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

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This commit is contained in:
Mark Brown
2012-12-10 12:43:00 +09:00
parent 9e21867073 e1b0144f99
commit adca48f7c6
7 changed files with 63 additions and 256 deletions
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176
drivers/regulator/pcf50633-regulator.c
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@@ -24,12 +24,15 @@
#include <linux/mfd/pcf50633/core.h>
#include <linux/mfd/pcf50633/pmic.h>
#define PCF50633_REGULATOR(_name, _id, _n) \
#define PCF50633_REGULATOR(_name, _id, _min_uV, _uV_step, _min_sel, _n) \
{ \
.name = _name, \
.id = PCF50633_REGULATOR_##_id, \
.ops = &pcf50633_regulator_ops, \
.n_voltages = _n, \
.min_uV = _min_uV, \
.uV_step = _uV_step, \
.linear_min_sel = _min_sel, \
.type = REGULATOR_VOLTAGE, \
.owner = THIS_MODULE, \
.vsel_reg = PCF50633_REG_##_id##OUT, \
@@ -38,162 +41,39 @@
.enable_mask = PCF50633_REGULATOR_ON, \
}
/* Bits from voltage value */
static u8 auto_voltage_bits(unsigned int millivolts)
{
if (millivolts < 1800)
return 0x2f;
if (millivolts > 3800)
return 0xff;
millivolts -= 625;
return millivolts / 25;
}
static u8 down_voltage_bits(unsigned int millivolts)
{
if (millivolts < 625)
return 0;
else if (millivolts > 3000)
return 0xff;
millivolts -= 625;
return millivolts / 25;
}
static u8 ldo_voltage_bits(unsigned int millivolts)
{
if (millivolts < 900)
return 0;
else if (millivolts > 3600)
return 0x1f;
millivolts -= 900;
return millivolts / 100;
}
/* Obtain voltage value from bits */
static unsigned int auto_voltage_value(u8 bits)
{
/* AUTOOUT: 00000000 to 00101110 are reserved.
* Return 0 for bits in reserved range, which means this selector code
* can't be used on this system */
if (bits < 0x2f)
return 0;
return 625 + (bits * 25);
}
static unsigned int down_voltage_value(u8 bits)
{
return 625 + (bits * 25);
}
static unsigned int ldo_voltage_value(u8 bits)
{
bits &= 0x1f;
return 900 + (bits * 100);
}
static int pcf50633_regulator_map_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct pcf50633 *pcf;
int regulator_id, millivolts;
u8 volt_bits;
pcf = rdev_get_drvdata(rdev);
regulator_id = rdev_get_id(rdev);
if (regulator_id >= PCF50633_NUM_REGULATORS)
return -EINVAL;
millivolts = min_uV / 1000;
switch (regulator_id) {
case PCF50633_REGULATOR_AUTO:
volt_bits = auto_voltage_bits(millivolts);
break;
case PCF50633_REGULATOR_DOWN1:
case PCF50633_REGULATOR_DOWN2:
volt_bits = down_voltage_bits(millivolts);
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:
case PCF50633_REGULATOR_MEMLDO:
volt_bits = ldo_voltage_bits(millivolts);
break;
default:
return -EINVAL;
}
return volt_bits;
}
static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev,
unsigned int index)
{
int regulator_id = rdev_get_id(rdev);
int millivolts;
switch (regulator_id) {
case PCF50633_REGULATOR_AUTO:
millivolts = auto_voltage_value(index);
break;
case PCF50633_REGULATOR_DOWN1:
case PCF50633_REGULATOR_DOWN2:
millivolts = down_voltage_value(index);
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:
case PCF50633_REGULATOR_MEMLDO:
millivolts = ldo_voltage_value(index);
break;
default:
return -EINVAL;
}
return millivolts * 1000;
}
static struct regulator_ops pcf50633_regulator_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = pcf50633_regulator_list_voltage,
.map_voltage = pcf50633_regulator_map_voltage,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
};
static const struct regulator_desc regulators[] = {
[PCF50633_REGULATOR_AUTO] = PCF50633_REGULATOR("auto", AUTO, 128),
[PCF50633_REGULATOR_DOWN1] = PCF50633_REGULATOR("down1", DOWN1, 96),
[PCF50633_REGULATOR_DOWN2] = PCF50633_REGULATOR("down2", DOWN2, 96),
[PCF50633_REGULATOR_LDO1] = PCF50633_REGULATOR("ldo1", LDO1, 28),
[PCF50633_REGULATOR_LDO2] = PCF50633_REGULATOR("ldo2", LDO2, 28),
[PCF50633_REGULATOR_LDO3] = PCF50633_REGULATOR("ldo3", LDO3, 28),
[PCF50633_REGULATOR_LDO4] = PCF50633_REGULATOR("ldo4", LDO4, 28),
[PCF50633_REGULATOR_LDO5] = PCF50633_REGULATOR("ldo5", LDO5, 28),
[PCF50633_REGULATOR_LDO6] = PCF50633_REGULATOR("ldo6", LDO6, 28),
[PCF50633_REGULATOR_HCLDO] = PCF50633_REGULATOR("hcldo", HCLDO, 28),
[PCF50633_REGULATOR_MEMLDO] = PCF50633_REGULATOR("memldo", MEMLDO, 28),
[PCF50633_REGULATOR_AUTO] =
PCF50633_REGULATOR("auto", AUTO, 1800000, 25000, 0x2f, 128),
[PCF50633_REGULATOR_DOWN1] =
PCF50633_REGULATOR("down1", DOWN1, 625000, 25000, 0, 96),
[PCF50633_REGULATOR_DOWN2] =
PCF50633_REGULATOR("down2", DOWN2, 625000, 25000, 0, 96),
[PCF50633_REGULATOR_LDO1] =
PCF50633_REGULATOR("ldo1", LDO1, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO2] =
PCF50633_REGULATOR("ldo2", LDO2, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO3] =
PCF50633_REGULATOR("ldo3", LDO3, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO4] =
PCF50633_REGULATOR("ldo4", LDO4, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO5] =
PCF50633_REGULATOR("ldo5", LDO5, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_LDO6] =
PCF50633_REGULATOR("ldo6", LDO6, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_HCLDO] =
PCF50633_REGULATOR("hcldo", HCLDO, 900000, 100000, 0, 28),
[PCF50633_REGULATOR_MEMLDO] =
PCF50633_REGULATOR("memldo", MEMLDO, 900000, 100000, 0, 28),
};
static int pcf50633_regulator_probe(struct platform_device *pdev)