defconfig: enable input mediator
msm: cpufreq: when breaking out early set return value to good
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>
msm: display: Fix composition issues when framework rebooted in suspend.

Currently, if framework is rebooted while in suspend mode, borderfill
is not unset due to which MDP composition can not be enabled. This patch
fixes the issue.

Change-Id: I8b671eccedebf2bb08724cf2d284d4ab27a71360
Signed-off-by: Vishnuvardhan Prodduturi <vproddut@codeaurora.org>
msm_fb: display: add one more pipe_commit delay before free ion buffer

It is possible that two consective pipe_commits happen within
same vsync period.  This will cause iommu page fault due to an ion buffer
that is being fetched by mdp's pipe is freed. It needs one pipe_commit
delay to free ion buffer to prevent iommu page from happening. Therefore
an extra free stage is needed to empty ion buffer free list.
Also, ION_IOMMU_UNMAP_DELAYED flag is not necessary at mapping of an
ion buffer since one pipe_commit delay had been added.

Change-Id: I340e002e8dc30b6faa0c095ba042eab50e8b7c88
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
msm_fb: display: fix the suspend/resume hang caused by wait4vsync stuck

wait_for_completion in wait4vsync stucks after multiple suspend/resume
tests. The cause is that when show_event timeout happens, or vsync isr
is disabled for long time, wait_vsync_cnt resets to zero, and in vsync
isr complete_all has no chance to be called which caused mdp hang. So
complete_all needs to be called whenever show_event has timeouts.

Change-Id: I124899ff95fd5550d2759d215f16fa9cb8c0c211
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
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 a pre-fill to writeback buffers.

When switching mdp operating mode to blt, writeback buffers need
pre-fill. Move the pre-fill code from isr routine to do_blt, where
actual switch to blt mode happens.

CRs-fixed: 471098
Change-Id: I0f845397894c749ac518a1fa605f84cd5fc2ad15
Signed-off-by: Mayank Chopra <makchopra@codeaurora.org>
smartmax: allow enabling logging during runtime
msm_fb: Fail fb2 open if called during suspend

At present, if msm_fb_open() for fb2 is called during suspend,
we increment the ref_count for fb2 and return success without
turning on the writeback pipeline. This causes the WFD client
think that fb2 is successfully opened whereas fb2_open should
not successful during suspend. Hence, return error if msm_fb_open()
is called for fb2 during suspend.

CRs-fixed: 475310
Change-Id: I73167a120a64ac18c5789ccc9cf7faad14b50b94
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>
Revert "msm_fb: display: free pipe if blt is detected for the pipe"

This reverts commit e29d1b2e70c3d6d8417b2791f62043bcf084b9bb because
of iommu page faults on some targets.

Change-Id: Ia9f9c37720fb23da347eea480ffa55e536231c65
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Revert "msm_fb: display: don't enable blt mode"

This reverts commit aa980658ac73a347fc94108d4fc886860d0c1714 because
of iommu page faults on some targets.

Change-Id: I2b0f801ab00f473dcb3f3918b30ebf594a5a2058
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
msm_fb: display: disable mdp blt mode

The switch of blt mode may cause mdp hang on some targets. To avoid
blt switch, we won't allocate the pipe that requires blt
mode. Basically this implies two things: downscaling is done by
rotator and gpu composition is used in case of blt mode is needed.

This implementation is to calculate mdp clk requirement based on the
req data passed from userspace before setting the actural pipe
data. If overlay_set asks for mdp clk that is greater than
mdp_max_clk, meaning blt is needed, overlay_set returns before pipe
allocation or pipe data change, so this way can avoid mdp to work on
wrong pipe data.

Change-Id: I22e73d08bed920b366c18ee21b132339cf2a0347
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
defconfig: remove usless usb storage devices support