static int wm8350_wdt_set_timeout(struct watchdog_device *wdt_dev,
unsigned int timeout)
{
struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev);
int ret, i;
u16 reg;
for (i = 0; i < ARRAY_SIZE(wm8350_wdt_cfgs); i++)
if (wm8350_wdt_cfgs[i].time == timeout)
break;
if (i == ARRAY_SIZE(wm8350_wdt_cfgs))
return -EINVAL;
mutex_lock(&wdt_mutex);
wm8350_reg_unlock(wm8350);
reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2);
reg &= ~WM8350_WDOG_TO_MASK;
reg |= wm8350_wdt_cfgs[i].val;
ret = wm8350_reg_write(wm8350, WM8350_SYSTEM_CONTROL_2, reg);
wm8350_reg_lock(wm8350);
mutex_unlock(&wdt_mutex);
wdt_dev->timeout = timeout;
return ret;
}
static __devinit int wm8350_power_probe(struct platform_device *pdev)
{
struct wm8350 *wm8350 = platform_get_drvdata(pdev);
struct wm8350_power *power = &wm8350->power;
struct wm8350_charger_policy *policy = power->policy;
struct power_supply *usb = &power->usb;
struct power_supply *battery = &power->battery;
struct power_supply *ac = &power->ac;
int ret;
ac->name = "wm8350-ac";
ac->type = POWER_SUPPLY_TYPE_MAINS;
ac->properties = wm8350_ac_props;
ac->num_properties = ARRAY_SIZE(wm8350_ac_props);
ac->get_property = wm8350_ac_get_prop;
ret = power_supply_register(&pdev->dev, ac);
if (ret)
return ret;
battery->name = "wm8350-battery";
battery->properties = wm8350_bat_props;
battery->num_properties = ARRAY_SIZE(wm8350_bat_props);
battery->get_property = wm8350_bat_get_property;
battery->use_for_apm = 1;
ret = power_supply_register(&pdev->dev, battery);
if (ret)
goto battery_failed;
usb->name = "wm8350-usb",
usb->type = POWER_SUPPLY_TYPE_USB;
usb->properties = wm8350_usb_props;
usb->num_properties = ARRAY_SIZE(wm8350_usb_props);
usb->get_property = wm8350_usb_get_prop;
ret = power_supply_register(&pdev->dev, usb);
if (ret)
goto usb_failed;
ret = device_create_file(&pdev->dev, &dev_attr_charger_state);
if (ret < 0)
dev_warn(wm8350->dev, "failed to add charge sysfs: %d\n", ret);
ret = 0;
wm8350_init_charger(wm8350);
if (wm8350_charger_config(wm8350, policy) == 0) {
wm8350_reg_unlock(wm8350);
wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CHG_ENA);
wm8350_reg_lock(wm8350);
}
return ret;
usb_failed:
power_supply_unregister(battery);
battery_failed:
power_supply_unregister(ac);
return ret;
}
static irqreturn_t wm8350_charger_handler(int irq, void *data)
{
struct wm8350 *wm8350 = data;
struct wm8350_power *power = &wm8350->power;
struct wm8350_charger_policy *policy = power->policy;
switch (irq - wm8350->irq_base) {
case WM8350_IRQ_CHG_BAT_FAIL:
dev_err(wm8350->dev, "battery failed\n");
break;
case WM8350_IRQ_CHG_TO:
dev_err(wm8350->dev, "charger timeout\n");
power_supply_changed(&power->battery);
break;
case WM8350_IRQ_CHG_BAT_HOT:
case WM8350_IRQ_CHG_BAT_COLD:
case WM8350_IRQ_CHG_START:
case WM8350_IRQ_CHG_END:
power_supply_changed(&power->battery);
break;
case WM8350_IRQ_CHG_FAST_RDY:
dev_dbg(wm8350->dev, "fast charger ready\n");
wm8350_charger_config(wm8350, policy);
wm8350_reg_unlock(wm8350);
wm8350_set_bits(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1,
WM8350_CHG_FAST);
