leds: At disable, set the trigger to default instead of wiping it

Change-Id: Ifb4a3b3034c441d29fd1d9f209ed829adfc76a72

Signed-off-by: flar2 <asegaert@gmail.com>
LCD_KCAL: Color Control driver for Nexus 5

Conflicts:
	arch/arm/mach-msm/lge/board-8974-hammerhead.c

Signed-off-by: flar2 <asegaert@gmail.com>
vfp: since we use hardfloat, change the modifer accordingly

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
backlight: fix a bug where the screen would be completely dark or near darkness with backlight_dimmer enabled when the display dimmed. The brightness level can't be any lower than dev->min_brightness and previous code allowed that to happen, so fix it.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
backlight: clean the code.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
backlight: add minimum backlight brightness module param.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
backlight: scale max current when the brightness level is below 15 instead of using always 0.

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
sched/fair: Optimize find_busiest_queue()

Use for_each_cpu_and() and thereby avoid computing the capacity for
CPUs we know we're not interested in.

Reviewed-by: Paul Turner <pjt@google.com>
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-lppceyv6kb3a19g8spmrn20b@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul Reioux <reioux@gmail.com>

backported for Linux 3.4

Conflicts:
	kernel/sched/fair.c
Signed-off-by: flar2 <asegaert@gmail.com>
sched/fair: Optimize cgroup pick_next_task_fair()

Since commit 2f36825b1 ("sched: Next buddy hint on sleep and preempt
path") it is likely we pick a new task from the same cgroup, doing a put
and then set on all intermediate entities is a waste of time, so try to
avoid this.

Measured using:

  mount nodev /cgroup -t cgroup -o cpu
  cd /cgroup
  mkdir a; cd a
  mkdir b; cd b
  mkdir c; cd c
  echo $$ > tasks
  perf stat --repeat 10 -- taskset 1 perf bench sched pipe

PRE :      4.542422684 seconds time elapsed   ( +-  0.33% )
POST:      4.389409991 seconds time elapsed   ( +-  0.32% )

Which shows a significant improvement of ~3.5%

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/1328936700.2476.17.camel@laptop
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul Reioux <reioux@gmail.com>

Backported for Linux 3.4 kernel

Conflicts:
	kernel/sched/fair.c
Signed-off-by: flar2 <asegaert@gmail.com>
sched/fair: improve fairness efficiency

Measured using hackbench:

PRE-patch :      4.542422684 seconds time elapsed   ( +-  47.40% )
POST-page :      2.389409991 seconds time elapsed   ( +-  47.40% )

Which shows a significant improvement of ~47.40%

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
update defconfig

Signed-off-by: flar2 <asegaert@gmail.com>
Revert "sched/fair: improve fairness efficiency"

This reverts commit 3e39cbd23a41881ec85a7b09312db997fb878d57.
Revert "sched/fair: Optimize cgroup pick_next_task_fair()"

This reverts commit d8c01443ac42981982072425fbbca67213d98bf2.
Revert "sched/fair: Optimize find_busiest_queue()"

This reverts commit 0b6baea77d563184c1d2c3867ab0636fcb77231d.