linux-toradex.git/drivers/rtc/rtc-m48t59.c, branch v3.6.1

rtc: convert drivers/rtc/* to use module_platform_driver()

2012-01-11T00:30:53+00:00

This patch converts the drivers in drivers/rtc/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Signed-off-by: Axel Lin 
Acked-by: Mark Brown 
Acked-by: Mike Frysinger 
Acked-by: Guan Xuetao 
Acked-by: Linus Walleij 
Acked-by: Haojian Zhuang 
Cc: Alessandro Zummo 
Cc: Srinidhi Kasagar 
Cc: Lars-Peter Clausen 
Cc: Ben Dooks 
Cc: John Stultz 
Acked-by: Jean-Christophe PLAGNIOL-VILLARD 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

treewide: Convert uses of struct resource to resource_size(ptr)

2011-06-10T12:55:36+00:00

Several fixes as well where the +1 was missing.

Done via coccinelle scripts like:

@@
struct resource *ptr;
@@

- ptr->end - ptr->start + 1
+ resource_size(ptr)

and some grep and typing.

Mostly uncompiled, no cross-compilers.

Signed-off-by: Joe Perches 
Signed-off-by: Jiri Kosina

RTC: Convert rtc drivers to use the alarm_irq_enable method

2011-02-03T21:02:35+00:00

Some rtc drivers use the ioctl method instead of the alarm_irq_enable
method for enabling alarm interupts. With the new virtualized RTC
rework, its important for drivers to use the alarm_irq_enable instead.

This patch converts the drivers that use the AIE ioctl method to
use the alarm_irq_enable method. Other ioctl cmds are left untouched.

I have not been able to test or even compile most of these drivers.
Any help to make sure this change is correct would be appreciated!

CC: Alessandro Zummo 
CC: Thomas Gleixner 
CC: Marcelo Roberto Jimenez 
Reported-by: Marcelo Roberto Jimenez 
Tested-by: Marcelo Roberto Jimenez 
Signed-off-by: John Stultz

rtc/m48t59: use rtc_valid_tm() to check returned tm

2010-08-11T15:59:07+00:00

Use rtc_valid_tm to check the returned struct rtc_time *tm, to avoid
returning a wrong tm value.

Signed-off-by: Wan ZongShun 
Cc: Paul Gortmaker 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc/m48t59: kfree(NULL) is OK

2010-08-11T15:59:06+00:00

Signed-off-by: Wan ZongShun 
Cc: Alessandro Zummo 
Cc: Paul Gortmaker 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sysfs: add struct file* to bin_attr callbacks

2010-05-21T16:37:31+00:00

This allows bin_attr->read,write,mmap callbacks to check file specific data
(such as inode owner) as part of any privilege validation.

Signed-off-by: Chris Wright 
Signed-off-by: Greg Kroah-Hartman

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30T13:02:32+00:00

percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo 
Guess-its-ok-by: Christoph Lameter 
Cc: Ingo Molnar 
Cc: Lee Schermerhorn

rtc: fix driver data issues in several rtc drivers

2009-12-16T15:19:58+00:00

Herton Ronaldo Krzesinski recently raised up, and fixed, an issue with the
rtc_cmos driver, which was referring to an inconsistent driver data.

This patch ensures that driver data registration happens before
rtc_device_register().

Signed-off-by: Alessandro Zummo 
Acked-by: Thomas Hommel 
Acked-by: Hans-Christian Egtvedt 
Acked-by: Paul Mundt 
Cc: David S. Miller 
Cc: Thomas Bogendoerfer 
Cc: Andrew Sharp 
Cc: Atsushi Nemoto 
Cc: Alexander Bigga 
Cc: Thomas Bogendoerfer 
Cc: Mark Zhan 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: bunch of drivers: fix 'no irq' case handing

2009-01-06T23:59:23+00:00

This patch fixes a bunch of irq checking misuses.  Most drivers were
getting irq via platform_get_irq(), which returns -ENXIO or r->start.

rtc-cmos.c is special.  It is using PNP and platform bindings.  Hopefully
nobody is using PNP IRQ 0 for RTC.  So the changes should be safe.

rtc-sh.c is using platform_get_irq, but was storing a result into an
unsigned type, then was checking for < 0.  This is fixed now.

Signed-off-by: Anton Vorontsov 
Cc: Alessandro Zummo 
Acked-by: David Brownell 
Acked-by: Paul Mundt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc-m48t59: shift zero year to 1968 on sparc (rev 2)

2008-10-29T22:35:24+00:00

Shift the first year to 1968 for Sun SPARC machines.

Move this logic from platform specific files to rtc driver
as this fixes problems with calculating a century bit.

Signed-off-by: Krzysztof Helt 
Tested-by: Alexander Beregalov
Signed-off-by: David S. Miller