Commit Graph

22242 Commits

Author SHA1 Message Date
Ingo Molnar 3a7651e683 Linux 4.2-rc5
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Merge branch 'locking/urgent', tag 'v4.2-rc5' into locking/core, to pick up fixes before applying new changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-03 10:52:25 +02:00
Chanwoo Choi a622789aee PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2
This patch updates the documentation to include the information of PPMUv2.
The PPMUv2 is used for Exynos5433 and Exynos7420 to monitor the performance
of each IP in Exynos SoC.

Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-08-03 14:33:52 +09:00
Javier Martinez Canillas 9b0a186262 PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding
The exynos-ppmu driver is only a clock consumer and not a clock provider
but its Device Tree binding listed #clock-cells as an optional property.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
2015-08-03 13:58:32 +09:00
Linus Torvalds 3f6d9e0896 dmaengine fixes for 4.2-rc5
We had a regression due to reuse of descriptor so we have reverted that.
   Rest are driver fixes
      at_hdmac and at_xdmac for residue, trannfer width, and channel config
      pl330 final fix for dma fails and overflow issue
      xgene resouce map fix
      mv_xor big endian op fix
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Merge tag 'dmaengine-fix-4.2-rc5' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "We had a regression due to reuse of descriptor so we have reverted
  that.

  The rest are driver fixes:

   - at_hdmac and at_xdmac for residue, trannfer width, and channel config
   - pl330 final fix for dma fails and overflow issue
   - xgene resouce map fix
   - mv_xor big endian op fix"

* tag 'dmaengine-fix-4.2-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
  Revert "dmaengine: virt-dma: don't always free descriptor upon completion"
  dmaengine: mv_xor: fix big endian operation in register mode
  dmaengine: xgene-dma: Fix the resource map to handle overlapping
  dmaengine: at_xdmac: fix transfer data width in at_xdmac_prep_slave_sg()
  dmaengine: at_hdmac: fix residue computation
  dmaengine: at_xdmac: fix bug about channel configuration
  dmaengine: pl330: Really fix choppy sound because of wrong residue calculation
  dmaengine: pl330: Fix overflow when reporting residue in memcpy
2015-08-01 12:47:04 -07:00
Roger Quadros c934b36127 phy: ti-pipe3: i783 workaround for SATA lockup after dpll unlock/relock
SATA_PLL_SOFT_RESET bit of CTRL_CORE_SMA_SW_0 must be toggled
between a SATA DPLL unlock and re-lock to prevent SATA lockup.

Introduce a new DT parameter 'syscon-pllreset' to provide the syscon
regmap access to this register which sits in the control module.

If the register is not provided we fallback to the old behaviour
i.e. SATA DPLL refclk will not be disabled and we prevent SoC low
power states.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-08-01 15:52:58 +05:30
David S. Miller 5510b3c2a1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	arch/s390/net/bpf_jit_comp.c
	drivers/net/ethernet/ti/netcp_ethss.c
	net/bridge/br_multicast.c
	net/ipv4/ip_fragment.c

All four conflicts were cases of simple overlapping
changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-31 23:52:20 -07:00
Tom Herbert b56774163f ipv6: Enable auto flow labels by default
Initialize auto_flowlabels to one. This enables automatic flow labels,
individual socket may disable them using the IPV6_AUTOFLOWLABEL socket
option.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-31 17:07:12 -07:00
Tom Herbert 42240901f7 ipv6: Implement different admin modes for automatic flow labels
Change the meaning of net.ipv6.auto_flowlabels to provide a mode for
automatic flow labels generation. There are four modes:

0: flow labels are disabled
1: flow labels are enabled, sockets can opt-out
2: flow labels are allowed, sockets can opt-in
3: flow labels are enabled and enforced, no opt-out for sockets

np->autoflowlabel is initialized according to the sysctl value.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-31 17:07:11 -07:00
Linus Torvalds c6fd4fc708 sound fixes for 4.2-rc5
This became a relative big update as it includes the collected
 ASoC fixes.  There are a few fixes in ASoC core side, mostly for DAPM
 and the new topology API.  The rest are various ASoC driver-specific
 fixes, as well as the usual HD-audio and USB-audio quirks.
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Merge tag 'sound-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This became a relative big update as it includes the collected ASoC
  fixes.  There are a few fixes in ASoC core side, mostly for DAPM and
  the new topology API.  The rest are various ASoC driver-specific
  fixes, as well as the usual HD-audio and USB-audio quirks"

* tag 'sound-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
  ALSA: hda - Fix MacBook Pro 5,2 quirk
  ALSA: hda - Fix race between PM ops and HDA init/probe
  ALSA: usb-audio: add dB range mapping for some devices
  ALSA: hda - Apply a fixup to Dell Vostro 5480
  ALSA: hda - Add pin quirk for the headset mic jack detection on Dell laptop
  ALSA: hda - Apply fixup for another Toshiba Satellite S50D
  ALSA: fireworks: add support for AudioFire2 quirk
  ALSA: hda - Fix the headset mic that will not work on Dell desktop machine
  ALSA: hda - fix cs4210_spdif_automute()
  ASoC: pcm1681: Fix setting de-emphasis sampling rate selection
  ASoC: ssm4567: Keep TDM_BCLKS in ssm4567_set_dai_fmt
  ASoC: sgtl5000: Fix up define for SGTL5000_SMALL_POP
  ASoC: dapm: Don't add prefix to widget stream name
  ASoC: rt5645: Check if codec is initialized in workqueue handler
  ASoC: Intel: Get correct usage_count value to load firmware
  ASoC: topology: Fix to add dapm mixer info
  ASoC: zx: spdif: Fix devm_ioremap_resource return value check
  ASoC: zx: i2s: Fix devm_ioremap_resource return value check
  ASoC: mediatek: Use platform_of_node for machine drivers
  ASoC: Free card DAPM context on snd_soc_instantiate_card() error path
  ...
2015-07-31 17:00:25 -07:00
Geert Uytterhoeven 885fb909dc PM / Domains: Correct unit address in power-controller example
In example 2 of the generic PM domains DT bindings, the unit address of
the device node representing the child power controller doesn't match
its "reg" property. Correct it.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-31 23:31:52 +02:00
Rameshwar Prasad Sahu cda8e93719 dmaengine: xgene-dma: Fix the resource map to handle overlapping
There is an overlap in dma ring cmd csr region due to sharing of ethernet
ring cmd csr region. This patch fix the resource overlapping by mapping
the entire dma ring cmd csr region.

Signed-off-by: Rameshwar Prasad Sahu <rsahu@apm.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-07-31 20:33:43 +05:30
Peter Chen f811a38300 doc: usb: gadget-testing: using the updated testusb.c
testusb.c at http://www.linux-usb.org/usbtest/ is out of date,
using the one at the kernel source folder.

Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-31 09:02:07 -05:00
Peter Chen 4bc58eb16b Doc: ABI: testing: configfs-usb-gadget-sourcesink
Fix the name of attribute

Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-31 09:02:07 -05:00
Peter Chen 8cd5062682 Doc: ABI: testing: configfs-usb-gadget-loopback
Fix the name of attribute

Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-31 09:02:06 -05:00
Will Deacon b6c084d7aa ARM: perf: extend interrupt-affinity property for PPIs
On systems containing multiple, heterogeneous clusters we need a way to
associate a PMU "device" with the CPU(s) on which it exists. For PMUs
that signal overflow with SPIs, this relationship is determined via the
"interrupt-affinity" property, which contains a list of phandles to CPU
nodes for the PMU. For PMUs using PPIs, the per-cpu nature of the
interrupt isn't enough to determine the set of CPUs which actually
contain the device.

This patch allows the interrupt-affinity property to be specified on a
PMU node irrespective of the interrupt type. For PPIs, it identifies
the set of CPUs signalling the PPI in question.

Tested-by: Stephen Boyd <sboyd@codeaurora.org> # Krait PMU
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-07-31 15:01:14 +01:00
Punnaiah Choudary Kalluri 1837649fd3 Documentation: devicetree: Add ECC information to synopsys ddr controller
Add ECC information to synopsys ddr memory controller.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-07-31 10:50:05 +02:00
Hangbin Liu 8013d1d7ea net/ipv6: add sysctl option accept_ra_min_hop_limit
Commit 6fd99094de ("ipv6: Don't reduce hop limit for an interface")
disabled accept hop limit from RA if it is smaller than the current hop
limit for security stuff. But this behavior kind of break the RFC definition.

RFC 4861, 6.3.4.  Processing Received Router Advertisements
   A Router Advertisement field (e.g., Cur Hop Limit, Reachable Time,
   and Retrans Timer) may contain a value denoting that it is
   unspecified.  In such cases, the parameter should be ignored and the
   host should continue using whatever value it is already using.

