msm_fb: display: Send pixel data while sending on/off commands

To avoid LCD off sequence violeation for some LCD vendors,
we need to keep sending video data during off/sleep commands.
This fixes issues seen while going to a suspend.

Crs-Fixed: 445707
Change-Id: I0ba2704502e8959d0f82deea60481cd5b1f0be20
Signed-off-by: Siddhartha Agrawal <agrawals@codeaurora.org>

Conflicts:
	drivers/video/msm/mdp.c
msm_fb: display: add mutex to video_off

It is possible  that pipe_commit still be issued by
frame work after suspend had been started. Therefore
mutex lock within video_off is necessary to prevent
race condition from happening between these two threads.

Change-Id: I57f51744c1654d6def8664c492035631a5b7081e
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>

Conflicts:
	drivers/video/msm/mdp4_overlay_dtv.c
msm: display: vsync usage in turning off dsi video

Add timeout to waiting for vsync so that it can come out
when vsync interrupt is not working.
Need not wait for vsync after timing engine is off.

CRs-Fixed: 458419

Change-Id: Ib989e435405613d891024ba15144723730454e34
Signed-off-by: Ken Zhang <kenz@codeaurora.org>
msm_fb: display: fix iommu page fault when iommu buffer freed

There has possibility that pipe commit come very close to next vsync.
This may cause two consecutive pipe_commits happen within same vsync
period which cause iommu page fault when previous iommu buffer is
freed since mdp stil fetching it. Set ION_IOMMU_UNMAP_DELAYED flag
at ion_map_iommu() to add delay un mapping iommu buffer to fix this problem.
Otherwise four buffer mechanism is needed to avoid this problem..
Also ion_unmap_iommu() may take long time to free an ion buffer. Move
mdp4_overlay_iommu_unmap_freelist(mixer) called after stage_commit()
to increase chance to have pipe_commit (up to stage_commit) is completed
within same vsync period
This patch also fix an potential race condition at wait_for_completion
between show_event thread and wait4vsync thread.

Change-Id: I089950ac61c0bd3c4207b8925817577e42fbb258
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>

Conflicts:
	drivers/video/msm/mdp4_overlay_lcdc.c
msm_fb: display: issue completion when disabling vsync irq

When vsync irq is disabled, vsync_wait_cnt is reset to zero and
completion is issued out as they are done in isr to make sure all
wait_for_completion is released.

Change-Id: I689f0c8cde43404d0caf5bb4644efa6385798d0e
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
mms_fb: display: init pipe default configure as solidfill

Initialize mdp pipes default config as solid fill so that
there will have no memory fetch if pipe are staged into
mixer while flush bits are left behind and set at next vsync.
This is will prevent mdp iommu page fault from happening
at address 0x00000000 during resume.

Change-Id: Ide944ec1d069629f1ae2ecd0daf49c69ce2af2eb
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
msm_fb: display: Do clock control within mdp4_hw_init

Since mdp4_hw_init() access mdp registers, mdp clock control
within mdp4_hw_init() is necessary.

CRs-fixed: 455506
Change-Id: I768f468314fc920029b4c88e49ef6a74f6b74f58
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
msm_fb: Correct R and G offsets for correct mapping

R and G colors are swapped when ARGC test cases are executed.
Correct the color mapping to right register offset to fix
the color swapping issue.

CRs-Fixed: 491215

Change-Id: I4997acce577bdbbdf39e22502a678dbecf0bfc37
Signed-off-by: Jeevan Shriram <jshriram@codeaurora.org>
msm: mdp: Revert MDP Port split changes

Revert MDP changes to avoid bus overflow
seen in camera usecases.

Change-Id: I1c687750bd22c8f64ab28a500562cbfbcb6a6048
Signed-off-by: Kiran Kumar H N <hurlisal@codeaurora.org>
Signed-off-by: Praveen Ac <praveenac@codeaurora.org>