<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux.git/drivers/rtc, branch v3.2-rc7</title>
<subtitle>Linux kernel source tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/'/>
<entry>
<title>Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</title>
<updated>2011-12-20T19:42:38+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2011-12-20T19:42:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=5fbd305dd2b661a243013cf444d2a32bfec2f701'/>
<id>5fbd305dd2b661a243013cf444d2a32bfec2f701</id>
<content type='text'>
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  time/clocksource: Fix kernel-doc warnings
  rtc: m41t80: Workaround broken alarm functionality
  rtc: Expire alarms after the time is set.
</content>
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<pre>
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  time/clocksource: Fix kernel-doc warnings
  rtc: m41t80: Workaround broken alarm functionality
  rtc: Expire alarms after the time is set.
</pre>
</div>
</content>
</entry>
<entry>
<title>rtc: m41t80: Workaround broken alarm functionality</title>
<updated>2011-12-13T20:26:24+00:00</updated>
<author>
<name>John Stultz</name>
<email>john.stultz@linaro.org</email>
</author>
<published>2011-12-12T21:57:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c3b79770e51ab1fd4201f3b54edf30113b9ce74f'/>
<id>c3b79770e51ab1fd4201f3b54edf30113b9ce74f</id>
<content type='text'>
The m41t80 driver can read and set the alarm, but it doesn't
seem to have a functional alarm irq.

This causes failures when the generic core sees alarm functions,
but then cannot use them properly for things like UIE mode.

Disabling the alarm functions allows proper error reporting,
and possible fallback to emulated modes. Once someone fixes
the alarm irq functionality, this can be restored.

CC: stable@kernel.org
CC: Matt Turner &lt;mattst88@gmail.com&gt;
CC: Nico Macrionitis &lt;acrux@cruxppc.org&gt;
CC: Atsushi Nemoto &lt;anemo@mba.ocn.ne.jp&gt;
Reported-by: Matt Turner &lt;mattst88@gmail.com&gt;
Reported-by: Nico Macrionitis &lt;acrux@cruxppc.org&gt;
Tested-by: Nico Macrionitis &lt;acrux@cruxppc.org&gt;
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The m41t80 driver can read and set the alarm, but it doesn't
seem to have a functional alarm irq.

This causes failures when the generic core sees alarm functions,
but then cannot use them properly for things like UIE mode.

Disabling the alarm functions allows proper error reporting,
and possible fallback to emulated modes. Once someone fixes
the alarm irq functionality, this can be restored.

CC: stable@kernel.org
CC: Matt Turner &lt;mattst88@gmail.com&gt;
CC: Nico Macrionitis &lt;acrux@cruxppc.org&gt;
CC: Atsushi Nemoto &lt;anemo@mba.ocn.ne.jp&gt;
Reported-by: Matt Turner &lt;mattst88@gmail.com&gt;
Reported-by: Nico Macrionitis &lt;acrux@cruxppc.org&gt;
Tested-by: Nico Macrionitis &lt;acrux@cruxppc.org&gt;
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rtc: Expire alarms after the time is set.</title>
<updated>2011-12-13T20:26:11+00:00</updated>
<author>
<name>NeilBrown</name>
<email>neilb@suse.de</email>
</author>
<published>2011-12-08T22:39:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=93b2ec0128c431148b216b8f7337c1a52131ef03'/>
<id>93b2ec0128c431148b216b8f7337c1a52131ef03</id>
<content type='text'>
If the alarm time programming in the rtc is ever in the past, it won't fire,
and any other alarm will be queued after it so they won't fire either.

So any time that the alarm might be in the past, we need to trigger
the irq handler to ensure the old alarm is cleared and the timer queue
is fully in the future.

This can happen:
 - when we first initialise the alarm
 - when we set the time in the rtc.

so follow both of these by scheduling the timer work function.

CC: stable@kernel.org
Signed-off-by: NeilBrown &lt;neilb@suse.de&gt;
[Also catch set_mmss case -jstultz]
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
If the alarm time programming in the rtc is ever in the past, it won't fire,
and any other alarm will be queued after it so they won't fire either.

So any time that the alarm might be in the past, we need to trigger
the irq handler to ensure the old alarm is cleared and the timer queue
is fully in the future.

This can happen:
 - when we first initialise the alarm
 - when we set the time in the rtc.

so follow both of these by scheduling the timer work function.

