user/sven/linux.git/include/linux/rtc.h, branch v4.9.147

rtc: Add functions to set and read rtc offset

2016-03-14T16:08:15Z

A number of rtc devices, such as the NXP pcf2123 include a facility to adjust the clock in order to compensate for temperature or a crystal, capacitor, etc, that results in the rtc clock not running at exactly 32.768 kHz. Data sheets I have seen refer to this as a clock offset, and measure it in parts per million, however they often reference ppm to 2 digits of precision, which makes integer ppm less than ideal. We use parts per billion, which more than covers the precision needed and works nicely within 32 bits Signed-off-by: Joshua Clayton Signed-off-by: Alexandre Belloni

rtc: interface: Remove rtc_set_mmss()

2015-06-24T23:13:43Z

Now rtc_set_mmss() has no users, just remove it. We still have rtc_set_time() doing similar things. Signed-off-by: Xunlei Pang Signed-off-by: Alexandre Belloni

rtc: Introduce rtc_tm_sub() helper function

2015-06-24T23:13:41Z

There're many sites need comparing the two rtc_time variants for many rtc drivers, especially in the instances of rtc_class_ops::set_alarm(). So add this common helper function to make things easy. Suggested-by: Arnd Bergmann Signed-off-by: Xunlei Pang Signed-off-by: Alexandre Belloni

rtc: interface: Remove unused return value from rtc_timer_cancel()

2015-06-19T18:03:20Z

The rtc_timer_cancel() always returns 0 and cannot fail (calls only other void-returning functions). Signed-off-by: Krzysztof Kozlowski Signed-off-by: Alexandre Belloni

rtc: interface: Fix coding style violations

2015-06-19T18:03:20Z

Fix issues reported by checkpatch: ERROR: open brace '{' following struct go on the same line ERROR: "foo* bar" should be "foo *bar" Additionally adjust alignment of wrapped function arguments. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Alexandre Belloni

drivers/rtc: Provide y2038 safe rtc_class_ops.set_mmss() replacement

2015-04-03T06:18:24Z

Currently the rtc_class_op's set_mmss() function takes a 32-bit second value (on 32-bit systems), which is problematic for dates past y2038. This patch provides a safe version named set_mmss64() using y2038 safe time64_t. After this patch, set_mmss() is deprecated and all its users will be fixed to use set_mmss64(), it can be removed when having no users. Signed-off-by: Xunlei Pang [jstultz: Add whitespace fix for checkpatch] Signed-off-by: John Stultz Acked-by: Alessandro Zummo Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1427945681-29972-8-git-send-email-john.stultz@linaro.org Signed-off-by: Ingo Molnar

rtc: Convert rtc_set_ntp_time() to use timespec64

2015-01-24T01:21:57Z

rtc_set_ntp_time() uses timespec which is y2038-unsafe, so modify to use timespec64 which is y2038-safe, then replace rtc_time_to_tm() with rtc_time64_to_tm(). Also adjust all its call sites(only NTP uses it) accordingly. Cc: pang.xunlei Cc: Arnd Bergmann Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Xunlei Pang Signed-off-by: John Stultz

rtc/lib: Provide y2038 safe rtc_tm_to_time()/rtc_time_to_tm() replacement

2014-11-21T20:00:00Z

As part of addressing "y2038 problem" for in-kernel uses, this patch adds safe rtc_tm_to_time64()/rtc_time64_to_tm() respectively using time64_t. After this patch, rtc_tm_to_time() is deprecated and all its call sites will be fixed using corresponding safe versions, it can be removed when having no users. Also change rtc_tm_to_time64() to return time64_t directly instead of just as a parameter like rtc_tm_to_time() does. After this patch, rtc_time_to_tm() is deprecated and all its call sites will be fixed using corresponding safe versions, it can be removed when having no users. In addition, change rtc_tm_to_ktime() and rtc_ktime_to_tm() to use the safe version in passing. Signed-off-by: pang.xunlei Signed-off-by: John Stultz

drivers/rtc/class.c: use struct device as the first argument for devm_rtc_device_register()

2013-04-30T01:28:22Z

Other devm_* APIs use 'struct device *dev' as the first argument. Thus, in order to sync with other devm_* functions, struct device is used as the first argument for devm_rtc_device_register(). Signed-off-by: Jingoo Han Cc: Tejun Heo Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: add devm_rtc_device_{register,unregister}()

2013-04-30T01:28:21Z

These functions allow the driver core to automatically clean up any allocation made by rtc drivers. Thus it simplifies the error paths. Signed-off-by: Jingoo Han Acked-by: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds