24236 Commits

Author SHA1 Message Date
Linus Torvalds
c28b947d04 DeviceTree fixes for 4.5-rc5:
- Fix irq msi-map calculation for nonzero rid-base.
 
 - Binding doc updates for GICv3, fsl-imx-uart, and S3C RTC.
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Merge tag 'devicetree-fixes-for-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - Fix irq msi-map calculation for nonzero rid-base.

 - Binding doc updates for GICv3, fsl-imx-uart, and S3C RTC.

* tag 'devicetree-fixes-for-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  rtc: s3c: Document required clocks in the DT binding
  serial: fsl-imx-uart: Fix typo in fsl,dte-mode description
  dt-bindings: arm, gic-v3: require that reserved cells are always 0
  of/irq: Fix msi-map calculation for nonzero rid-base
2016-02-17 11:50:53 -08:00
Ingo Molnar
9109dc97b0 Merge branch 'perf/urgent' into perf/core, to queue up dependent patch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-17 10:37:36 +01:00
Michael S. Tsirkin
4e7f9df258 hpet: Drop stale URLs
Looks like the HPET spec at intel.com got moved.
It isn't hard to find so drop the link, just mention
the revision assumed.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/1455145462-3877-1-git-send-email-mst@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-17 09:39:56 +01:00
Stephan Mueller
ba871e1d29 crypto: doc - add skcipher API documentation
The crypto API received the skcipher API which is intended to replace
the ablkcipher and blkcipher API. This patch adds the skcipher API
documentation to the DocBook, updates the code sample (including
removing the blkcipher example) replaces the references to ablkcipher
and blkcipher with skcipher.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-17 04:07:54 +08:00
Stephan Mueller
3981d37ff3 crypto: doc - update AEAD AD handling
The associated data handling with the kernel crypto API has been
updated. This needs to be reflected in the documentation.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-17 04:07:54 +08:00
Stephan Mueller
649e2007d9 crypto: doc - add crypto_rng_generate
Add new crypto API call crypto_rng_generate to DocBook.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-17 04:07:53 +08:00
Stephan Mueller
e1eabc057a crypto: doc - add akcipher API
Reference the new akcipher API calls in the kernel crypto API DocBook.

Also, fix the comments in the akcipher.h file: double dashes do not look
good in the DocBook; fix a typo.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-17 04:07:53 +08:00
Joshua Henderson
d489d170ea dt/bindings: Add bindings for the PIC32 random number generator
Document the devicetree bindings for the random number generator found
on Microchip PIC32 class devices.

Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-02-17 04:07:47 +08:00
Andrey Smetanin
83326e43f2 kvm/x86: Hyper-V VMBus hypercall userspace exit
The patch implements KVM_EXIT_HYPERV userspace exit
functionality for Hyper-V VMBus hypercalls:
HV_X64_HCALL_POST_MESSAGE, HV_X64_HCALL_SIGNAL_EVENT.

Changes v3:
* use vcpu->arch.complete_userspace_io to setup hypercall
result

Changes v2:
* use KVM_EXIT_HYPERV for hypercalls

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
CC: Gleb Natapov <gleb@kernel.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: "K. Y. Srinivasan" <kys@microsoft.com>
CC: Haiyang Zhang <haiyangz@microsoft.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: qemu-devel@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-02-16 18:48:44 +01:00
Varadarajan Narayanan
e260d2bbc9 pinctrl: qcom: ipq4019: Add IPQ4019 pinctrl support
Add pinctrl driver support for IPQ4019 platform

Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[Dropped .owner assignment]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-16 15:52:21 +01:00
Ingo Molnar
4682c211a8 * Prevent accidental deletion of EFI variables through efivarfs that
may brick machines. We use a whitelist of known-safe variables to
    allow things like installing distributions to work out of the box, and
    instead restrict vendor-specific variable deletion by making
    non-whitelist variables immutable - Peter Jones
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Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent

Pull EFI fixes from Matt Fleming:

 * Prevent accidental deletion of EFI variables through efivarfs that
   may brick machines. We use a whitelist of known-safe variables to
   allow things like installing distributions to work out of the box, and
   instead restrict vendor-specific variable deletion by making
   non-whitelist variables immutable (Peter Jones)

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-02-16 13:14:57 +01:00
Mauro Carvalho Chehab
360104e3b8 [media] media.h: get rid of MEDIA_ENT_F_CONN_TEST
Defining it as a connector was a bad idea. Remove it while it is
not too late.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-16 09:16:56 -02:00
Mauro Carvalho Chehab
9727a9545a [media] media.h: get rid of MEDIA_ENT_F_CONN_TEST
Defining it as a connector was a bad idea. Remove it while it is
not too late.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-16 09:15:23 -02:00
Alexey Kardashevskiy
d3695aa4f4 KVM: PPC: Add support for multiple-TCE hcalls
This adds real and virtual mode handlers for the H_PUT_TCE_INDIRECT and
H_STUFF_TCE hypercalls for user space emulated devices such as IBMVIO
devices or emulated PCI. These calls allow adding multiple entries
(up to 512) into the TCE table in one call which saves time on
transition between kernel and user space.

The current implementation of kvmppc_h_stuff_tce() allows it to be
executed in both real and virtual modes so there is one helper.
The kvmppc_rm_h_put_tce_indirect() needs to translate the guest address
to the host address and since the translation is different, there are
2 helpers - one for each mode.

This implements the KVM_CAP_PPC_MULTITCE capability. When present,
the kernel will try handling H_PUT_TCE_INDIRECT and H_STUFF_TCE if these
are enabled by the userspace via KVM_CAP_PPC_ENABLE_HCALL.
If they can not be handled by the kernel, they are passed on to
the user space. The user space still has to have an implementation
for these.

Both HV and PR-syle KVM are supported.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2016-02-16 13:44:26 +11:00
Chen Feng
16dc661e0e regulator: hi655x: Document for hi655x regulator
This patch adds the device tree binding documentation for
hi655x PMIC regulator.

Signed-off-by: Chen Feng <puck.chen@hisilicon.com>
Signed-off-by: Fei Wang <w.f@huawei.com>
Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-15 19:54:55 +00:00
Jonathan Tinkham
a60da83fd8 power: bq24735-charger: document 'ti,external-control' option
Implement an 'external-control' option for when the charger
shouldn't be configured by the kernel.

Signed-off-by: Jonathan Tinkham <sctincman@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2016-02-15 06:35:34 +01:00
Greg Kroah-Hartman
249f3c4fe4 Merge 4.5-rc4 into tty-next
We want the fixes in here, and this resolves a merge error in tty_io.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 14:36:04 -08:00
Greg Kroah-Hartman
c21b04f989 Merge 4.5-rc4 into driver-core-next
We want the fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 14:29:55 -08:00
Greg Kroah-Hartman
1b79dff672 Merge 4.5-rc4 into char-misc-next
We want those fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 14:25:59 -08:00
Linus Torvalds
4617c2203f Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal management fixes from Eduardo Valentin:
 "Specifics in this pull request:

   - Compilation fixes on SPEAR, and U8500 thermal drivers.
   - RCAR thermal driver now recognizes OF-thermal based thermal zones.
   - Small code rework on OF-thermal.
   - These change have been CI tested using KernelCI bot [1,2].  \o/

  I am taking over on Rui's behalf while he is out.  Happy New Chinese
  Year!

  [1] - https://kernelci.org/build/evalenti/kernel/v4.5-rc3-16-ga53b8394ec3c/
  [2] - https://kernelci.org/boot/all/job/evalenti/kernel/v4.5-rc3-16-ga53b8394ec3c/"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: cpu_cooling: fix out of bounds access in time_in_idle
  thermal: allow u8500-thermal driver to be a module
  thermal: allow spear-thermal driver to be a module
  thermal: spear: use __maybe_unused for PM functions
  thermal: rcar: enable to use thermal-zone on DT
  thermal: of: use for_each_available_child_of_node for child iterator
2016-02-13 13:05:56 -08:00
Linus Torvalds
0cbb0b9268 PCI updates for v4.5:
AER
     Flush workqueue on device remove to avoid use-after-free (Sebastian Andrzej Siewior)
 
