diff options
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/pcf50633-regulator.c | 96 |
1 files changed, 64 insertions, 32 deletions
diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c index 70ba77557650..0803ffe6236d 100644 --- a/drivers/regulator/pcf50633-regulator.c +++ b/drivers/regulator/pcf50633-regulator.c @@ -24,11 +24,12 @@ #include <linux/mfd/pcf50633/core.h> #include <linux/mfd/pcf50633/pmic.h> -#define PCF50633_REGULATOR(_name, _id) \ +#define PCF50633_REGULATOR(_name, _id, _n) \ { \ .name = _name, \ .id = _id, \ .ops = &pcf50633_regulator_ops, \ + .n_voltages = _n, \ .type = REGULATOR_VOLTAGE, \ .owner = THIS_MODULE, \ } @@ -149,11 +150,42 @@ static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev, return pcf50633_reg_write(pcf, regnr, volt_bits); } +static int pcf50633_regulator_voltage_value(enum pcf50633_regulator_id id, + u8 bits) +{ + int millivolts; + + switch (id) { + case PCF50633_REGULATOR_AUTO: + millivolts = auto_voltage_value(bits); + break; + case PCF50633_REGULATOR_DOWN1: + millivolts = down_voltage_value(bits); + break; + case PCF50633_REGULATOR_DOWN2: + millivolts = down_voltage_value(bits); + break; + case PCF50633_REGULATOR_LDO1: + case PCF50633_REGULATOR_LDO2: + case PCF50633_REGULATOR_LDO3: + case PCF50633_REGULATOR_LDO4: + case PCF50633_REGULATOR_LDO5: + case PCF50633_REGULATOR_LDO6: + case PCF50633_REGULATOR_HCLDO: + millivolts = ldo_voltage_value(bits); + break; + default: + return -EINVAL; + } + + return millivolts * 1000; +} + static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev) { struct pcf50633 *pcf; - int regulator_id, millivolts, volt_bits; - u8 regnr; + int regulator_id; + u8 volt_bits, regnr; pcf = rdev_get_drvdata(rdev); @@ -164,33 +196,32 @@ static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev) regnr = pcf50633_regulator_registers[regulator_id]; volt_bits = pcf50633_reg_read(pcf, regnr); - if (volt_bits < 0) - return -1; + + return pcf50633_regulator_voltage_value(regulator_id, volt_bits); +} + +static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev, + unsigned int index) +{ + struct pcf50633 *pcf; + int regulator_id; + + pcf = rdev_get_drvdata(rdev); + + regulator_id = rdev_get_id(rdev); switch (regulator_id) { case PCF50633_REGULATOR_AUTO: - millivolts = auto_voltage_value(volt_bits); - break; - case PCF50633_REGULATOR_DOWN1: - millivolts = down_voltage_value(volt_bits); - break; - case PCF50633_REGULATOR_DOWN2: - millivolts = down_voltage_value(volt_bits); + index += 0x2f; break; - case PCF50633_REGULATOR_LDO1: - case PCF50633_REGULATOR_LDO2: - case PCF50633_REGULATOR_LDO3: - case PCF50633_REGULATOR_LDO4: - case PCF50633_REGULATOR_LDO5: - case PCF50633_REGULATOR_LDO6: case PCF50633_REGULATOR_HCLDO: - millivolts = ldo_voltage_value(volt_bits); + index += 0x01; break; default: - return -EINVAL; + break; } - return millivolts * 1000; + return pcf50633_regulator_voltage_value(regulator_id, index); } static int pcf50633_regulator_enable(struct regulator_dev *rdev) @@ -246,6 +277,7 @@ static int pcf50633_regulator_is_enabled(struct regulator_dev *rdev) static struct regulator_ops pcf50633_regulator_ops = { .set_voltage = pcf50633_regulator_set_voltage, .get_voltage = pcf50633_regulator_get_voltage, + .list_voltage = pcf50633_regulator_list_voltage, .enable = pcf50633_regulator_enable, .disable = pcf50633_regulator_disable, .is_enabled = pcf50633_regulator_is_enabled, @@ -253,27 +285,27 @@ static struct regulator_ops pcf50633_regulator_ops = { static struct regulator_desc regulators[] = { [PCF50633_REGULATOR_AUTO] = - PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO), + PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO, 80), [PCF50633_REGULATOR_DOWN1] = - PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1), + PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1, 95), [PCF50633_REGULATOR_DOWN2] = - PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2), + PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2, 95), [PCF50633_REGULATOR_LDO1] = - PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1), + PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1, 27), [PCF50633_REGULATOR_LDO2] = - PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2), + PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2, 27), [PCF50633_REGULATOR_LDO3] = - PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3), + PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3, 27), [PCF50633_REGULATOR_LDO4] = - PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4), + PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4, 27), [PCF50633_REGULATOR_LDO5] = - PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5), + PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5, 27), [PCF50633_REGULATOR_LDO6] = - PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6), + PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6, 27), [PCF50633_REGULATOR_HCLDO] = - PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO), + PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO, 26), [PCF50633_REGULATOR_MEMLDO] = - PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO), + PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO, 0), }; static int __devinit pcf50633_regulator_probe(struct platform_device *pdev) |