wm8350_reg_lock(wm8350);
break;
case WM8350_IRQ_CHG_VBATT_LT_3P9:
dev_warn(wm8350->dev, "battery < 3.9V\n");
break;
case WM8350_IRQ_CHG_VBATT_LT_3P1:
dev_warn(wm8350->dev, "battery < 3.1V\n");
break;
case WM8350_IRQ_CHG_VBATT_LT_2P85:
dev_warn(wm8350->dev, "battery < 2.85V\n");
break;
/* Supply change. We will overnotify but it should do
* no harm. */
case WM8350_IRQ_EXT_USB_FB:
case WM8350_IRQ_EXT_WALL_FB:
wm8350_charger_config(wm8350, policy);
case WM8350_IRQ_EXT_BAT_FB: /* Fall through */
power_supply_changed(&power->battery);
power_supply_changed(&power->usb);
power_supply_changed(&power->ac);
break;
default:
dev_err(wm8350->dev, "Unknown interrupt %d\n", irq);
}
return IRQ_HANDLED;
}
static void wm8350_charger_handler(struct wm8350 *wm8350, int irq, void *data)
{
struct wm8350_power *power = &wm8350->power;
struct wm8350_charger_policy *policy = power->policy;
switch (irq) {
case WM8350_IRQ_CHG_BAT_FAIL:
dev_err(wm8350->dev, "battery failed\n");
break;
case WM8350_IRQ_CHG_TO:
dev_err(wm8350->dev, "charger timeout\n");
power_supply_changed(&power->battery);
break;
case WM8350_IRQ_CHG_BAT_HOT:
case WM8350_IRQ_CHG_BAT_COLD:
case WM8350_IRQ_CHG_START:
case WM8350_IRQ_CHG_END:
power_supply_changed(&power->battery);
break;
case WM8350_IRQ_CHG_FAST_RDY:
dev_dbg(wm8350->dev, "fast charger ready\n");
wm8350_charger_config(wm8350, policy);
wm8350_reg_unlock(wm8350);
wm8350_set_bits(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1,
WM8350_CHG_FAST);
wm8350_reg_lock(wm8350);
break;
case WM8350_IRQ_CHG_VBATT_LT_3P9:
dev_warn(wm8350->dev, "battery < 3.9V\n");
break;
case WM8350_IRQ_CHG_VBATT_LT_3P1:
dev_warn(wm8350->dev, "battery < 3.1V\n");
break;
case WM8350_IRQ_CHG_VBATT_LT_2P85:
dev_warn(wm8350->dev, "battery < 2.85V\n");
break;
case WM8350_IRQ_EXT_USB_FB:
case WM8350_IRQ_EXT_WALL_FB:
wm8350_charger_config(wm8350, policy);
case WM8350_IRQ_EXT_BAT_FB:
power_supply_changed(&power->battery);
power_supply_changed(&power->usb);
power_supply_changed(&power->ac);
break;
default:
dev_err(wm8350->dev, "Unknown interrupt %d\n", irq);
}
}
static int wm8350_charger_config(struct wm8350 *wm8350,
struct wm8350_charger_policy *policy)
{
u16 reg, eoc_mA, fast_limit_mA;
if (!policy) {
dev_warn(wm8350->dev,
"No charger policy, charger not configured.\n");
return -EINVAL;
}
/* make sure USB fast charge current is not > 500mA */
if (policy->fast_limit_USB_mA > 500) {
dev_err(wm8350->dev, "USB fast charge > 500mA\n");
return -EINVAL;
}
eoc_mA = WM8350_CHG_EOC_mA(policy->eoc_mA);
wm8350_reg_unlock(wm8350);
reg = wm8350_reg_read(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1)
& WM8350_CHG_ENA_R168;
wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_1,
reg | eoc_mA | policy->trickle_start_mV |
WM8350_CHG_TRICKLE_TEMP_CHOKE |
WM8350_CHG_TRICKLE_USB_CHOKE |
WM8350_CHG_FAST_USB_THROTTLE);
if (wm8350_get_supplies(wm8350) & WM8350_USB_SUPPLY) {
fast_limit_mA =
WM8350_CHG_FAST_LIMIT_mA(policy->fast_limit_USB_mA);
wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2,
policy->charge_mV | policy->trickle_charge_USB_mA |
