static int mc34708_sw_get_normal_voltage(struct regulator_dev *reg)
{
unsigned int register_val = 0;
int voltage = 0, mV = 0;
int id = rdev_get_id(reg);
switch (id) {
case MC34708_SW1A:
CHECK_ERROR(pmic_read_reg(MC34708_REG_SW1AB,
®ister_val, PMIC_ALL_BITS));
voltage = BITFEXT(register_val, SW1A);
mV = bit_value_to_uv(voltage, SW1_MIN_UV, SW1_STEP_UV) / 1000;
break;
case MC34708_SW1B:
CHECK_ERROR(pmic_read_reg(MC34708_REG_SW1AB,
®ister_val, PMIC_ALL_BITS));
voltage = BITFEXT(register_val, SW1B);
mV = bit_value_to_uv(voltage, SW1_MIN_UV, SW1_STEP_UV) / 1000;
break;
case MC34708_SW2:
CHECK_ERROR(pmic_read_reg(MC34708_REG_SW2_3,
®ister_val, PMIC_ALL_BITS));
voltage = BITFEXT(register_val, SW2);
mV = bit_value_to_uv(voltage, SW2_MIN_UV, SW2_STEP_UV) / 1000;
break;
case MC34708_SW3:
CHECK_ERROR(pmic_read_reg(MC34708_REG_SW2_3,
®ister_val, PMIC_ALL_BITS));
voltage = BITFEXT(register_val, SW3);
mV = bit_value_to_mv(voltage, SW3_MIN_MV, SW3_STEP_MV);
break;
case MC34708_SW4A:
CHECK_ERROR(pmic_read_reg(MC34708_REG_SW4AB,
®ister_val, PMIC_ALL_BITS));
voltage = BITFEXT(register_val, SW4AHI);
if (voltage == 0) {
voltage = BITFEXT(register_val, SW4A);
mV = bit_value_to_mv(voltage, SW4_MIN_MV, SW4_STEP_MV);
} else if (voltage == 1)
mV = SW4_HI_2500_MV;
else if (voltage == 2)
mV = SW4_HI_3150_MV;
else
mV = SW4_HI_3300_MV;
break;
case MC34708_SW4B:
CHECK_ERROR(pmic_read_reg(MC34708_REG_SW4AB,
®ister_val, PMIC_ALL_BITS));
voltage = BITFEXT(register_val, SW4BHI);
if (voltage == 0) {
voltage = BITFEXT(register_val, SW4B);
mV = bit_value_to_mv(voltage, SW4_MIN_MV, SW4_STEP_MV);
} else if (voltage == 1)
mV = SW4_HI_2500_MV;
else if (voltage == 2)
mV = SW4_HI_3150_MV;
else
mV = SW4_HI_3300_MV;
break;
case MC34708_SW5:
CHECK_ERROR(pmic_read_reg(MC34708_REG_SW5,
®ister_val, PMIC_ALL_BITS));
voltage = BITFEXT(register_val, SW5);
mV = bit_value_to_mv(voltage, SW5_MIN_MV, SW5_STEP_MV);
break;
default:
break;
}
if (mV == 0)
return -EINVAL;
else
return mV * 1000;
}
/*!
* This function implements IOCTL controls on a PMIC device.
*
* @param inode pointer on the node
* @param file pointer on the file
* @param cmd the command
* @param arg the parameter
* @return This function returns 0 if successful.
