Some audio devices with two channels require the host
to issue SET_CUR command on the Volume control on
both the channels in order to function (playback or
record). Currently, the Linux Host driver issues SET_CUR
only for the 1st channel. Hence, add the quirk for
concerned devices for SET_CUR on 2nd channel.
Change-Id: I6f0bbcdfd3a8b3ccb33a1d56c252c701849a442f
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>
Disconnect ANC from RX when headphone plug is removed from the jack
to prevent any audible pop.
Change-Id: I7a3f6e876f8560580965762c7393c83833ef3b47
Signed-off-by: Meng Wang <mwang@codeaurora.org>
The acquiring of wakelock prevents the system from entering
suspend for high frequency non-wakeup sensor requests. With
the change IPCRTR now does not acquire a wakelock while cpu
is out of suspend. This allows the cpu to enter suspend.
The wakelocks are enabled in the suspend path so that future
wakeup capable sensor events gets handled without issues.
The wakelocks are disabled post resume from suspend.
This change affects only the data on the SLPI edge.
Change-Id: Iae3dafb735bfb0d3000487f2fa2216d68e9a026f
Signed-off-by: Ramakrishnan Ganesh <ramakris@codeaurora.org>
Add support for a custom hotplug event that is triggered when the
status of the connector has changed. The event string of the
custom event will be in the following format:
"name=<connector name> status=<connector status>"
For example, when the DisplayPort connector has its status
updated to connected then the event string that is used as part
of the hotplug event will be as follows:
"name=DP-1 status=connected"
If the connector name is not known or is invalid at the time that
the event is triggered then the name will be reported as "unknown".
Change-Id: I5d6164d1e8e651cb05527733d68fa86fefb9e6ce
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Use mutex lock before using queuing ioctls like
queuing, dequeing buffers to avoid race condition.
Change-Id: Ia9fdfd5a766add2f8d99003b0c2bfe7d34d57a09
Signed-off-by: Krupal Divvela <kdivvela@codeaurora.org>
The kernel watchdog is a great debugging tool for finding tasks that
consume a disproportionate amount of CPU time in contiguous chunks. One
can imagine building a similar watchdog for arbitrary driver threads
using save_stack_trace_tsk() and print_stack_trace(). However, this is
not viable for dynamically loaded driver modules on ARM platforms
because save_stack_trace_tsk() is not exported for those architectures.
Export save_stack_trace_tsk() for the ARM64 architecture to align with
x86 and support various debugging use cases such as arbitrary driver
thread watchdog timers.
Change-Id: I61e9d2afc4703a786fa6dcaf82fe46c0ed250045
CRs-Fixed: 2061326
Signed-off-by: Dustin Brown <dustinb@codeaurora.org>
Cache flush and clearing of logical mapping is done right now
only when the allocation is from CMA, for allocation requests
with DMA_ATTR_STRONGLY_ORDERED or DMA_ATTR_NO_KERNEL_MAPPING
set. Extend this to non-CMA allocations too, to avoid cache
aliasing issues.
Change-Id: I133d34d79665ee7159fe384121e933d7768748c2
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Update USB PHY0 parameters for SDA660/630 HDK platform.
Change-Id: I2780afcd99e1bb22f4dd6dc977382d379afb1393
Signed-off-by: Liangliang Lu <luliang@codeaurora.org>
IOMMU driver takes vote on regulator for every unmap, attach or
detach call and removes it once done.
This is an overhead if GPU is in power collapse mode and huge
number of unmap calls are pending from a given context. It would
end up in turning ON/OFF the regulator those many times.
To optimize this, do a deferred regulator disable about 80ms so that
all subsequent requests to regulator enable will be just refcounted.
Change-Id: I07709f5a0ce55298a5fe46ffd95bb8bc472e7069
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
A check is added to ensure that only the supported
ioctl calls are allowed to proceed further and
all other ioctl calls are returned early.
Change-Id: I30f69bc9c60384d01f990bd1830ddc1d8aa9241e
Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
This reverts commit 281fcb5e18.
To address the issue with the OOMkiller causing to kill the
foreground application.
Change-Id: Ie4c078d706fdf1c13ad45840f72b414ddc37c1d0
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
Signed-off-by: Venkateswara Rao Tadikonda <vtadik@codeaurora.org>
The icnss register read/write debugfs entry can be accessed by
multiple user space thread. Memory allocation and deallocation
in the register read/write file operation leads to potential memory
leak during concurrency access of debugfs device file.
