msm: vidc: add input parameter checks to exported functions

Check for invalid null parameter passed to functions

CRs-Fixed: 606467
Change-Id: I860ca3d69d8705c7b3d6f27f9504b567be5aeea3
Signed-off-by: Jorge Solano Altamirano <jsolano@codeaurora.org>
msm: subsystem_restart: Add notification to indicate powerup failure

Currently, if powering on a subsystem during restart fails, a
kernel panic is trigerred immediately.
Instead, send a 'powerup failure' notification to the drivers
that have registered for notifications regarding the subsystem.
The drivers can then do the necessary cleanup/logging before a
kernel panic is triggered.

Change-Id: I252f221ee009436b7075c203b2a3de45e395c1b0
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
msm: ssr: Send notification during a cold boot failure

Currently, when powering on a subsystem during cold boot fails,
the drivers that have registered for notifications about the
subsystem are not intimated.
Send the 'powerup failure' notification to these drivers to give
them an opportunity to do the necessary cleanup/logging at their
end before the subsystem is shutdown.

Change-Id: I09c10d5ead7dc153ed3ce3caf8f1c3442a66eb96
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
wcnss: Log debug registers when receives certain notification

If powering on a subsystem during restart fails, SSR framework will send
a "powerup failure" notification to the subsystem. Add the support that
WCNSS platform driver will register to listen the notifications and if
receives "powerup failure" notification, it will log the debug registers.

Change-Id: I0ae8a5ee96122d71c7a86711044f6b07e400b62c
Signed-off-by: Yue Ma <yuem@codeaurora.org>
wcnss: add API to check if wcnss is undergoing an SSR

Wlan driver should not read registers from wcnss or
try to communicate with the chip when it is undergoing
a subsystem-restart. Added an API with the wcnss platform
driver to check if ssr is in progress, this API will be
used by the wlan driver to protect register access and
other prohibited operations.

Change-Id: Ia0d93e774af126d84dbaabf5c36a2c90fdbd58be
CRs-Fixed: 621974
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
msm: mdss: move MDSS revision macros to /linux/msm_mdp.h

Currently kernel driver and user mode libraries keep their own
copies of HW revision numbers. This strategy is prone to errors
and usually frowned upon. Fix this by moving revision information
to sanitized header which is shared by kernel drivers and user mode
libraries.

Change-Id: I59d1256ffd98e07f4ef9ae2b534f04b67abd2119
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
msm: mdss: MDP clock optimization for single layer video playback

MDP core clock bumping is not required for single layer video
playback in 8x26 targets. Hence add revision check to avoid fudge
factor.

Change-Id: I1b0ccb4ef50514f705845b0218fa6ca0d28c1779
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
msm: mdss: Fix mdp clock rate assignment when apply fudge is false

When apply fudge is false, currently mdp clock rate can take
garbage values, hence assign the calculated clock rate without
applying any fudge factors.

Change-Id: I7c9d34024ab94b05160b50560ab136c0c8b7781d
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
msm: vidc: rewrite v4l2 cluster construction

V4L2 framework has limitation of not supporting
same control in multiple clusters. Overcome this
limitation by grouping all controls in to one
super cluster.

Change-Id: I974199e1388a1b33ae5e56edd4b0af712eb9babf
Signed-off-by: Arun Menon <avmenon@codeaurora.org>
ASoC: msm: qdsp6v2: Add check for NULL dereference

The asm loopback during close does not check
for NULL before closing the playback and capture
instances. The change ensures only the valid
playback/capture instances are closed.

CRs-Fixed: 643724
Change-Id: I3373f62a2413e1497b6f8a401158444cd2870b2a
Signed-off-by: Aravind Kumar <akumark@codeaurora.org>
msm: kgsl: Fix spinlock recursion in destroy pagetable

pagetable list is protected by ptlock. Few functions
while iterating over a pagetable list takes same ptlock,
kgsl_destroy_pagetable() also need same lock. This will
cause spinlock recursion if kgsl_destroy_pagetable()
called while iterating over a list. Created two versions
of same function one is with lock and other is without
lock.

CRs-Fixed: 621172
Change-Id: I61440f99022fce8629a57bb5661e2eef9613187b
Signed-off-by: Prakash Kamliya <pkamliya@codeaurora.org>
power: core: add set_voltage_limit API

Add the power_supply_set_voltage_limit API which
allows the POWER_SUPPLY_PROP_VOLTAGE_MAX property
to be configured for a given power supply.

CRs-Fixed: 637169
Change-Id: Ib525366ff742ad31d81ffee75920c19a6f9e8de8
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
power: qpnp-charger: take into account charge path priority

On the SMBB peripheral there is a possibility of having
both the USB and DC input being connected at the same time.
In this situation there is a requirement to be able to communicate
to userspace services that the higher priority input was
inserted so appropriate action can be taken.

This is achieved as follows:

1. If DC has the higher priority, the USB input
current limit will be reduced to 100 mA to avoid
charging from the USB path.

2. If USB has priority the DC input current
limit will be reduced to 100 mA to avoid charging
from the DC path.

3. Upon the removal of the priority charge path
the secondary charge path input current limit
will be restored to allow charging.

CRs-Fixed: 637169
Change-Id: Id5b61103b9f1d8f32ffd707d2512972c1a310108
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
msm: Do Vfe hard reset in streamoff

In VFE immediate stop, we need to hard reset the
VFE to stop all write masters.

Change-Id: Ie2c27a060f83906ba37d7f26249e84bc1395277d
Signed-off-by: Abhishek Kondaveeti <akondave@codeaurora.org>
ARM: dts: msm: Add batt-pres-status node to MSM QPNP-BMS devices

Add the bat_pres_status nodes to the qpnp-bms device node in order to
know whether the battery has been removed when the device is powered
off.

Change-Id: I2b71d9c8380a87b3f5b9871d5e42ba3e483cab05
Signed-off-by: Xiaozhe Shi <xiaozhes@codeaurora.org>
msm: mdp3: underflow color adjust support on 8x10

This adds the underflow color adjustment support on
8x10. Customer can order underflow color by modifying
the parameter in panel device tree.

Change-Id: I0660f35e3a0052e5a995256978f354cf30e76161
Signed-off-by: Shuo Yan <shuoy@codeaurora.org>
ksm: Provide support to use deferred timers for scanner thread

KSM thread to scan pages is getting schedule on definite timeout.
That wakes up CPU from idle state and hence may affect the power
consumption. Provide an optional support to use deferred timer
which suites low-power use-cases.

To enable deferred timers,
$ echo 1 > /sys/kernel/mm/ksm/deferred_timer

Change-Id: I07fe199f97fe1f72f9a9e1b0b757a3ac533719e8
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
msm: mdss: fix race condition between shutdown thread and fb ioctl

Currently all entires into fb driver are synchronized with shutdown
context except fb ioctl context. fb ioctl is an asynchronous entry to
fb driver which can be called simultaneously from two different user
processes. Synchronize these fb ioctls and shutdown context to prevent
race condition.

Change-Id: I81ce48159fce69caabc3336d70df2bd15c4ee44b
CRs-Fixed: 640199
Signed-off-by: Ujwal Patel <ujwalp@codeaurora.org>
Merge "msm: mdp3: underflow color adjust support on 8x10"
ARM: dts: msm: Increase the drive strengths for MSM8926

With the 10mA random CRC issues are seen on SD card.
Raise the drive strength to 16mA address this.

CRs-Fixed: 641618
Change-Id: If73c175ed50bfb220b9a8a3f018e5c71126fca1d
Signed-off-by: Pratibhasagar V <pratibha@codeaurora.org>