   Broadcom iProc host bridge driver
     Allow multiple devices except on PAXC (Ray Jui)
 
   Renesas R-Car host bridge driver
     Add gen2 device tree support for r8a7793 (Simon Horman)
     Add device tree support for r8a7793 (Simon Horman)
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Merge tag 'pci-v4.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are some Renesas binding updates for PCI host controllers, a
  Broadcom fix for a regression we added in v4.5-rc1, and a fix for an
  AER use-after-free problem that can cause memory corruption.

  Summary:

  AER:
    Flush workqueue on device remove to avoid use-after-free (Sebastian Andrzej Siewior)

  Broadcom iProc host bridge driver:
    Allow multiple devices except on PAXC (Ray Jui)

  Renesas R-Car host bridge driver:
    Add gen2 device tree support for r8a7793 (Simon Horman)
    Add device tree support for r8a7793 (Simon Horman)"

* tag 'pci-v4.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: rcar: Add device tree support for r8a7793
  PCI: rcar: Add gen2 device tree support for r8a7793
  PCI: iproc: Allow multiple devices except on PAXC
  PCI/AER: Flush workqueue on device remove to avoid use-after-free
2016-02-12 15:31:22 -08:00
Javier Martinez Canillas
43f3408261 rtc: s3c: Document required clocks in the DT binding
The S3C Real Time Clock driver requires the clock and source clock to
be defined in the device node but that requirement is not documented.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-12 16:16:31 -06:00
Fabio Estevam
32e593b9c7 serial: fsl-imx-uart: Fix typo in fsl,dte-mode description
We should say "The uart works in DCE mode".

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-12 16:16:01 -06:00
Will Deacon
4aff7b8546 dt-bindings: arm, gic-v3: require that reserved cells are always 0
The arm,gic-v3 binding was written with good intentions and doesn't
enforce interrupt-cells to be 3, therefore making it easy to extend
the irq description in future if necessary:

  > Cells 4 and beyond are reserved for future use.

Unfortunately, this sentence is immediately followed up with:

  > When the 1st cell has a value of 0 or 1, cells 4 and beyond act as
  > padding, and may be ignored. It is recommended that padding cells
  > have a value of 0.

Consequently, any extensions to the PPI or SPI interrupt specifiers must
be able to work with random crap from legacy DTs, effectively
necessitating a new interrupt type in the first cell. Sigh.

This patch fixes the text so that additional, reserved cells are
required to be zero. This looks like a reasonable thing to require and
is already satisifed by the .dts files in-tree.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-02-12 16:15:25 -06:00
Linus Torvalds
0df34ad9b7 sound fixes for 4.5-rc4
In this rc, we've got more volume than previous rc, unsurprisingly;
 the majority of updates in ASoC are about Intel drivers, and another
 major changes are the continued plumbing of ALSA timer bugs revealed
 by syzkaller fuzzer.  Hopefully both settle down now.
 
 Other than that, HD-audio received a couple of code fixes as well as
 the usual quirks, and various small fixes are found for FireWire
 devices, ASoC codecs and drivers.
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Merge tag 'sound-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "In this rc, we've got more volume than previous rc, unsurprisingly;
  the majority of updates in ASoC are about Intel drivers, and another
  major changes are the continued plumbing of ALSA timer bugs revealed
  by syzkaller fuzzer.  Hopefully both settle down now.

