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rtc: isl12057: let the rtc core interpret the partial alarm 

The rtc chip doesn't support triggering on month and year. So just don't
assign the respective fields in .read_alarm and let the rtc core
interpret this accordingly.

Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Uwe Kleine-König 2016-06-28 10:43:46 +02:00 committed by Alexandre Belloni
parent 56d86a7e79
commit bea9db3d16
1 changed files with 1 additions and 32 deletions
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33
drivers/rtc/rtc-isl12057.c
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@ -245,8 +245,7 @@ static int isl12057_rtc_update_alarm(struct device *dev, int enable)
static int isl12057_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
{
struct isl12057_rtc_data *data = dev_get_drvdata(dev);
struct rtc_time rtc_tm, *alarm_tm = &alarm->time;
unsigned long rtc_secs, alarm_secs;
struct rtc_time *alarm_tm = &alarm->time;
u8 regs[ISL12057_A1_SEC_LEN];
unsigned int ir;
int ret;
@ -264,36 +263,6 @@ static int isl12057_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm)
alarm_tm->tm_min = bcd2bin(regs[1] & 0x7f);
alarm_tm->tm_hour = bcd2bin(regs[2] & 0x3f);
alarm_tm->tm_mday = bcd2bin(regs[3] & 0x3f);
alarm_tm->tm_wday = -1;
/*
* The alarm section does not store year/month. We use the ones in rtc
* section as a basis and increment month and then year if needed to get
* alarm after current time.
*/
ret = _isl12057_rtc_read_time(dev, &rtc_tm);
if (ret)
goto err_unlock;
alarm_tm->tm_year = rtc_tm.tm_year;
alarm_tm->tm_mon = rtc_tm.tm_mon;
ret = rtc_tm_to_time(&rtc_tm, &rtc_secs);
if (ret)
goto err_unlock;
ret = rtc_tm_to_time(alarm_tm, &alarm_secs);
if (ret)
goto err_unlock;
if (alarm_secs < rtc_secs) {
if (alarm_tm->tm_mon == 11) {
alarm_tm->tm_mon = 0;
alarm_tm->tm_year += 1;
} else {
alarm_tm->tm_mon += 1;
}
}
ret = regmap_read(data->regmap, ISL12057_REG_INT, &ir);
if (ret) {