here's a couple of display regression fixes for 3.17.

* tag 'drm-intel-fixes-2014-09-03' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Fix lock dropping in intel_tv_detect()
  drm/i915: handle G45/GM45 pulse detection connected state.

Two vmwgfx fixes, marked for stable as well

* 'vmwgfx-fixes-3.17' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Fix a potential infinite spin waiting for fifo idle
  drm/vmwgfx: Fix an incorrect OOM return value

When intel_tv_detect() fails to do load detection it would forget to
drop the locks and clean up the acquire context. Fix it up.

This is a regression from:
 commit 208bf9fd


 Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
 Date:   Mon Aug 11 13:15:35 2014 +0300

    drm/i915: Fix locking for intel_enable_pipe_a()

v2: Make the code more readable (Chris)
v3: Drop WARN_ON(type < 0) (Chris)

Cc: stable@vger.kernel.org
Cc: Tibor Billes <tbilles@gmx.com>
Reported-by: Tibor Billes <tbilles@gmx.com>
Tested-by: Tibor Billes <tbilles@gmx.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

In the HPD pulse handler we check for long pulses if the port is actually
connected, however we do that for IBX, but we use the pulse handling code on
GM45 systems as well, so we need to use a diffent check.

This patch refactors the digital port connected check out of the g4x detection
path and reuses it in the hpd pulse path.

Fixes: http://lkml.kernel.org/r/1409382202.5141.36.camel@marge.simpson.net


Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

The code waiting for fifo idle was incorrect and could possibly spin
forever under certain circumstances.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reported-by: Mark Sheldon <markshel@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Reivewed-by: Mark Sheldon <markshel@vmware.com>
Cc: <stable@vger.kernel.org>

At the same time, make error paths return early for clarity.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: jakob Bornecrantz <jakob@vmware.com>
Cc: <stable@vger.kernel.org>

Some more fixes for 3.17, mostly stable material.

* tag 'drm-intel-fixes-2014-08-28' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Remove bogus __init annotation from DMI callbacks
  drm/i915: don't warn if backlight unexpectedly enabled
  drm/i915: Move intel_ddi_set_vc_payload_alloc(false) to haswell_crtc_disable()
  drm/i915: fix plane/cursor handling when runtime suspended
  drm/i915: Ignore VBT backlight presence check on Acer C720 (4005U)

Pull backlight fix from Lee Jones:
 "One simple fix to invalidate GPIO non-request"

* tag 'backlight-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
  pwm-backlight: Fix bogus request for GPIO#0 when instantiated from DT

Pull mfd fixes from Lee Jones:
 "Couple of simple fixes due for the 3.17 rcs

  (and a sneaky document addition that slipped from the previous
  pull-request)"

* tag 'mfd-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: twl4030-power: Fix PM idle pin configuration to not conflict with regulators
  mfd: tc3589x: Add device tree bindings
  mfd: ab8500-core: Use 'ifdef' for config options
  mfd: htc-i2cpld: Fix %d confusingly prefixed with 0x in format string
  mfd: omap-usb-host: Fix %d confusingly prefixed with 0x in format string

Pull pin-control fixes from Linus Walleij:
 "My first (a bit delayed) pack of pin control fixes for the v3.17
  series, only driver fixes:

   - SH-PFC (Renesas) r8a7791 CAN bus pin group problem
   - Rockchip (GPIO0 configuration)
   - Tegra-xusb (interrupt handling)
   - Exynos (GPIO interrupt locking)
   - Qualcomm (fix misleading example interrupts)
   - minor non-critical fixes for abx500 and AT91 also sneaked in,
     because I initially intended this pull for post RC-1, hope it's
     still OK"

* tag 'pinctrl-v3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: qcom: apq8064: Correct interrupts in example
  pinctrl: exynos: Lock GPIOs as interrupts when used as EINTs
  pinctrl: pinctrl-at91.c: fix decimal printf format specifiers prefixed with 0x
  pinctrl: abx500: remove useless check
  pinctrl: tegra-xusb: testing wrong variable in probe()
  pinctrl: tegra-xusb: fix an off by one test
  pinctrl: rockchip: fix rk3288 gpio0 configuration
  sh-pfc: r8a7791: fix CAN pin groups

Pull dma-buf fixes from Sumit Semwal:
 "The major changes for 3.17 already went via Greg-KH's tree this time
  as well; this is a small pull request for dma-buf - all documentation
  related"

* tag 'for-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf:
  dma-buf/fence: Fix one more kerneldoc warning
  dma-buf/fence: Fix a kerneldoc warning
  Documentation/dma-buf-sharing.txt: update API descriptions

Pull sound fixes from Takashi Iwai:
 "Here contains not many exciting changes but just a few minor ones: An
  off-by-one proc write fix, a couple of trivial incldue guard fixes,
  Acer laptop pinconfig fix, and a fix for DSD formats that are still
  rarely used"

* tag 'sound-3.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Set up initial pins for Acer Aspire V5
  ALSA: pcm: Fix the silence data for DSD formats
  ALSA: ctxfi: ct20k1reg: Fix typo in include guard
  ALSA: hda: ca0132_regs.h: Fix typo in include guard
  ALSA: core: fix buffer overflow in snd_info_get_line()

Pull drm fixes from Dave Airlie:
 "Nothing major, one core oops fixes, some radeon oops fixes, some sti
  driver fixups, msm driver fixes and a minor Kconfig update for the ww
  mutex debugging"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/ast: Add missing entry to dclk_table[]
  drm: fix division-by-zero on dumb_create()
  ww-mutex: clarify help text for DEBUG_WW_MUTEX_SLOWPATH
  radeon: Test for PCI root bus before assuming bus->self
  drm/radeon: handle broken disabled rb mask gracefully (6xx/7xx) (v2)
  drm/radeon: save/restore the PD addr on suspend/resume
  drm/msm: Fix missing unlock on error in msm_fbdev_create()
  drm/msm: fix compile error for non-dt builds
  drm/msm/mdp4: request vblank during modeset
  drm/msm: avoid flood of kernel logs on faults
  drm: sti: Add missing dependency on RESET_CONTROLLER
  drm: sti: Make of_device_id array const
  drm: sti: Fix return value check in sti_drm_platform_probe()
  drm: sti: hda: fix return value check in sti_hda_probe()
  drm: sti: hdmi: fix return value check in sti_hdmi_probe()
  drm: sti: tvout: fix return value check in sti_tvout_probe()

Commit 43fef47f (mfd: twl4030-power: Add a configuration to turn
off oscillator during off-idle) added support for configuring the PMIC
to cut off resources during deeper idle states to save power.

This however caused regression for n900 display power that needed the
PMIC configuration to be disabled with commit d937678a (ARM: dts:
Revert enabling of twl configuration for n900).

Turns out the root cause of the problem is that we must use
TWL4030_RESCONFIG_UNDEF instead of DEV_GRP_NULL to avoid disabling
regulators that may have been enabled before the init function
for twl4030-power.c runs. With TWL4030_RESCONFIG_UNDEF we let the
regulator framework control the regulators like it should. Here we
need to only configure the sys_clken and sys_off_mode triggers for
the regulators that cannot be done by the regulator framework as
it's not running at that point.

This allows us to enable the PMIC configuration for n900.

Fixes: 43fef47f

 (mfd: twl4030-power: Add a configuration to turn off oscillator during off-idle)

Cc: stable@vger.kernel.org # v3.16
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

This defines the device tree bindings for the Toshiba TC3589x
series of multi-purpose expanders. Only the stuff I can test
is defined: GPIO and keypad. Others may implement more
subdevices further down the road.

This is to complement
commit a435ae1d


"mfd: Enable the tc3589x for Device Tree" which left off
the definition of the device tree bindings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

The __init annotations for the DMI callback functions are wrong as this
code can be called even after the module has been initialized, e.g. like
this:

  # echo 1 > /sys/bus/pci/devices/0000:00:02.0/remove
  # modprobe i915
  # echo 1 > /sys/bus/pci/rescan

The first command will remove the PCI device from the kernel's device
list so the second command won't see it right away. But as it registers
a PCI driver it'll see it on the third command. If the system happens to
match one of the DMI table entries we'll try to call a function in long
released memory and generate an Oops, at best.

Fix this by removing the bogus annotation.

