hammerhead_defconfig: Enable usb tablet devices and xpad

Bug: 11759904
Change-Id: If83a00279300c9d069d737cfa70fd15f406b73a3
Signed-off-by: jude84.kim <jude84.kim@lge.com>
Signed-off-by: Devin Kim <dojip.kim@lge.com>
arm/dt: hammerhead: Update the gamma value for J1 (11/26/2013)

Change-Id: Ie5a83570db648689cdd4ec1e2c237a6f8f046532
Signed-off-by: sooduek.kim <sooduek.kim@lge.com>
Signed-off-by: Devin Kim <dojip.kim@lge.com>
arm/dt: msm8974: Change I2C clock for main and sub camera separately

Change I2C clock for main and sub camera separately

Change-Id: I76c75c7a91362df5e8eabc5e9b9d596a92657f60

Signed-off-by: Vasko Kalanoski <vaskok@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: camera: Use correct type for function return code

Using an unsigned integer to hold the signed return code
is wrong. So fix it by using the correct type to hold the
return code.

CRs-fixed: 512824
Change-Id: I389732a9af740174b26c8c43946e638a1be0d2a2
Signed-off-by: Seemanta Dutta <seemanta@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: camera: Fix various small issues in cci driver

Remove some unused ioctl exposed, Also add
some bound checks for ioctl user params.

Change-Id: Ifdd441fdb25fd20b005c4e4e1ebe4e203f1216ac
CRs-Fixed: 511382
Signed-off-by: Hariram Purushothaman <hpurus@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: camera_v2: CCI release resources in case of timeout

Turn off the CCI clocks and release gpio if reset timeout error is
received in function_msm_cci_init()

Bug: 11825720
Change-Id: Ib4387ce08635e0b4e6458f225bd3013557d6b5fa
Signed-off-by: Evgeniy Borisov <eborisov@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: camera: Exit gracefully while camera daemon crashes

Add camera daemon shutdown handling in all camera
sub devices to exit camera gracefully and it helps
to restart camera.

Change-Id: I39643a16f100b873275efe3a0c6184fe54e52830
Signed-off-by: Suresh Vankadara <svankada@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: camera_v2: Don't touch CCI if camera daemon crashed.

If daemon crashes, refrain from writing to the CCI. This is needed
because these writes will not wait in a process crash scenario and can
potentially leave the CCI in a bad state.

Change-Id: I785cb4af8dc3893b8a7f11e1d1c2a2e1ad775665
Signed-off-by: Satyavaraprasad Yerramsetti <satyav@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: camera: Reset CCI core based on I2C MASTER

CCI core is used by camera sensor, actuator and EEPROM. CCI core gets
reset first time when either one of hardware modules initializes it.
But, as per hardware requirement sensor has to be powered up before
CCI can be reset. This imposes limitation in the sequence in which
camera is opened. To remove this limitation, initialize CCI core
only for corresponding I2C MASTER everytime either of the hardware
modules initilizes it.

Change-Id: If2d7cc26fe23533243714839e6375f73d5efd4f2
Signed-off-by: Sreesudhan Ramakrish Ramkumar <srramku@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: camera: Checking an enum value greater than zero

An enum value cci_i2c_master is not checked to be greater than 0.
Add the check.

Change-Id: Ibe75ab7155def45d81b8127c5eda3fa2ed570bce
Signed-off-by: Xu Han <hanxu@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
msm: cci: fix for invalid error handle

fix for invalid error handle in msm cci
- msm_cci_flush_queue function never return
error because variable rc is unsigned int
- msm_cci_init function return result int32_t
but variable rc is int

Change-Id: I2610b08f4eceedfbb8bd07d8027310f43b9ee6bf
Signed-off-by: Vasko Kalanoski <vaskok@codeaurora.org>
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
ASoC: msm-hdmi-codec-rx: sync state with HDMI core

To keep the state of the HDMI core and HDMI audio
sessions congruent, audio checks the state of the
core on startup, then notifies the core of the
active audio session.  On shutdown, notifies the
core of the event.

Change-Id: I8f90a4610ed9345c1affa67a7fee306e7d388d85
CRs-Fixed: 539309
Author: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Devin Kim <dojip.kim@lge.com>
msm: mdss: hdmi: HDMI cable connection status and vote

Add HDMI cable connection status functionality to be used by
audio driver before starting the audio session and vote for
hdmi tx core to remain power on until the audio has completed
its processing.

Change-Id: I35d1bafff472da19e04aa44f4ac91b1c3c0349e1
Author: Ajay Singh Parmar <aparmar@codeaurora.org>
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
Signed-off-by: Devin Kim <dojip.kim@lge.com>
msm: mdss: Fix race condition during device shutdown

During device shutdown or restart, two separate contexts can call
mdss_fb_release. One system shutdown/restart thread which calls
shutdown routine registered through device driver. Other closing
of frame buffer devices from user processes. Fix race condition
between these two contexts by using proper locking mechanism and
releasing all the resources.

Change-Id: I583b0f1273d984215e276daf3b6307f3b6e9e8c6
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>

msm: mdss: release all overlay resources on last fb release

There are cases where the last frame buffer reference is released from a
different pid than the one who originally allocated the resource.
In these cases we can still deallocate all resources currently allocated
as we know that all references on fb dev have been released.

This issue was previously fixed by a42150bd. But later it again resurfaced
with 831a828.

Change-Id: Ie35194b1e11ae90ff886b1be22cf02c842a76d1a
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>

msm: mdss: release all overlay resources if calling process is unknown

There are cases where fb release is called from a process which is
unknown to internal process tracking list. This usually happens when
a crash handlers closes open fds in a kernel worker thread rather than
in process context. In such cases if fb open happens from a completely
new process then it may lead to pipe leakage due to race condition
between unknown process and this new, fb open, process. Prevent this by
releasing all overlay resources when fb release is called from an
unknown process context.

Change-Id: I07157116413dfb26e0b87c61f9def916a653340a
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>

Conflicts:
	drivers/video/msm/mdss/mdss_fb.h

msm: mdss: Fix race conditions during device shutdown

Wait for the display commit thread to exit and abort all
pending ioctls when releasing the framebuffer device. This is
necessary to address any potential race conditions between these
threads that operate on a common data structure.

Change-Id: I5ab32758c34d4e80c4e85f949ffa0054d3cb5340
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>

Conflicts:
	drivers/video/msm/mdss/mdss_fb.c

msm: mdss: stop display commit thread only if it is running

When the framebuffer device is shutdown, it is possible that
the display commit thread has already been stopped. In such
scenarios, ensure that we not attempt to stop the thread again
to avoid any potential crashes.

CRs-Fixed: 584499
Change-Id: If0026cdcc4367c149815933ffe4ed08056d54770
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>

Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>
Bug: 11429494