linux-toradex.git/kernel/time/alarmtimer.c, branch v3.6.4 Linux kernel for Apalis and Colibri modules alarmtimer: Provide accessor to alarmtimer rtc device 2012-04-20T21:56:36+00:00 John Stultz john.stultz@linaro.org 2012-04-20T19:31:45+00:00 57c498fa5df05e4bd410c101795368439fec7b4e The Android alarm interface provides a settime call that sets both the alarmtimer RTC device and CLOCK_REALTIME to the same value. Since there may be multiple rtc devices, provide a hook to access the one the alarmtimer infrastructure is using. CC: Colin Cross <ccross@android.com> CC: Thomas Gleixner <tglx@linutronix.de> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The Android alarm interface provides a settime call that sets both
the alarmtimer RTC device and CLOCK_REALTIME to the same value.

Since there may be multiple rtc devices, provide a hook to access the
one the alarmtimer infrastructure is using.

CC: Colin Cross <ccross@android.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Android Kernel Team <kernel-team@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
alarmtimer: Don't call rtc_timer_init() when CONFIG_RTC_CLASS=n 2012-03-24T11:46:23+00:00 Thomas Gleixner tglx@linutronix.de 2012-03-24T11:46:23+00:00 c5e14e763046b11dd8bf57b5dc9f3ab444af8e60 rtc_timer_init() is not available when CONFIG_RTC_CLASS=n. Provide a proper wrapper in the RTC section of alarmtimer.c Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> 
rtc_timer_init() is not available when CONFIG_RTC_CLASS=n. Provide a
proper wrapper in the RTC section of alarmtimer.c

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
alarmtimer: Make sure we initialize the rtctimer 2012-03-23T23:23:12+00:00 John Stultz john.stultz@linaro.org 2012-03-23T22:52:25+00:00 ad30dfa94c5cc23931c822922a50bd163ab293a5 jonghwan Choi reported seeing warnings with the alarmtimer code at suspend/resume time, and pointed out that the rtctimer isn't being properly initialized. This patch corrects this issue. Reported-by: jonghwan Choi <jhbird.choi@gmail.com> Signed-off-by: John Stultz <john.stultz@linaro.org> 
jonghwan Choi reported seeing warnings with the alarmtimer
code at suspend/resume time, and pointed out that the
rtctimer isn't being properly initialized.

This patch corrects this issue.

Reported-by: jonghwan Choi <jhbird.choi@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
alarmtimers: Fix time comparison 2011-12-06T10:38:32+00:00 Thomas Gleixner tglx@linutronix.de 2011-12-05T20:20:23+00:00 c9c024b3f3e07d087974db4c0dc46217fff3a6c0 The expiry function compares the timer against current time and does not expire the timer when the expiry time is >= now. That's wrong. If the timer is set for now, then it must expire. Make the condition expiry > now for breaking out the loop. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <john.stultz@linaro.org> Cc: stable@kernel.org 
The expiry function compares the timer against current time and does
not expire the timer when the expiry time is >= now. That's wrong. If
the timer is set for now, then it must expire.

Make the condition expiry > now for breaking out the loop.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: stable@kernel.org
alarmtimers: Fix error handling 2011-09-14T08:54:29+00:00 Thomas Gleixner tglx@linutronix.de 2011-09-14T08:54:29+00:00 4523f6ada86853750565c68e17126af2e3df9b8a commit 8bc0daf (alarmtimers: Rework RTC device selection using class interface) did not implement required error checks. Add them. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
commit 8bc0daf (alarmtimers: Rework RTC device selection using class
interface) did not implement required error checks. Add them.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
alarmtimers: Rework RTC device selection using class interface 2011-08-10T21:55:30+00:00 John Stultz john.stultz@linaro.org 2011-07-15T01:35:13+00:00 8bc0dafb5cf38a19484dfb16e2c6d29e85820046 This allows cleaner detection of the RTC device being registered, rather then probing any time someone calls alarmtimer_get_rtcdev. CC: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org> 
This allows cleaner detection of the RTC device being registered, rather
then probing any time someone calls alarmtimer_get_rtcdev.

CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
alarmtimers: Add try_to_cancel functionality 2011-08-10T21:55:29+00:00 John Stultz john.stultz@linaro.org 2011-08-10T19:41:36+00:00 9082c465a5403f4a98734193e078552991a2e283 There's a number of edge cases when cancelling a alarm, so to be sure we accurately do so, introduce try_to_cancel, which returns proper failure errors if it cannot. Also modify cancel to spin until the alarm is properly disabled. CC: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org> 
There's a number of edge cases when cancelling a alarm, so
to be sure we accurately do so, introduce try_to_cancel, which
returns proper failure errors if it cannot. Also modify cancel
to spin until the alarm is properly disabled.

CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
alarmtimers: Add more refined alarm state tracking 2011-08-10T21:55:27+00:00 John Stultz john.stultz@linaro.org 2011-08-10T19:30:21+00:00 a28cde81ab13cc251748a4c4ef06883dd09a10ea In order to allow for functionality like try_to_cancel, add more refined state tracking (similar to hrtimers). CC: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org> 
In order to allow for functionality like try_to_cancel, add
more refined  state tracking (similar to hrtimers).

CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
alarmtimers: Remove period from alarm structure 2011-08-10T21:55:26+00:00 John Stultz john.stultz@linaro.org 2011-08-10T19:09:24+00:00 9e26476243e438f4534a562660c1296a15a9e202 Now that periodic alarmtimers are managed by the handler function, remove the period value from the alarm structure and let the handlers manage the interval on their own. CC: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org> 
Now that periodic alarmtimers are managed by the handler function,
remove the period value from the alarm structure and let the handlers
manage the interval on their own.

CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
alarmtimers: Remove interval cap limit hack 2011-08-10T21:55:24+00:00 John Stultz john.stultz@linaro.org 2011-08-10T18:40:23+00:00 d77e23accec56bf2ba12187fe77a2f500a511282 Now that the alarmtimers code has been refactored, the interval cap limit can be removed. CC: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org> 
Now that the alarmtimers code has been refactored, the interval
cap limit can be removed.

CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>