   If the received Cur Hop Limit value is non-zero, the host SHOULD set
   its CurHopLimit variable to the received value.

So add sysctl option accept_ra_min_hop_limit to let user choose the minimum
hop limit value they can accept from RA. And set default to 1 to meet RFC
standards.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-30 15:56:40 -07:00
Ivan T. Ivanov 6f98f545b0 usb: phy: msm: Add D+/D- lines route control
apq8016-sbc board is using Dual SPDT USB Switch (TC7USB40MU),
witch is controlled by GPIO to de/multiplex D+/D- USB lines to
USB2513B Hub and uB connector. Add support for this.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-30 11:43:36 -05:00
Chris Metcalf a0ddef81f4 tile: enable full SECCOMP support
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-07-30 12:32:16 -04:00
Linus Torvalds 0a552051a4 Two patches headed for -stable.
nct7802: Fix integer overflow seen when writing voltage limits
 nct7904: Rename pwm attributes to match hwmon ABI
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Merge tag 'hwmon-for-linus-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 "Two patches headed for -stable.

  nct7802: Fix integer overflow seen when writing voltage limits
  nct7904: Rename pwm attributes to match hwmon ABI"

* tag 'hwmon-for-linus-v4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct7802) Fix integer overflow seen when writing voltage limits
  hwmon: (nct7904) Rename pwm attributes to match hwmon ABI
2015-07-30 08:04:19 -07:00
Guenter Roeck 0d6aaffc3a hwmon: (nct7904) Rename pwm attributes to match hwmon ABI
pwm attributes have well defined names, which should be used.

Cc: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru>
Cc: stable@vger.kernel.org #v4.1+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2015-07-29 20:06:46 -07:00
WingMan Kwok 71382bc043 net: netcp: Fixes efuse mac addr swap on k2e and k2l
On some of the K2E and K2L platforms, the two DWORDs in
efuse occupied by the pre-programmed mac address for
slave port 1 are swapped.  To workaround this issue,
this patch adds a new define NETCP_EFUSE_ADDR_SWAP (2)
which signifies the occurrence of such swapping so that
the driver can take proper action.  The flag can be
enabled in the corresponding netcp interface dts binding
as efuse-mac = <2>  under the corresponding netcp
interface node.

Signed-off-by: WingMan Kwok <w-kwok2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 17:16:03 -07:00
Tim Bird ee2b7f60a5 ARM: dts: qcom: Add binding for the qcom coincell charger
This binding is used to configure the driver for the coincell charger
found in Qualcomm PMICs.

Signed-off-by: Tim Bird <tim.bird@sonymobile.com>
Reviewed-by: Andy Gross <agross@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-29 13:37:18 -07:00
Ray Jui 6aad8bf993 arm64: dts: Add Broadcom North Star 2 support
Add Broadcom NS2 device tree binding document. Also add initial device
tree dtsi for Broadcom North Star 2 (NS2) SoC and board support for NS2
SVK board

Signed-off-by: Jon Mason <jonmason@broadcom.com>
Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-29 22:07:11 +02:00
Bjorn Andersson ba68227e61 devicetree: soc: Add Qualcomm SMD based RPM DT binding
Add binding documentation for the Qualcomm Resource Power Manager (RPM)
using shared memory (Qualcomm SMD) as transport mechanism. This is found
in 8974 and newer based devices.

The binding currently describes the rpm itself and the regulator
subnodes.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-07-29 14:13:48 -05:00
Bjorn Andersson 72c10fef98 soc: qcom: Add device tree binding for Shared Memory Device
Add device tree binding documentation for the Qualcomm Shared Memory
Device, used for communication between the various CPUs in the Qualcomm
SoCs.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-07-29 14:13:48 -05:00
Ard Biesheuvel 6c020ea8dc arm64/Documentation: clarify wording regarding memory below the Image
Clarify that the memory below the start of the image but inside the
region covered by the linear mapping has no special significance to
the kernel, and may be used by the firmware provided that it is marked
as reserved.

Also, fix up some whitespace errors.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-07-29 18:32:10 +01:00
Linus Torvalds 733db573a6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "This series is larger than what I'd normally be conformable with
  sending for a -rc5 PULL request..

  However, the bulk of the series is localized to qla2xxx target
  specific fixes that address a number of real-world correctness issues,
  that have been outstanding on the list for ~6 weeks now.  They where
  submitted + verified + acked by the HW LLD vendor, contributed by a
  major production customer of the code, and are marked for v3.18.y
  stable code.

  That said, I don't see a good reason to wait another month to get
  these fixes into mainline.

  Beyond the qla2xx specific fixes, this series also includes:

   - bugfix for a long standing use-after-free in iscsi-target during
     TPG shutdown + demo-mode sessions.

   - bugfix for a >= v4.0 regression OOPs in iscsi-target during a
     iscsi_start_kthreads() failure.

   - bugfix for a >= v4.0 regression hang in iscsi-target for iser
     explicit session/connection logout.

   - bugfix for a iser-target bug where a early CMA REJECTED status
     during login triggers a NULL pointer dereference OOPs.

   - bugfixes for a handful of v4.2-rc1 specific regressions related to
     the larger set of recent backend configfs attribute changes.

  A big thanks to QLogic + Pure Storage for the qla2xxx target bugfixes"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (28 commits)
  Documentation/target: Fix tcm_mod_builder.py build breakage
  iser-target: Fix REJECT CM event use-after-free OOPs
  iscsi-target: Fix iser explicit logout TX kthread leak
  iscsi-target: Fix iscsit_start_kthreads failure OOPs
  iscsi-target: Fix use-after-free during TPG session shutdown
  qla2xxx: terminate exchange when command is aborted by LIO
  qla2xxx: drop cmds/tmrs arrived while session is being deleted
  qla2xxx: disable scsi_transport_fc registration in target mode
  qla2xxx: added sess generations to detect RSCN update races
  qla2xxx: Abort stale cmds on qla_tgt_wq when plogi arrives
  qla2xxx: delay plogi/prli ack until existing sessions are deleted
  qla2xxx: cleanup cmd in qla workqueue before processing TMR
  qla2xxx: kill sessions/log out initiator on RSCN and port down events
  qla2xxx: fix command initialization in target mode.
  qla2xxx: Remove msleep in qlt_send_term_exchange
  qla2xxx: adjust debug flags
  qla2xxx: release request queue reservation.
  qla2xxx: Add flush after updating ATIOQ consumer index.
  qla2xxx: Enable target mode for ISP27XX
  qla2xxx: Fix hardware lock/unlock issue causing kernel panic.
  ...
2015-07-29 09:54:40 -07:00
Li Jun b5513dede7 doc: dt-binding: usb: add otg related properties
Add otg version, srp, hnp and adp support for usb OTG port, then those OTG
features don't have to be decided by usb gadget drivers.

Signed-off-by: Li Jun <jun.li@freescale.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:20 -05:00
Hans de Goede d91de093d9 usb: musb: sunxi: Add support for musb controller in A33 SoC
The A33 SoC uses the same musb controller as found on the A31 and later,
but allwinner has removed the configdata register, this commit adds special
handling for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:20 -05:00
Hans de Goede 132e237757 usb: musb: sunxi: Add support for musb controller in A31 SoC
The A31 SoC uses the same musb controller as found in earlier SoCs, but it
is hooked up slightly different. Its SRAM is private and no longer controlled
through the SRAM controller, and its reset is controlled via a separate
reset controller. This commit adds support for this setup.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:20 -05:00
Hans de Goede 744543c599 usb: musb: sunxi: Add support for the Allwinner sunxi musb controller
This is based on initial code to get the Allwinner sunxi musb controller
supported by Chen-Yu Tsai and Roman Byshko.

This adds support for the Allwinner sunxi musb controller in both host only
and otg mode. Peripheral only mode is not supported, as no boards use that.

This has been tested on a cubietruck (A20 SoC) and an UTOO P66 tablet
(A13 SoC) with a variety of devices in host mode and with the g_serial gadget
driver in peripheral mode, plugging otg / host cables in/out a lot of times
in all possible imaginable plug orders.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:20 -05:00
Ivan T. Ivanov 351169933e usb: phy: qcom: New APQ8016/MSM8916 USB transceiver driver
Driver handles PHY initialization, clock management, power
management and workarounds required after resetting the hardware.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-07-29 09:59:19 -05:00
Christoph Hellwig 4246a0b63b block: add a bi_error field to struct bio
Currently we have two different ways to signal an I/O error on a BIO:

 (1) by clearing the BIO_UPTODATE flag
 (2) by returning a Linux errno value to the bi_end_io callback

The first one has the drawback of only communicating a single possible
error (-EIO), and the second one has the drawback of not beeing persistent
when bios are queued up, and are not passed along from child to parent
bio in the ever more popular chaining scenario.  Having both mechanisms
available has the additional drawback of utterly confusing driver authors
and introducing bugs where various I/O submitters only deal with one of
them, and the others have to add boilerplate code to deal with both kinds
of error returns.

