Commit graph

691,473 commits

Author SHA1 Message Date
Loc Ho
0f4c7a138d clk: xgene: Add missing parenthesis when clearing divider value
In the initial fix for non-zero divider shift value, the parenthesis
was missing after the negate operation. This patch adds the required
parenthesis. Otherwise, lower bits may be cleared unintentionally.

Signed-off-by: Loc Ho <lho@apm.com>
Acked-by: Toan Le <toanle@apm.com>
Fixes: 1382ea631d ("clk: xgene: Fix divider with non-zero shift value")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-03 11:37:15 -08:00
Linus Torvalds
19eab220e7 IOMMU Fixes for Linux v4.5-rc6
Including one fix for Intel VT-d:
 
 	* Use BUS_NOTIFY_REMOVED_DEVICE notifier to unbind a device from
 	  its domain _after_ it has been unbound from its driver. This
 	  fixes a BUG_ON being triggered in the PCI hotplug path.
 
 And three for AMD IOMMU:
 
 	* Add a workaround for a hardware issue with ATS in use
 
 	* Fix ATS enable/disable balance when a device is removed
 
 	* Fix a boot warning being triggered when the system has IOMMU
 	  performance counters and PCI device 00:00.0 is not covered by
 	  the IOMMU
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Merge tag 'iommu-fixes-v4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "One fix for Intel VT-d:

   - Use BUS_NOTIFY_REMOVED_DEVICE notifier to unbind a device from its
     domain _after_ it has been unbound from its driver.  This fixes a
     BUG_ON being triggered in the PCI hotplug path.

  And three for AMD IOMMU:

   - Add a workaround for a hardware issue with ATS in use

   - Fix ATS enable/disable balance when a device is removed

   - Fix a boot warning being triggered when the system has IOMMU
     performance counters and PCI device 00:00.0 is not covered by the
     IOMMU"

* tag 'iommu-fixes-v4.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path
  iommu/amd: Detach device from domain before removal
  iommu/amd: Apply workaround for ATS write permission check
  iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered
2016-03-03 11:32:13 -08:00
Stephen Boyd
0d9967fe4b clk: mb86s7x: Remove CLK_IS_ROOT
This flag is a no-op now. Remove usage of the flag.

Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-03 11:27:48 -08:00
Stephen Boyd
4106684e11 clk: x86: Remove clkdev.h and clk.h includes
This driver is a clk provider and not a clk consumer, so remove
the clk.h include. Also, drop clkdev.h because there's not clkdev
usage here either.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-03 11:27:26 -08:00
Stephen Boyd
553b485817 clk: x86: Remove CLK_IS_ROOT
This flag is a no-op now. Remove usage of the flag.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-03 11:27:18 -08:00
Stephen Boyd
2969f6ee37 clk: mvebu: Remove CLK_IS_ROOT
This flag is a no-op now. Remove usage of the flag.

Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-03 11:26:42 -08:00
Simon Horman
b3a33077c0 clk: renesas: move drivers to renesas directory
This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Along with the above mentioned Kconfig changes it seems appropriate
to also rename directories that only hold drivers for such SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-03 11:22:53 -08:00
Stephen Boyd
27fbd266de Merge branch 'clk-shmobile-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next
Pull shmobile clk updates from Geert Uytterhoeven:

   - Fix a bug in the div6 clock driver that was exposed by CAN
     support on R-Car H3,
   - Add more module clocks for R-Car H3.

* 'clk-shmobile-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: shmobile: r8a7795: Add CAN FD peripheral clock
  clk: shmobile: r8a7795: Add CANFD clock
  clk: shmobile: r8a7795: Add CAN peripheral clock
  clk: shmobile: div6: Fix .recalc_rate() using a stale divisor
  clk: shmobile: r8a7795: Add LVDS module clock
  clk: shmobile: r8a7795: Add FCP clocks
2016-03-03 11:21:40 -08:00
Linus Torvalds
f4bd982208 virtio/vhost: minor fixes
This fixes two minor bugs: error handling in vhost,
 and capability processing in virtio.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull minor virtio/vhost fixes from Michael Tsirkin:
 "This fixes two minor bugs: error handling in vhost, and capability
  processing in virtio"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost: fix error path in vhost_init_used()
  virtio-pci: read the right virtio_pci_notify_cap field
2016-03-03 11:07:32 -08:00
Linus Torvalds
52ad12966b VFIO fixes for v4.5-rc7
- Use -EFAULT for copy_to_user error in ioctl (Michael Tsirkin)
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Merge tag 'vfio-v4.5-rc7' of git://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:
 "Use -EFAULT for copy_to_user error in ioctl (Michael Tsirkin)"

