linux/drivers/rtc/rtc-pcf8563.c, branch v4.5

rtc: pcf8563: add CLKOUT to common clock framework

2015-11-08T13:12:29Z

Add the clkout output clk to the common clock framework. Disable the CLKOUT of the RTC after power-up. After power-up/reset of the RTC, CLKOUT is enabled by default, with CLKOUT enabled the RTC chip has 2-3 times higher power consumption. Signed-off-by: Heiko Schocher Signed-off-by: Alexandre Belloni

rtc: Drop owner assignment from i2c_driver

2015-09-05T11:19:06Z

i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Alexandre Belloni

rtc: pfc8563: fix uninitialized variable warning

2015-06-24T23:13:46Z

Gcc is unable to prove that alm_pending is always initialized when it is used, so it prints a harmless warning: drivers/rtc/rtc-pcf8563.c: In function 'pcf8563_probe': drivers/rtc/rtc-pcf8563.c:449:5: warning: 'alm_pending' may be used uninitialized in this function [-Wmaybe-uninitialized] This uses the same conditional expression that is used inside of the pcf8563_get_alarm_mode() function, to help gcc figure it out and shut up that warning, and make the ARM defconfigs build again with no warnings. Signed-off-by: Arnd Bergmann Fixes: a45d528aab8b ("rtc: pcf8563: clear expired alarm at boot time") Signed-off-by: Alexandre Belloni

rtc: pcf8563: Replace deprecated rtc_time_to_tm() and rtc_tm_to_time()

2015-06-24T23:13:41Z

pcf8563_rtc_set_alarm() uses deprecated rtc_tm_to_time() and rtc_time_to_tm(), which will overflow in year 2106 on 32-bit machines. This patch solves this by: - Replacing rtc_time_to_tm() with rtc_time64_to_tm() - Replacing rtc_tm_to_time() with rtc_tm_to_time64() Acked-by: Arnd Bergmann Signed-off-by: Xunlei Pang Signed-off-by: Alexandre Belloni

rtc: pcf8563 fix: return -EINVAL if we read an invalid time.

2015-06-24T23:13:40Z

Return -EINVAL if the voltage low bit is set to avoid getting a bogus time at boot. There was a comment stating that util-linux hwclock refuses to set a new time if we return an error code on read, but at least the current version do set the time as expected. Remove the comment and the check for valid time, and let the rtc core check it for us. Signed-off-by: Jan Kardell Signed-off-by: Alexandre Belloni

drivers/rtc/rtc-pcf8563.c: simplify return from function

2015-04-17T13:03:59Z

This commit does not change any logic here. It just makes the code easier to read. This is how it looked like: If err != 0 return err; else return 0; Signed-off-by: Robert Kmiec Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: pcf8563: clear expired alarm at boot time

2014-12-11T01:41:15Z

In case the card is woken up of the rtc alarm, the devm_rtc_device_register function detects it as a pending alarm about a month in the future. Fix this by clearing the alarm in module probe. Signed-off-by: Jan Kardell Cc: Alessandro Zummo Cc: Grant Likely Cc: Rob Herring Cc: Vincent Donnefort Cc: Dan Carpenter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: pcf8563: save battery power

2014-12-11T01:41:15Z

According to Haoyu hym8563 datasheet this saves som power. Might be importat to battery life. And maybe it works for the NXP part as well. Signed-off-by: Jan Kardell Cc: Alessandro Zummo Cc: Grant Likely Cc: Rob Herring Cc: Vincent Donnefort Cc: Dan Carpenter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: pcf8563: handle consequeces of lacking second alarm reg

2014-12-11T01:41:15Z

To guarantee that a set alarm occurs in the future, the set alarm time is rounded up to the nearest minute. Also we cannot handle UIE as it requires second precision. Signed-off-by: Jan Kardell Cc: Alessandro Zummo Cc: Grant Likely Cc: Rob Herring Cc: Vincent Donnefort Cc: Dan Carpenter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: pcf8563: fix wrong time from read_alarm

2014-12-11T01:41:15Z

Incorrect mask was used for hour and monthday fields. Signed-off-by: Jan Kardell Cc: Alessandro Zummo Cc: Grant Likely Cc: Rob Herring Cc: Vincent Donnefort Cc: Dan Carpenter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds