static int max8893_ldo_get_voltage(struct regulator_dev *rdev)
{
struct max8893_data *max8893 = rdev_get_drvdata(rdev);
int ldo = max8893_get_ldo(rdev);
int value, shift = 0, mask = 0xff, reg;
DBG("func =%s called for regulator = %d\n",__func__,ldo);
if (ldo == MAX8893_LDO1) {
reg = MAX8893_REG_LDO1;
} else if (ldo == MAX8893_LDO2) {
reg = MAX8893_REG_LDO2;
} else if (ldo == MAX8893_LDO3) {
reg = MAX8893_REG_LDO3;
} else if (ldo == MAX8893_LDO4) {
reg = MAX8893_REG_LDO4;
} else if (ldo == MAX8893_LDO5) {
reg = MAX8893_REG_LDO5;
} else if (ldo == MAX8893_BUCK) {
reg = MAX8893_REG_BUCK;
}
value = max8893_read_reg(max8893, reg);
// value >>= shift;
// value &= mask;
return 1000 * ldo_8893_voltage_map[ldo][value];
}
static int max8893_ldo_set_voltage(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct max8893_data *max8893 = rdev_get_drvdata(rdev);
int ldo = max8893_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_8893_voltage_map[ldo];
int i = 0;
DBG("func =%s called for regulator = %d, min_v=%d, max_v=%d\n",__func__,ldo,min_uV,max_uV);
if (min_vol < 800 ||
max_vol > 3300)
return -EINVAL;
while (vol_map[i]) {
if (vol_map[i] >= min_vol)
break;
i++;
}
value = i;
DBG("Found voltage=%d, i = %x\n",vol_map[i], i);
if (!vol_map[i])
return -EINVAL;
if (vol_map[i] > max_vol)
return -EINVAL;
if (ldo == MAX8893_LDO1) {
reg = MAX8893_REG_LDO1;
} else if (ldo == MAX8893_LDO2) {
reg = MAX8893_REG_LDO2;
} else if (ldo == MAX8893_LDO3) {
reg = MAX8893_REG_LDO3;
} else if (ldo == MAX8893_LDO4) {
reg = MAX8893_REG_LDO4;
} else if (ldo == MAX8893_LDO5) {
reg = MAX8893_REG_LDO5;
} else if (ldo == MAX8893_BUCK) {
reg = MAX8893_REG_BUCK;
}
// value = max8893_read_reg(max8893, reg);
// value &= ~mask;
// value |= (i << shift);
max8893_write_reg(max8893, value, reg);
return 0;
}
static int max8893_ldo_is_enabled(struct regulator_dev *rdev)
{
struct max8893_data *max8893 = rdev_get_drvdata(rdev);
int ldo = max8893_get_ldo(rdev);
int value, shift;
if (ldo <= MAX8893_LDO5) { /*LDO1~LDO5*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 6 - ldo;
} else { /*BUCK*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 7;
}
return (value >> shift) & 0x1;
}
static int max8893_ldo_is_enabled(struct regulator_dev *rdev)
{
struct max8893_data *max8893 = rdev_get_drvdata(rdev);
int ldo = max8893_get_ldo(rdev);
u8 value, shift; //NAGSM_Android_SEL_Kernel_Aakash_20101005
if (ldo <= MAX8893_LDO5) { /*LDO1~LDO5*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 6 - ldo;
} else { /*BUCK*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 7;
}
return (value >> shift) & 0x1;
}
static int max8893_ldo_disable(struct regulator_dev *rdev)
{
struct max8893_data *max8893 = rdev_get_drvdata(rdev);
int ldo = max8893_get_ldo(rdev);
int value, shift;
DBG("func =%s called for regulator = %d\n",__func__,ldo);
if (ldo <= MAX8893_LDO5) { /*LDO1~LDO5*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 6 - ldo;
value &= ~(1 << shift);
max8893_write_reg(max8893, value, MAX8893_REG_ONOFF);
} else { /*BUCK*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 7;
value &= ~(1 << shift);
max8893_write_reg(max8893, value, MAX8893_REG_ONOFF);
}
return 0;
}
static int max8893_ldo_enable(struct regulator_dev *rdev)
{
struct max8893_data *max8893 = rdev_get_drvdata(rdev);
int ldo = max8893_get_ldo(rdev);
u8 value, shift; //NAGSM_Android_SEL_Kernel_Aakash_20101005
DBG("func =%s called for regulator = %d\n",__func__,ldo);
if (ldo <= MAX8893_LDO5) { /*LDO1~LDO5*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 6 - ldo;
value |= (1 << shift);
max8893_write_reg(max8893, value, MAX8893_REG_ONOFF);
} else { /*BUCK*/
value = max8893_read_reg(max8893, MAX8893_REG_ONOFF);
shift = 7;
value |= (1 << shift);
max8893_write_reg(max8893, value, MAX8893_REG_ONOFF);
}
return 0;
}