* tag 'vfio-v4.5-rc7' of git://github.com/awilliam/linux-vfio:
  vfio: fix ioctl error handling
2016-03-03 10:56:17 -08:00
Mike Marshall
9d9e7ba9ee Orangefs: improve gossip statements
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-03-03 13:46:48 -05:00
Linus Torvalds
215b031b97 fbdev fixes for v4.5
* fix hang caused by fbconsole blink timer
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Merge tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev fix from Tomi Valkeinen:
 "Fix hang caused by fbconsole blink timer"

* tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  fbcon: set a default value to blink interval
2016-03-03 10:46:18 -08:00
Markus Elfring
95f60bb811 IB/ocrdma: Skip using unneeded intermediate variable
Return the value from a call of the ocrdma_mbx_modify_qp() function
without using an extra assignment for the local variable "status".

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-03 13:33:22 -05:00
Markus Elfring
d1c95b0e65 IB/ocrdma: Skip using unneeded intermediate variable
Return zero at the end without using the local variable "status".

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-03 13:33:10 -05:00
Markus Elfring
0ca4c39f32 IB/ocrdma: Delete unnecessary variable initialisations in 11 functions
The variable "status" will be set to an appropriate value a bit later.
Thus let us omit the explicit initialisation at the beginning.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-03 13:31:59 -05:00
Hans Verkuil
9532e6bbef [media] v4l2-mc.h: fix compiler warnings
Fix these warnings when CONFIG_MEDIA_CONTROLLER is not defined:

In file included from drivers/media/v4l2-core/v4l2-fh.c:32:0:
include/media/v4l2-mc.h:173:12: warning: 'v4l_enable_media_source' defined but not used [-Wunused-function]
 static int v4l_enable_media_source(struct video_device *vdev)
            ^
include/media/v4l2-mc.h:183:12: warning: 'v4l_vb2q_enable_media_source' defined but not used [-Wunused-function]
 static int v4l_vb2q_enable_media_source(struct vb2_queue *q)
            ^
In file included from include/media/tuner.h:23:0,
                 from drivers/media/tuners/tuner-types.c:9:
include/media/v4l2-mc.h:173:12: warning: 'v4l_enable_media_source' defined but not used [-Wunused-function]
 static int v4l_enable_media_source(struct video_device *vdev)
            ^
include/media/v4l2-mc.h:178:13: warning: 'v4l_disable_media_source' defined but not used [-Wunused-function]
 static void v4l_disable_media_source(struct video_device *vdev)
             ^

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 15:15:32 -03:00
Ard Biesheuvel
57efac2f71 arm64: enable CONFIG_DEBUG_RODATA by default
In spite of its name, CONFIG_DEBUG_RODATA is an important hardening feature
for production kernels, and distros all enable it by default in their
kernel configs. However, since enabling it used to result in more granular,
and thus less efficient kernel mappings, it is not enabled by default for
performance reasons.

However, since commit 2f39b5f91e ("arm64: mm: Mark .rodata as RO"), the
various kernel segments (.text, .rodata, .init and .data) are already
mapped individually, and the only effect of setting CONFIG_DEBUG_RODATA is
that the existing .text and .rodata mappings are updated late in the boot
sequence to have their read-only attributes set, which means that any
performance concerns related to enabling CONFIG_DEBUG_RODATA are no longer
valid.

So from now on, make CONFIG_DEBUG_RODATA default to 'y'

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-03-03 18:14:17 +00:00
Hal Rosenstock
5a30247bf0 IB/core: Documentation fix in the MAD header file
In ib_mad.h, ib_mad_snoop_handler uses send_buf rather than send_wr

Signed-off-by: Hal Rosenstock <hal@mellanox.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-03 13:13:52 -05:00
Shuah Khan
9096cae181 [media] media: au0828 audio mixer isn't connected to decoder
When snd_usb_audio gets probed first, audio mixer doesn't get linked to
the decoder.

Change au0828_media_graph_notify() to handle the mixer entity getting
registered before the decoder.

