static int max8698_ldo_disable(struct regulator_dev *rdev)
{
struct max8698_data *max8698 = rdev_get_drvdata(rdev);
int ldo = max8698_get_ldo(rdev);
int value, shift;
if (ldo <= MAX8698_LDO5) {
value = max8698_read_reg(max8698, MAX8698_REG_ONOFF1);
shift = 6 - ldo;
value &= ~(1 << shift);
max8698_write_reg(max8698, value, MAX8698_REG_ONOFF1);
} else if (ldo <= MAX8698_LDO9) {
value = max8698_read_reg(max8698, MAX8698_REG_ONOFF2);
shift = 13 - ldo;
value &= ~(1 << shift);
max8698_write_reg(max8698, value, MAX8698_REG_ONOFF2);
} else {
value = max8698_read_reg(max8698, MAX8698_REG_ONOFF1);
shift = 7 - (ldo - MAX8698_DCDC1);
value |= (1 << shift);
max8698_write_reg(max8698, value, MAX8698_REG_ONOFF1);
}
return 0;
}
static int max8698_ldo_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct max8698_data *max8698 = rdev_get_drvdata(rdev);
int ldo = max8698_get_ldo(rdev);
int value, shift = 0, mask = 0xff, reg;
int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
const int *vol_map = ldo_voltage_map[ldo];
int i = 0;
if (min_vol < 800 ||
max_vol > 3600)
return -EINVAL;
while (vol_map[i]) {
if (vol_map[i] >= min_vol)
break;
i++;
}
if (!vol_map[i])
return -EINVAL;
if (vol_map[i] > max_vol)
return -EINVAL;
if (ldo == MAX8698_LDO2) {
reg = MAX8698_REG_LDO23;
mask = 0x0f;
} else if (ldo == MAX8698_LDO3) {
reg = MAX8698_REG_LDO23;
shift = 4;
mask = 0xf0;
} else if (ldo == MAX8698_LDO8) {
reg = ldo + 5;
shift = 4;
mask = 0xf0;
} else if (ldo <= MAX8698_LDO9) {
reg = ldo + 5;
mask = 0xff;
} else if (ldo == MAX8698_DCDC1) {
reg = 0x04;
mask = 0x0f;
} else if (ldo == MAX8698_DCDC2) {
reg = 0x06;
mask = 0x0f;
} else {
reg = 0x07;
mask = 0xff;
}
value = max8698_read_reg(max8698, reg);
value &= ~mask;
value |= (i << shift);
max8698_write_reg(max8698, value, reg);
return 0;
}
static int max8698_ldo_disable(struct regulator_dev *rdev)
{
struct max8698_data *max8698 = rdev_get_drvdata(rdev);
int reg, shift = 8, value, ret;
ret = max8698_get_register(rdev, ®, &shift);
if (ret)
return ret;
value = max8698_read_reg(max8698, reg);
if (value & (1 << shift)) {
value &= ~(1 << shift);
ret = max8698_write_reg(max8698, reg, value);
}
printk("%s[%d] ldo %d\n", __func__, __LINE__, max8698_get_ldo(rdev));
return ret;
}