Modpost should have caught that one but it ignores section reference
mismatches from the .rodata section. :/

Fixes: 25e341cf ("drm/i915: quirk away broken OpRegion VBT")
Fixes: 8ca4013d ("CHROMIUM: i915: Add DMI override to skip CRT...")
Fixes: 425d244c

 ("drm/i915: ignore LVDS on intel graphics systems...")
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Duncan Laurie <dlaurie@chromium.org>
Cc: Jarod Wilson <jarod@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>	# Can modpost be fixed?
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

The seqno_fence_init() function's cond argument isn't described in the
kerneldoc comment. Fix that to silence a warning when building DocBook
documentation.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>

kerneldoc doesn't know how to parse variables, so don't let it try.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>

Update some descriptions for API arguments and descriptions.

Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>

This avoid reading past the end of the list for certain modes

Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Reviewed-by: Egbert Eich <eich@freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Merge branch 'drm-3.17-rc2-sti-fixes' of git://git.linaro.org/people/benjamin.gaignard/kernel into drm-fixes

I have tested the 6 patches send on mailing list since you merge the sti driver.
I haven't seen issue with those patches except for the missing
dependency on Kconfig
where I have change "depends on" to "select".

* 'drm-3.17-rc2-sti-fixes' of git://git.linaro.org/people/benjamin.gaignard/kernel:
  drm: sti: Add missing dependency on RESET_CONTROLLER
  drm: sti: Make of_device_id array const
  drm: sti: Fix return value check in sti_drm_platform_probe()
  drm: sti: hda: fix return value check in sti_hda_probe()
  drm: sti: hdmi: fix return value check in sti_hdmi_probe()
  drm: sti: tvout: fix return value check in sti_tvout_probe()

misc msm fixes from Rob.

* 'msm-fixes-3.17' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: Fix missing unlock on error in msm_fbdev_create()
  drm/msm: fix compile error for non-dt builds
  drm/msm/mdp4: request vblank during modeset
  drm/msm: avoid flood of kernel logs on faults

Kinda unexpected, but DIV_ROUND_UP() can overflow if passed an argument
bigger than UINT_MAX - DIVISOR. Fix this by testing for "!cpp" before
using it in the following division.

Note that DIV_ROUND_UP() is defined as:
        #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))

..this will obviously overflow if (n + d - 1) is bigger than UINT_MAX.

Reported-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

We really don't want distro's enabling this in their kernels.  Try and
make that more clear.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Just a few more radeon fixes for 3.17.

* 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux:
  radeon: Test for PCI root bus before assuming bus->self
  drm/radeon: handle broken disabled rb mask gracefully (6xx/7xx) (v2)
  drm/radeon: save/restore the PD addr on suspend/resume

Pull tomoyo fix from Serge Hallyn.

* 'sec-v3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux-security:
  tomoyo: Fix pathname calculation breakage.

If we assign a Radeon device to a virtual machine, we can no longer
assume a fixed hardware topology, like the GPU having a parent device.
This patch simply adds a few pci_is_root_bus() tests to avoid passing
a NULL pointer to PCI access functions, allowing the radeon driver to
work in a QEMU 440FX machine with an assigned HD8570 on the emulated
PCI root bus.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Pull HID fixes from Jiri Kosina:

 - fixes for potential memory corruption problems in magicmouse and
   picolcd drivers (the HW would have to be manufactured to be
   deliberately evil to trigger those) which were found by Steven
   Vittitoe

 - fix for false error message appearing in dmesg from logitech-dj
   driver, from Benjamin Tissoires

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: picolcd: sanity check report size in raw_event() callback
  HID: magicmouse: sanity check report size in raw_event() callback
  HID: logitech-dj: prevent false errors to be shown

Pull btrfs fixes from Chris Mason:
 "The biggest of these comes from Liu Bo, who tracked down a hang we've
  been hitting since moving to kernel workqueues (it's a btrfs bug, not
  in the generic code).  His patch needs backporting to 3.16 and 3.15
  stable, which I'll send once this is in.

