When executing the code "git show-ref -s --abbrev --tags $tag" and the
output spans multiple lines, it results in generation of a directory
in the kernel objects causing build failure.

Ex:

$ git show-ref -s --abbrev --tags LNX.LA.3.2-00520-8x26
04163f5
04163f5

Results in:

"ln: target `04163f5-00951-g2403ab9/source' is not a directory"

Fix this by pruning anything after the first line of output.

Change-Id: Iebe1e6fa88951ec0f1dab383adeb6faa72872295
Signed-off-by: Jason Hrycay <jason.hrycay@motorola.com>

For RGB 666 panel format on DSI, a change has been made earlier to set the
alignment to MSB. This was causing color corruption on EDP panel as it
requires LSB alignment. This fix is to set the MSB alignment for RGB666
format only on DSI panels, so that it doesn't affect EDP.

Change-Id: If07b915bb30b00ff1824c7c662bbf4db8a217a6b
Signed-off-by: Vineet Bajaj <vbajaj@codeaurora.org>

The tile control parameter is used by the Assertive Display
block to control merged mode or independent mode AD for
dual-pipe AD. However, in single pipe AD, the tile control
should always be set to zero.

Change-Id: I0dd3c3b716fd5156d9a0f9206911159d186fd9c7
Signed-off-by: Benet Clark <benetc@codeaurora.org>
Signed-off-by: Ping Li <quicpingli@codeaurora.org>

Power on HPD accesses HDMI registers. HDMI AHB clock needs to be
enabled while HPD is being powered on.

Change-Id: I483ac56b41e3bd3794878940fbd0d5242dd5d1cd
Signed-off-by: Casey Piper <cpiper@codeaurora.org>

Currently for RGB666 format, the MDP output is set as LSB aligned
and banding artifacts are observed due to this. Set the MDP output
to be MSB aligned to avoid these artifacts and for the display
to show up fine with RGB666 format.

Change-Id: Id8b7bf03218dd0ea70ada34912afd092e239b89f
Signed-off-by: Padmanabhan Komanduru <pkomandu@codeaurora.org>

Add support to check ESD status by register read for
DSI-v2 based platforms.

Change-Id: I013d31c67b3e5c61b7723ecb234be06c2fd5a451
Signed-off-by: Sandeep Panda <spanda@codeaurora.org>
Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org>

While calculating source and destination rect of a pipe for the
programmed ROI, consider FLIP flags set for the pipe.

Change-Id: I631453c26f443b08a23556f83195d9914e05b41d
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>

Some video mode panels need to have the command mode
operation interleaved on the last line of the video stream.
Add support to enable this register via a panel dtsi property.

Change-Id: I3dfe36816d7602da4f66d09ea23ac9c6185f9858
Signed-off-by: Siddhartha Agrawal <agrawals@codeaurora.org>

The short response can be <=2 bytes.

Change-Id: Iad322bc892ea29b2acf220ef579d18dea1a91c32
Signed-off-by: Terence Hampson <thampson@codeaurora.org>

When ppp hw is performing csc from yuv to rgb there is a color
swap. In order to account for this we need to swap the unpack
and packing order.

Change-Id: I55df9a87300f3ce2c9bf5352725f3ce1d2b1b8a4
Signed-off-by: Terence Hampson <thampson@codeaurora.org>

Calibration tool should have register access on all layer
mixers connected to DSPP pipe and WB path. It should
also have control layer register access to read
the current layer mixer configuration.

Change-Id: If2cc86c2e6f470e090746a400b16cb540948c3e9
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>

Turn off the backlight while shut down panel as it
could show white flicker depending on the panel.

Change-Id: Ic5d4e97e70c87e5b6e956e27a766136610d6f345
Signed-off-by: Shuo Yan <shuoy@codeaurora.org>

At the time of dsi interrupt handler registration, there may be
a pending dsi interrupt. This can cause a dead-lock, as dsi clocks
and resources are not initialized properly yet.

Change-Id: I511d0776f5d7b500f0f32f2ae9d92ac031f8e613
Signed-off-by: Xiaoming Zhou <zhoux@codeaurora.org>

commit 72c04af9a2d57b7945cf3de8e71461bd80695d50 upstream.

When using the MERAM the LCDC line size needs to be programmed with a
MERAM-specific value different than the real frame buffer pitch. Fix it.
Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit d8636a2717bb3da2a7ce2154bf08de90bb8c87b0 upstream.

So we've had a fair few reports of fbcon handover breakage between
efi/vesafb and i915 surface recently, so I dedicated a couple of
days to finding the problem.

Essentially the last thing we saw was the conflicting framebuffer
message and that was all.

So after much tracing with direct netconsole writes (printks
under console_lock not so useful), I think I found the race.

