input: synaptics_i2c_rmi4: Add low power mode

Enable regulators to go into low power mode when
device enters suspend, to save power.  In resume,
return regulators to full power.

Change-Id: I6f5a6d398732b2e23aeba81b3569ae2c081f31e5
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
input: synaptics_i2c_rmi4: allocate memory for interrupt status

In synaptics_rmi4_i2c_read, intr_status is a char variant.  So
if num_of_intr_regs > 1, then intr_status will write 2 bytes.  This
will destroy the stack, so avoid it.

Change-Id: I5c16e491a84d3f8dd96a11810c060944a457b99a
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
input: synaptics_fw_update: Add firmware ID reading

- Fix issue of converting config id
- Support "Option 1 (bit0)" in image file header
  -- Query firmware build id from image file header

Change-Id: Iabd24d662762b67de7163ad7321f95f1c58f1459
Git-commit: 7e811dcd8eaf3fc0df765335d0ef14926f325f64
Git-repo: git://github.com/synaptics-touch/synaptics-dsx-i2c.git
[amaloche@codeaurora.org: only portion of patch taken.
 Custom changes were necessary to add for integration
 with mainline]
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
input: synaptics_fw_update: Add force update entry

Add sysfs entry option to force update firmware, regardless
of versioning.

Change-Id: I85a12c531ee3d64a74da272b6e73b514eafc136a
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
msm: msm_bus: Correct the return value from register-client

On failure, return 0, and not a non-zero value as that can
be interpreted as a valid client ID.

CRs-Fixed: 486328
Change-Id: I7a5b448bc398b4a4792170147a5e5317d25f8b3c
Signed-off-by: Gagan Mac <gmac@codeaurora.org>
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
input: synaptics_i2c_rmi4: Properly enter low power mode

When entering low power mode, i2c pull up regulator
must be set with LPM current, not active current.

Change-Id: Idc87cd57b8a4f75b665d3045123176b158b16691
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
arm: board-8930: Add synaptics firmware name in platform data

Add synaptics firmware name in platform data

Change-Id: I011144acc82f4fca25b9d40e05a3850117001230
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>
msm: camera: Optimize the live snapshot state machine

Send the ack for live snapshot done event once its
completed instead of waiting for stop request from
user. This helps in saving a wait time which could
be upto 2 frame time in worst case

Change-Id: Ibbef211512e4b9f06ff6b8d3ca52d1dc591c0b46
Signed-off-by: Nishant Pandit <npandit@codeaurora.org>
Merge tag 'AU_LINUX_ANDROID_JB_2.5.04.02.02.040.351' of git://codeaurora.org/kernel/msm into cm-10.1

AU_LINUX_ANDROID_JB_2.5.04.02.02.040.351 based on quic/aosp/jb_2.5

Change-Id: I3d6e49f4e722ce0377af7c89cb3e35dce352d64e
Revert "Revert "ASoC: msm: Support independent left-right channel volume control""

This reverts commit 662675fe2fe42d6e0a4c66bebaf61cdca60c56bb.
workqueue: don't use WQ_HIGHPRI for unbound workqueues

Unbound wqs aren't concurrency-managed and try to execute work items
as soon as possible.  This is currently achieved by implicitly setting
%WQ_HIGHPRI on all unbound workqueues; however, WQ_HIGHPRI
implementation is about to be restructured and this usage won't be
valid anymore.

Add an explicit chain-wakeup path for unbound workqueues in
process_one_work() instead of piggy backing on %WQ_HIGHPRI.

Change-Id: Iecd17a9935ee28f856d8b726bb4c296762922bed
Signed-off-by: Tejun Heo <tj@kernel.org>
Git-commit: 974271c485a4d8bb801decc616748f90aafb07ec
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
workqueue: factor out worker_pool from global_cwq

Move worklist and all worker management fields from global_cwq into
the new struct worker_pool.  worker_pool points back to the containing
gcwq.  worker and cpu_workqueue_struct are updated to point to
worker_pool instead of gcwq too.

This change is mechanical and doesn't introduce any functional
difference other than rearranging of fields and an added level of
indirection in some places.  This is to prepare for multiple pools per
gcwq.

v2: Comment typo fixes as suggested by Namhyung.

Change-Id: Iefae84798c2af580f425b92ed79117935d99f21f
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Git-commit: bd7bdd43dcb81bb08240b9401b36a104f77dc135
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
workqueue: use @pool instead of @gcwq or @cpu where applicable

Modify all functions which deal with per-pool properties to pass
around @pool instead of @gcwq or @cpu.

The changes in this patch are mechanical and don't caues any
functional difference.  This is to prepare for multiple pools per
gcwq.