*/
static int pmic_dev_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
register_info reg_info;
pmic_event_callback_t event_sub;
type_event event = EVENT_NB;
int ret = 0;
if (_IOC_TYPE(cmd) != 'P')
return -ENOTTY;
switch (cmd) {
case PMIC_READ_REG:
if (copy_from_user(®_info, (register_info *) arg,
sizeof(register_info))) {
return -EFAULT;
}
ret =
pmic_read_reg(reg_info.reg, &(reg_info.reg_value),
0x00ffffff);
pr_debug("read reg %d %x\n", reg_info.reg, reg_info.reg_value);
if (copy_to_user((register_info *) arg, ®_info,
sizeof(register_info))) {
return -EFAULT;
}
break;
case PMIC_WRITE_REG:
if (copy_from_user(®_info, (register_info *) arg,
sizeof(register_info))) {
return -EFAULT;
}
ret =
pmic_write_reg(reg_info.reg, reg_info.reg_value,
0x00ffffff);
pr_debug("write reg %d %x\n", reg_info.reg, reg_info.reg_value);
if (copy_to_user((register_info *) arg, ®_info,
sizeof(register_info))) {
return -EFAULT;
}
break;
case PMIC_SUBSCRIBE:
if (get_user(event, (int __user *)arg)) {
return -EFAULT;
}
event_sub.func = callbackfn;
event_sub.param = (void *)event;
ret = pmic_event_subscribe(event, event_sub);
pr_debug("subscribe done\n");
break;
case PMIC_UNSUBSCRIBE:
if (get_user(event, (int __user *)arg)) {
return -EFAULT;
}
event_sub.func = callbackfn;
event_sub.param = (void *)event;
ret = pmic_event_unsubscribe(event, event_sub);
pr_debug("unsubscribe done\n");
break;
case PMIC_NOTIFY_USER:
if (get_user(event, (int __user *)arg)) {
return -EFAULT;
}
event_sub.func = user_notify_callback;
event_sub.param = (void *)event;
ret = pmic_event_subscribe(event, event_sub);
break;
case PMIC_GET_NOTIFY:
down(&event_mutex);
if (CIRC_CNT(pmic_events.head, pmic_events.tail, CIRC_BUF_MAX)) {
event = (int)pmic_events.buf[pmic_events.tail];
pmic_events.tail = (pmic_events.tail + 1) & (CIRC_BUF_MAX - 1);
} else {
pr_info("No valid notified event\n");
}
up(&event_mutex);
if (put_user(event, (int __user *)arg)) {
return -EFAULT;
}
break;
default:
printk(KERN_ERR "%d unsupported ioctl command\n", (int)cmd);
return -EINVAL;
}
return ret;
}
static int mc13892_regulator_init(struct mc13892 *mc13892)
{
unsigned int value, register_mask;
printk("Initializing regulators for Babbage.\n");
if (mxc_cpu_is_rev(CHIP_REV_2_0) < 0)
sw2_init.constraints.state_mem.uV = 1100000;
else if (mxc_cpu_is_rev(CHIP_REV_2_0) == 1) {
sw2_init.constraints.state_mem.uV = 1250000;
sw1_init.constraints.state_mem.uV = 1000000;
}
/* enable standby controll for all regulators */
pmic_read_reg(REG_MODE_0, &value, 0xffffff);
value |= REG_MODE_0_ALL_MASK;
pmic_write_reg(REG_MODE_0, value, 0xffffff);
pmic_read_reg(REG_MODE_1, &value, 0xffffff);
value |= REG_MODE_1_ALL_MASK;
pmic_write_reg(REG_MODE_1, value, 0xffffff);
/* enable switch audo mode */
pmic_read_reg(REG_IDENTIFICATION, &value, 0xffffff);
/* only for mc13892 2.0A */
if ((value & 0x0000FFFF) == 0x45d0) {
pmic_read_reg(REG_SW_4, &value, 0xffffff);
register_mask = (SWMODE_MASK << SW1MODE_LSB) |
(SWMODE_MASK << SW2MODE_LSB);
value &= ~register_mask;
value |= (SWMODE_AUTO << SW1MODE_LSB) |
(SWMODE_AUTO << SW2MODE_LSB);
pmic_write_reg(REG_SW_4, value, 0xffffff);
pmic_read_reg(REG_SW_5, &value, 0xffffff);
register_mask = (SWMODE_MASK << SW3MODE_LSB) |
(SWMODE_MASK << SW4MODE_LSB);
value &= ~register_mask;
value |= (SWMODE_AUTO << SW3MODE_LSB) |
