static int da9055_set_alarm(struct da9055 *da9055, struct rtc_time *rtc_tm)
{
int ret;
uint8_t v[2];
rtc_tm->tm_year -= 100;
rtc_tm->tm_mon += 1;
ret = da9055_reg_update(da9055, DA9055_REG_ALARM_MI,
DA9055_RTC_ALM_MIN, rtc_tm->tm_min);
if (ret != 0) {
dev_err(da9055->dev, "Failed to write ALRM MIN: %d\n", ret);
return ret;
}
v[0] = rtc_tm->tm_hour;
v[1] = rtc_tm->tm_mday;
ret = da9055_group_write(da9055, DA9055_REG_ALARM_H, 2, v);
if (ret < 0)
return ret;
ret = da9055_reg_update(da9055, DA9055_REG_ALARM_MO,
DA9055_RTC_ALM_MONTH, rtc_tm->tm_mon);
if (ret < 0)
dev_err(da9055->dev, "Failed to write ALM Month:%d\n", ret);
ret = da9055_reg_update(da9055, DA9055_REG_ALARM_Y,
DA9055_RTC_ALM_YEAR, rtc_tm->tm_year);
if (ret < 0)
dev_err(da9055->dev, "Failed to write ALM Year:%d\n", ret);
return ret;
}
static int da9055_wdt_set_timeout(struct watchdog_device *wdt_dev,
unsigned int timeout)
{
struct da9055_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
struct da9055 *da9055 = driver_data->da9055;
int ret, i;
for (i = 0; i < ARRAY_SIZE(da9055_wdt_maps); i++)
if (da9055_wdt_maps[i].user_time == timeout)
break;
if (i == ARRAY_SIZE(da9055_wdt_maps))
ret = -EINVAL;
else
ret = da9055_reg_update(da9055, DA9055_REG_CONTROL_B,
DA9055_TWDSCALE_MASK,
da9055_wdt_maps[i].reg_val <<
DA9055_TWDSCALE_SHIFT);
if (ret < 0) {
dev_err(da9055->dev,
"Failed to update timescale bit, %d\n", ret);
return ret;
}
wdt_dev->timeout = timeout;
return 0;
}
static int da9055_rtc_enable_alarm(struct da9055_rtc *rtc, bool enable)
{
int ret;
if (enable) {
ret = da9055_reg_update(rtc->da9055, DA9055_REG_ALARM_Y,
DA9055_RTC_ALM_EN,
DA9055_RTC_ALM_EN);
if (ret != 0)
dev_err(rtc->da9055->dev, "Failed to enable ALM: %d\n",
ret);
rtc->alarm_enable = 1;
} else {
ret = da9055_reg_update(rtc->da9055, DA9055_REG_ALARM_Y,
DA9055_RTC_ALM_EN, 0);
if (ret != 0)
dev_err(rtc->da9055->dev,
"Failed to disable ALM: %d\n", ret);
rtc->alarm_enable = 0;
}
return ret;
}
static int da9055_rtc_device_init(struct da9055 *da9055,
struct da9055_pdata *pdata)
{
int ret;
/* Enable RTC and the internal Crystal */
ret = da9055_reg_update(da9055, DA9055_REG_CONTROL_B,
DA9055_RTC_EN, DA9055_RTC_EN);
if (ret < 0)
return ret;
ret = da9055_reg_update(da9055, DA9055_REG_EN_32K,
DA9055_CRYSTAL_EN, DA9055_CRYSTAL_EN);
if (ret < 0)
return ret;
/* Enable RTC in Power Down mode */
ret = da9055_reg_update(da9055, DA9055_REG_CONTROL_B,
DA9055_RTC_MODE_PD, DA9055_RTC_MODE_PD);
if (ret < 0)
return ret;
/* Enable RTC in Reset mode */
if (pdata && pdata->reset_enable) {
ret = da9055_reg_update(da9055, DA9055_REG_CONTROL_B,
DA9055_RTC_MODE_SD,
DA9055_RTC_MODE_SD <<
DA9055_RTC_MODE_SD_SHIFT);
if (ret < 0)
return ret;
}
/* Disable the RTC TICK ALM */
ret = da9055_reg_update(da9055, DA9055_REG_ALARM_MO,
DA9055_RTC_TICK_WAKE_MASK, 0);
if (ret < 0)
return ret;
return 0;
}
static int da9055_wdt_ping(struct watchdog_device *wdt_dev)
{
struct da9055_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev);
struct da9055 *da9055 = driver_data->da9055;
/*
* We have a minimum time for watchdog window called TWDMIN. A write
* to the watchdog before this elapsed time will cause an error.
*/
mdelay(DA9055_TWDMIN);
/* Reset the watchdog timer */
return da9055_reg_update(da9055, DA9055_REG_CONTROL_E,
DA9055_WATCHDOG_MASK, 1);
}