Thread A (driver load)    Thread B (timer thread)
  unbind_con_driver ->              |
  bind_con_driver ->                |
  vc->vc_sw->con_deinit ->          |
  fbcon_deinit ->                   |
  console_lock()                    |
      |                             |
      |                       fbcon_flashcursor timer fires
      |                       console_lock() <- blocked for A
      |
      |
fbcon_del_cursor_timer ->
  del_timer_sync
  (BOOM)

Of course because all of this is under the console lock,
we never see anything, also since we also just unbound the active
console guess what we never see anything.

Hopefully this fixes the problem for anyone seeing vesafb->kms
driver handoff.

v1.1: add comment suggestion from Alan.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Tested-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

MDSS DSI driver currently programs certain DSI PLL registers as
part of the DSI PHY off sequence. This is incorrect and could
lead to some unexpected errors such as DSI PLL getting turned off
while the branch clocks are still on. Fix this by removing all
such register programming.

Change-Id: Ie1e88cd18de6b8ef8804f7a2b34b8b8282166c96
CRs-Fixed: 509801
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>

This makes sure that the userspace correctly interprets the end
of the vsync timestamp.

CRs-Fixed: 639039
Change-Id: I8a0810283a42a9c39a3c8fe36b862bbfd3ecdbea
Signed-off-by: Shivaraj Shetty <shivaraj@codeaurora.org>

commit 7c4eaca4162d0b5ad4fb39f974d7ffd71b9daa09 upstream.
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The only remaining users of the client->handles rbtree are
iterating through it like a list.  Keep the rbtree, but change
its index to be the buffer address instead of the handle address,
which makes ion_handle_lookup a fast rbtree search.

Change-Id: Ie7d974b3a5d9831c0d664de85ddae8db3c3abdf9
Signed-off-by: Colin Cross <ccross@android.com>

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>

Dump snapshot when long IB timeout is detected. The GPU
command processor is halted on long IB timeout detection,
this will halt the GPU pipeline, dumping the snapshot at
this point is safe and gives us information to debug
long IB timeout.

Change-Id: I51bb73b66e11c3b6945c3dfe92af03e21e3c0e62
Signed-off-by: Tarun Karra <tkarra@codeaurora.org>

Add commands to flush the GPU UCHE when a new context submits
commands to GPU. The ensures that the new context does not use
stale data present in UCHE.

CRs-Fixed: 607976
Change-Id: I123a323be5f3fb9d1f9f96fed5bb68b8d0d27d76
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>

commit 5b39939a4 (nohz: Move ts->idle_calls incrementation into strict
idle logic) moved code out of tick_nohz_stop_sched_tick() and missed
to bail out when the cpu is offline. That's causing subsequent
failures as an offline CPU is supposed to die and not to fiddle with
nohz magic.

Return false in can_stop_idle_tick() if the cpu is offline.

Change-Id: I635b765ae5dc2f4e81a38dff21dc8631fca73c49
Reported-and-tested-by: Jiri Kosina <jkosina@suse.cz>
Reported-and-tested-by: Prarit Bhargava <prarit@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1305132138160.2863@ionos

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[zwliew: Backport to 3.4]
Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>

We are not using it

Check the whether partial update feature is enabled or not before enabling
any post processing features.

Change-Id: Ibf2111d5ca8714279903980d14e63bab556bb41f
Signed-off-by: Ping Li <quicpingli@codeaurora.org>

According to the specification of AEAD, AEAD request crypt length is
not a fixed maximum and associated length is also same. This could
lead to potential integer overflow, thus allocating less memory. So
we need to check potential integer overflow on AEAD request length.

CRs-Fixed: 726872
Change-Id: Ie7708000bfd8c57e2fba8e02230a7ce9cdc9634c
Signed-off-by: William Clark <wclark@codeaurora.org>

Fix a typo that was comparing the width instead of the height
parameter that lead to black stripe flickering when scrolling on
browser.

Change-Id: I10e57f876458f46d445b3404d09a5e7606aeb666
Signed-off-by: Vinu Deokaran <vinud@codeaurora.org>

Add support for invalidating a key - which renders it immediately invisible to
further searches and causes the garbage collector to immediately wake up,
remove it from keyrings and then destroy it when it's no longer referenced.

It's better not to do this with keyctl_revoke() as that marks the key to start
returning -EKEYREVOKED to searches when what is actually desired is to have the
key refetched.

To invalidate a key the caller must be granted SEARCH permission by the key.
This may be too strict.  It may be better to also permit invalidation if the
caller has any of READ, WRITE or SETATTR permission.

The primary use for this is to evict keys that are cached in special keyrings,
such as the DNS resolver or an ID mapper.

Change-Id: I923ea0f0b8f9d6b3ff8ec8beca77b1774984f1c3
Signed-off-by: David Howells <dhowells@redhat.com>

Make use of the previous patch that makes the garbage collector perform RCU
synchronisation before destroying defunct keys.  Key pointers can now be
replaced in-place without creating a new keyring payload and replacing the
whole thing as the discarded keys will not be destroyed until all currently
held RCU read locks are released.