CC: stable@kernel.org
Signed-off-by: NeilBrown &lt;neilb@suse.de&gt;
[Also catch set_mmss case -jstultz]
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drivers/rtc/rtc-s3c.c: fix driver clock enable/disable balance issues</title>
<updated>2011-12-09T15:50:28+00:00</updated>
<author>
<name>Jonghwan Choi</name>
<email>jhbird.choi@samsung.com</email>
</author>
<published>2011-12-08T22:34:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=2dbcd05f1e9e0932833d16dab1696176fc164b07'/>
<id>2dbcd05f1e9e0932833d16dab1696176fc164b07</id>
<content type='text'>
If an error occurs after the clock is enabled, the enable/disable state
can become unbalanced.

Signed-off-by: Jonghwan Choi &lt;jhbird.choi@samsung.com&gt;
Cc: Alessandro Zummo &lt;a.zummo@towertech.it&gt;
Acked-by: Kukjin Kim &lt;kgene.kim@samsung.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
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<pre>
If an error occurs after the clock is enabled, the enable/disable state
can become unbalanced.

Signed-off-by: Jonghwan Choi &lt;jhbird.choi@samsung.com&gt;
Cc: Alessandro Zummo &lt;a.zummo@towertech.it&gt;
Acked-by: Kukjin Kim &lt;kgene.kim@samsung.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</title>
<updated>2011-12-06T00:53:43+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2011-12-06T00:53:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=40c043b077c6e377c8440d71563c055d0c4f0f0a'/>
<id>40c043b077c6e377c8440d71563c055d0c4f0f0a</id>
<content type='text'>
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clockevents: Set noop handler in clockevents_exchange_device()
  tick-broadcast: Stop active broadcast device when replacing it
  clocksource: Fix bug with max_deferment margin calculation
  rtc: Fix some bugs that allowed accumulating time drift in suspend/resume
  rtc: Disable the alarm in the hardware
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clockevents: Set noop handler in clockevents_exchange_device()
  tick-broadcast: Stop active broadcast device when replacing it
  clocksource: Fix bug with max_deferment margin calculation
  rtc: Fix some bugs that allowed accumulating time drift in suspend/resume
  rtc: Disable the alarm in the hardware
</pre>
</div>
</content>
</entry>
<entry>
<title>rtc: Fix some bugs that allowed accumulating time drift in suspend/resume</title>
<updated>2011-11-23T03:25:56+00:00</updated>
<author>
<name>Arve Hjønnevåg</name>
<email>arve@android.com</email>
</author>
<published>2011-11-23T02:24:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=6a8943d9ec2567572fca25cf69ad45844d0141a3'/>
<id>6a8943d9ec2567572fca25cf69ad45844d0141a3</id>
<content type='text'>
The current code checks if abs(delta_delta.tv_sec) is greater or
equal to two before it discards the old delta value, but this can
trigger at close to -1 seconds since -1.000000001 seconds is stored
as tv_sec -2 and tv_nsec 999999999 in a normalized timespec.

rtc_resume had an early return check if the rtc value had not changed
since rtc_suspend. This effectivly stops time for the duration of the
short sleep. Check if sleep_time is positive after all the adjustments
have been applied instead since this allows the old_system adjustment
in rtc_suspend to have an effect even for short sleep cycles.

CC: stable@kernel.org
Signed-off-by: Arve Hjønnevåg &lt;arve@android.com&gt;
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The current code checks if abs(delta_delta.tv_sec) is greater or
equal to two before it discards the old delta value, but this can
trigger at close to -1 seconds since -1.000000001 seconds is stored
as tv_sec -2 and tv_nsec 999999999 in a normalized timespec.

rtc_resume had an early return check if the rtc value had not changed
since rtc_suspend. This effectivly stops time for the duration of the
short sleep. Check if sleep_time is positive after all the adjustments
have been applied instead since this allows the old_system adjustment
in rtc_suspend to have an effect even for short sleep cycles.

CC: stable@kernel.org
Signed-off-by: Arve Hjønnevåg &lt;arve@android.com&gt;
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rtc: Disable the alarm in the hardware</title>
<updated>2011-11-23T03:25:43+00:00</updated>
<author>
<name>Rabin Vincent</name>
<email>rabin.vincent@stericsson.com</email>
</author>
<published>2011-11-22T10:03:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=c0afabd3d553c521e003779c127143ffde55a16f'/>
<id>c0afabd3d553c521e003779c127143ffde55a16f</id>
<content type='text'>
Currently, the RTC code does not disable the alarm in the hardware.

This means that after a sequence such as the one below (the files are in the
RTC sysfs), the box will boot up after 2 minutes even though we've
asked for the alarm to be turned off.