  Other than that, HD-audio received a couple of code fixes as well as
  the usual quirks, and various small fixes are found for FireWire
  devices, ASoC codecs and drivers"

* tag 'sound-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (50 commits)
  ASoC: arizona: fref must be limited in pseudo-fractional mode
  ASoC: sigmadsp: Fix missleading return value
  ALSA: timer: Fix race at concurrent reads
  ALSA: firewire-digi00x: Drop bogus const type qualifier on dot_scrt()
  ALSA: hda - Fix bad dereference of jack object
  ALSA: timer: Fix race between stop and interrupt
  ALSA: timer: Fix wrong instance passed to slave callbacks
  ASoC: Intel: Add module tags for common match module
  ASoC: Intel: Load the atom DPCM driver only
  ASoC: Intel: Create independent acpi match module
  ASoC: Intel: Revert "ASoC: Intel: fix ACPI probe regression with Atom DPCM driver"
  ALSA: dummy: Implement timer backend switching more safely
  ALSA: hda - Fix speaker output from VAIO AiO machines
  Revert "ALSA: hda - Fix noise on Gigabyte Z170X mobo"
  ALSA: firewire-tascam: remove needless member for control and status message
  ALSA: firewire-tascam: remove a flag for controller
  ALSA: firewire-tascam: add support for FW-1804
  ALSA: firewire-tascam: fix NULL pointer dereference when model identification fails
  ALSA: hda - Fix static checker warning in patch_hdmi.c
  ASoC: Intel: Skylake: Remove autosuspend delay
  ...
2016-02-12 09:42:05 -08:00
Andrew F. Davis
c5cdf1d2b2 Documentation: tps65912: Add DT bindings for the TPS65912 PMIC
The TPS65912 PMIC contains several regulators and a GPIO controller.
Add bindings for the TPS65912 PMIC.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-02-11 16:30:22 +00:00
Javier Martinez Canillas
82c2ffeb21 [media] tvp5150: document input connectors DT bindings
The tvp5150 decoder has different input connectors so extend the device
tree binding to allow device tree source files to define the connectors
that are available on a given board.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-11 11:11:29 -02:00
Thor Thayer
d31e2e846b ARM: dts: Add Altera L2 Cache and OCRAM EDAC entries
Add the device tree entries and bindings needed to support the Altera L2
cache and On-Chip RAM EDAC. This patch relies upon an earlier patch to
declare and setup On-chip RAM properly:

  8b907c8b62ac ("arm: dts: socfpga: Add OCRAM node")

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: galak@codeaurora.org
Cc: grant.likely@linaro.org
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: ijc+devicetree@hellion.org.uk
Cc: Kumar Gala <galak@codeaurora.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux@arm.linux.org.uk
Cc: linux-doc@vger.kernel.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: m.chehab@samsung.com
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Link: http://lkml.kernel.org/r/1455132384-17108-2-git-send-email-tthayer@opensource.altera.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2016-02-11 12:29:38 +01:00
Peter Loeffler
5645a717c6 Documentation: HOWTO: remove obsolete info about regression postings
corbet@lwn.net told me that these regression postings haven't happened for
several years. So i think we can remove it.

Signed-off-by: Peter Loeffler <peter.loeffler@guruz.at>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-02-10 13:19:48 -07:00
Masanari Iida
6c01ced75c Doc: ja_JP: Fix a typo in HOWTO
This patch fix a typo witin HOWTO, which was translated in Japanese.
Replace a word "kernlehacker" with "kernelhacker".

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-02-10 13:14:37 -07:00
Masanari Iida
2e049d6132 Doc: i2c: Fix typo in Documentation/i2c
This path fix spelling typos found in Documentation/i2c.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-02-10 13:12:14 -07:00
Masanari Iida
abaa5c23d5 Doc: DocBook: Fix a typo in device-drivers.tmpl
This patch fix a spelling typo in device-drivers.tmpl.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-02-10 13:11:27 -07:00
Linus Torvalds
fb0dc5f129 Merge branch 'for-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:

 - The destruction path of cgroup objects are asynchronous and
   multi-staged and some of them ended up destroying parents before
   children leading to failures in cpu and memory controllers.  Ensure
   that parents are always destroyed after children.

 - cpuset mm node migration was performed synchronously while holding
   threadgroup and cgroup mutexes and the recent threadgroup locking
   update resulted in a possible deadlock.  The migration is best effort
   and shouldn't have been performed under those locks to begin with.
   Made asynchronous.

 - Minor documentation fix.

* 'for-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  Documentation: cgroup: Fix 'cgroup-legacy' -> 'cgroup-v1'
  cgroup: make sure a parent css isn't freed before its children
  cgroup: make sure a parent css isn't offlined before its children
  cpuset: make mm migration asynchronous
2016-02-10 11:36:19 -08:00
Mark Brown
cf0d6dd9d3 Merge remote-tracking branches 'asoc/fix/amd', 'asoc/fix/arizona', 'asoc/fix/dpcm', 'asoc/fix/dwc', 'asoc/fix/fsl' and 'asoc/fix/fsl-ssi' into asoc-linus 2016-02-10 19:23:04 +00:00
Linus Torvalds
9aece75c13 Merge branch 'for-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
 "Workqueue fixes for v4.5-rc3.

   - Remove a spurious triggering of flush dependency warning.

   - Officially break local execution guarantee of unbound work items
     and add a debug feature to flush out usages which depend on it.

   - Work around CPU -> NODE mapping becoming invalid on CPU offline.

  The branch is young but pushing out early as stable kernels are being
  affected"

* 'for-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup
  workqueue: implement "workqueue.debug_force_rr_cpu" debug feature
  workqueue: schedule WORK_CPU_UNBOUND work on wq_unbound_cpumask CPUs
  Revert "workqueue: make sure delayed work run in local cpu"
  workqueue: skip flush dependency checks for legacy workqueues
2016-02-10 11:04:05 -08:00
Peter Jones
ed8b0de5a3 efi: Make efivarfs entries immutable by default
"rm -rf" is bricking some peoples' laptops because of variables being
used to store non-reinitializable firmware driver data that's required
to POST the hardware.

These are 100% bugs, and they need to be fixed, but in the mean time it
shouldn't be easy to *accidentally* brick machines.

We have to have delete working, and picking which variables do and don't
work for deletion is quite intractable, so instead make everything
immutable by default (except for a whitelist), and make tools that
aren't quite so broad-spectrum unset the immutable flag.

Signed-off-by: Peter Jones <pjones@redhat.com>
Tested-by: Lee, Chun-Yi <jlee@suse.com>
Acked-by: Matthew Garrett <mjg59@coreos.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
2016-02-10 16:25:52 +00:00
David Wu
b6c2327577 pinctrl: rockchip: add support for the rk3399
The pinctrl of rk3399 is much different from other's,
especially the 3bits of drive strength.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-10 16:41:03 +01:00
Cornelia Huck
8a08b9c737 KVM: s390: usage hint for adapter mappings
The interface for adapter mappings was designed with code in mind
that maps each address only once; let's document this.

Otherwise, duplicate mappings are added to the list, which makes
the code ineffective and uses up the limited amount of mapping
needlessly.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-02-10 13:12:56 +01:00
David Hildenbrand
eaf2b656cf KVM: s390: add documentation of KVM_S390_VM_CRYPTO
Let's properly document KVM_S390_VM_CRYPTO and its attributes.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-02-10 13:12:55 +01:00
David Hildenbrand
aad3c1d960 KVM: s390: add documentation of KVM_S390_VM_TOD
Let's properly document KVM_S390_VM_TOD and its attributes.

Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-02-10 13:12:55 +01:00
Vladimir Zapolskiy
8ddc2dd083 [media] v4l2-ctrls: remove unclaimed v4l2_ctrl_add_ctrl() interface
v4l2_ctrl_add_ctrl() interface has no users since its introduction in
commit 0996517cf8ea ("V4L/DVB: v4l2: Add new control handling framework")
and its functionality is covered by v4l2_ctrl_new() and derivative
interfaces, so it is safe to remove the interface from the kernel.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-10 09:34:00 -02:00
Hans Verkuil
ed679b8a19 [media] DocBook media: document the new V4L2_CID_DV_RX/TX_IT_CONTENT_TYPE controls
Document these new controls.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-10 09:31:38 -02:00
Uwe Kleine-König
cf68d85529 driver-core: platform: fix typo in documentation for multi-driver helper
The function name in the documentation lacked an 's'. Add it.

