msm: kgsl: Add check for NULL value from dev_get_drvdata

Check to see if dev_get_drvdata returns NULL and handle it.

CRs-Fixed: 552580
Change-Id: Ic0dedbad426dbbe15896608213067ee7337f3b34
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
msm: mdss: Avoid variable overloading

A particular variable is overloaded and used in 2 different
contexts. This causes overwriting of original value and leads
to incorrect error handling. This code adds a new variable to
avoid such condition.

Change-Id: Ibd040e6b4ce95759cc0011304940365c70e6c12a
Signed-off-by: Shalabh Jain <shalabhj@codeaurora.org>
msm: mdss: restructure rotator code and add mutex for rotator api

The rotator data structure should be maintained in the rotator file
and rotator api calls should be following current ioctls, namely,
rotator_setup follows overlay_set, rotator_play follows overlay_play,
and rotator_unset follows overlay_unset. In this way, rotator code is
modulized and data is isolated easily by adding proper locking.

CRs-fixed: 563019
Change-Id: I3aa0db57d65cf9ae88c7e7cbccb3fa73a25e5902
Signed-off-by: Huaibin Yang <huaibiny@codeaurora.org>
msm: mdss: Fix mdss iommu detach-attach issue

Move iommu attach logic to rotator play and writeback
queue buffer from overlay_kickoff to make sure iommu is
enable before mapping any buffers.

Change-Id: I92eb3d4686c1641728980d057f2de6c0d324be71
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>
msm: mdss: do proper error handling in case of rotator setup fail

When rotator setup fails, the session should only be finished internally
if it hasn't been reported to userspace. At the same time, need to
ensure that proper cleanup of rotator list is happening, through
internal release path.

Change-Id: I7a6f46261bf8783547de1c7f7fd6893916b25827
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
msm: mdss: move rotator SMP reservation to rotator setup

Shared memory pool (SMP) blocks are limited, in some cases where there
are many overlay pipes used, we may not be able to get enough blocks for
rotator sessions. In such cases fall-back solution must be considered,
however for this to happen this would need to be identified during
rotator session setup. Move logic to do pipe resource reservation in
rotator setup if possible.

Change-Id: I223281fb51b81baf852cac415a8c61c0de35c2c4
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
msm: mdss: Fix under run on interlace clip play in landscape

Rotator src rect y co-ordinate is getting odd after de-interlace
calculation but mdss expects even.

Change-Id: I124d059c89c51126208ad1de02a9d34d87b0f553
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>
msm: mdss: Add commit handler to writeback display

Add support for a "vsync handler" for writeback displays to be able to
schedule tasks to be run as soon as the frame has completed.

Change-Id: I8c6945a6e914e307de67b2ec6df25f4509a50da7
Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>
Signed-off-by: Sree Sesha Aravind Vadrevu <svadrevu@codeaurora.org>
Signed-off-by: Pravin Tamkhane <pravint@codeaurora.org>
Signed-off-by: Ping Li <quicpingli@codeaurora.org>
msm: mdss: Call wait4comp after commit for wb intf

Writeback path uses the comp event allocated on
stack to wait for ISR done. It crashes if
ISR tries to set the comp event after kickoff
thread timeout. This change removes the comp
event usage for writeback interface and starts
to use the wait4comp API like video/command
mode interfaces.

CRs-fixed: 555036
Change-Id: I74994a0cbe4039c6d3d4a51d573d343751182bff
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
msm: mdss:  Set rotator output format as pseudo planar 420

Set rotator output format for planar 420 as pseudo planar 420.
Configure BWC output format as MDP_Y_CRCB_H2V2 when
input color format is MDP_Y_CBCR_H2V2.

CRs-Fixed: 549326 552372 552375
Change-Id: I9c39ab3d8a867909853ffd6ecc2120ab160914d1
Signed-off-by: Pawan Kumar <pavaku@codeaurora.org>
video: mdss: Clean up rotator merge

Change-Id: I1195281c0e8cf5f2be5fcd9232c2e68dfc6ad63f
mmc: core: do not reinsert prepeared FUA and FLUSH requests in stop flow

When mmc context has unblocked from waiting current request because of
urgent request notification coming from block layer, there is prepeared
request.  In the case, when the request is REQ_FUA or REQ_FLUSH, the
flow should not reinsert it back to i/o scheduler (since according to
block layer logic flush requests with data should never enter elevator).
Instead this request starts immediately.

Change-Id: Ia78b56c6135dd1a8d75a98fd5b771a5035e5c360
Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org>
mmc: core: Hold host resume status while card rescan is in progress

In case if a removable card is hot-plugged when the card and host
are runtime suspended then the mmc_rescan() tries to detect the card
status and removes the bus_ops. During card removal the Linux device
model calls pm_runtime_remove() of the corresponding "card" device,
which not only marks the device as suspended but also notifies the
parent so that it can be suspended if there are no children that are
holding resume. In case if the runtime suspend work of host is scheduled
before bus_ops are marked NULL in mmc_rescan(), the runtime suspend
of host fails with -ENOMEDIUM error. This error makes runtime PM framework
to permanently mark the host device in error and further runtime PM
operations are disallowed even when the card is re-inserted.

CRs-Fixed: 593475
Change-Id: Ie5e09f05ef26098c561b0c64b3954962d9d4c039
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
usb: core: Limit HCD old enumeration scheme request to root ports

HCD_OLD_ENUM HCD flag is introduced to use old (or short) enumeration
scheme for the devices attached on the corresponding USB bus. The old
enumeration scheme is used by the MSM HSIC controller to avoid multiple
reset during enumeration. This is useful when a known device is attached
to the USB bus, which is the case with MSM HSIC. When a HSIC HUB is
connected, any device can be connected on the HSIC USB bus. The new
enumeration scheme supports wide variety of USB devices. Hence limit
the old enumeration scheme request of a HCD to only root ports.

Change-Id: I6035c2a766787819eb8d0e1fa774e0c79d6e958b
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
iommu: msm: Add call to set maximum mapped size

In some cases, the secure world needs a hint as to the maximum
amount of memory that will ever be mapped. This is necessary to
optimize data structures in the secure world. Add a call to the
secure world to indicate the maximum mapped size.

Change-Id: I8d07ec2288e37057ff96777c96ed0680f75185f3
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
USB: dwc3: Fix compilation error when debugfs is disabled

The code does not compile with debugfs disabled. Fix this.

Change-Id: I19b784495b57e7fc0c57b455dd80a63b79177569
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
msm: mdss: Set correct flush bit for writeback mixer.

Wrong flush bit is being set for writeback mixer which can cause
MDP hang/unexpected behaviour when the mixer is used in line mode.
This patch addresses the issue by setting the correct flush bit.

Change-Id: Ie0c2ee27b1f466164a8fb84f7daae9309b74d1d8
Signed-off-by: Vishnuvardhan Prodduturi <vproddut@codeaurora.org>
msm: kgsl: Fix range checking for profile wrapping

There is a chance that the profile code will not wrap correctly.
This can cause the in stream profiling to cause buffer pre-run
or undershoot (accessing data before the buffer). Fix logic to
cause the correct wrapping.

Change-Id: I9aa68228ff5be1bd26ee1cf1a486859346a8027f
CRs-Fixed: 585754
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
mdss: Avoid panel ON commands during boot up for command mode

In command mode, when continuous splash is enabled, we do not
send the panel OFF commands through the SPLASH_BEGIN callback.
Avoid the SPLASH_FINISH callback also for command mode since
panel ON commands are not required to be sent. This avoids
unnecessary warnings during boot up.

Change-Id: Ifc249f259655045ecd799b57e1efb964238c504a
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>
msm: vidc: fix memory leak issue in dynamic buffer mode

While flushing output buffers held in v4l2 video
driver, i.e, with ref count equal to 2, the driver
was freeing the binfo structure. This would leak
the mapped output buffer memory. By avoiding
freeing of the binfo structure, the driver waits
for the release reference event from the firmware
to free and unmap the output buffer. Also move
initialization of dequeued flag for buffers to be
held in driver, till the time we queue this buffer
to firmware. By not doing so, the video driver can
enter a race condition, whereby, a output buffer could
be unmapped and freed before v4l2 client has called
dequeue on the buffer.

Change-Id: Ic95f13b9f4426574012539a76c0b87bedb8e805a
Signed-off-by: Arun Menon <avmenon@codeaurora.org>