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* rtc-lib: drop unused rtc_ydaysAntony Pavlov2017-05-111-7/+0
| | | | | | | | | | | The patch fixes this compiler's warning: drivers/rtc/rtc-lib.c:23:29: warning: ‘rtc_ydays’ defined but not used [-Wunused-const-variable=] static const unsigned short rtc_ydays[2][13] = { ^~~~~~~~~ Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* rtc-lib: Check tm_wday for validity in rtc_valid_tm()Andrey Smirnov2016-01-071-0/+2
| | | | | | | | | | | | | | RTC drivers rely on rtc_valid_tm() in order to make sure that no bogus values from uninitialized HW registers get passed to the uppper layers. A somewhat contrived way to reproduce this problem with DS1307 RTC would be to do the following: > i2c_write -b <bus> -a <addr> -r 3 0x00 > hwclock Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* rtc-lib: import rtc_time_to_tm() from linux-3.15Antony Pavlov2014-08-021-0/+45
| | | | | Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add a simple rtc frameworkAntony Pavlov2014-07-311-0/+68
This patch adds a simple rtc framework for reading and setting board's RTC time. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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