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rtc: s35390a: fix rtc alarm wake up problem if time < 60s

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Signed-off-by: Luo Wei <lw@rock-chips.com>
Change-Id: I946fd0742405b0b0fb6261231f41a53e3aacd9cb
This commit is contained in:
Luo Wei
2024-04-30 16:13:49 +08:00
committed by Tao Huang
parent 58ff74d9cf
commit 2239994fc3
1 changed files with 47 additions and 0 deletions
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47
drivers/rtc/rtc-s35390a.c
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@@ -278,9 +278,56 @@ static int s35390a_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
{
struct i2c_client *client = to_i2c_client(dev);
struct s35390a *s35390a = i2c_get_clientdata(client);
struct rtc_time *alm_tm = &alm->time;
char buf[3], sts = 0;
int err, i;
/*
* The alarm has no seconds so deal with it
*/
if (alm_tm->tm_sec) {
alm_tm->tm_sec = 0;
alm_tm->tm_min++;
if (alm_tm->tm_min >= 60) {
alm_tm->tm_min = 0;
alm_tm->tm_hour++;
if (alm_tm->tm_hour >= 24) {
alm_tm->tm_hour = 0;
alm_tm->tm_mday++;
alm_tm->tm_wday++;
if (alm_tm->tm_wday > 6)
alm_tm->tm_wday = 0;
switch (alm_tm->tm_mon + 1) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
if (alm_tm->tm_mday > 31)
alm_tm->tm_mday = 1;
break;
case 4:
case 6:
case 9:
case 11:
if (alm_tm->tm_mday > 30)
alm_tm->tm_mday = 1;
break;
case 2:
if (alm_tm->tm_year / 4 == 0) {
if (alm_tm->tm_mday > 29)
alm_tm->tm_mday = 1;
} else if (alm_tm->tm_mday > 28) {
alm_tm->tm_mday = 1;
}
break;
}
}
}
}
dev_dbg(&client->dev, "%s: alm is secs=%d, mins=%d, hours=%d mday=%d, "\
"mon=%d, year=%d, wday=%d\n", __func__, alm->time.tm_sec,
alm->time.tm_min, alm->time.tm_hour, alm->time.tm_mday,