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  1. 21 2月, 2007 14 次提交
  3. 20 2月, 2007 10 次提交
    • O
      [ARM] 4223/1: ixdp2351 : Fix for a define error · 37985b44
      由 Ozzy 提交于 
      Fix syntax error for a define in ixdp2351.h
Signed-off-by: Nozzy <linux-ozzy@gmx.de>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      37985b44
    • R
      backlight: Separate backlight properties from backlight ops pointers · 599a52d1
      由 Richard Purdie 提交于 
      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: NRichard Purdie <rpurdie@rpsys.net>
      599a52d1
    • R
      backlight: Rework backlight/fb interaction simplifying, lots · 37ce69a5
      由 Richard Purdie 提交于 
      fb_info->bl_mutex is badly thought out and the backlight class doesn't
need it if the framebuffer/backlight register/unregister order is
consistent, particularly after the backlight locking fixes.

Fix the drivers to use the order:

backlight_device_register()
register_framebuffer()
unregister_framebuffer()
backlight_device_unregister()

and turn bl_mutex into a lock for the bl_curve data only.
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
      37ce69a5
    • R
      backlight/fbcon: Add FB_EVENT_CONBLANK · 994efacd
      由 Richard Purdie 提交于 
      The backlight class wants notification whenever the console is blanked
but doesn't get this when hardware blanking fails and software blanking
is used. Changing FB_EVENT_BLANK to report both would be a behaviour
change which could confuse the console layer so add a new event for
software blanking and have the backlight class listen for both.
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
      994efacd
    • R
      backlight: Convert semaphore -> mutex · 249040dc
      由 Richard Purdie 提交于 
      Convert internal semaphore to a mutex
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
      249040dc
    • R
      backlight: Fix external uses of backlight internal semaphore · 28ee086d
      由 Richard Purdie 提交于 
      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: NRichard Purdie <rpurdie@rpsys.net>
      28ee086d
    • R
      backlight: Remove unneeded owner field · dfcba200
      由 Richard Purdie 提交于 
      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 <dtor@insightbb.com>
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
      dfcba200
    • R
      [MIPS] Fixup copy_from_user_inatomic · e03b5269
      由 Ralf Baechle 提交于 
      From the 01408c49 log message:

The problem is that when we write to a file, the copy from userspace to
pagecache is first done with preemption disabled, so if the source
address is not immediately available the copy fails *and* *zeros* *the*
*destination*.

This is a problem because a concurrent read (which admittedly is an odd
thing to do) might see zeros rather that was there before the write, or
what was there after, or some mixture of the two (any of these being a
reasonable thing to see).

If the copy did fail, it will immediately be retried with preemption
re-enabled so any transient problem with accessing the source won't
cause an error.

The first copying does not need to zero any uncopied bytes, and doing
so causes the problem.  It uses copy_from_user_atomic rather than
copy_from_user so the simple expedient is to change copy_from_user_atomic
to *not* zero out bytes on failure.

< --- end cite --- >

This patch finally implements at least a not so pretty solution by
duplicating the relevant part of __copy_user.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      e03b5269
    • A
      [MIPS] Fix struct sigcontext for N32 userland · 269dd2b2
      由 Atsushi Nemoto 提交于 
      The kernel use 64-bit for sc_regs[0], and both N32/N64 userland
expects it was 64-bit.  But size of 'long' on N32 is actually 32-bit.
So this definition make some confusion.  Use __u32 and __u64 for
N32/N64 sigcontext to get rid of this confusion.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      269dd2b2
    • A
      [PATCH] Declare init_irq_proc before we use it. · 6168a702
      由 Andrew Morton 提交于 
      powerpc gets:

init/main.c: In function `do_basic_setup':
init/main.c:714: warning: implicit declaration of function `init_irq_proc'

but we cannot include linux/irq.h in generic code.

Fix it by moving the declaration into linux/interrupt.h instead.

And make sure all code that defines init_irq_proc() is including
linux/interrupt.h.

And nuke an ifdef-in-C

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      6168a702
  5. 19 2月, 2007 7 次提交
  7. 18 2月, 2007 9 次提交