Commit b139bb5c authored by Alexandre Belloni's avatar Alexandre Belloni
Browse files

rtc: pcf2127: let the core handle rtc range 

Let the core handle offsetting and windowing the RTC range.

Link: https://lore.kernel.org/r/20200505201310.255145-2-alexandre.belloni@bootlin.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 734e5e4e

drivers/rtc/rtc-pcf2127.c

+5 −3
Original line number Diff line number Diff line
@@ -137,8 +137,7 @@ static int pcf2127_rtc_read_time(struct device *dev, struct rtc_time *tm) 
	tm->tm_wday = buf[PCF2127_REG_DW] & 0x07;

	tm->tm_mon = bcd2bin(buf[PCF2127_REG_MO] & 0x1F) - 1; /* rtc mn 1-12 */

	tm->tm_year = bcd2bin(buf[PCF2127_REG_YR]);

	if (tm->tm_year < 70)

		tm->tm_year += 100;	/* assume we are in 1970...2069 */

	tm->tm_year += 100;



	dev_dbg(dev, "%s: tm is secs=%d, mins=%d, hours=%d, "

		"mday=%d, mon=%d, year=%d, wday=%d\n",
@@ -172,7 +171,7 @@ static int pcf2127_rtc_set_time(struct device *dev, struct rtc_time *tm) 
	buf[i++] = bin2bcd(tm->tm_mon + 1);



	/* year */

	buf[i++] = bin2bcd(tm->tm_year % 100);

	buf[i++] = bin2bcd(tm->tm_year - 100);



	/* write register's data */

	err = regmap_bulk_write(pcf2127->regmap, PCF2127_REG_SC, buf, i);
@@ -433,6 +432,9 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, 
		return PTR_ERR(pcf2127->rtc);



	pcf2127->rtc->ops = &pcf2127_rtc_ops;

	pcf2127->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;

	pcf2127->rtc->range_max = RTC_TIMESTAMP_END_2099;

	pcf2127->rtc->set_start_time = true; /* Sets actual start to 1970 */



	pcf2127->wdd.parent = dev;

	pcf2127->wdd.info = &pcf2127_wdt_info;