So add a new bi_error field to store an errno value directly in struct
bio and remove the existing mechanisms to clean all this up.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-07-29 08:55:15 -06:00
Christian Borntraeger f2d2eb9d05 KVM: s390: remove outdated documentation
The old Documentation/s390/kvm.txt file is either
outdated or described in Documentation/virtual/kvm/api.txt.
Let's get rid of it.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
2015-07-29 11:02:35 +02:00
Joachim Eastwood 75fee59550 stmmac: remove setup/free glue callbacks
As all dwmac-* drivers have been converted to have a proper probe
function the setup callback can now be removed. Also remove the
free callback that wasn't used by any driver.

New dwmac-* drivers should implement standard probe and remove
functions to preform any needed setup and teardown.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 00:13:25 -07:00
Joachim Eastwood 0933328a1b stmmac: remove unused stmmac_of_data struct
As dwmac-* drivers that need OF match have been converted
to use their own internal OF match data structure this can
now be removed.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-29 00:13:24 -07:00
Lars Persson 5b8b64843a dwc_eth_qos: Add Synopsys DWC Ethernet QoS bindings
Add device tree binding documentation for the Synopsys DWC Ethernet
QoS driver supporting revision 4.10a of the hardware IP.

Signed-off-by: Lars Persson <larper@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-28 23:55:00 -07:00
Stephen Boyd 19aab27308 Merge branch 'clk-determine-rate-struct' into clk-next
* clk-determine-rate-struct:
  clk: fix some determine_rate implementations
  clk: change clk_ops' ->determine_rate() prototype
2015-07-28 11:51:30 -07:00
Olof Johansson 0c21bcb616 - ARM: mediatek: Add regmap to mediatek Kconfig
- soc: mediatek: Drop owner assignment from platform_driver
 - soc: Mediatek: Add SCPSYS power domain driver
 - dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
 - soc: mediatek: Add infracfg misc driver support
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Merge tag 'v4.2-next-soc' of https://github.com/mbgg/linux-mediatek into next/soc

- ARM: mediatek: Add regmap to mediatek Kconfig
- soc: mediatek: Drop owner assignment from platform_driver
- soc: Mediatek: Add SCPSYS power domain driver
- dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
- soc: mediatek: Add infracfg misc driver support

* tag 'v4.2-next-soc' of https://github.com/mbgg/linux-mediatek:
  ARM: mediatek: Add regmap to mediatek Kconfig
  soc: mediatek: Drop owner assignment from platform_driver
  soc: Mediatek: Add SCPSYS power domain driver
  dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
  soc: mediatek: Add infracfg misc driver support

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28 18:17:31 +02:00
Olof Johansson 55e3cfc5f9 - ARM: dts: mediatek: add mt6580 basic support
- Document: DT: Add bindings for mediatek MT6580 SoC Platform
 - ARM: dts: mediatek mt8135: Use real UART clocks
 - ARM: dts: mt8135-evbp1: Add PMIC support
 - ARM: dts: mt8135: Add pmic wrapper nodes
 - ARM: dts: mediatek: Enable clock support for Mediatek MT8135.
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Merge tag 'v4.2-next-dts' of https://github.com/mbgg/linux-mediatek into next/dt

- ARM: dts: mediatek: add mt6580 basic support
- Document: DT: Add bindings for mediatek MT6580 SoC Platform
- ARM: dts: mediatek mt8135: Use real UART clocks
- ARM: dts: mt8135-evbp1: Add PMIC support
- ARM: dts: mt8135: Add pmic wrapper nodes
- ARM: dts: mediatek: Enable clock support for Mediatek MT8135.

* tag 'v4.2-next-dts' of https://github.com/mbgg/linux-mediatek:
  ARM: dts: mediatek: add mt6580 basic support
  Document: DT: Add bindings for mediatek MT6580 SoC Platform
  ARM: dts: mediatek mt8135: Use real UART clocks
  ARM: dts: mt8135-evbp1: Add PMIC support
  ARM: dts: mt8135: Add pmic wrapper nodes
  ARM: dts: mediatek: Enable clock support for Mediatek MT8135.

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28 18:16:36 +02:00
Olof Johansson af429d9ebf - arm64: dts: mediatek: add mt6795 support
- Document: DT: Add bindings for mediatek MT6795 SoC Platform
 - arm64: dts: mediatek: Add MT8173 MMC dts
 - arm64: dts: mt8173: Add afe device node
 - arm64: dts: mt8173-evb: Add PMIC support
 - dts: mt8173-evb: Add da9211 to i2c1
 - ARM: dts: mt8173: support arm64 cpuidle-dt
 - ARM64: MediaTek MT8173: Add SCPSYS device node
 - arm64: dts: mt8173: Add I2C device node
 - arm64: dts: mt8173: Add watchdog device node
 - arm64: dts: mt8173: Add PMIC wrapper device node
 - arm64: dts: mt8173: Use real clock for UARTs
 - arm64: dts: mt8173: Add clock controller device nodes
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Merge tag 'v4.2-next-arm64' of https://github.com/mbgg/linux-mediatek into next/arm64

- arm64: dts: mediatek: add mt6795 support
- Document: DT: Add bindings for mediatek MT6795 SoC Platform
- arm64: dts: mediatek: Add MT8173 MMC dts
- arm64: dts: mt8173: Add afe device node
- arm64: dts: mt8173-evb: Add PMIC support
- dts: mt8173-evb: Add da9211 to i2c1
- ARM: dts: mt8173: support arm64 cpuidle-dt
- ARM64: MediaTek MT8173: Add SCPSYS device node
- arm64: dts: mt8173: Add I2C device node
- arm64: dts: mt8173: Add watchdog device node
- arm64: dts: mt8173: Add PMIC wrapper device node
- arm64: dts: mt8173: Use real clock for UARTs
- arm64: dts: mt8173: Add clock controller device nodes

* tag 'v4.2-next-arm64' of https://github.com/mbgg/linux-mediatek:
  arm64: dts: mediatek: add mt6795 support
  Document: DT: Add bindings for mediatek MT6795 SoC Platform
  arm64: dts: mediatek: Add MT8173 MMC dts
  arm64: dts: mt8173: Add afe device node
  arm64: dts: mt8173-evb: Add PMIC support
  dts: mt8173-evb: Add da9211 to i2c1
  ARM: dts: mt8173: support arm64 cpuidle-dt
  ARM64: MediaTek MT8173: Add SCPSYS device node
  arm64: dts: mt8173: Add I2C device node
  arm64: dts: mt8173: Add watchdog device node
  arm64: dts: mt8173: Add PMIC wrapper device node
  arm64: dts: mt8173: Use real clock for UARTs
  arm64: dts: mt8173: Add clock controller device nodes

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28 18:16:13 +02:00
Boris Brezillon 0817b62cc0 clk: change clk_ops' ->determine_rate() prototype
Clock rates are stored in an unsigned long field, but ->determine_rate()
(which returns a rounded rate from a requested one) returns a long
value (errors are reported using negative error codes), which can lead
to long overflow if the clock rate exceed 2Ghz.

Change ->determine_rate() prototype to return 0 or an error code, and pass
a pointer to a clk_rate_request structure containing the expected target
rate and the rate constraints imposed by clk users.

The clk_rate_request structure might be extended in the future to contain
other kind of constraints like the rounding policy, the maximum clock
inaccuracy or other things that are not yet supported by the CCF
(power consumption constraints ?).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
CC: Jonathan Corbet <corbet@lwn.net>
CC: Tony Lindgren <tony@atomide.com>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: "Emilio López" <emilio@elopez.com.ar>
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
CC: Peter De Schrijver <pdeschrijver@nvidia.com>
CC: Prashant Gaikwad <pgaikwad@nvidia.com>
CC: Stephen Warren <swarren@wwwdotorg.org>
CC: Thierry Reding <thierry.reding@gmail.com>
CC: Alexandre Courbot <gnurou@gmail.com>
CC: linux-doc@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
CC: linux-omap@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: linux-tegra@vger.kernel.org
[sboyd@codeaurora.org: Fix parent dereference problem in
__clk_determine_rate()]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[sboyd@codeaurora.org: Folded in fix from Heiko for fixed-rate
clocks without parents or a rate determining op]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-27 18:12:01 -07:00
Greg Kroah-Hartman 722b262c96 Merge 4.2-rc4 into usb-next
We want the USB fixes that went into that release in this branch as
well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-27 11:15:16 -07:00
Greg Kroah-Hartman 92311e46ec Merge 4.2-rc4 into tty-next
Other serial driver work wants to build on patches now in 4.2-rc4 so
merge the branch so this can properly happen.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-27 11:12:39 -07:00
Greg Kroah-Hartman 6e64e22449 Merge 4.2-rc4 into staging-next
We want the iio and other fixes in this branch as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-27 11:10:05 -07:00
Alban Bedel 3b6e644e65 DEVICETREE: Misc fix for the AR7100 SPI controller binding
Fix the clocks property documentation and use lower case for
hex values in the example.