Fixes: dbe2256ddd8e ("driver-core: platform: Provide helpers for multi-driver modules")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:39:33 -08:00
Gabriel Somlo
92aed5d6ba devicetree: update documentation for fw_cfg ARM bindings
Remove fw_cfg hardware interface details from
Documentation/devicetree/bindings/arm/fw-cfg.txt,
and replace them with a pointer to the authoritative
documentation in the QEMU source tree.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Cc: Laszlo Ersek <lersek@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:37:39 -08:00
Gabriel Somlo
246c46ebae firmware: create directory hierarchy for sysfs fw_cfg entries
Each fw_cfg entry of type "file" has an associated 56-char,
nul-terminated ASCII string which represents its name. While
the fw_cfg device doesn't itself impose any specific naming
convention, QEMU developers have traditionally used path name
semantics (i.e. "etc/acpi/rsdp") to descriptively name the
various fw_cfg "blobs" passed into the guest.

This patch attempts, on a best effort basis, to create a
directory hierarchy representing the content of fw_cfg file
names, under /sys/firmware/qemu_fw_cfg/by_name.

Upon successful creation of all directories representing the
"dirname" portion of a fw_cfg file, a symlink will be created
to represent the "basename", pointing at the appropriate
/sys/firmware/qemu_fw_cfg/by_key entry. If a file name is not
suitable for this procedure (e.g., if its basename or dirname
components collide with an already existing dirname component
or basename, respectively) the corresponding fw_cfg blob is
skipped and will remain available in sysfs only by its selector
key value.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:37:39 -08:00
Gabriel Somlo
75f3e8e47f firmware: introduce sysfs driver for QEMU's fw_cfg device
Make fw_cfg entries of type "file" available via sysfs. Entries
are listed under /sys/firmware/qemu_fw_cfg/by_key, in folders
named after each entry's selector key. Filename, selector value,
and size read-only attributes are included for each entry. Also,
a "raw" attribute allows retrieval of the full binary content of
each entry.

The fw_cfg device can be instantiated automatically from ACPI or
the Device Tree, or manually by using a kernel module (or command
line) parameter, with a syntax outlined in the documentation file.

Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:37:39 -08:00
Sudeep Dutt
c74c9318a3 misc: mic: MIC host and card driver changes to enable VOP
This patch modifies the MIC host and card drivers to start using the
VOP driver. The MIC host and card drivers now implement the VOP bus
operations and register a VOP device on the VOP bus. MIC driver stack
documentation is also updated to include the new VOP driver.

Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:32:37 -08:00
Cory Tusar
862a4a7836 Documentation: devicetree: Add DT bindings to eeprom_93xx46 driver.
This commit documents bindings to be added to the eeprom_93xx46 driver
which will allow:

  - Device word size and read-only attributes to be specified.
  - A device-specific compatible string for use with Atmel AT93C46D
    EEPROMs.
  - Specifying a GPIO line to function as a 'select' or 'enable' signal
    prior to accessing the EEPROM.

Signed-off-by: Cory Tusar <cory.tusar@pid1solutions.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Chris Healy <chris.healy@zii.aero>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:27:45 -08:00
Tejun Heo
f303fccb82 workqueue: implement "workqueue.debug_force_rr_cpu" debug feature
Workqueue used to guarantee local execution for work items queued
without explicit target CPU.  The guarantee is gone now which can
break some usages in subtle ways.  To flush out those cases, this
patch implements a debug feature which forces round-robin CPU
selection for all such work items.

The debug feature defaults to off and can be enabled with a kernel
parameter.  The default can be flipped with a debug config option.

If you hit this commit during bisection, please refer to 041bd12e272c
("Revert "workqueue: make sure delayed work run in local cpu"") for
more information and ping me.

Signed-off-by: Tejun Heo <tj@kernel.org>
2016-02-09 17:59:38 -05:00
Kuninori Morimoto
8b477ea563 thermal: rcar: enable to use thermal-zone on DT
This patch enables to use thermal-zone on DT if it was calles as
"renesas,rcar-thermal-gen2".
Previous style (= non thermal-zone) is still supported by
"renesas,rcar-thermal" to keep compatibility for "git bisect".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-02-09 14:05:11 -08:00