msm: msm_fb: remove mmio access through mmap

Disable access to mm io and add
appropriate range checks to ensure valid accesses
through framebuffer mmap. This prevents illegal
access into memory.

CRs-Fixed: 474706
Change-Id: If25166f2732433ef967e99c716440030b567aae9
Signed-off-by: Manoj Rao <manojraj@codeaurora.org>
msm: kgsl: Insert kgsl idle for iommu-v1 when pagetables are changed.

An idle is needed for iommu-v1 before programming both tlb registers
and the pagetable register. Without this idle faults are observed on
2D core because a process uses another processes pagetable.

Change-Id: Ief14cd79b8e7ffaed413da49dc4b9e8416233186
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
defconfig: Enable IPSec related configuration

Configuration changes to enable IPSec tunnel/transport mode,
user configuration via "ip xfrm" commands and necessary crypto algorithms

Change-Id: Iadd773e2292cd804c8347c690490e0555f2d6a52
CRs-Fixed: 455801
Acked-by: Sireesh Gavini <sgavini@qti.qualcomm.com>
Signed-off-by: Sanket Khidkikar <sanketk@codeaurora.org>
msm: camera: Add NULL pointer check for regulator

To avoid potential crashes, Null pointer check is added
before regulator calls are made

Change-Id: I3c745ff0600971d07d10b7a537e6f2375a2bf4ab
Signed-off-by: Aditya Jonnalagadda <ajonnala@codeaurora.org>
ARM: mutex: use generic atomic_dec-based implementation for ARMv6+

Commit a76d7bd96d65 ("ARM: 7467/1: mutex: use generic xchg-based
implementation for ARMv6+") removed the barrier-less, ARM-specific
mutex implementation in favour of the generic xchg-based code.

Since then, a bug was uncovered in the xchg code when running on SMP
platforms, due to interactions between the locking paths and the
MUTEX_SPIN_ON_OWNER code. This was fixed in 0bce9c46bf3b ("mutex: place
lock in contended state after fastpath_lock failure"), however, the
atomic_dec-based mutex algorithm is now marginally more efficient for
ARM (~0.5% improvement in hackbench scores on dual A15).

This patch moves ARMv6+ platforms to the atomic_dec-based mutex code.

Change-Id: I5cb600b15f891dc692356322b38cae1d692a084c
Cc: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
msm: camera: Add null checks for stats module

Add null checks in stats driver before accessing the
data structures to avoid null pointer crash.

Change-Id: I87639848e94e69e3fa020344f936e7cc182e2c66
Signed-off-by: Nishant Pandit <npandit@codeaurora.org>
msm: kgsl: Add NULL check for next_event hook

KGSL driver needs to check that the function pointer
is not NULL before calling the hook. next_event
is an optional function not implemented by the 2d
core. This fix ensures that optional and unimplemented
function will not invoked by the driver.

Change-Id: I687b028260e3ec304d973c6a5bded0a8fdbfb73b
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
msm: mdp: Revert MDP Port split changes

Revert MDP changes to avoid bus overflow
seen in camera usecases.

Change-Id: I1c687750bd22c8f64ab28a500562cbfbcb6a6048
Signed-off-by: Kiran Kumar H N <hurlisal@codeaurora.org>
Signed-off-by: Praveen Ac <praveenac@codeaurora.org>
ASoC: msm: Fix wrong wait_event_timeout timeout checks

wait_event_timeout returns zero when there is a timeout.
Change fixes the condition check to handle timeouts.

Change-Id: I01184cce0c98a82bb205023b07dd4dd2d91b42ad
CRs-Fixed: 487821
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
msm: camera: fix bus vectors during client registeration.

Initializing correct bus vectors during client registeration
Signed-off-by: satyavaraprasad yerramsetti <satyav@codeaurora.org>

Change-Id: I59ca54d370a885ce0baf4a3795dfafa9fba070ec
Signed-off-by: satyavaraprasad yerramsetti <satyav@codeaurora.org>
msm: camera: Recovery through camif stop and overall reset.

Add recovery mechanism in case of bus overflow. As part of the
recovery, stop the CAMIF, reset the VFE and reload the AXI
write masters and then restore the IRQ settings to VFE.

Change-Id: Iba6576777f05135cc13c1ee0c9db764d35c7282a
Signed-off-by: Kevin Chan <ktchan@codeaurora.org>
Signed-off-by: Praveen Ac <praveenac@codeaurora.org>
Signed-off-by: Kiran Kumar H N <hurlisal@codeaurora.org>
msm: camera: Add recovery routine for live snapshot.

During live snapshot, if bus overflow happen, recovery routine will
kick in and reset the hardware. At this point, the live snapshot
might not be completed and application will continue to wait for
the snapshot to complete. This change adds the logic to restart
the snapshot process after recovery is completed.