fast_limit_mA | wm8350_charge_time_min(wm8350,
policy->charge_timeout));
} else {
fast_limit_mA =
WM8350_CHG_FAST_LIMIT_mA(policy->fast_limit_mA);
wm8350_reg_write(wm8350, WM8350_BATTERY_CHARGER_CONTROL_2,
policy->charge_mV | policy->trickle_charge_mA |
fast_limit_mA | wm8350_charge_time_min(wm8350,
policy->charge_timeout));
}
wm8350_reg_lock(wm8350);
return 0;
}
static int gpio_set_dir(struct wm8350 *wm8350, int gpio, int dir)
{
int ret;
wm8350_reg_unlock(wm8350);
if (dir == WM8350_GPIO_DIR_OUT)
ret = wm8350_clear_bits(wm8350,
WM8350_GPIO_CONFIGURATION_I_O,
1 << gpio);
else
ret = wm8350_set_bits(wm8350,
WM8350_GPIO_CONFIGURATION_I_O,
1 << gpio);
wm8350_reg_lock(wm8350);
return ret;
}
static int wm8350_wdt_stop(struct wm8350 *wm8350)
{
int ret;
u16 reg;
mutex_lock(&wdt_mutex);
wm8350_reg_unlock(wm8350);
reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2);
reg &= ~WM8350_WDOG_MODE_MASK;
ret = wm8350_reg_write(wm8350, WM8350_SYSTEM_CONTROL_2, reg);
wm8350_reg_lock(wm8350);
mutex_unlock(&wdt_mutex);
return ret;
}
static int wm8350_wdt_set_timeout(struct wm8350 *wm8350, u16 value)
{
int ret;
u16 reg;
mutex_lock(&wdt_mutex);
wm8350_reg_unlock(wm8350);
reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2);
reg &= ~WM8350_WDOG_TO_MASK;
reg |= value;
ret = wm8350_reg_write(wm8350, WM8350_SYSTEM_CONTROL_2, reg);
wm8350_reg_lock(wm8350);
mutex_unlock(&wdt_mutex);
return ret;
}
static int wm8350_wdt_stop(struct watchdog_device *wdt_dev)
{
struct wm8350 *wm8350 = watchdog_get_drvdata(wdt_dev);
int ret;
u16 reg;
mutex_lock(&wdt_mutex);
wm8350_reg_unlock(wm8350);
reg = wm8350_reg_read(wm8350, WM8350_SYSTEM_CONTROL_2);
reg &= ~WM8350_WDOG_MODE_MASK;
ret = wm8350_reg_write(wm8350, WM8350_SYSTEM_CONTROL_2, reg);
wm8350_reg_lock(wm8350);
mutex_unlock(&wdt_mutex);
return ret;
}
//static int wm8350_init(struct wm8350 *wm8350)
int wm8350_dev_init(struct wm8350 *wm8350)
{
int i, ret;
u16 data;
#if 0
/* dont assert RTS when hibernating */
wm8350_set_bits(wm8350, WM8350_SYSTEM_HIBERNATE, WM8350_RST_HIB_MODE);
#endif
wm8350_reg_unlock(wm8350);
wm8350_set_bits(wm8350, WM8350_SYSTEM_CONTROL_1, WM8350_IRQ_POL);
wm8350_reg_lock(wm8350);
s3c2410_gpio_pullup(S3C2410_GPF1, 0);
s3c2410_gpio_cfgpin(S3C2410_GPF1, S3C2410_GPF1_EINT1);
// set_irq_type(IRQ_EINT1, IRQT_BOTHEDGE);
s3c2410_gpio_pullup(S3C2410_GPF2, 0);
s3c2410_gpio_cfgpin(S3C2410_GPF2, S3C2410_GPF2_EINT2);
/* Shutdown threshold value 3.1v off , 3.2v on */
wm8350_reg_unlock(wm8350);
data = wm8350_reg_read(wm8350, WM8350_POWER_CHECK_COMPARATOR)
& ~(WM8350_PCCMP_OFF_THR_MASK | WM8350_PCCMP_ON_THR_MASK);
wm8350_reg_write(wm8350, WM8350_POWER_CHECK_COMPARATOR, data | 0x23);
wm8350_reg_lock(wm8350);
data = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_2);
wm8350_reg_write(wm8350, WM8350_DIGITISER_CONTROL_2, data | WM8350_AUXADC_CAL);
config_s3c_wm8350_gpio(wm8350);
#if 0
/* Sw1 --> PWR_ON */
wm8350_register_irq(wm8350, WM8350_IRQ_WKUP_ONKEY,
imx32ads_switch_handler, NULL);
wm8350_unmask_irq(wm8350, WM8350_IRQ_WKUP_ONKEY);
#endif
#ifndef CONFIG_MACH_CANOPUS