Change au0828_media_device_register() to invoke
au0828_media_graph_notify() to connect entites that were created prior
to registering the notify handler.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reported-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 15:13:11 -03:00
Johan Hovold
c7733b6167 greybus: raw: use hexadecimal notation for request types
Use hexadecimal notation for request types in log messages.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2016-03-03 10:02:48 -08:00
Johan Hovold
41993cd54f greybus: loopback: fix double error count
Make sure not count errors during asynchronous tests twice (first in
the timeout handler then again in the completion handler) to avoid
obviously broken error stats such as:

$ loopback_test -i 1000 -t transfer -p -o 200000 -c 64 -x -s 2000

1970-1-1 1:3:35
 test:                  transfer
 path:                  gb_loopback0
 size:                  2000
 iterations:            1000
 errors:                1998
 async:                 Enabled
 requests per-sec:      min=0, max=0, average=0.310556, jitter=0
 ap-throughput B/s:     min=0 max=4026 average=1254.647461 jitter=4026
 ap-latency usec:       min=12803 max=12803 average=12803.000000 jitter=0
 apbridge-latency usec: min=89 max=89 average=89.000000 jitter=0
 gpbridge-latency usec: min=294 max=294 average=294.000000 jitter=0

where we supposedly have more errors than iterations (operations
initiated).

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2016-03-03 10:02:48 -08:00
Shuah Khan
aebb2b89bf [media] sound/usb: Use Media Controller API to share media resources
Change ALSA driver to use Media Controller API to share media resources
with DVB and V4L2 drivers on a AU0828 media device. Media Controller
specific initialization is done after sound card is registered. ALSA
creates Media interface and entity function graph nodes for Control,
Mixer, PCM Playback, and PCM Capture devices.

snd_usb_hw_params() will call Media Controller enable source handler
interface to request the media resource. If resource request is
granted, it will release it from snd_usb_hw_free(). If resource is
busy, -EBUSY is returned.

Media specific cleanup is done in usb_audio_disconnect().

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 15:01:13 -03:00
Mauro Carvalho Chehab
93125094c0 [media] media.h: postpone connectors entities
The representation of external connections got some heated
discussions recently. As we're too close to the merge window,
let's not set those entities into a stone.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:52:51 -03:00
Olli Salonen
6ede20f968 [media] dw2102: add support for TeVii S662
TeVii S662 is a USB 2.0 DVB-S2 tuner that's identical to TechnoTrend
S2-4600 tuner. Add the USB ID to dw2102 driver.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:36:36 -03:00
Olli Salonen
6060421368 [media] dw2102: ts2020 included twice
ts2020.h was already included a few lines earlier. Remove the unnecessary entry.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:35:20 -03:00
Olli Salonen
711f3fba6f [media] dvb-core: fix return code checking for devices with CA
The test for the return code was mistakenly inverted. This caused DVB
devices with CA module to fail on modprobe.

Tested with TechnoTrend CT2-4650 CI USB tuner.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:33:33 -03:00
RitwikGopi
34f0693d7d [media] Staging: media/lirc: lirc_zilog.c : fixed a string split in multi-line issue
Fixed a quoted string split in to multiple line issue(Actually fixed 2
warnings since it was split in to 3 lines.)

Signed-off-by: Ritwik G <ritwikgopi@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:33:15 -03:00
Tvrtko Ursulin
5ba001783b drm/i915: Do not wait atomically for display clocks
Looks like this code does not need to wait atomically since it
otherwise takes the mutex.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457015805-23742-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-03-03 17:29:13 +00:00
Tvrtko Ursulin
0351b93992 drm/i915: Do not lie about atomic timeout granularity
Currently the wait_for_atomic_us only allows for a jiffie
timeout granularity which is not nice towards callers
requesting small micro-second timeouts.

Re-implement it so micro-second timeout granularity is really
supported and not just in the name of the macro.

This has another beneficial side effect that it improves
"gem_latency -n 100" results by approximately 2.5% (throughput
and latencies) and 3% (CPU usage). (Note this improvement is
relative to not yet merged execlist lock uncontention patch
which moves the CSB MMIO outside this lock.)

It also shrinks some hot functions like fw_domains_get by a
tiny 3%.

v2:
  * Warn when used from non-atomic context (if possible).
  * Warn on too long atomic waits.

v3:
  * Added comment explaining CONFIG_PREEMPT_COUNT.
  * Fixed pre-processor indentation.
  (Chris Wilson)

v4:
 * Commit msg update (gem_latency) and rebase.

v5:
 * Commit message re-wording.
 * Added comment about no need for double cond check. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-03-03 17:29:09 +00:00
Miaoqing Pan
25c0f30142 ath9k: clear bb filter calibration power threshold
JP WiFi certification for bandwidth of channel 14 failed, the OBW
is lower than the requirement. Clear the bb filter calibration power
threshold to increase OBW(+2). The fix only for qca9531 chip now.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:27:17 +02:00
Arnd Bergmann
e9a26010f6 ath9k: reduce stack usage in ar9003_aic_cal_post_process
In some configurations, this function uses more than the warning limit
of 1024 bytes:

drivers/net/wireless/ath/ath9k/ar9003_aic.c: In function 'ar9003_aic_cal_post_process':
drivers/net/wireless/ath/ath9k/ar9003_aic.c:434:1: error: the frame size of 1040 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

It turns out that there are two large arrays on the stack here, but
almost all the data in them is never used outside of the loop in
which it gets written, so we can replace the array with a single
instance.

