static int d2041_regulator_disable(struct regulator_dev *rdev)
{
struct d2041 *d2041 = rdev_get_drvdata(rdev);
unsigned int regulator_id = rdev_get_id(rdev);
unsigned int reg_num = 0;
int ret = 0;
u8 reg_val;
if (regulator_id >= D2041_NUMBER_OF_REGULATORS)
return -EINVAL;
if(!is_mode_control_enabled()){
reg_num = get_regulator_reg(regulator_id);
d2041_reg_read(d2041, reg_num, ®_val);
reg_val &= ~(1<<6);
d2041_reg_write(d2041, reg_num, reg_val);
}else{
reg_num = get_regulator_mctl_reg(regulator_id);
/* 0x00 == D2041_REGULATOR_MCTL0_OFF | D2041_REGULATOR_MCTL1_OFF
* | D2041_REGULATOR_MCTL2_OFF | D2041_REGULATOR_MCTL3_OFF
*/
ret = d2041_reg_write(d2041, reg_num, 0x00);
}
return ret;
}
static int d2041_regulator_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV)
{
struct d2041 *d2041 = rdev_get_drvdata(rdev);
int mV_val;
int min_mV = uV_to_mV(min_uV);
int max_mV = uV_to_mV(max_uV);
unsigned int reg_num, regulator_id = rdev_get_id(rdev);
u8 val;
int ret = 0;
/* before we do anything check the lock bit */
ret = d2041_reg_read(d2041, D2041_SUPPLY_REG, &val);
if(val & D2041_SUPPLY_VLOCK)
d2041_clear_bits(d2041, D2041_SUPPLY_REG, D2041_SUPPLY_VLOCK);
mV_val = d2041_regulator_mvolts_to_val(min_mV, regulator_id, rdev);
/* Sanity check for maximum value */
if (d2041_regulator_val_to_mvolts(mV_val, regulator_id, rdev) > max_mV)
return -EINVAL;
reg_num = get_regulator_reg(regulator_id);
ret = d2041_reg_read(d2041, reg_num, &val);
val &= ~D2041_MAX_VSEL;
d2041_reg_write(d2041, reg_num, (val | mV_val));
/* For BUCKs enable the ramp */
if (regulator_id <= D2041_BUCK_4)
d2041_set_bits(d2041, D2041_SUPPLY_REG, (D2041_SUPPLY_VBUCK1GO << regulator_id));
return ret;
}
static int d2041_regulator_enable(struct regulator_dev *rdev)
{
struct d2041 *d2041 = rdev_get_drvdata(rdev);
u8 reg_val;
int ret = 0;
unsigned int regulator_id = rdev_get_id(rdev);
unsigned int reg_num;
if (regulator_id >= D2041_NUMBER_OF_REGULATORS)
return -EINVAL;
if(!is_mode_control_enabled()){
reg_num = get_regulator_reg(regulator_id);
d2041_reg_read(d2041, reg_num, ®_val);
reg_val |= (1<<6);
ret = d2041_reg_write(d2041, reg_num,reg_val);
}else {
reg_num = get_regulator_mctl_reg(regulator_id);
ret = d2041_reg_read(d2041, reg_num, ®_val);
if(ret < 0) {
dlg_err("I2C read error\n");
return ret;
}
reg_val &= ~(D2041_REGULATOR_MCTL1 | D2041_REGULATOR_MCTL3); // Clear MCTL11 and MCTL01
reg_val |= (D2041_REGULATOR_MCTL1_ON | D2041_REGULATOR_MCTL3_ON);
switch(get_regulator_dsm_opmode(regulator_id)) {
case D2041_REGULATOR_LPM_IN_DSM :
reg_val &= ~(D2041_REGULATOR_MCTL0 | D2041_REGULATOR_MCTL2);
reg_val |= (D2041_REGULATOR_MCTL0_SLEEP | D2041_REGULATOR_MCTL2_SLEEP);
break;
case D2041_REGULATOR_OFF_IN_DSM :