for (i = 0; i < ARRAY_SIZE(wm8350_regulator_devices); i++) {
platform_set_drvdata(&wm8350_regulator_devices[i], wm8350);
ret = platform_device_register(&wm8350_regulator_devices[i]);
if (ret < 0)
goto unwind;
}
#else // CONFIG_MACH_CANOPUS
struct regulator_init_data *reg_data = NULL;
for (i = 0; i < ARRAY_SIZE(wm8350_regulator_devices); i++) {
if (wm8350_regulator_devices[i].id == WM8350_DCDC_4) {
// for LCD
if (q_hw_ver(7800_ES2)
|| q_hw_ver(7800_TP)
|| q_hw_ver(7800_MP)) {
reg_data = (struct regulator_init_data *)wm8350_regulator_devices[i].dev.platform_data;
reg_data->constraints.min_uV = 3400000;
reg_data->constraints.max_uV = 3400000;
reg_data->constraints.state_mem.uV = 3400000;
}
} else if (wm8350_regulator_devices[i].id == WM8350_LDO_3) {
// for PMIC LDO
if (q_hw_ver(SWP2000)
|| q_hw_ver(7800_MP2)
|| q_hw_ver(KTQOOK_TP2)
|| q_hw_ver(KTQOOK_MP)
|| q_hw_ver(SKATM)) {
reg_data = (struct regulator_init_data *)wm8350_regulator_devices[i].dev.platform_data;
reg_data->constraints.min_uV = 1200000;
reg_data->constraints.max_uV = 1200000;
reg_data->num_consumer_supplies = ARRAY_SIZE(ldo4_consumers);
reg_data->consumer_supplies = ldo4_consumers;
}
} else if (wm8350_regulator_devices[i].id == WM8350_LDO_4) {
// for PMIC LDO
if (q_hw_ver(SWP2000)
|| q_hw_ver(7800_MP2)
|| q_hw_ver(KTQOOK_TP2)
|| q_hw_ver(KTQOOK_MP)
|| q_hw_ver(SKATM)) {
reg_data = (struct regulator_init_data *)wm8350_regulator_devices[i].dev.platform_data;
reg_data->constraints.min_uV = 3300000;
reg_data->constraints.max_uV = 3300000;
reg_data->num_consumer_supplies = ARRAY_SIZE(ldo3_consumers);
reg_data->consumer_supplies = ldo3_consumers;
}
}
platform_set_drvdata(&wm8350_regulator_devices[i], wm8350);
ret = platform_device_register(&wm8350_regulator_devices[i]);
if (ret < 0)
goto unwind;
}
#endif // CONFIG_MACH_CANOPUS
/* now register other clients */
return s3c_wm8350_device_register(wm8350);
unwind:
for (i--; i >= 0; i--)
platform_device_unregister(&wm8350_regulator_devices[i]);
return ret;
}
static int wm8350_rtc_probe(struct platform_device *pdev)
{
struct wm8350 *wm8350 = platform_get_drvdata(pdev);
struct wm8350_rtc *wm_rtc = &wm8350->rtc;
int ret = 0;
u16 timectl, power5;
timectl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL);
if (timectl & WM8350_RTC_BCD) {
dev_err(&pdev->dev, "RTC BCD mode not supported\n");
return -EINVAL;
}
if (timectl & WM8350_RTC_12HR) {
dev_err(&pdev->dev, "RTC 12 hour mode not supported\n");
return -EINVAL;
}
/* enable the RTC if it's not already enabled */
power5 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_5);
if (!(power5 & WM8350_RTC_TICK_ENA)) {
dev_info(wm8350->dev, "Starting RTC\n");
wm8350_reg_unlock(wm8350);
ret = wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5,
WM8350_RTC_TICK_ENA);
if (ret < 0) {
dev_err(&pdev->dev, "failed to enable RTC: %d\n", ret);
return ret;
}
wm8350_reg_lock(wm8350);
}
if (timectl & WM8350_RTC_STS) {
int retries;
ret = wm8350_clear_bits(wm8350, WM8350_RTC_TIME_CONTROL,
WM8350_RTC_SET);
if (ret < 0) {
dev_err(&pdev->dev, "failed to start: %d\n", ret);
return ret;
}