  Otherwise these are assorted fixes.  Most were integrated last week
  during KS, but I wanted to give everyone the chance to test the
  result, so I waited for rc2 to come out before sending"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (24 commits)
  Btrfs: fix task hang under heavy compressed write
  Btrfs: fix filemap_flush call in btrfs_file_release
  Btrfs: fix crash on endio of reading corrupted block
  btrfs: fix leak in qgroup_subtree_accounting() error path
  btrfs: Use right extent length when inserting overlap extent map.
  Btrfs: clone, don't create invalid hole extent map
  Btrfs: don't monopolize a core when evicting inode
  Btrfs: fix hole detection during file fsync
  Btrfs: ensure tmpfile inode is always persisted with link count of 0
  Btrfs: race free update of commit root for ro snapshots
  Btrfs: fix regression of btrfs device replace
  Btrfs: don't consider the missing device when allocating new chunks
  Btrfs: Fix wrong device size when we are resizing the device
  Btrfs: don't write any data into a readonly device when scrub
  Btrfs: Fix the problem that the replace destroys the seed filesystem
  btrfs: Return right extent when fiemap gives unaligned offset and len.
  Btrfs: fix wrong extent mapping for DirectIO
  Btrfs: fix wrong write range for filemap_fdatawrite_range()
  Btrfs: fix wrong missing device counter decrease
  Btrfs: fix unzeroed members in fs_devices when creating a fs from seed fs
  ...

Merge tag 'trace-fixes-v3.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull trace buffer epoll hang fix from Steven Rostedt:
 "Josef Bacik found a bug in the ring_buffer_poll_wait() where the
  condition variable (waiters_pending) was set before being added to the
  poll queue via poll_wait().  This allowed for a small race window to
  happen where an event could come in, check the condition variable see
  it set to true, clear it, and then wake all the waiters.  But because
  the waiter set the variable before adding itself to the queue, the
  waker could have cleared the variable after it was set and then miss
  waking it up as it wasn't added to the queue yet.

  Discussing this bug, we realized that a memory barrier needed to be
  added too, for the rare case that something polls for a single trace
  event to happen (and just one, no more to come in), and miss the
  wakeup due to memory ordering.  Ideally, a memory barrier needs to be
  added on the writer side too, but as that will kill tracing
  performance and this is for a situation that tracing wasn't even
  designed for (who traces one instance of an event, use a printk
  instead!), this isn't worth adding the barrier.  But we can in the
  future add the barrier for when the buffer goes from empty to the
  first event, as that would cover this case"

* tag 'trace-fixes-v3.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  trace: Fix epoll hang when we race with new entries

BIOS or firmware can modify hardware state during suspend/resume,
for example on the Toshiba CB35 or Lenovo T400, so log a debug message
instead of a warning if the backlight is unexpectedly enabled.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80930


Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Scot Doyle <lkml14@scotdoyle.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

The report passed to us from transport driver could potentially be
arbitrarily large, therefore we better sanity-check it so that raw_data
that we hold in picolcd_pending structure are always kept within proper
bounds.

Cc: stable@vger.kernel.org
Reported-by: Steven Vittitoe <scvitti@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

The report passed to us from transport driver could potentially be
arbitrarily large, therefore we better sanity-check it so that
magicmouse_emit_touch() gets only valid values of raw_id.

Cc: stable@vger.kernel.org
Reported-by: Steven Vittitoe <scvitti@google.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Acer Aspire V5 doesn't set up the pins correctly at the cold boot
while the pins are corrected after the warm reboot.  This patch gives
the proper pin configs statically in the driver as a workaround.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81561


Signed-off-by: Takashi Iwai <tiwai@suse.de>

Commit 7177a9c4

 ("fs: call rename2 if exists") changed
"struct inode_operations"->rename == NULL if
"struct inode_operations"->rename2 != NULL .

TOMOYO needs to check for both ->rename and ->rename2 , or
a system on (e.g.) ext4 filesystem won't boot.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Pull s390 updates from Martin Schwidefsky:
 - wire up the system calls seccomp, getrandom and memfd_create
 - use static system information as input to add_device_randomness
 - .. and three bug fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/sclp: remove unnecessary XTABS flag
  s390/3215: fix tty output containing tabs
  s390: wire up memfd_create syscall
  s390: add system information as device randomness
  s390/kdump: Clear subchannel ID to signal non-CCW/SCSI IPL
  s390: wire up seccomp and getrandom syscalls

Update the description for per cpu operations to clarify use cases of
this_cpu operations and add considerations for remote access.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Fix scripts/kernel-doc to recognize __meminit in a function prototype
and to strip it, as done with many other attributes.

Fixes this warning:

  Warning(..//mm/page_alloc.c:2973): cannot understand function prototype: 'void * __meminit alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask) '

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This is a port of cedb655a


to older asics.  Fixes a possible divide by 0 if the harvest
register is invalid.

v2: drop some additional harvest munging.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

This fixes a problem with GPU resets and TLB flushes on SI/CIK.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>