Signed-off-by: Alban Bedel <albeu@free.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
2015-07-27 08:24:39 -05:00
Rabin Vincent d705073cda gpio: etraxfs: add support for ARTPEC-3
Add support for the GIO block in the ARTPEC-3 SoC.  The basic
functionality is essentialy the same as the version in the ETRAX FS,
except for a different set of ports, including a read-only port.

Cc: devicetree@vger.kernel.org
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27 15:02:23 +02:00
Maxime Ripard d8323c6b03 pinctrl: sunxi: Add custom irq_domain_ops
The current interrupt parsing code was working by accident, because the
default was actually parsing the first node of interrupts.

While that was mostly working (and the flags were actually ignored), this
binding has never been documented, and doesn't work with SoCs that have
multiple interrupt banks anyway.

Add a proper interrupt xlate function, that uses the same description than
the GPIOs (<bank> <pin> <flags>), that will make things less confusing.

The EINT number will still be used as the hwirq number, but won't be
exposed through the DT.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27 14:56:30 +02:00
Ulrich Hecht 8cd14702be gpio: rcar: Add r8a7795 (R-Car H3) support
R-Car Gen3's GPIO blocks are identical to Gen2's in every respect.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27 14:51:40 +02:00
Olof Johansson a02270836b STi DT update for v4.3, round 1.
Highlights:
 -----------
  - Add pinctrl configurations for transport stream channels
  - Add cpu-release-addr properties to STiH407 and STiH418
  - Add PWM regulator support so STIH407 family
  - Add BDISP node to STiH407
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Merge tag 'sti-dt-for-v4.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti into next/dt

STi DT update for v4.3, round 1.

Highlights:
-----------
 - Add pinctrl configurations for transport stream channels
 - Add cpu-release-addr properties to STiH407 and STiH418
 - Add PWM regulator support so STIH407 family
 - Add BDISP node to STiH407

* tag 'sti-dt-for-v4.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti:
  ARM: DT: STiH410: Add bdisp dt nodes
  ARM: STi: STiH407: Add PWM Regulator node
  ARM: STi: STiH407: Move PWM nodes STiH407 => STiH407-family
  ARM: STi: DT: Rename st_pll3200c32_407_c0_x into st_pll3200c32_cx_x
  ARM: STi: DT: STiH418: Add cpu-release-addr dt property.
  ARM: STi: DT: STiH407: Add cpu-release-addr dt property.
  ARM: STi: DT: Add STiH407 family mtsin0 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsout1 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsout0 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsin5 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsin4 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsin3 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsin2 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsin1 pinctrl configuration
  ARM: STi: DT: Add STiH407 family tsin0 pinctrl configuration

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-27 14:23:46 +02:00
Uwe Kleine-König bb379ceb8d dt-bindings: gpio: document bindings supported by gpio-mpc8xxx.c
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27 13:53:37 +02:00
Baruch Siach cbc59e26e9 pinctrl: dt-binding: document Conexant CX92755 SoC
Add pinctrl device tree binding documentation for the General Purpose Pin
Mapping module of the Conexant CX92755 SoC.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-27 11:46:30 +02:00
Hans de Goede 8665c18bec phy-sun4i-usb: Add support for monitoring vbus via a power-supply
On some boards there is no vbus_det gpio pin, instead vbus-detection for
otg can be done via the pmic.

This commit adds support for monitoring vbus_det via the power_supply
exported by the pmic, enabling support for otg on these boards.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-07-25 15:45:47 +05:30
Hans de Goede fc1f45ed30 phy-sun4i-usb: Add support for the usb-phys on the sun8i-a33 SoC
The usb-phys on the sun8i-a33 SoC are mostly the same as sun8i-a23 but for
some reason (hw bug?) the phyctl register was moved to a different address
and is not initialized to 0 on reset.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-07-25 15:45:47 +05:30
Hans de Goede 123dfdbcfa phy-sun4i-usb: Add support for the usb-phys on the sun8i-a23 SoC
The usb-phys on the sun8i-a23 SoC have the same setup wrt clocks as on the
sun6i-a31 SoC, but there are only 2 instead of 3 like on the sun5i-a13 SoC.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-07-25 15:45:47 +05:30
Hans de Goede d2332303ef phy-sun4i-usb: Add id and vbus detection support for the otg phy (phy0)
The usb0 phy is connected to an OTG controller, and as such needs some special
handling:

1) It allows explicit control over the pullups, enable these on phy_init and
disable them on phy_exit.

2) It has bits to signal id and vbus detect to the musb-core, add support for
for monitoring id and vbus detect gpio-s for use in dual role mode, and set
these bits to the correct values for operating in host only mode when no
gpios are specified in the devicetree.

While updating the devicetree binding documentation also add documentation
for the sofar undocumented usage of regulators for vbus for all 3 phys.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-07-25 15:45:47 +05:30
Joachim Eastwood 2d69a115a9 phy: dt bindings: add NXP LPC18xx/43xx USB OTG PHY bindings
Add binding documentation for NXP LPC18xx/43xx USB OTG PHY. This
PHY can found on NXP LPC18xx and LPC43xx devices with USB support.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-07-25 15:45:46 +05:30
Sebastian Herbszt c4cfdd81c8 Documentation/target: Fix tcm_mod_builder.py build breakage
Fix build breakage and set the protocol identifier based on the parameter.

Fixes: 9ac8928e6a ("target: simplify the target template registration API")
Fixes: e4aae5af81 ("target: change core_tpg_register prototype")

Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-07-24 17:48:55 -07:00
Linus Torvalds 1e63dca76a MMC core:
- Fix a reference inbalance issue for power_ro_lock_show() sysfs handler
 
 MMC host:
  - omap_hsmmc: Fix IRQ errorhandling for CD, DTO, and CRC
  - sdhci: Prevent a kernel panic while using DMA
  - mtk-sd: Let it depend on HAS_DMA to prevent build errors
  - sdhci-esdhc: Make 8BIT bus work
  - sdhci-esdhc-imx: Fix some regressions for DT based platforms
  - sdhci-pxav3: Fix a regression for DT based platforms
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Merge tag 'mmc-4.2-rc3' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fixes from Ulf Hansson:
 "Here are some mmc fixes intended for v4.2 rc4.

  Note, most of the changes are for the sdhci-esdhc-imx controller,
  which also required us to modify some related DTS files.  Those
  changes have been acked by the SoC maintainer.

  MMC core:
   - Fix a reference inbalance issue for power_ro_lock_show() sysfs handler

  MMC host:
   - omap_hsmmc: Fix IRQ errorhandling for CD, DTO, and CRC
   - sdhci: Prevent a kernel panic while using DMA
   - mtk-sd: Let it depend on HAS_DMA to prevent build errors
   - sdhci-esdhc: Make 8BIT bus work
   - sdhci-esdhc-imx: Fix some regressions for DT based platforms
   - sdhci-pxav3: Fix a regression for DT based platforms"

* tag 'mmc-4.2-rc3' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: sdhci-pxav3: fix platform_data is not initialized
  dts: mmc: fsl-imx-esdhc: remove fsl,cd-controller support
  mmc: sdhci-esdhc-imx: clear f_max in boarddata
  mmc: sdhci-esdhc-imx: remove duplicated dts parsing
  mmc: sdhci: make max-frequency property in device tree work
  mmc: sdhci-esdhc-imx: move all non dt probe code into one function
  mmc: sdhci-esdhc-imx: fix cd regression for dt platform
  dts: imx7: fix sd card gpio polarity specified in device tree
  dts: imx25: fix sd card gpio polarity specified in device tree
  dts: imx6: fix sd card gpio polarity specified in device tree
  dts: imx53: fix sd card gpio polarity specified in device tree
  dts: imx51: fix sd card gpio polarity specified in device tree
  mmc: sdhci-esdhc: Make 8BIT bus work
  mmc: block: Add missing mmc_blk_put() in power_ro_lock_show()
  mmc: MMC_MTK should depend on HAS_DMA
  mmc: sdhci check parameters before call dma_free_coherent
  mmc: omap_hsmmc: Handle BADA, DEB and CEB interrupts
  mmc: omap_hsmmc: Fix DTO and DCRC handling
2015-07-24 16:43:16 -07:00
Stephen Boyd e2adfacde6 regulator: qcom-spmi: Add vendor specific configuration
Add support for over current protection (OCP), pin control
selection, soft start strength, and auto-mode.