(SWMODE_AUTO << SW4MODE_LSB);
pmic_write_reg(REG_SW_5, value, 0xffffff);
}
/* Enable coin cell charger */
value = BITFVAL(COINCHEN, 1) | BITFVAL(VCOIN, VCOIN_3_0V);
register_mask = BITFMASK(COINCHEN) | BITFMASK(VCOIN);
pmic_write_reg(REG_POWER_CTL0, value, register_mask);
#if defined(CONFIG_RTC_DRV_MXC_V2) || defined(CONFIG_RTC_DRV_MXC_V2_MODULE)
value = BITFVAL(DRM, 1);
register_mask = BITFMASK(DRM);
pmic_write_reg(REG_POWER_CTL0, value, register_mask);
#endif
mc13892_register_regulator(mc13892, MC13892_SW1, &sw1_init);
mc13892_register_regulator(mc13892, MC13892_SW2, &sw2_init);
mc13892_register_regulator(mc13892, MC13892_SW3, &sw3_init);
mc13892_register_regulator(mc13892, MC13892_SW4, &sw4_init);
mc13892_register_regulator(mc13892, MC13892_SWBST, &swbst_init);
mc13892_register_regulator(mc13892, MC13892_VIOHI, &viohi_init);
mc13892_register_regulator(mc13892, MC13892_VPLL, &vpll_init);
mc13892_register_regulator(mc13892, MC13892_VDIG, &vdig_init);
mc13892_register_regulator(mc13892, MC13892_VSD, &vsd_init);
mc13892_register_regulator(mc13892, MC13892_VUSB2, &vusb2_init);
mc13892_register_regulator(mc13892, MC13892_VVIDEO, &vvideo_init);
mc13892_register_regulator(mc13892, MC13892_VAUDIO, &vaudio_init);
mc13892_register_regulator(mc13892, MC13892_VCAM, &vcam_init);
mc13892_register_regulator(mc13892, MC13892_VGEN1, &vgen1_init);
mc13892_register_regulator(mc13892, MC13892_VGEN2, &vgen2_init);
mc13892_register_regulator(mc13892, MC13892_VGEN3, &vgen3_init);
mc13892_register_regulator(mc13892, MC13892_VUSB, &vusb_init);
mc13892_register_regulator(mc13892, MC13892_GPO1, &gpo1_init);
mc13892_register_regulator(mc13892, MC13892_GPO2, &gpo2_init);
mc13892_register_regulator(mc13892, MC13892_GPO3, &gpo3_init);
mc13892_register_regulator(mc13892, MC13892_GPO4, &gpo4_init);
regulator_has_full_constraints();
return 0;
}
static int mc13892_charger_update_status(struct mc13892_dev_info *di)
{
int ret;
#ifndef CONFIG_MACH_MX51_ERDOS
unsigned int value;
#endif /* CONFIG_MACH_MX51_ERDOS */
int online;
#ifdef CONFIG_MACH_MX51_ERDOS
ret = pmic_get_dcinput_voltage ((unsigned short *)0);
if (ret == 0) {
online = 1;
} else if (ret == 1) {
online = 0;
} else {
online = di->charger_online; /* keep previous */
}
ret = 0;
/*
* Battery/DCinput update
*/
if (online == 1) {
gpio_battery_enable ( 0 );
} else if (online == 0) {
gpio_battery_enable ( 1 );
}
if (online != di->charger_online) {
di->charger_online = online;
/*
* check power_supply_register.
*/
if (di->charger.dev != 0) {
dev_info(di->charger.dev, "charger status: %s\n",
online ? "online" : "offline");
power_supply_changed(&di->charger);
} else {
printk ("mc13892_charger_update_status: charger status: %s\n",
online ? "online" : "offline");
}
}
#else
ret = pmic_read_reg(REG_INT_SENSE0, &value, BITFMASK(BIT_CHG_DETS));
if (ret == 0) {
online = BITFEXT(value, BIT_CHG_DETS);
if (online != di->charger_online) {
di->charger_online = online;
dev_info(di->charger.dev, "charger status: %s\n",
online ? "online" : "offline");
power_supply_changed(&di->charger);
cancel_delayed_work(&di->monitor_work);
queue_delayed_work(di->monitor_wqueue,
&di->monitor_work, HZ / 10);
if (online) {
pmic_start_coulomb_counter();
pmic_restart_charging();
} else
pmic_stop_coulomb_counter();
}
}
#endif /* CONFIG_MACH_MX51_ERDOS */
return ret;
}