Add protection to avoid the memory leak and kernel information
leak due to the race condition in the register read/write ops.
CRs-Fixed: 2012572
Change-Id: I22c6af9a396c0df4e68f75702fc68a5dff5af032
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>
Use put_user API to write the data to userspace from kernel
space to avoid accessing userspace memory directly in
kernel space.
Change-Id: I4dd73872ab8c374793268cef2b9a2dfccf3454c9
Signed-off-by: mohamed sunfeer <msunfeer@codeaurora.org>
The reference count for fbmem buf is not increased before use,
which means it can be get freed unintentionally when the reference
count is decreased to "0". In this case, there is possibility of
use after free. Ensure that fbmem buf refcount is incremented
before use.
Change-Id: I525d41e5496a1123e53a438b5f78d4da8bc046bd
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
adreno_dispatch_work and _kgsl_event_worker are both low-latency
low-runtime functions that are in the critical path of GPU
rendering. Moving them out of workqueues and into a dedicated FIFO
kthread avoids significant jitter.
bug 30342017
Git-commit: 1a7a93bd33f48a369de29f6f2b56251127bf6ab4
Git-repo: https://android.googlesource.com/kernel/msm
Change-Id: I83562f488c34c2ab001c8ea79e7f09b633c658bd
Signed-off-by: Tim Murray <timmurray@google.com>
Signed-off-by: Abhilash Kumar <krabhi@codeaurora.org>
There is a potential race between cgroup_exit() and the
migration path. This race happens because cgroup_exit path
reads the css_set and does cg_list empty check outside of
css_set lock. This can potentially race with the migrate path
trying to move the tasks to a different css_set. For instance,
below is the interleaved sequence of events, where race is
observed:
cpuset_hotplug_workfn()
cgroup_transfer_tasks()
cgroup_migrate()
cgroup_taskset_migrate()
css_set_move_task()
list_del_init(&task->cg_list);
<TASK EXIT>
cgroup_exit()
cset = task_css_set(tsk);
if (!list_empty(&tsk->cg_list))
<TASK NOT DISSOCIATED FROM ITS CSS_SET>
list_add_tail(&task->cg_list, use_mg_tasks
In above sequence, as cgroup_exit() read the cg_list for
the task as empty, it didn't disassociate it from its
current css_set, and was moved to new css_set instance
css_set_move_task() called from cpuset_hotplug_workfn()
path. This eventually can result in use after free scenarios,
while accessing the same task_struct again, like in following
sequence:
kernfs_seq_start()
cgroup_seqfile_start()
cgroup_pidlist_start()
css_task_iter_next()
__put_task_struct()
<NULL pointer dereference>
Fix this problem, by moving the css_set and cg_list fetch in
cgroup_exit() inside css_set lock.
Change-Id: I66060b8faffc06ffb19e2c166013551d4c9cb746
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
As per emmc specification, device should be notified either with
power-off or sleep notification before turning off the Vcc.
Failing to do so might affect the device longevity.
In mmc driver initialization phase even before device probing
gets completed, Vcc is getting turned off without these notifications.
Since it can't send commands at this stage, So just ensure that Vcc
is not turned off till initialization gets completed.
Change-Id: I0bbf0077357d66c888147be40a0c5d312b9ce063
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Currently, USB power_supply POWER_SUPPLY_PROP_ONLINE property will be
set if the charger type is POWER_SUPPLY_TYPE_UNKNOWN which is not
expected. Unset ONLINE for UNKNOWN USB charger type.
CRs-Fixed: 2065139
Change-Id: Ibc40ee62b2d95c319a7fe34b17813c2b57518f67
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>
PLL_ENABLE property is used to enable or disable the PLL
update function. With this property PLL update function
only works when PLL_ENABLE is set, and all changes done
to hardware will be discarded once PLL_ENABLE is cleared.
CRs-Fixed: 2042852
Change-Id: Ia321918382b8622101cff566049284810833f63e
Signed-off-by: Ray Zhang <rayz@codeaurora.org>
On rmnet_ipa_set_data_quota() API, add the
string terminator to prevent vulnerability
of string buffer overflows on debug prints.
Change-Id: Ie669f6606f76b9006bce4edd0c6d04aef9cfb600
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