Cc: <devicetree@vger.kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-24 18:29:45 +01:00
Stephen Boyd 3a003baeec regulator: Add over current protection (OCP) support
Some regulators can automatically shut down when they detect an
over current event. Add an op (set_over_current_protection) and a
DT property + constraint to support this capability.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-24 18:28:46 +01:00
Franklin S Cooper Jr fa466c9197 spi: davinci: Choose correct pre-scaler limit based on SOC
Currently the pre-scaler limit is incorrect. The value differs slightly
for various devices so a single value can't be used. Using the compatible
field select the correct pre-scaler limit.

Add new compatible field value for Keystone devices to support their
unique pre-scaler limit value.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-24 17:35:51 +01:00
Mark Brown c8a075ab1e Merge remote-tracking branches 'asoc/fix/fsl-ssi', 'asoc/fix/intel', 'asoc/fix/intel-kconfig' and 'asoc/fix/mediatek' into asoc-linus 2015-07-24 16:18:20 +01:00
Johannes Thumshirn 7c97211b61 Documentation: Minor changes to men-chameleon-bus.txt
Change men-chameleon-bus.txt according to the comments made by Randy Dunlap in
https://lkml.org/lkml/2015/7/17/691.

These are:
* Some minor gramatical changes
* Spelling fixes
* Write the word "Chameleon" capitalized throughout the whole document
* Explain MEN as MEN Mikro Elektronik GmbH.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-24 15:15:17 +02:00
Benjamin Herr 013542caa8 Doc: fix trivial typo in SubmittingPatches
This patch changes the tense of a verb in SubmittingPatches to ensure
grammatical validity of the containing sentence.

Signed-off-by: Benjamin Herr <ben@0x539.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-24 15:14:17 +02:00
Jim Davis fce96568f3 Documentation: installed man pages don't need to be executable
Install the man pages with mode 644 instead of 755

Signed-off-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-24 15:05:57 +02:00
Ahmed Mohamed Abd EL Mawgood 3d5583cc82 fix Evolution submenu name in email-clients.txt
I have noticed that there is no submenu in Evolution called Heading
instead there is Paragraph style

Signed-off-by: Ahmed Mohamed <ahmedsoliman0x666@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-24 15:05:57 +02:00
Johannes Thumshirn b9f2f4594c Documentation: Add MCB documentation
Add basic introductory documentation for the MEN Chameleon Bus.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-24 15:05:56 +02:00
Wang Long 9e1aa7c888 Documentation: Update filesystems/debugfs.txt
This patch update the Documentation/filesystems/debugfs.txt
file. The main work is to add the description of the following
functions:
    debugfs_create_atomic_t
    debugfs_create_u32_array
    debugfs_create_devm_seqfile
    debugfs_create_file_size

Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-24 15:05:56 +02:00
Rabin Vincent a10726bb54 Documentation: mm: fix location of extfrag_index
/proc/extfrag_index does not exist.  This file is in debugfs.  Fix the
description of extfrag_threshold to reflect this.

Signed-off-by: Rabin Vincent <rabin.vincent@axis.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-24 15:05:56 +02:00
Henry Chen 678cdb2fbd regulator: mt6311: Add document for mt6311 regulator
This patch adds a list of supported regulator names to the devicetree
binding documentation for Mediatek MT6311 PMIC.

Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-24 12:30:26 +01:00
Dong Aisheng cae13e792f dts: mmc: fsl-imx-esdhc: remove fsl,cd-controller support
It's not supported by driver anymore after using runtime pm
and there's no user of it, so delete it now.

Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com>
Reviewed-by: Johan Derycke <johan.derycke@barco.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-07-24 10:18:39 +02:00
Cyrille Pitchen 05a051436b ARM: at91/dt: add a new DT property to support FIFOs on Atmel USARTs
This patch adds a new DT property, "atmel,fifo-size", to enable and set
the maximum number of data the RX and TX FIFOs can store on FIFO capable
USARTs.

Please be aware that the VERSION register can not be used to guess the
size of FIFOs. Indeed, for a given hardware version, the USARTs can be
integrated on Atmel SoCs with different FIFO sizes. Also the
"atmel,fifo-size" property is optional as older USARTs don't embed FIFO at
all.

Besides, the FIFO size can not be read or guessed from other registers:
When designing the FIFO feature, no dedicated registers were added to
store this size. Unsed spaces in the I/O register range are limited and
better reserved for future usages. Instead, the FIFO size of each
peripheral is documented in the programmer datasheet.

Finally, on a given SoC, there can be several instances of USART with
different FIFO sizes. This explain why we'd rather use a dedicated DT
property than use the "compatible" property.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-23 18:00:42 -07:00
Sekhar Nori 27c93af7e7 serial: 8250_omap: workaround module disable errata on dra7x SoCs
Due to Advisory 21 as documented in AM437x errata document,
UART module cannot be disabled once DMA is used. The only
workaround is to softreset the module before disabling it.

DRA7x UARTs are compatible to AM437x UARTs in terms of
this errata and prescribed workaround.

Enable usage of workaround for this errata on DRA7x SoCs.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-23 15:24:11 -07:00
Sekhar Nori 4fcdff9bca serial: 8250_omap: introduce "ti,am3352-uart" compatible property
Use of of_machine_is_compatible() for handling AM335x specific
"DMA kick" quirk in 8250_omap driver makes it ugly to extend the
quirk for other platforms. Instead use a new compatible.

The new compatible will also make it easier to take care of
other quirks on AM335x and like SoCs.

In order to not break backward DTB compatibility for users of
8250_omap driver on AM335x based boards, existing use of
of_machine_is_compatible() has not been removed.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-23 15:24:11 -07:00
Sekhar Nori d879aeaa41 Documentation: DT: omap_serial: document missing compatible
The compatible "ti,am4372-uart" is used in arch/arm/boot/dts/am4372.dtsi
but not documented. Add necessary documentation.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-23 15:24:11 -07:00
Romain Perier 13517157d1 ARM: dts: rockchip: Add veyron-speedy board
Which is formally known as the Asus C201 chromebook

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-07-23 22:13:46 +02:00
Giuseppe Barba 1e9676a847 iio: st-magn: add support for lsm303agr magnetometer
This adds support for the lsm303agr magnetometer.

Signed-off-by: Giuseppe Barba <giuseppe.barba@st.com>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-23 20:43:27 +01:00
Giuseppe Barba ddc05fa286 iio: st-accel: add support for lsm303agr accelerometer
This adds support for the lsm303agr accelerometer.

Signed-off-by: Giuseppe Barba <giuseppe.barba@st.com>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-23 20:43:22 +01:00
Linus Torvalds b681268cb2 IOMMU Fixes for Linux v4.2-rc3
The fixes include:
 
 	* A couple of fixes for the new ARM-SMMUv3 driver to fix issues found
 	  on the first real implementation of that hardware.
 
 	* A patch for the Intel VT-d driver to fix a domain-id leak.
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Merge tag 'iommu-fixes-v4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:
 "The fixes include:

   - a couple of fixes for the new ARM-SMMUv3 driver to fix issues found
     on the first real implementation of that hardware.

   - a patch for the Intel VT-d driver to fix a domain-id leak"

* tag 'iommu-fixes-v4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Fix VM domain ID leak
  iommu/arm-smmu: Skip the execution of CMD_PREFETCH_CONFIG
  iommu/arm-smmu: Enlarge STRTAB_L1_SZ_SHIFT to support larger sidsize
  iommu/arm-smmu: Fix the values of ARM64_TCR_{I,O}RGN0_SHIFT
  iommu/arm-smmu: Fix LOG2SIZE setting for 2-level stream tables
  iommu/arm-smmu: Fix the index calculation of strtab
2015-07-23 12:25:44 -07:00
Jan Kara c290ea01ab fs: Remove ext3 filesystem driver
The functionality of ext3 is fully supported by ext4 driver. Major
distributions (SUSE, RedHat) already use ext4 driver to handle ext3
filesystems for quite some time. There is some ugliness in mm resulting
from jbd cleaning buffers in a dirty page without cleaning page dirty
bit and also support for buffer bouncing in the block layer when stable
pages are required is there only because of jbd. So let's remove the
ext3 driver. This saves us some 28k lines of duplicated code.