The .valid flag is used later, so I'm replacing the array of structures
with an array of bools. An obvious follow-up optimization would be
to replace it with a bitmask and set_bit()/find_first_bit()/
find_last_bit()/... operations. However, I have not tested this patch,
so I sticked to the simpler transformation that does the job of
reducing the stack usage to a harmless level.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:27:17 +02:00
Miaoqing Pan
82def495d1 ath9k: make NF load complete quickly and reliably
Make NF load complete quickly and reliably. NF load execution
is delayed by HW to end of frame if frame Rx or Tx is ongoing.
Increasing timeout to max frame duration. If NF cal is ongoing
before NF load, stop it before load, and restart it afterwards.

Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:27:17 +02:00
Mohammed Shafi Shajakhan
c28e6f06ff ath10k: fix sanity check on enabling btcoex via debugfs
First check for the device state before enabling / disabling
btcoex, also return a proper error value. Enabling / disabling
btcoex ideally does a f/w + ath10k_core_restart so the checks
that are applicable for 'simulate_fw_crash' shall be applicable
for this as well

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:27:17 +02:00
Tvrtko Ursulin
643a24b6ec drm/i915: Kconfig for extra driver debugging
v2: Added a submenu based on an idea by Chris Wilson.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-03-03 17:26:57 +00:00
Jemma Denson
035cad576d [media] cx24120: make sure tuner is locked at get_frontend
Change get_frontend to re-check current lock status rather than relying
on a cached value from get_status. Removes potential for tuning failure
if get_frontend is called during tuning.

Probably not too essential as other changes work around this:
https://patchwork.linuxtv.org/patch/32845/

Signed-off-by: Jemma Denson <jdenson@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:26:55 -03:00
Tvrtko Ursulin
8de1b23efa drm/i915/lrc: Do not wait atomically when stopping engines
I do not see that this needs to be done atomically and up to
one second is quite a long time to busy loop.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-03-03 17:26:51 +00:00
Tvrtko Ursulin
3f177625ee drm/i915: Add wait_for_us
This is for callers who want micro-second precision but are not
waiting from the atomic context.

v2:
  * Fix atomic waits. (Dave Gordon)
  * Use USEC_PER_SEC and USEC_PER_MSEC. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-03-03 17:24:57 +00:00
Matthieu Rogez
565e37d168 [media] em28xx: add support for Terratec Grabby Record led
Terratec Grabby (hw rev 2) Record led is connected to GPIO 3
and its logic is inverted: (PIO3 = 0: on, PIO3 = 1: off).

Signed-off-by: Matthieu Rogez <matthieu.rogez@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:22:24 -03:00
Matthieu Rogez
dd837fb9a5 [media] em28xx: add support for Terratec Grabby REC button
Terratec Grabby (hw rev 2) REC button uses the standard snapshot button
configuration.

Signed-off-by: Matthieu Rogez <matthieu.rogez@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:21:57 -03:00
Anilkumar Kolli
af9a6a3ad0 ath10k: reduce number of peers to support peer stats feature
To enable per peer stats feature we are reducing the number of peers.
Firmware has introduced tx stats feature. We have memory limitation in
firmware to add these additional bytes.

These are the new variables introduced in the firmware.
========		=======================
Variable	      	Bytes required/per rate
========		=======================
TX success packets 	1
TX failed packets	1
Retry packets		1
Success bytes		2
TX failed bytes		2
Retry bytes		2
Tx duration		4
Rate			1
Bw and AMPDU flags	1
Total			16 (because of allocation in word pattern)

Firmware sends these tx_stats in pktlog.
If we consider 4 feedbacks at a time, Frimware need about ~1K memory for coding
and 8192 bytes required / per rate [ 4*16*128(peers)].
To accommodate this firmware needs to reduce 10 peers.

This fixes a firmware crash with firmware-5.bin_10.2.4.70.22-2.

