.85V + (selector * 0.05v) */
- return 850000 + (selector * 50000);
-}
-
-static int palmas_map_voltage_ldo(struct regulator_dev *rdev,
- int min_uV, int max_uV)
-{
- int ret, voltage;
-
- if (min_uV == 0)
- return 0;
-
- if (min_uV < 900000)
- min_uV = 900000;
- ret = DIV_ROUND_UP(min_uV - 900000, 50000) + 1;
-
- /* Map back into a voltage to verify we're still in bounds */
- voltage = palmas_list_voltage_ldo(rdev, ret);
- if (voltage < min_uV || voltage > max_uV)
- return -EINVAL;
-
- return ret;
-}
-
static struct regulator_ops palmas_ops_ldo = {
.is_enabled = palmas_is_enabled_ldo,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
- .list_voltage = palmas_list_voltage_ldo,
- .map_voltage = palmas_map_voltage_ldo,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
};
/*
@@ -595,7 +519,7 @@ static struct of_regulator_match palmas_matches[] = {
{ .name = "ldousb", },
};
-static void __devinit palmas_dt_to_pdata(struct device *dev,
+static void palmas_dt_to_pdata(struct device *dev,
struct device_node *node,
struct palmas_pmic_platform_data *pdata)
{
@@ -663,7 +587,7 @@ static void __devinit palmas_dt_to_pdata(struct device *dev,
}
-static __devinit int palmas_probe(struct platform_device *pdev)
+static int palmas_probe(struct platform_device *pdev)
{
struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
struct palmas_pmic_platform_data *pdata = pdev->dev.platform_data;
@@ -733,6 +657,14 @@ static __devinit int palmas_probe(struct platform_device *pdev)
continue;
}
+ /* Initialise sleep/init values from platform data */
+ if (pdata && pdata->reg_init[id]) {
+ reg_init = pdata->reg_init[id];
+ ret = palmas_smps_init(palmas, id, reg_init);
+ if (ret)
+ goto err_unregister_regulator;
+ }
+
/* Register the regulators */
pmic->desc[id].name = palmas_regs_info[id].name;
pmic->desc[id].id = id;
@@ -753,29 +685,11 @@ static __devinit int palmas_probe(struct platform_device *pdev)
pmic->desc[id].uV_step = 1250000;
break;
default:
- pmic->desc[id].ops = &palmas_ops_smps;
- pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
- }
-
- pmic->desc[id].type = REGULATOR_VOLTAGE;
- pmic->desc[id].owner = THIS_MODULE;
-
- /* Initialise sleep/init values from platform data */
- if (pdata) {
- reg_init = pdata->reg_init[id];
- if (reg_init) {
- ret = palmas_smps_init(palmas, id, reg_init);
- if (ret)
- goto err_unregister_regulator;
- }
- }
-
- /*
- * read and store the RANGE bit for later use
- * This must be done before regulator is probed otherwise
- * we error in probe with unsuportable ranges.
- */
- if (id != PALMAS_REG_SMPS10) {
+ /*
+ * Read and store the RANGE bit for later use
+ * This must be done before regulator is probed,
+ * otherwise we error in probe with unsupportable ranges.
+ */
addr = palmas_regs_info[id].vsel_addr;
ret = palmas_smps_read(pmic->palmas, addr, &reg);
@@ -783,8 +697,19 @@ static __devinit int palmas_probe(struct platform_device *pdev)
goto err_unregister_regulator;
if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
pmic->range[id] = 1;
+
+ pmic->desc[id].ops = &palmas_ops_smps;
+ pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
+ pmic->desc[id].vsel_reg =
+ PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
+ palmas_regs_info[id].vsel_addr);
+ pmic->desc[id].vsel_mask =
+ PALMAS_SMPS12_VOLTAGE_VSEL_MASK;
}
+ pmic->desc[id].type = REGULATOR_VOLTAGE;
+ pmic->desc[id].owner = THIS_MODULE;
+
if (pdata)
config.init_data = pdata->reg_data[id];
else
@@ -821,6 +746,9 @@ static __devinit int palmas_probe(struct platform_device *pdev)
pmic->desc[id].type = REGULATOR_VOLTAGE;
pmic->desc[id].owner = THIS_MODULE;
+ pmic->desc[id].min_uV = 900000;
+ pmic->desc[id].uV_step = 50000;
+ pmic->desc[id].linear_min_sel = 1;
pmic->desc[id].vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
palmas_regs_info[id].vsel_addr);
pmic->desc[id].vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK;
@@ -868,7 +796,7 @@ err_unregister_regulator:
return ret;
}
-static int __devexit palmas_remove(struct platform_device *pdev)
+static int palmas_remove(struct platform_device *pdev)
{
struct palmas_pmic *pmic = platform_get_drvdata(pdev);
int id;
@@ -890,7 +818,7 @@ static struct platform_driver palmas_driver = {
.owner = THIS_MODULE,
},
.probe = palmas_probe,
- .remove = __devexit_p(palmas_remove),
+ .remove = palmas_remove,
};
static int __init palmas_init(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-02 16:38:54 +0000