linux-toradex.git/drivers/macintosh, branch v2.6.21.6

drivers/macintosh/smu.c: fix locking snafu

2007-04-17T23:36:27+00:00

It got its lock and unlock backwards.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=8334

(obviously, this code could be using plain old spin_lock_irq(), too)

Cc: 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

backlight: Separate backlight properties from backlight ops pointers

2007-02-20T09:26:53+00:00

Per device data such as brightness belongs to the indivdual device
and should therefore be separate from the the backlight operation
function pointers. This patch splits the two types of data and
allows simplifcation of some code.

Signed-off-by: Richard Purdie

backlight: Clean up pmac_backlight handling

2007-02-20T09:26:40+00:00

Move the setting/unsetting of pmac_backlight into the
backlight core instead of doing it in each driver.

Signed-off-by: Richard Purdie

backlight: Fix external uses of backlight internal semaphore

2007-02-20T08:38:45+00:00

backlight_device->sem has a very specific use as documented in the
header file. The external users of this are using it for a different
reason, to serialise access to the update_status() method.

backlight users were supposed to implement their own internal
serialisation of update_status() if needed but everyone is doing
things differently and incorrectly. Therefore add a global mutex to
take care of serialisation for everyone, once and for all.

Locking for get_brightness remains optional since most users don't
need it.

Also update the lcd class in a similar way.

Signed-off-by: Richard Purdie

backlight: Remove unneeded owner field

2007-02-20T08:37:40+00:00

Remove uneeded owner field from backlight_properties structure.

Nothing uses it and it is unlikely that it will ever be used. The
backlight class uses other means to ensure that nothing references
unloaded code.

Based on a patch from Dmitry Torokhov 

Signed-off-by: Richard Purdie

[PATCH] sysctl: remove insert_at_head from register_sysctl

2007-02-14T16:09:59+00:00

The semantic effect of insert_at_head is that it would allow new registered
sysctl entries to override existing sysctl entries of the same name.  Which is
pain for caching and the proc interface never implemented.

I have done an audit and discovered that none of the current users of
register_sysctl care as (excpet for directories) they do not register
duplicate sysctl entries.

So this patch simply removes the support for overriding existing entries in
the sys_sysctl interface since no one uses it or cares and it makes future
enhancments harder.

Signed-off-by: Eric W. Biederman 
Acked-by: Ralf Baechle 
Acked-by: Martin Schwidefsky 
Cc: Russell King 
Cc: David Howells 
Cc: "Luck, Tony" 
Cc: Ralf Baechle 
Cc: Paul Mackerras 
Cc: Martin Schwidefsky 
Cc: Andi Kleen 
Cc: Jens Axboe 
Cc: Corey Minyard 
Cc: Neil Brown 
Cc: "John W. Linville" 
Cc: James Bottomley 
Cc: Jan Kara 
Cc: Trond Myklebust 
Cc: Mark Fasheh 
Cc: David Chinner 
Cc: "David S. Miller" 
Cc: Patrick McHardy 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] sysctl: mac_hid: remove unnecessary insert_at_head flag

2007-02-14T16:09:56+00:00

With unique sysctl binary numbers setting insert_at_head is pointless.

Signed-off-by: Eric W. Biederman 
Cc: Jiri Kosina 
Cc: Benjamin Herrenschmidt 
Cc: Dmitry Torokhov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] remove many unneeded #includes of sched.h

2007-02-14T16:09:54+00:00

After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau 
Acked-by: Russell King 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[POWERPC] Correct AC Power: in /proc/pmu/info on ibook1

2007-02-13T04:35:52+00:00

/proc/pmu/info contains AC Power: 0 when booting without battery.
Force AC Power, it will be updated whenever the battery state changes.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras

[POWERPC] move variables in drivers/macintosh to bss

2007-02-13T04:35:52+00:00

Move all the initialized variables to bss.
Mark a version string as const.

Signed-off-by: Olaf Hering 
Signed-off-by: Paul Mackerras