msm: vidc: Memset and flush codec context buffers

This change will memset and flush the codec context
buffers for non-secure case to resolve video driver
timer expire issues.

Change-Id: I6669481da3076a392061868475fc9844f2c41064
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>
msm: bam_dmux: Fix potential memory leaks

Added code to fix potential memory leaks.

Change-Id: I76f92fc95539feee67600a6ab4a730bbb50643a1
Signed-off-by: Brent Hronik <bhronik@codeaurora.org>
msm: ipc_router: Fix potential leaks and null dereferences

Added null pointer checks to avoid potential null pointer dereferences
and free statements to avoid potential memory leaks

Change-Id: I0553dfe6c61260a700a9dc6a411dcec6483e0eb8
Signed-off-by: Brent Hronik <bhronik@codeaurora.org>
msm: ipc: Access pointers after a successful check

Some pointers in msm_ipc_router_extract_msg function are accessed either
before a NULL pointer check or if one of the conditions in the check is
true.

Fix the code to dereference those pointers only after the pointer is not
NULL and the other associated conditions are true.

CRs-Fixed: 471110
Change-Id: Ic45fe118818caa6985e5e56403ab3cc467174cf6
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
msm: watchdog: Add reboot/shutdown notifications to watchdog

On shutdown or reboot path, callee CPU waits for one second
in order for other CPUs to respond. However, this coincides
with watchdog pet to bark timeout value, which sometimes
results in unnecessary watchdog barks.

Since we are either shutting down or rebooting the machine
anyways, we might as well wait a bit longer for bark timeout.
This gives a better chance to a graceful shutdown or reboot the
system because their call-sites are race prone.

Change-Id: Ie82f16dcc7671ddc05bf6c6ea20aa71981607273
Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
mm: cma: remove watermark hacks

Commits 2139cbe627b8 ("cma: fix counting of isolated pages") and
d95ea5d18e69 ("cma: fix watermark checking") introduced a reliable
method of free page accounting when memory is being allocated from CMA
regions, so the workaround introduced earlier by commit 49f223a9cd96
("mm: trigger page reclaim in alloc_contig_range() to stabilise
watermarks") can be finally removed.

Change-Id: Iae17de8185eeabffd46752dbaf819591e6585869
CRs-Fixed: 480377
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mel Gorman <mel@csn.ul.ie>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: bc357f431c836c6631751e3ef7dfe7882394ad67
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[lauraa@codeaurora.org: Context fixup in mmzone.h, keep zone definition in
alloc_contig_range for other purposes]
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
mm: cma: fix accounting of CMA pages placed in high memory

The total number of low memory pages is determined as totalram_pages -
totalhigh_pages, so without this patch all CMA pageblocks placed in
highmem were accounted to low memory.

Change-Id: I10b78fa6a710828520a487b2fc2419b4f7521a6f
CRs-Fixed: 480377
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Git-commit: 41a7973447b0b8717f0a214d4328dc31ec2291d7
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
cpufreq: Resolve CPUFREQ_NOTIFY issue

When the cpufreq_stat receives the frequency policy notification,
it checks if the frequency table and stats table are present for the cpu.
If both are present, it returns with -EBUSY error to the notification.
Due to this, none of the other registered modules receive this
notification.

If the stat table and sysfs nodes are already created, return 0 instead
of returning EBUSY error.

Change-Id: I1fd4a46e6a65edfc6253c4271288f10912ae2ad7
Signed-off-by: Archana Sathyakumar <asathyak@codeaurora.org>
msm:rq_stats: Register for Cpufreq policy notification

Currently the load of the system is calculated using the max
frequency that is read during startup(It does not get updated
when the policy changes). As a result, the average load of the
system is incorrectly calculated and the system might not bring
the cpus online to manage the additional load. This
reduces the performance of the system.

To fix this issue, register rq_stats to receive cpufreq policy
notifications. Update the policy's max frequency when a
notification is received and use that value to calculate the load.

Change-Id: Icc78e28c736c170e198f723fd96c13dfb2dafe8a
Signed-off-by: Archana Sathyakumar <asathyak@codeaurora.org>
Signed-off-by: Anji Jonnala <anjir@codeaurora.org>
tty: n_smux: Add SMUX documentation

Add SMUX documentation that was missed when the initial
driver was added.

Change-Id: I5b23e451ff48d1eac05b22de3e5f0e017a6f7b0c
Signed-off-by: Eric Holmberg <eholmber@codeaurora.org>
msm: mdm: Disable panic on external mdm boot timeout

We now have the ability to not panic when we see a external modem has
not booted up within the expected timeframe. This functionality is
required in order to debug early bootup issues on the mdm's and is
configured via a sysfs flag.

Change-Id: Iac3bf980b239fdbe2ffdc8a5a25b875d47f0384c
Signed-off-by: Ameya Thakur <ameyat@codeaurora.org>
ASoC: msm: Support independent left-right channel volume control

The current volume sent to DSP is averaged between left and
right channels. As a result with volume level as zero on one
channel and non zero on the other channel results to playback on
both channels. Add support to send left and right volumes to DSP

Change-Id: Icc5f182d138c841607ea356ec37a7f78b4ba770d
CRs-Fixed: 449284
Signed-off-by: Subhash Chandra Bose Naripeddy <snariped@codeaurora.org>
Signed-off-by: Jay Wang <jaywang@codeaurora.org>
Merge "mm: cma: remove watermark hacks"
Merge "mm: cma: fix accounting of CMA pages placed in high memory"
Merge "msm: vidc: Memset and flush codec context buffers"
Merge "ASoC: msm: Support independent left-right channel volume control"
Merge "msm: watchdog: Add reboot/shutdown notifications to watchdog"
ASoC: msm8930: properly protect external mclk control function

Both audio path and MBHC accessory detection logic need master clock
enabled along with bandgap and clock block of CODEC. Clock control
is managed by the machine driver. Calls to clock control function from
audio and MBHC detection paths can be nested. As a result, reference
counter of master clock is incremen/decrement out of order and cause
master clock not enabled when audio path is enabled. Without master clock
CODEC will not consume data and this leads to SLIMBUS overflow error.

CRs-Fixed: 469683
Change-Id: Ib3a55f5d0b36ebe9ba345e7f18162a9314500df2
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
Merge "ASoC: msm8930: properly protect external mclk control function"
msm: board-8930: Add correct regulators for isa1200 chip

The regulators used by isa1200 in 8930 are differenet from
schematics. So, fix the regualtor entries for isa1200.

CRs-fixed: 473633
Change-Id: I4a8edd1428f93810b7216c4b4efb878c12820925
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>