Signed-off-by: Anilkumar Kolli <akolli@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:20:01 +02:00
Rajkumar Manoharan
da6416cac6 ath10k: process htt rx indication as batch mode
On multicore systems, it is possible that txrx tasket can run
in parallel with pci tasklet (i.e smp affinity of ath10k irq is
assigned to multiple CPUs). Feeding and consuming from the same
rx completion list leads to txrx tasklet runs for longer period.
Prevent this by processing a snapshot of rx queue by moving list
into temporary list. Consecutive received frames will be processed
in next batch.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:20:01 +02:00
Rajkumar Manoharan
e7827e512a ath10k: reduce rx_lock contention for htt rx indication
Received frame indications are queued into a skb list and latest
processed by txrx tasklet. This skb queue is protected by htt rx lock.
Since the entire rx processing till delivering frame to mac80211 and
replenish tasks are processed under rx_lock protection, there might be
some delay in queuing newly received rx frame into that list on
multicore systems. Optimize this by using skb list lock while accessing
rx completion queue instead of htt rx lock.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:20:01 +02:00
Anton Protopopov
22baa98097 ath10k: fix erroneous return value
The ath10k_pci_hif_exchange_bmi_msg() function may return the positive
value EIO instead of -EIO in case of error.

Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:20:01 +02:00
Ashok Raj Nagarajan
1835374917 ath10k: add hw_rev to trace events to support pktlog
pktlog data is different between firmware variants (eg. 10.2 vs 10.4). To
have a unified user space script to decode pktlog trace events generated,
it is desirable to know which firmware variant has provided the events and
thereby decode the pktlogs appropriately. Hardware revision (hw_rev) helps
to determine the firmware variant sending these trace events. So add hw_rev
to trace events.

Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:20:00 +02:00
Ashok Raj Nagarajan
53a5c9bc53 ath10k: fix pktlog in QCA99X0
Currently, we are providing wrong payload data of pktlog to trace points.
Data we receive from FW through copy engine 8 contains pktlog data alone.
We don't need to parse anything in driver before handing it to trace
points.

Fixes: afb0bf7f53 ("ath10k: add support for pktlog in QCA99X0")
Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:20:00 +02:00
Mohammed Shafi Shajakhan
e0b6ce00b1 ath10k: fix pointless update of peer stats list
We periodically receive f/w stats event for updating
the rx duration and there is no reason to keep on appending
the f/w stats peer list, as this gets completely cleaned up when
the user polls for f/w stats {pdev, vdev, peer stats}. Only don't
print the warning message in the case PEER_STATS service is enabled

Fixes: 856e7c3 ("ath10k: add debugfs support for Per STA total rx duration")
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-03-03 19:17:57 +02:00
Arnd Bergmann
363bdb1144 [media] saa7134: fix warning with !MEDIA_CONTROLLER
When CONFIG_MEDIA_CONTROLLER is disabled, we get a warning
about an unused function:

drivers/media/pci/saa7134/saa7134-core.c:832:13: error: 'saa7134_create_entities' defined but not used [-Werror=unused-function]

This moves the #ifdef outside of the function, as it is
never called here.

Fixes: ac90aa02d5 ("[media] saa7134: add media controller support")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:12:46 -03:00
Arnd Bergmann
0d37ba6250 [media] em28xx: restore lost #ifdef
The cleanup that changed the em28xx driver to use v4l2_mc_create_media_graph
instead of its own implementation causes a build error when CONFIG_MEDIA_CONTROLLER
is disabled:

drivers/media/usb/em28xx/em28xx-video.c: In function 'em28xx_v4l2_init':
drivers/media/usb/em28xx/em28xx-video.c:2717:38: error: 'struct em28xx' has no member named 'media_dev'

This puts the new code inside the same #ifdef that controls the presence
of the 'media_dev' member, and that the old code was in.

Fixes: de39078779 ("[media] em2xx: use v4l2_mc_create_media_graph()")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:12:26 -03:00
Philipp Zabel
bc717d5e92 [media] coda: fix error path in case of missing pdata on non-DT platform
If we bail out this early, v4l2_device_register() has not been called
yet, so no need to call v4l2_device_unregister().

Fixes: b7bd660a51 ("[media] coda: Call v4l2_device_unregister() from a single location")

Reported-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:11:51 -03:00
Javier Martinez Canillas
31e717dba1 [media] Revert "[media] tvp5150: document input connectors DT bindings"
This reverts commit 82c2ffeb21 ("[media] tvp5150: document input
connectors DT bindings") since the DT binding is too device driver
specific and should instead be more generic and use the bindings
in Documentation/devicetree/bindings/display/connector/ and linked
to the tvp5150 using the OF graph port and endpoints.

There are still ongoing discussions about how the input connectors
will be supported by the Media Controller framework so until that
is settled, it is better to revert the connectors portion of the
bindings to avoid known to be broken bindings docs to hit mainline.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 13:58:28 -03:00