diff options
Diffstat (limited to 'drivers/rtc/rtc-pcf8563.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf8563.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c index 0ba7e59929be..8bba022be946 100644 --- a/drivers/rtc/rtc-pcf8563.c +++ b/drivers/rtc/rtc-pcf8563.c @@ -22,7 +22,7 @@ #include <linux/of.h> #include <linux/err.h> -#define DRV_VERSION "0.4.3" +#define DRV_VERSION "0.4.4" #define PCF8563_REG_ST1 0x00 /* status */ #define PCF8563_REG_ST2 0x01 @@ -202,8 +202,9 @@ static int pcf8563_get_datetime(struct i2c_client *client, struct rtc_time *tm) if (buf[PCF8563_REG_SC] & PCF8563_SC_LV) { pcf8563->voltage_low = 1; - dev_info(&client->dev, + dev_err(&client->dev, "low voltage detected, date/time is not reliable.\n"); + return -EINVAL; } dev_dbg(&client->dev, @@ -234,12 +235,6 @@ static int pcf8563_get_datetime(struct i2c_client *client, struct rtc_time *tm) tm->tm_sec, tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday); - /* the clock can give out invalid datetime, but we cannot return - * -EINVAL otherwise hwclock will refuse to set the time on bootup. - */ - if (rtc_valid_tm(tm) < 0) - dev_err(&client->dev, "retrieved date/time is not valid.\n"); - return 0; } @@ -363,13 +358,13 @@ static int pcf8563_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *tm) struct i2c_client *client = to_i2c_client(dev); unsigned char buf[4]; int err; - unsigned long alarm_time; /* The alarm has no seconds, round up to nearest minute */ if (tm->time.tm_sec) { - rtc_tm_to_time(&tm->time, &alarm_time); - alarm_time += 60-tm->time.tm_sec; - rtc_time_to_tm(alarm_time, &tm->time); + time64_t alarm_time = rtc_tm_to_time64(&tm->time); + + alarm_time += 60 - tm->time.tm_sec; + rtc_time64_to_tm(alarm_time, &tm->time); } dev_dbg(dev, "%s, min=%d hour=%d wday=%d mday=%d " @@ -437,7 +432,7 @@ static int pcf8563_probe(struct i2c_client *client, } err = pcf8563_get_alarm_mode(client, NULL, &alm_pending); - if (err < 0) { + if (err) { dev_err(&client->dev, "%s: read error\n", __func__); return err; } |