msm_fb: display: Add support to YCBYCR MDP format

Add support of MDP_YCBYCR_H2V1 interleaved YUV format to MDP
for a-family targets.

Signed-off-by: Mayank Chopra <makchopra@codeaurora.org>
Change-Id: Ibb5242e82e020d73d3ec9d1780ffc569a86329c0
msm: rotator: Add support to YCBYCR rotator format

Add support for MDP_YCBYCR_H2V1 interleaved YUV format in rotator
block.

Signed-off-by: Mayank Chopra <makchopra@codeaurora.org>
Change-Id: I66344d939a6b1c56f495e2c85a1faa6e9314f2e4
msm: vidc: return error in case of init failure

Return error if error comes in video driver
initialization.

Change-Id: I54c516808587fb7d94c3d517f8c72c6c9aa9d91d
CRs-fixed: 542535
Signed-off-by: Pushkaraj Patil <ppatil@codeaurora.org>
msm: vidc: Validate input data before processing

User controlled data needs to be validated before
processing, otherwise it may corrupt existing data
and other programming variables which may further
lead to crash in kernel space.
This change validates user specified buffer's data,
such as offset and data length, before performing
any operations in kernel.

Change-Id: Idb2a5c4c270cdbb55adfc0c22b9296b7dd359de9
CRs-fixed: 547695
Signed-off-by: Deepak Verma <dverma@codeaurora.org>
msm: vidc: Initialize kernel space stack variables

This change initializes kernel space stack variables
that are passed between kernel space and user space
using ioctls.
Non initialization of these variables may lead to
leakage of memory values from the kernel stack to
user space.

Change-Id: Icb195470545ee48b55671ac09798610178e833e1
CRs-fixed: 556771,563420
Signed-off-by: Deepak Verma <dverma@codeaurora.org>
msm: vidc: Check validity of userspace address

Before writing to a userspace address, verification
of the validity of user space address is required.

Change-Id: I9141e44a6c11aaf3f4d57c08bb0dd26a7b214f34
CRs-fixed: 556356
Signed-off-by: Deepak Verma <dverma@codeaurora.org>
msm: vidc: Validate userspace buffer count before using it

Validate the number of buffers count variable before
using it to avoid structure overflow error.

Change-Id: I61582c93e0f26ec6842e437134fb8a42bdbc36ff
CRs-fixed: 563654
Signed-off-by: Pachika, Vikas Reddy <vpachi@codeaurora.org>
msm: vidc: Validate userspace buffer count

Makesure the number of buffers count is less than
the maximum limit to avoid structure overflow errors.

Change-Id: Icf3850de36325637ae43ac95f1c8f0f63e201d31
CRs-fixed: 563694
Signed-off-by: Pachika, Vikas Reddy <vpachi@codeaurora.org>
ion: ioctl compat with old api

Change-Id: I35e7459e5fcd1e14c8f579e9855472de0d1909d2