If the keyring payload space needs to be expanded or contracted, then a
replacement will still need allocating, and the original will still have to be
freed by RCU.

Change-Id: I6c4f784f120951fb51ac9c23856ea37f51770bb9
Signed-off-by: David Howells <dhowells@redhat.com>

Commit bd9474e059bbb2bb62f7e93894cfc3d3ba473fb2 (cpufreq_stats:
Adds the fucntionality to load current values for each frequency
for all the cores) introduced a change by which
'cpufreq_allstats_create' gets called at initialization (from
'cpufreq_stats_init' instead of 'cpufreq_stat_notifier_policy').
This causes 'cpufreq_allstate_create' to be called before the
freq_table is allocated from 'create_all_freq_table'. Due to
this, the data for cpu's which are online at boot are not
added to the 'all_freq_table' leading to the incorrect
reporting of data when the below sysfs command is run -
'cat sys/devices/system/cpu/cpufreq/all_time_in_state'.

Correct this behaviour by altering the cpufreq_stats init
sequence by which the memory for 'all_freq_table' is allocated
before the 'cpufreq_allstats_create' function is called.

Change-Id: I2232dacdc0deec4d1987c418e833fe28f74623fc
Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org>
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

Currently, when dynamically placing regions CMA will allow the memory
to be placed anywhere, including highmem. Due to system restrictions,
regions may need to be placed in a smaller range. Add support to
devicetree to allow these regions to have an upper bound on where they
will be placed.

Change-Id: Ib4ae194cbb6389e1091e7e04cfd331e9ab67ad05
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
[skhiani@codeaurora.org: Resolve merge conflicts]
Signed-off-by: Susheel Khiani <skhiani@codeaurora.org>

This reverts commit abdc7b3d.

This reverts commit 564ebe5c.

This reverts commit e03742da.

When sync does it's WB_SYNC_ALL writeback, it issues data Io and
then immediately waits for IO completion. This is done in the
context of the flusher thread, and hence completely ties up the
flusher thread for the backing device until all the dirty inodes
have been synced. On filesystems that are dirtying inodes constantly
and quickly, this means the flusher thread can be tied up for
minutes per sync call and hence badly affect system level write IO
performance as the page cache cannot be cleaned quickly.

We already have a wait loop for IO completion for sync(2), so cut
this out of the flusher thread and delegate it to wait_sb_inodes().
Hence we can do rapid IO submission, and then wait for it all to
complete.

Effect of sync on fsmark before the patch:

FSUse%        Count         Size    Files/sec     App Overhead
.....
     0       640000         4096      35154.6          1026984
     0       720000         4096      36740.3          1023844
     0       800000         4096      36184.6           916599
     0       880000         4096       1282.7          1054367
     0       960000         4096       3951.3           918773
     0      1040000         4096      40646.2           996448
     0      1120000         4096      43610.1           895647
     0      1200000         4096      40333.1           921048

And a single sync pass took:

  real    0m52.407s
  user    0m0.000s
  sys     0m0.090s

After the patch, there is no impact on fsmark results, and each
individual sync(2) operation run concurrently with the same fsmark
workload takes roughly 7s:

  real    0m6.930s
  user    0m0.000s
  sys     0m0.039s

IOWs, sync is 7-8x faster on a busy filesystem and does not have an
adverse impact on ongoing async data write operations.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Change-Id: I9e55d65f5ecb2305497711d4688f0647d9346035

In case when system contains no dirty pages, wakeup_flusher_threads()
will submit WB_SYNC_NONE writeback for 0 pages so wb_writeback() exits
immediately without doing anything. Thus sync(1) will write all the
dirty inodes from a WB_SYNC_ALL writeback pass which is slow.

Fix the problem by using get_nr_dirty_pages() in
wakeup_flusher_threads() instead of calculating number of dirty pages
manually. That function also takes number of dirty inodes into account.

Change-Id: I458027ae08d9a5a93202a7b97ace1f8da7a18a07
CC: stable@vger.kernel.org
Reported-by: Paul Taysom <taysom@chromium.org>
Signed-off-by: Jan Kara <jack@suse.cz>

Front camera in Thea P1B uses MCLK1 where as Thea P1A & Titan
Uses MCLK0. Providing a facility to introduce Overriding logic

Change-Id: Iac48eda90e7b74229d81d88991e7cce606c42f20
Signed-off-by: VijayKumar Gn <gxnf38@motorola.com>
Reviewed-on: http://gerrit.mot.com/663248

Tested-by: Jira Key <jirakey@motorola.com>
Reviewed-by: Sudharsan Yettapu <sudharsan.yettapu@motorola.com>
Reviewed-by: Jian-Jun Fan <stevenfan@motorola.com>
Reviewed-by: Christopher Fries <cfries@motorola.com>
SLTApproved: Christopher Fries <cfries@motorola.com>
Submit-Approved: Jira Key <jirakey@motorola.com>