	# echo $((`cat since_epoch`)+120) &gt; wakealarm
	# echo 0 &gt; wakealarm
	# poweroff

Fix this by disabling the alarm when there are no timers to run.

Cc: stable@kernel.org
Cc: John Stultz &lt;john.stultz@linaro.org&gt;
Signed-off-by: Rabin Vincent &lt;rabin.vincent@stericsson.com&gt;
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Currently, the RTC code does not disable the alarm in the hardware.

This means that after a sequence such as the one below (the files are in the
RTC sysfs), the box will boot up after 2 minutes even though we've
asked for the alarm to be turned off.

	# echo $((`cat since_epoch`)+120) &gt; wakealarm
	# echo 0 &gt; wakealarm
	# poweroff

Fix this by disabling the alarm when there are no timers to run.

Cc: stable@kernel.org
Cc: John Stultz &lt;john.stultz@linaro.org&gt;
Signed-off-by: Rabin Vincent &lt;rabin.vincent@stericsson.com&gt;
Signed-off-by: John Stultz &lt;john.stultz@linaro.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rtc: rtc-puv3: Add __devinit and __devexit markers for probe and remove</title>
<updated>2011-11-15T09:13:17+00:00</updated>
<author>
<name>Axel Lin</name>
<email>axel.lin@gmail.com</email>
</author>
<published>2011-10-05T14:29:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=66ae45604c90f25397294099cdb214f642471327'/>
<id>66ae45604c90f25397294099cdb214f642471327</id>
<content type='text'>
Signed-off-by: Axel Lin &lt;axel.lin@gmail.com&gt;
Acked-by: Guan Xuetao &lt;gxt@mprc.pku.edu.cn&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Axel Lin &lt;axel.lin@gmail.com&gt;
Acked-by: Guan Xuetao &lt;gxt@mprc.pku.edu.cn&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>vrtc: change its year offset from 1960 to 1972</title>
<updated>2011-11-12T01:58:58+00:00</updated>
<author>
<name>Feng Tang</name>
<email>feng.tang@intel.com</email>
</author>
<published>2011-11-10T13:23:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=57e6319dd61d5ca10fe8dd57bcce8c0e2c480799'/>
<id>57e6319dd61d5ca10fe8dd57bcce8c0e2c480799</id>
<content type='text'>
Real world year equals the value in vrtc YEAR register plus an offset.
We used 1960 as the offset to make leap year consistent, but for a
device's first use, its YEAR register is 0 and the system year will
be parsed as 1960 which is not a valid UNIX time and will cause many
applications to fail mysteriously. So we use 1972 instead to fix this
issue.

Updated patch which adds a sanity check suggested by Mathias

This isn't a change in behaviour for systems, because 1972 is the one we
actually use. It's the old version in upstream which is out of sync with
all devices.

Signed-off-by: Feng Tang &lt;feng.tang@intel.com&gt;
Signed-off-by: Alan Cox &lt;alan@linux.intel.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Real world year equals the value in vrtc YEAR register plus an offset.
We used 1960 as the offset to make leap year consistent, but for a
device's first use, its YEAR register is 0 and the system year will
be parsed as 1960 which is not a valid UNIX time and will cause many
applications to fail mysteriously. So we use 1972 instead to fix this
issue.

Updated patch which adds a sanity check suggested by Mathias

This isn't a change in behaviour for systems, because 1972 is the one we
actually use. It's the old version in upstream which is out of sync with
all devices.

Signed-off-by: Feng Tang &lt;feng.tang@intel.com&gt;
Signed-off-by: Alan Cox &lt;alan@linux.intel.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux</title>
<updated>2011-11-07T03:44:47+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2011-11-07T03:44:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux.git/commit/?id=32aaeffbd4a7457bf2f7448b33b5946ff2a960eb'/>
<id>32aaeffbd4a7457bf2f7448b33b5946ff2a960eb</id>
<content type='text'>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include &lt;linux/module.h&gt;
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include &lt;linux/module.h&gt;
  net: sch_generic remove redundant use of &lt;linux/module.h&gt;
  net: inet_timewait_sock doesnt need &lt;linux/module.h&gt;
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include &lt;linux/module.h&gt;
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include &lt;linux/module.h&gt;
  net: sch_generic remove redundant use of &lt;linux/module.h&gt;
  net: inet_timewait_sock doesnt need &lt;linux/module.h&gt;
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h
</pre>
</div>
</content>
</entry>
</feed>
