msm_fb: Handle histogram IRQ cleanly during suspend/resume

Currently, if the histogram disable IOCTL comes after panel
is turned off, we early return the IOCTL causing the interrupt
to be left enabled. This causes IPC issues during suspend. Fix
this issue by properly enabling/disabling the histogram interrupt
during suspend/resume scenario.

CRs-Fixed: 434491
Change-Id: I4d38776a43ea854aff3c10c8d9d5450af1d98c91
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>
msm_fb: call complete for no_update timer after power flag is set

In Suspend case, after we complete for no_update timer and before
we set power down flag to false we might recyle the CABL sequence
which might cause do_hist to fail till resume

CRs-Fixed: 434491
Change-Id: I51f9f0d9edb26c7671d44162f55c01acdde8f3d7
Signed-off-by: Kalyan Thota <kalyant@codeaurora.org>
msm_fb: display: empty pending queue during suspend

Overlay_play() adds a pipe into pending queue and pan_display()
will commit those pipes to hardware and empty queue. This patch
will make sure queue is empty at suspend so that no unexpected
pipes will be commited to hardware by pan_display() at resume.
Otherwise, iommu page fault may happen.

Change-Id: Iafdf469c6cdbf5d469c9dee114555a8d1adb9c66
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>

Conflicts:

	drivers/video/msm/mdp4_overlay_dsi_cmd.c

Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>
msm: kgsl: Process all idle checks

Rather than ignore some categories of idle events,
bin the events with small timelines and process all
events with the GPU DCVS algorithm.

CRs-Fixed: 427559
Signed-off-by: Lucille Sylvester <lsylvest@codeaurora.org>
Change-Id: I1a5e8d8af6020a08cf95a9daa934e825bc5f2854
msm: vidc: Add the change to prevent memory leak

Memory allocated for "buf_entry" and "sched_cctxt"
is not freed in case if error is returned. This
change prevents possible memory leak in video
decoder driver.

CRs-fixed: 432323
Change-Id: I1c8775fb701f1568f704b6ddbb4e835304d2a817
Signed-off-by: Shobhit Pandey <cshopan@codeaurora.org>