Acked-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
2015-07-23 20:59:40 +02:00
Jan Kara 82ff50b222 doc: Update doc about journalling layer
Documentation of journalling layer in
Documentation/DocBook/filesystems.tmpl speaks about JBD layer. Since
that is going away, update the documentation to speak about JBD2. Also
update the parts that have changed since someone last touched the
document and remove some parts which are just misleading and outdated.

Signed-off-by: Jan Kara <jack@suse.com>
2015-07-23 20:59:39 +02:00
Mars Cheng afc257bc9a Document: DT: Add bindings for mediatek MT6795 SoC Platform
This adds DT binding documentation for Mediatek MT6795.

Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-07-23 19:55:55 +02:00
David S. Miller c5e40ee287 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	net/bridge/br_mdb.c

br_mdb.c conflict was a function call being removed to fix a bug in
'net' but whose signature was changed in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-23 00:41:16 -07:00
Linus Walleij ab4a936247 pinctrl: nomadik: assure GPIO chips are populated
If the pin controller probes before the GPIO driver it needs to
populate the GPIO driver state containers ahead of the actual
driver probe as the addresses are used by both halves of the
driver.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-23 09:11:14 +02:00
Andrey Smetanin 2ce7918990 kvm/x86: add sending hyper-v crash notification to user space
Sending of notification is done by exiting vcpu to user space
if KVM_REQ_HV_CRASH is enabled for vcpu. At exit to user space
the kvm_run structure contains system_event with type
KVM_SYSTEM_EVENT_CRASH to notify about guest crash occurred.

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Peter Hornyack <peterhornyack@google.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Gleb Natapov <gleb@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-23 08:27:06 +02:00
Olof Johansson 9e3cffd877 More omap dts changes for v4.3 merge window:
- Add missing devices for pandora. Note that we're adding wl1251
   WLAN and LCD backlight support for now using legacy pdata as that
   allows us to drop the legacy board file for pandora in another
   series of patches
 
 - Enable power button support for omap5-uevm
 
 - Add aliases for am437x UARTs
 
 - Add support for phyCORE phyBOARD-WEGA-AM335x rdk and
   phyCORE-AM335x SoM
 
 - Use u16 values for tsc2046 on omap3-lilly
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Merge tag 'omap-for-v4.3/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

Merge "omap dts changes for v4.3, part2" from Tony Lindgren:

More omap dts changes for v4.3 merge window:

- Add missing devices for pandora. Note that we're adding wl1251
  WLAN and LCD backlight support for now using legacy pdata as that
  allows us to drop the legacy board file for pandora in another
  series of patches

- Enable power button support for omap5-uevm

- Add aliases for am437x UARTs

- Add support for phyCORE phyBOARD-WEGA-AM335x rdk and
  phyCORE-AM335x SoM

- Use u16 values for tsc2046 on omap3-lilly

* tag 'omap-for-v4.3/dt-pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: omap3-pandora: add wifi support
  ARM: OMAP2+: omap3-pandora: add backlight support
  ARM: dts: omap3-pandora: add support for usb host and 32k buffer
  ARM: dts: omap3-pandora: miscellaneous corrections
  ARM: dts: omap5-uevm: Add Palmas power button support
  ARM: dts: am437x: add aliases for all UART instances
  ARM: dts: Add phyBOARD-WEGA-AM335x rdk
  ARM: dts: Add support for phyCORE-AM335x SoM
  ARM: dts: omap3: correct the format of u16 values for tsc2046 node

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-22 16:25:04 -07:00
Kevin Strasser 655fe4effe usbcore: add sysfs support to xHCI usb3 hardware LPM
Add a sysfs node to make it easier to verify if LPM is supported and being
enabled for USB 3.0 devices.

Signed-off-by: Kevin Strasser <kevin.strasser@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-22 15:45:03 -07:00
Paul E. McKenney f78f5b90c4 rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN()
This commit renames rcu_lockdep_assert() to RCU_LOCKDEP_WARN() for
consistency with the WARN() series of macros.  This also requires
inverting the sense of the conditional, which this commit also does.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
2015-07-22 15:27:32 -07:00
Erik Kline 3985e8a361 ipv6: sysctl to restrict candidate source addresses
Per RFC 6724, section 4, "Candidate Source Addresses":

    It is RECOMMENDED that the candidate source addresses be the set
    of unicast addresses assigned to the interface that will be used
    to send to the destination (the "outgoing" interface).

Add a sysctl to enable this behaviour.

Signed-off-by: Erik Kline <ek@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22 10:54:11 -07:00
Gabriel Fernandez 5eb26c6059 ARM: STi: DT: Rename st_pll3200c32_407_c0_x into st_pll3200c32_cx_x
Use a generic name for this kind of PLL

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
2015-07-22 11:41:33 +02:00
Stas Sergeev 4cba5c2103 of_mdio: add new DT property 'managed' to specify the PHY management type
Currently the PHY management type is selected by the MAC driver arbitrary.
The decision is based on the presence of the "fixed-link" node and on a
will of the driver's authors.
This caused a regression recently, when mvneta driver suddenly started
to use the in-band status for auto-negotiation on fixed links.
It appears the auto-negotiation may not work when expected by the MAC driver.
Sebastien Rannou explains:
<< Yes, I confirm that my HW does not generate an in-band status. AFAIK, it's
a PHY that aggregates 4xSGMIIs to 1xQSGMII ; the MAC side of the PHY (with
inband status) is connected to the switch through QSGMII, and in this context
we are on the media side of the PHY. >>
https://lkml.org/lkml/2015/7/10/206

This patch introduces the new string property 'managed' that allows
the user to set the management type explicitly.
The supported values are:
"auto" - default. Uses either MDIO or nothing, depending on the presence
of the fixed-link node
"in-band-status" - use in-band status

Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>

CC: Rob Herring <robh+dt@kernel.org>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Kumar Gala <galak@codeaurora.org>
CC: Florian Fainelli <f.fainelli@gmail.com>
CC: Grant Likely <grant.likely@linaro.org>
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21 16:12:55 -07:00
Alan Stern 019d8817b1 PM / sleep: Allow devices without runtime PM to do direct-complete
Don't unset the direct_complete flag on devices that have runtime PM
disabled, if they are runtime suspended.

This is needed because otherwise ancestor devices wouldn't be able to
do direct_complete without adding runtime PM support to all its
descendants.

Also removes pm_runtime_suspended_if_enabled() because it's now unused.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-21 23:14:22 +02:00
Teresa Remmet 36bd168355 ARM: dts: Add phyBOARD-WEGA-AM335x rdk
phyBOARD-WEGA-AM335x represents a direct soldered
combination of a phyCORE-AM335x SoM and carrier board.

Different kind of SoM options can be connected to
the wega carrier board. So we created a separate
wega dtsi file. The final dts contains the actual
SoM on the carrier board.

WEGA carrier board features:
* ETH phy on carrier board: 1x MII
* 1x CAN
* 2x UART
* USB0 (device)
* USB1 (host)
* mSD slot

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-21 03:58:26 -07:00
Linus Walleij c21cde6fe1 gpio: document interaction with other subsystems
Now I am very fed up with people reinventing kernel wheels in
userspace "just because they can" (read, sysfs). Put in a angry
blurb in sysfs doc and put in a new file with pointers to other
subsystem drivers utilizing GPIOs.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-21 11:39:32 +02:00
Paolo Pisati 949163015c x86/boot: Obsolete the MCA sys_desc_table
The kernel does not support the MCA bus anymroe, so mark sys_desc_table
as obsolete: remove any reference from the code together with the remaining
of MCA logic.

bloat-o-meter output:

  add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-55 (-55)
  function                                     old     new   delta
  i386_start_kernel                            128     119      -9
  setup_arch                                  1421    1375     -46

Signed-off-by: Paolo Pisati <p.pisati@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1437409430-8491-1-git-send-email-p.pisati@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-21 10:55:11 +02:00
David S. Miller f3120acc78 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-07-17

This series contains updates to igb, ixgbe, ixgbevf, i40e, bnx2x,
freescale, siena and dp83640.

Jacob provides several patches to clarify the intended way to implement
both SIOCSHWTSTAMP and ethtool's get_ts_info().  It is okay to support
the specific filters in SIOCSHWTSTAMP by upscaling them to the generic
filters.

Alex Duyck provides a igb patch to pull the time stamp from the fragment
before it gets added to the skb, to avoid a possible issue in which the
fragment can possibly be less than IGB_RX_HDR_LEN due to the time stamp
being pulled after the copybreak check.  Also provides a ixgbevf patch to
fold the ixgbevf_pull_tail() call into ixgbevf_add_rx_frag(), which gives
the advantage that the fragment does not have to be modified after it is
added to the skb.