reg_val &= ~(D2041_REGULATOR_MCTL0 | D2041_REGULATOR_MCTL2);
break;
case D2041_REGULATOR_ON_IN_DSM :
reg_val &= ~(D2041_REGULATOR_MCTL0 | D2041_REGULATOR_MCTL2);
reg_val |= (D2041_REGULATOR_MCTL0_ON | D2041_REGULATOR_MCTL2_ON);
break;
}
ret |= d2041_reg_write(d2041, reg_num, reg_val);
}
return ret;
}
static int d2041_regulator_get_voltage(struct regulator_dev *rdev)
{
struct d2041 *d2041 = rdev_get_drvdata(rdev);
unsigned int reg_num, regulator_id = rdev_get_id(rdev);
int ret;
u8 val;
dlg_info("[[%s]], regulator_id[%d]\n", __func__, regulator_id);
reg_num = get_regulator_reg(regulator_id);
ret = d2041_reg_read(d2041, reg_num, &val);
val &= D2041_MAX_VSEL;
ret = mV_to_uV(d2041_regulator_val_to_mvolts(val, regulator_id, rdev));
return ret;
}
static int d2083_regulator_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,unsigned *selector)
{
struct d2083 *d2083 = rdev_get_drvdata(rdev);
int mV_val;
int min_mV = uV_to_mV(min_uV);
int max_mV = uV_to_mV(max_uV);
unsigned int reg_num, regulator_id = rdev_get_id(rdev);
u8 val;
int ret = 0;
*selector = -1;
// Neet to implement parameter *selector : reference v_table / num_voltages
/* before we do anything check the lock bit */
ret = d2083_reg_read(d2083, D2083_SUPPLY_REG, &val);
if(val & D2083_SUPPLY_VLOCK)
d2083_clear_bits(d2083, D2083_SUPPLY_REG, D2083_SUPPLY_VLOCK);
mV_val = d2083_regulator_mvolts_to_val(min_mV, regulator_id, rdev);
/* Sanity check for maximum value */
if (d2083_regulator_val_to_mvolts(mV_val, regulator_id, rdev) > max_mV)
return -EINVAL;
reg_num = get_regulator_reg(regulator_id);
ret = d2083_reg_read(d2083, reg_num, &val);
val &= ~D2083_MAX_VSEL;
d2083_reg_write(d2083, reg_num, (val | mV_val));
/* For BUCKs enable the ramp */
if (regulator_id <= D2083_BUCK_4)
d2083_set_bits(d2083, D2083_SUPPLY_REG, (D2083_SUPPLY_VBUCK1GO << regulator_id));
*selector = regulator_id;
return ret;
}
static int d2041_regulator_is_enabled(struct regulator_dev *rdev)
{
struct d2041 *d2041 = rdev_get_drvdata(rdev);
unsigned int reg_num, regulator_id = rdev_get_id(rdev);
int ret = -EINVAL;
u8 reg_val = 0;
if(!is_mode_control_enabled()){
reg_num = get_regulator_reg(regulator_id);
ret = d2041_reg_read(d2041, reg_num, ®_val);
if(ret < 0) {
dlg_err("I2C read error. \n");
return ret;
}
/* 0x0 : off, 0x1 : on */
ret = reg_val & (1<<6);
}else{
if (regulator_id >= D2041_NUMBER_OF_REGULATORS)
return -EINVAL;
reg_num = get_regulator_mctl_reg(regulator_id);
ret = d2041_reg_read(d2041, reg_num, ®_val);
if(ret < 0) {
dlg_err("I2C read error. \n");
return ret;
}
/* 0x0 : Off * 0x1 : On * 0x2 : Sleep * 0x3 : n/a */
ret = ((reg_val & (D2041_REGULATOR_MCTL1|D2041_REGULATOR_MCTL3)) >= 1) ? 1 : 0;
}
return ret;
}