retries = WM8350_SET_TIME_RETRIES;
do {
timectl = wm8350_reg_read(wm8350,
WM8350_RTC_TIME_CONTROL);
} while (timectl & WM8350_RTC_STS && --retries);
if (retries == 0) {
dev_err(&pdev->dev, "failed to start: timeout\n");
return -ENODEV;
}
}
device_init_wakeup(&pdev->dev, 1);
wm_rtc->rtc = devm_rtc_device_register(&pdev->dev, "wm8350",
&wm8350_rtc_ops, THIS_MODULE);
if (IS_ERR(wm_rtc->rtc)) {
ret = PTR_ERR(wm_rtc->rtc);
dev_err(&pdev->dev, "failed to register RTC: %d\n", ret);
return ret;
}
wm8350_register_irq(wm8350, WM8350_IRQ_RTC_SEC,
wm8350_rtc_update_handler, 0,
"RTC Seconds", wm8350);
wm8350_mask_irq(wm8350, WM8350_IRQ_RTC_SEC);
wm8350_register_irq(wm8350, WM8350_IRQ_RTC_ALM,
wm8350_rtc_alarm_handler, 0,
"RTC Alarm", wm8350);
return 0;
}
static int gpio_set_func(struct wm8350 *wm8350, int gpio, int func)
{
u16 reg;
wm8350_reg_unlock(wm8350);
switch (gpio) {
case 0:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_1)
& ~WM8350_GP0_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_1,
reg | ((func & 0xf) << 0));
break;
case 1:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_1)
& ~WM8350_GP1_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_1,
reg | ((func & 0xf) << 4));
break;
case 2:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_1)
& ~WM8350_GP2_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_1,
reg | ((func & 0xf) << 8));
break;
case 3:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_1)
& ~WM8350_GP3_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_1,
reg | ((func & 0xf) << 12));
break;
case 4:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_2)
& ~WM8350_GP4_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_2,
reg | ((func & 0xf) << 0));
break;
case 5:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_2)
& ~WM8350_GP5_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_2,
reg | ((func & 0xf) << 4));
break;
case 6:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_2)
& ~WM8350_GP6_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_2,
reg | ((func & 0xf) << 8));
break;
case 7:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_2)
& ~WM8350_GP7_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_2,
reg | ((func & 0xf) << 12));
break;
case 8:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_3)
& ~WM8350_GP8_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_3,
reg | ((func & 0xf) << 0));
break;
case 9:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_3)
& ~WM8350_GP9_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_3,
reg | ((func & 0xf) << 4));
break;
case 10:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_3)
& ~WM8350_GP10_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_3,
reg | ((func & 0xf) << 8));
break;
case 11:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_3)
& ~WM8350_GP11_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_3,
reg | ((func & 0xf) << 12));
break;
case 12:
reg = wm8350_reg_read(wm8350, WM8350_GPIO_FUNCTION_SELECT_4)
& ~WM8350_GP12_FN_MASK;
wm8350_reg_write(wm8350, WM8350_GPIO_FUNCTION_SELECT_4,