Change-Id: I4be6727e1cce6f9aa2a0057b96bdc725c84f1ea8
Signed-off-by: Tejun Heo <tj@kernel.org>
Git-commit: 63d95a9150ee3bbd4117fcd609dee40313b454d9
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
workqueue: separate out worker_pool flags

GCWQ_MANAGE_WORKERS, GCWQ_MANAGING_WORKERS and GCWQ_HIGHPRI_PENDING
are per-pool properties.  Add worker_pool->flags and make the above
three flags per-pool flags.

The changes in this patch are mechanical and don't caues any
functional difference.  This is to prepare for multiple pools per
gcwq.

Change-Id: I1824fd1c509d8ac6b0619536621a22b15b316256
Signed-off-by: Tejun Heo <tj@kernel.org>
Git-commit: 11ebea50dbc1ade5994b2c838a096078d4c02399
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
workqueue: introduce NR_WORKER_POOLS and for_each_worker_pool()

Introduce NR_WORKER_POOLS and for_each_worker_pool() and convert code
paths which need to manipulate all pools in a gcwq to use them.
NR_WORKER_POOLS is currently one and for_each_worker_pool() iterates
over only @gcwq->pool.

Note that nr_running is per-pool property and converted to an array
with NR_WORKER_POOLS elements and renamed to pool_nr_running.  Note
that get_pool_nr_running() currently assumes 0 index.  The next patch
will make use of non-zero index.

The changes in this patch are mechanical and don't caues any
functional difference.  This is to prepare for multiple pools per
gcwq.

v2: nr_running indexing bug in get_pool_nr_running() fixed.

v3: Pointer to array is stupid.  Don't use it in get_pool_nr_running()
    as suggested by Linus.

Change-Id: I46e9488601d764d25e4a6c707de129ab68f7064c
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: 4ce62e9e30cacc26885cab133ad1de358dd79f21
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
workqueue: reimplement WQ_HIGHPRI using a separate worker_pool

WQ_HIGHPRI was implemented by queueing highpri work items at the head
of the global worklist.  Other than queueing at the head, they weren't
handled differently; unfortunately, this could lead to execution
latency of a few seconds on heavily loaded systems.

Now that workqueue code has been updated to deal with multiple
worker_pools per global_cwq, this patch reimplements WQ_HIGHPRI using
a separate worker_pool.  NR_WORKER_POOLS is bumped to two and
gcwq->pools[0] is used for normal pri work items and ->pools[1] for
highpri.  Highpri workers get -20 nice level and has 'H' suffix in
their names.  Note that this change increases the number of kworkers
per cpu.

POOL_HIGHPRI_PENDING, pool_determine_ins_pos() and highpri chain
wakeup code in process_one_work() are no longer used and removed.

This allows proper prioritization of highpri work items and removes
high execution latency of highpri work items.

v2: nr_running indexing bug in get_pool_nr_running() fixed.

v3: Refreshed for the get_pool_nr_running() update in the previous
    patch.

Change-Id: Id843c0a425f51f84083786fbf413d999d35771b7
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Josh Hunt <joshhunt00@gmail.com>
LKML-Reference: <CAKA=qzaHqwZ8eqpLNFjxnO2fX-tgAOjmpvxgBFjv6dJeQaOW1w@mail.gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Git-commit: 3270476a6c0ce322354df8679652f060d66526dc
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
msm: rpm-smd: Configure WQ for higer priority

When the workqueue runs at a lower priority, it gets starved by higher
priority threads. Bump the WQ priority to high to ensure rpm smd work
queue gets a fair chance

Change-Id: I06b864611cf45afe6931d6030327806032894663
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
msm: cpufreq: Configure WQ for higer priority

When the workqueue runs at a lower priority, it gets starved by higher
priority threads. Bump the WQ priority to high to ensure cpufreq work
queue gets a fair scheduling chance

Change-Id: I9e994da94a347dceb884e72ec3dd3da468a4471d
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
sched: fix reference to wrong cfs_rq

Commit 7db16c8c (sched: Fix SCHED_HRTICK bug leading to late preemption
of tasks) introduced a bug in sched_slice() calculation by using wrong
cfs_rq for tasks. rq->cfs was incorrectly used as task's cfs_rq, rather
than the correct one to which they belonged.

Fix the bug by using correct cfs_rq for tasks.

Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
block: Remove "requeuing urgent req" error messages

It is possible for URGENT request to be requeued/reinserted if it was
fetched during the creation of a packed list. This end case is rare and is
not handled at the moment.
This patch changes the messages notifying of the above to debug level
(instead of error) in order to clear the dmesg log.

Change-Id: Ie8bc067e61559a6f702077b95c5dbcc426404232
Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>