Change-Id: I9ba0a27ce53eb008a4af8d65a3f37a7cded03559
Signed-off-by: Kevin Chan <ktchan@codeaurora.org>
Signed-off-by: Praveen Ac <praveenac@codeaurora.org>
Signed-off-by: Kiran Kumar H N <hurlisal@codeaurora.org>
msm: camera: Move halt logic in case of overflow to ISR.

Move the halt logic which includes AXI HALT and CAMIF Disable
to ISR to start the recovery mechanism sooner.
Add some protection in case of liveshot.

Change-Id: I28ec462474524c0064cd7ecd4f77801cd494e514
Signed-off-by: Kevin Chan <ktchan@codeaurora.org>
Signed-off-by: Praveen Ac <praveenac@codeaurora.org>
Signed-off-by: Kiran Kumar H N <hurlisal@codeaurora.org>
usb: gadget: u_data_hsic: Fix NULL pointer dereference

The port->in and port->out are reset to NULL during disconnect.  The
connect work checks these variables before allocating requests.  Store
port->in and port->out in local variables to free the already allocated
requests before returning.

CRs-Fixed: 488044
Change-Id: Idcdc98e4237b646934c90077a1d58990e853e344
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
msm: camera: fix antibanding issue on ov8825

Sensor driver settings are changed to make sure the fps is
not exactly 15 or 30 in zsl and non zsl modes in order to avoid
stationary bands

CRs-Fixed: 481736

Change-Id: Ie340967adb9cc56bd608aa8f2c2de9eceae91feb
Signed-off-by: Aditya Jonnalagadda <ajonnala@codeaurora.org>
msm: wcnss: Dump PMIC regulator contol registers

Dump PMIC registers which are related to WCNSS(RIVA)during the
WCNSS SSR or WDI timeout.  This  information helps to check PMIC
status during the SSR. This allows to debug multiple crash issues,
where WCNSS SSR dumps are insufficient to conclude why FIQ is not
reaching the WCNSS from HOST and why SPM is stuck.

Change-Id: Ibcd767c8832e2df268591e03da93ccf1bd819c68
CRs-fixed: 487483
Signed-off-by: Naresh Jayaram <njayar@codeaurora.org>
jbd2: fix assertion failure in jbd2_journal_flush()

The following race is possible between start_this_handle() and someone
calling jbd2_journal_flush().

Process A                              Process B
start_this_handle().
  if (journal->j_barrier_count) # false
  if (!journal->j_running_transaction) { #true
    read_unlock(&journal->j_state_lock);
                                       jbd2_journal_lock_updates()
                                       jbd2_journal_flush()
                                         write_lock(&journal->j_state_lock);
                                         if (journal->j_running_transaction) {
                                           # false
                                         ... wait for committing trans ...
                                         write_unlock(&journal->j_state_lock);
    ...
    write_lock(&journal->j_state_lock);
    if (!journal->j_running_transaction) { # true
      jbd2_get_transaction(journal, new_transaction);
    write_unlock(&journal->j_state_lock);
    goto repeat; # eventually blocks on j_barrier_count > 0
                                         ...
                                         J_ASSERT(!journal->j_running_transaction);
                                           # fails

We fix the race by rechecking j_barrier_count after reacquiring j_state_lock
in exclusive mode.

Reported-by: yjwsignal@empal.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org

CRs-Fixed: 468318
Change-Id: Ibe417ee5c50e257b7521b5ce8bbfa4e13547d4c5
Git-commit: d7961c7fa4d2e3c3f12be67e21ba8799b5a7238a
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Taniya Das <tdas@codeaurora.org>
ASoC: wcd9310: Fix to reduce the delay while recording

The current delay of 250ms is too long and can impact
several usecases which involve TX path. Reduce the delay
to 20ms as it is safe to do so. This delay was added to
ensure low voltage for a while before turning on micbias
for recording. Reason being, few headsets need voltage to
be ramped up from 0V to micbias to enable microphone.

CRs-Fixed: 486830
Change-Id: I6becfde379403115a77492754bae26c2fd1ba9cb
Signed-off-by: Simmi Pateriya <simmip@codeaurora.org>
spi_qsd: Add runtime PM support to SPI QSD driver

Enable and disable the clocks and gpios to the SPI controller
using runtime PM. This serves the dual purpose of reducing power
Consumption a little and letting the core know when the device is idle.

If runtime_pm is not supported, then make sure the device becomes
active in first transaction after system-suspend, instead of
system-resume.

CRs-Fixed: 460988
Change-Id: I2360b6f48491cd0e8e5f1ce54805079daf92e36b
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
ASoc: msm: Fix for pcm_read getting struck in alsa core.

Advance hardware pointer by period size even if the packet
coming from qdsp6 is of less size. QDSP6 sometimes
(for rapid device switches) gives packets worth less
than period size and this results in hw_ptr appl_ptr mismatch.

CRs-Fixed: 486276
CRs-Fixed: 488449
Change-Id: I893f9a52e4cd507fd72e4a7aba3c5fa76527d1bf
Signed-off-by: Sidipotu Ashok <sashok@codeaurora.org>