reg | ((func & 0xf) << 0));
break;
default:
wm8350_reg_lock(wm8350);
return -EINVAL;
}
wm8350_reg_lock(wm8350);
return 0;
}
int wm8350_init(struct wm8350 *wm8350)
{
int ret = 0;
/* register regulator and set constraints */
wm8350_device_register_pmic(wm8350);
set_regulator_constraints(wm8350);
#ifdef NOT_PORTED_TO_IMX37
wm8350_device_register_rtc(wm8350);
wm8350_device_register_wdg(wm8350);
wm8350_device_register_power(wm8350);
#endif
mxc_init_wm8350();
/*Note: Needs to be moved into a regulator function. */
/* Configuring -- GPIO 7 pin */
if (wm8350_gpio_config(wm8350, 7, WM8350_GPIO_DIR_OUT, 0,
WM8350_GPIO_ACTIVE_LOW, WM8350_GPIO_PULL_NONE,
WM8350_GPIO_INVERT_OFF,
WM8350_GPIO_DEBOUNCE_OFF) == 0)
wm8350_gpio_set_status(wm8350, 7, 1);
else
printk(KERN_ERR "Error in setting Wolfson GPIO pin 7 \n");
/* enable gpio4:USB_VBUS_EN */
ret =
wm8350_gpio_config(wm8350, 4, WM8350_GPIO_DIR_IN,
WM8350_GPIO4_MR_IN, WM8350_GPIO_ACTIVE_HIGH,
WM8350_GPIO_PULL_UP, WM8350_GPIO_INVERT_OFF,
WM8350_GPIO_DEBOUNCE_OFF);
if (ret)
printk(KERN_ERR "Error in setting USB VBUS enable pin\n");
/*PMIC RDY*/
if (wm8350_gpio_config(wm8350, 9, WM8350_GPIO_DIR_OUT, WM8350_GPIO9_GPIO_OUT,
WM8350_GPIO_ACTIVE_LOW, WM8350_GPIO_PULL_NONE,
WM8350_GPIO_INVERT_OFF, WM8350_GPIO_DEBOUNCE_OFF) == 0)
wm8350_gpio_set_status(wm8350, 9, 1);
else
printk(KERN_ERR "Error in setting Wolfson GPIO pin 9 \n");
/* register sound */
printk("Registering imx37_snd_device");
imx_snd_device = platform_device_alloc("wm8350-imx-3stack-audio", -1);
if (!imx_snd_device) {
ret = -ENOMEM;
goto err;
}
imx_snd_device->dev.platform_data = &imx_3stack_audio_platform_data;
platform_set_drvdata(imx_snd_device, &wm8350->audio);
ret = platform_device_add(imx_snd_device);
if (ret)
goto snd_err;
/* set up PMIC IRQ (active high) to i.MX32ADS */
printk("Registering PMIC INT");
INIT_WORK(&wm8350->work, wm8350_irq_work);
wm8350_reg_unlock(wm8350);
wm8350_set_bits(wm8350, WM8350_SYSTEM_CONTROL_1, WM8350_IRQ_POL);
wm8350_reg_lock(wm8350);
set_irq_type(MXC_PMIC_INT_LINE, IRQT_RISING);
ret = request_irq(MXC_PMIC_INT_LINE, wm8350_irq_handler,
IRQF_DISABLED, "wm8350-pmic", wm8350);
if (ret != 0) {
printk(KERN_ERR "wm8350: cant request irq %d\n",
MXC_PMIC_INT_LINE);
goto err;
}
wm8350->nirq = MXC_PMIC_INT_LINE;
set_irq_wake(MXC_PMIC_INT_LINE, 1);
#ifdef NOT_PORTED_TO_IMX37
printk("Configuring WM8350 GPIOS");
config_gpios(wm8350);
config_hibernate(wm8350);
#endif
/* Sw1 --> PWR_ON */
printk("Registering and unmasking the WM8350 wakeup key\n");
wm8350_register_irq(wm8350, WM8350_IRQ_WKUP_ONKEY,
imx37_3stack_switch_handler, NULL);
wm8350_unmask_irq(wm8350, WM8350_IRQ_WKUP_ONKEY);
/* unmask all & clear sticky */
printk("Unmasking WM8350 local interrupts\n");
wm8350_reg_write(wm8350, WM8350_SYSTEM_INTERRUPTS_MASK, 0x3ffe);
schedule_work(&wm8350->work);
#if BATTERY
/* not much use without a battery atm */
wm8350_init_battery(wm8350);
#endif
printk("Exiting normally from wm8350_init()");
return ret;
snd_err:
platform_device_put(imx_snd_device);
err:
printk("wm8350_init() FAILED");
kfree(wm8350->reg_cache);
return ret;
}
