msm_fb: display: consolidate overlay_commit and
 display_commit

This patch consolidate overlay_commit into display_commit to
support iommu buffer be used as frame buffer

Change-Id: Idc33a340b7cf199c8e2f5e7f09b901d1502fac9e
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
msm_fb: display: Consolidate commit ioctls

Overlay commit and display commit were two separate
ioctls doing similar things. This change consolidates
the two into one display commit ioctl. With this, we
can use the RGB0 pipe with an IOMMU framebuffer.

Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>

Conflicts:

	drivers/video/msm/mdp4.h
	drivers/video/msm/mdp4_overlay.c
	drivers/video/msm/msm_fb.c
	include/linux/msm_mdp.h
msm_fb: display: update var in display commit

Need the value of var in display commit to update the double buffers.
If not, double buffering doesn't work in minui (eg. recovery and off-charger
mode)

Change-Id: I1fba52243cc781f18742131759245911d32c9b18
msm: mdp: Release all fences on blank

Signed-off-by: Ken Zhang <kenz@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
Signed-off-by: Iliyan Malchev <malchev@google.com>
msm : display: buffer sync point update

Do not put sync point if it has been added to
a fence successfully in error handling

Signed-off-by: Ken Zhang <kenz@codeaurora.org>
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>

Conflicts:

	drivers/video/msm/msm_fb.c
msm: display: check get_unused_fd_flags return val

Not checking the error code, which might be negative, will cause us to wrongly
reference fdt[fd] by using the error code, causing kernel panic in fd_install.

Change-Id: I1f8e68e74bdbdd5b81bc3450f7d93b5cd96c9439
Signed-off-by: Iliyan Malchev <malchev@google.com>
Huawei: Update defconfig