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Merge remote-tracking branch 'regulator/topic/palmas' into regulator-next

This commit is contained in:
Mark Brown 2012-12-10 12:43:17 +09:00
parent adca48f7c6 bdc4baaceb
commit e6120461e5
1 changed files with 38 additions and 83 deletions
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121
drivers/regulator/palmas-regulator.c
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@ -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,
};
@ -703,6 +657,14 @@ static 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;
@ -723,29 +685,11 @@ static 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);
@ -753,8 +697,19 @@ static 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