Fan provides patches for ixgbe/ixgbevf to set the receive hash type
based on receive descriptor RSS type.

Todd provides a fix for igb where on check for link on any media other
than copper was not being detected since it was looking on the incorrect
PHY page (due to the page being used gets switched before the function
to check link gets executed).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:50:19 -07:00
Joachim Eastwood f4c190eb8b stmmac: drop custom_* fields from plat_stmmacenet_data
Both of these fields are unused and has been unused since they
were added 3 and 5 years ago. Drop them since they are clearly
not very useful.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 20:45:57 -07:00
Scott Feldman a48037e7c6 switchdev: update documentation for offload_fwd_mark
Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-20 18:32:45 -07:00
Greg Kroah-Hartman ed15e8880f Merge 4.2-rc3 into staging-next
We need the staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-20 13:21:28 -07:00
Sanchayan Maity 5e9972cd6f iio: adc: vf610: Determine sampling frequencies by using minimum sample time
The driver currently does not take into account the minimum sample time
as per the Figure 6-8 Chapter 9.1.1 12-bit ADC electrical characteristics.
We set a static amount of cycles instead of considering the sample time
as a given value, which depends on hardware characteristics.

Determine sampling frequencies by first reading the device tree property
node and then calculating the required Long Sample Time Adder (LSTAdder)
value, based on the ADC clock frequency and sample time value obtained
from the device tree. This LSTAdder value is then used for calculating
the sampling frequencies possible.

In case the sample time property is not specified through the device
tree, a safe default value of 1000ns is assumed.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-20 18:41:16 +01:00
Andrea Galbusera f686a36b4b iio: adc: mcp320x: Add support for mcp3301
This adds support for Microchip's 13 bit 1 channel AD converter MCP3301

Signed-off-by: Andrea Galbusera <gizero@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-20 18:41:16 +01:00
Chris Zhong 0ec5f8bd99 regulator: rk808: add the description about dvs gpio for rk808
add the description about dvs1, dvs2, and add the example.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-20 18:40:35 +01:00
Josh Wu 1ae25d626c power: reset: at91: add sama5d3 reset function
This patch introduces a new compatible string: "atmel,sama5d3-rstc" and
new reset function for sama5d3 and later chips.

As in sama5d3 or later chips, we don't have to shutdown the DDR
controller before reset. Shutdown the DDR controller before reset is a
workaround to avoid DDR signal driving the bus, but since sama5d3 and
later chips there is no such a conflict.

So in this patch:
   1. the sama5d3 reset function only need to write the rstc register
and return.
   2. we can remove the code related with sama5d3 DDR controller as
we don't use it at all.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-07-20 18:12:09 +02:00
Davidlohr Bueso ab51fbab39 futex: Fault/error injection capabilities
Although futexes are well known for being a royal pita,
we really have very little debugging capabilities - except
for relying on tglx's eye half the time.

By simply making use of the existing fault-injection machinery,
we can improve this situation, allowing generating artificial
uaddress faults and deadlock scenarios. Of course, when this is
disabled in production systems, the overhead for failure checks
is practically zero -- so this is very cheap at the same time.
Future work would be nice to now enhance trinity to make use of
this.

There is a special tunable 'ignore-private', which can filter
out private futexes. Given the tsk->make_it_fail filter and
this option, pi futexes can be narrowed down pretty closely.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Darren Hart <darren@dvhart.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Link: http://lkml.kernel.org/r/1435645562-975-3-git-send-email-dave@stgolabs.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-20 11:45:45 +02:00
LABBE Corentin e757d5c4c3 ARM: sun4i: dt: Add DT bindings documentation for SUN4I Security System
This patch adds documentation for Device-Tree bindings for the
Security System cryptographic accelerator driver.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-07-20 15:54:06 +08:00
Jandy Gou 2563f7fc83 iio: magnetometer: mmc35240: Add DT binding doc
Signed-off-by: Jandy Gou <qingsong.gou@ck-telecom.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-19 10:55:44 +01:00
Stefan Wahren 07a4257e3d iio: mxs-lradc: clarify supported devices
At the beginning the driver supported only i.MX28 SoC, but now the
whole MXS platform. So remove any confusing comments which apply
only to i.MX28.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-19 10:31:37 +01:00
Cristina Opriceana 1dcafd3aeb iio: Documentation: Remove bytes_per_datum attribute
Remove sysfs bytes_per_datum device attribute ABI documentation
since the attribute is not present anymore.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-19 10:28:45 +01:00
Linus Torvalds 3a26a5b151 Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
 "25 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (25 commits)
  lib/decompress: set the compressor name to NULL on error
  mm/cma_debug: correct size input to bitmap function
  mm/cma_debug: fix debugging alloc/free interface
  mm/page_owner: set correct gfp_mask on page_owner
  mm/page_owner: fix possible access violation
  fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()
  /proc/$PID/cmdline: fixup empty ARGV case
  dma-debug: skip debug_dma_assert_idle() when disabled
  hexdump: fix for non-aligned buffers
  checkpatch: fix long line messages about patch context
  mm: clean up per architecture MM hook header files
  MAINTAINERS: uclinux-h8-devel is moderated for non-subscribers
  mailmap: update Sudeep Holla's email id
  Update Viresh Kumar's email address
  mm, meminit: suppress unused memory variable warning
  configfs: fix kernel infoleak through user-controlled format string
  include, lib: add __printf attributes to several function prototypes
  s390/hugetlb: add hugepages_supported define
  mm: hugetlb: allow hugepages_supported to be architecture specific
  revert "s390/mm: make hugepages_supported a boot time decision"
  ...
2015-07-18 10:01:04 -07:00
Linus Torvalds 3f8476fe89 - Revert a request-based DM core change that caused IO latency to
increase and adversely impact both throughput and system load
 
 - Fix for a use after free bug in DM core's device cleanup
 
 - A couple DM btree removal fixes (used by dm-thinp)
 
 - A DM thinp fix for order-5 allocation failure
 
 - A DM thinp fix to not degrade to read-only metadata mode when in
   out-of-data-space mode for longer than the 'no_space_timeout'
 
 - Fix a long-standing oversight in both dm-thinp and dm-cache by
   now exporting 'needs_check' in status if it was set in metadata
 
 - Fix an embarrassing dm-cache busy-loop that caused worker threads to
   eat cpu even if no IO was actively being issued to the cache device
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Merge tag 'dm-4.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - revert a request-based DM core change that caused IO latency to
   increase and adversely impact both throughput and system load

 - fix for a use after free bug in DM core's device cleanup

 - a couple DM btree removal fixes (used by dm-thinp)

 - a DM thinp fix for order-5 allocation failure

 - a DM thinp fix to not degrade to read-only metadata mode when in
   out-of-data-space mode for longer than the 'no_space_timeout'

 - fix a long-standing oversight in both dm-thinp and dm-cache by now
   exporting 'needs_check' in status if it was set in metadata

 - fix an embarrassing dm-cache busy-loop that caused worker threads to
   eat cpu even if no IO was actively being issued to the cache device

* tag 'dm-4.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache: avoid calls to prealloc_free_structs() if possible
  dm cache: avoid preallocation if no work in writeback_some_dirty_blocks()
  dm cache: do not wake_worker() in free_migration()
  dm cache: display 'needs_check' in status if it is set
  dm thin: display 'needs_check' in status if it is set
  dm thin: stay in out-of-data-space mode once no_space_timeout expires
  dm: fix use after free crash due to incorrect cleanup sequence
  Revert "dm: only run the queue on completion if congested or no requests pending"
  dm btree: silence lockdep lock inversion in dm_btree_del()
  dm thin: allocate the cell_sort_array dynamically
  dm btree remove: fix bug in redistribute3
2015-07-17 20:53:57 -07:00
Jacob Keller eff3cddc22 clarify implementation of ethtool's get_ts_info op
This patch adds some clarification about the intended way to implement
both SIOCSHWTSTAMP and ethtool's get_ts_info. The HWTSTAMP API has
several Rx filters which are very specific, as well as more general
filters. The specific filters really only exist to support some broken
hardware which can't fully implement the generic filters. This patch
adds clarification that it is okay to support the specific filters in
SIOCSHWTSTAMP by upscaling them to the generic filters. In addition,
update the header for ethtool_ts_info to specify that drivers ought to
only report the filters they support without upscaling in this manner.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Reviewed-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-07-17 19:59:04 -07:00
Shawn Guo def56bba7a input: snvs_pwrkey: use "wakeup-source" as deivce tree property name
Instead of inventing a new property name, let's use "wakeup-source" to
be consistent with other driver and subsystem bindings.

Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-18 09:45:43 +08:00
Viresh Kumar da89947b47 Update Viresh Kumar's email address
Switch to my kernel.org alias instead of a badly named gmail address,
which I rarely use.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-17 16:39:53 -07:00
Mars Cheng 69a462b953 Document: DT: Add bindings for mediatek MT6580 SoC Platform
This adds a DT binding documentation for the MT6580 SoC from Mediatek.

Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-07-18 00:22:42 +02:00
Paul E. McKenney cdacbe1f91 rcu: Add fastpath bypassing funnel locking
In the common case, there will be only one expedited grace period in
the system at a given time, in which case it is not helpful to use
funnel locking.  This commit therefore adds a fastpath that bypasses
funnel locking when the root ->exp_funnel_mutex is not held.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-17 14:59:06 -07:00
Paul E. McKenney 99a930b0d2 documentation: Describe new expedited stall warnings
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-17 14:59:03 -07:00
Paul E. McKenney 75c27f119b rcu: Remove CONFIG_RCU_CPU_STALL_INFO
The CONFIG_RCU_CPU_STALL_INFO has been default-y for a couple of
releases with no complaints, so it is time to eliminate this Kconfig
option entirely, so that the long-form RCU CPU stall warnings cannot
be disabled.  This commit does just that.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-17 14:58:44 -07:00
Bjorn Andersson b4c45fe974 pinctrl: qcom: ssbi: Family A gpio & mpp drivers
This introduces pinctrl drivers for gpio and mpp blocks found in family A
PMICs.

Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17 21:56:14 +02:00
Linus Torvalds eb254374a3 Staging/IIO driver fixes for 4.2-rc3
Here's some staging and IIO driver fixes for 4.2-rc3.
 
 Nothing major, the majority are IIO issues that were reported, with a
 few other minor staging driver fixes.  All have been in linux-next for a
 while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver fixes from Greg KH:
 "Here's some staging and IIO driver fixes for 4.2-rc3.

  Nothing major, the majority are IIO issues that were reported, with a
  few other minor staging driver fixes.  All have been in linux-next for
  a while with no reported issues"

* tag 'staging-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (25 commits)
  staging: vt6656: check ieee80211_bss_conf bssid not NULL
  staging: vt6655: check ieee80211_bss_conf bssid not NULL
  staging:lustre: remove irq.h from socklnd.h
  staging: make board support depend on OF_IRQ and CLKDEV_LOOKUP
  iio: tmp006: Check channel info on write
  iio: sx9500: Add missing init in sx9500_buffer_pre{en,dis}able()
  iio:light:ltr501: fix regmap dependency
  iio:light:ltr501: fix variable in ltr501_init
  iio: sx9500: fix bug in compensation code
  iio: sx9500: rework error handling of raw readings
  iio: magnetometer: mmc35240: fix available sampling frequencies
  iio:light:stk3310: Fix REGMAP_I2C dependency
  iio: light: STK3310: un-invert proximity values
  iio:adc:cc10001_adc: fix Kconfig dependency
  iio: light: tcs3414: Fix bug preventing to set integration time
  iio:accel:bmc150-accel: fix counting direction
  iio:light:cm3323: clear bitmask before set
  iio: adc: at91_adc: allow to use full range of startup time
  iio: DAC: ad5624r_spi: fix bit shift of output data value
  iio: proximity: sx9500: Fix proximity value
  ...
2015-07-17 11:30:59 -07:00
Uwe Kleine-König 54e7ad47c9 spi: mpc512x-psc: adapt mpc5121-psc document to reality
The drivers support MPC5125 additionally to MPC5121, and there is an spi
mode that is also supported. Additionally some minor corrections are
done.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-17 19:27:42 +01:00
Joachim Eastwood 18eb5e9fb2 doc: dt: add documentation for pl172 memory bindings
Add documentation for configuration and timing setup of
static memory devices on the ARM PL172 controller.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-17 10:43:50 -07:00
Olof Johansson af3761246c This adds the board for the Netxeon R89 used in different
TV-boxes and the initial support for two Chromebooks from
 the veyron family.
 Additionally a non-critical fix for the watchdog irq
 on rk3288, addition of the gmac reset line, a ramp delay
 for the cpu regulator on the firefly board and cpu affinity
 for the arm-pmu spi irqs.
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Merge tag 'v4.3-rockchip32-dts1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt

Merge "Rockchip dts changes for 4.3, part1" from Heiko Stuebner:

This adds the board for the Netxeon R89 used in different TV-boxes and
the initial support for two Chromebooks from the veyron family.

Additionally a non-critical fix for the watchdog irq on rk3288, addition
of the gmac reset line, a ramp delay for the cpu regulator on the firefly
board and cpu affinity for the arm-pmu spi irqs.

* tag 'v4.3-rockchip32-dts1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: add rk3288 arm-pmu irq affinity
  dt-bindings: document rk3368 R88 board from Rockchip
  ARM: dts: rockchip: add missing device_type = "memory" to boards
  ARM: dts: rockchip: add veyron-pinky board
  ARM: dts: rockchip: add veyron-jerry board
  ARM: dts: rockchip: add shared rk3288-veyron files
  ARM: dts: Add sbs-battery dts fragment used by chromebooks
  ARM: dts: rockchip: add Netxeon R89 board
  dt-bindings: add vendor prefix for Netxeon Technology
  ARM: dts: rockchip: fix rk3288 watchdog irq
  ARM: dts: rockchip: Add ramp delay for vdd_cpu in firefly board dts
  ARM: dts: rockchip: Add STMMAC reset signal in GMAC interface for rk3288

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-17 10:37:26 -07:00
Olof Johansson ee0ee14ebf Merge branch 'depends/clk-rk3368' into next/arm64
Merge in dependent stable branch with clk driver for RK3368, needed for the
dt binding header files.

* depends/clk-rk3368:
  clk: rockchip: add rk3368 clock controller
  clk: rockchip: add missing include guards
  clk: rockchip: add dt-binding header for rk3368
  dt-bindings: add documentation of rk3668 clock controller
  clk: rockchip: define the inverters of rk3066/rk3188 and rk3288
  clk: rockchip: fix issues in the mmc-phase clock
  clk: rockchip: add support for phase inverters
  clk: rockchip: add COMPOSITE_NOGATE_DIVTBL variant
  clk: rockchip: protect register macros against multipart values
  clk: rockchip: fix faulty vip parent name on rk3288
  clk: rockchip: rk3288: add CLK_SET_RATE_PARENT to sclk_mac

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-17 10:34:58 -07:00
Olof Johansson 858ed8cbb3 mvebu dt changes for v4.3 (part #1)
- Update Armada 388 GP description
 - Add Buffalo Linkstation  LS-WXL and LS-WSXL
 - Fine-tune the L2 configuration for cortex A9 based SoC
 - Update XOR definition for Armada 38x and 39x SoC
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Merge tag 'mvebu-dt-4.3-1' of git://git.infradead.org/linux-mvebu into next/dt

Merge "ARM: mvebu: dt changes for v4.3" from Gregory Clement:

mvebu dt changes for v4.3 (part #1)

- Update Armada 388 GP description
- Add Buffalo Linkstation  LS-WXL and LS-WSXL
- Fine-tune the L2 configuration for cortex A9 based SoC
- Update XOR definition for Armada 38x and 39x SoC

* tag 'mvebu-dt-4.3-1' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: update EEPROM description of Armada 388 GP
  ARM: mvebu: fix description of pwr-sata0 regulator on Armada 388 GP
  ARM: dts: add buffalo linkstation ls-wvl/vl
  ARM: dts: add buffalo linkstation ls-wxl/wsxl
  ARM: mvebu: use DT properties to fine-tune the L2 configuration
  ARM: mvebu: use armada-380-xor on Armada 38x and 39x

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-17 10:08:17 -07:00
Olof Johansson 4a7514f717 Merge branch 'lpc18xx_43xx_dts_4.3' of https://github.com/manabian/linux-lpc into next/dt
Merge "LPC18xx DTS changes for 4.3" from Joachim Eastwood:

This patch set adds DT nodes for all the drivers that went upstream in
4.2 and should represent the bulk of DTS changes for 4.3.  All nodes
added are documented and some of patches carries a ack from subsystem
maintainer. It also features updates to the EA4357 dev- kit and a new
board from Ezequiel Garcia.

Note that there might be one more batch of DTS changes for 4.3 if any
new drivers goes upstream and also some changes for the Hitex eval board
might come.

* 'lpc18xx_43xx_dts_4.3' of https://github.com/manabian/linux-lpc:
  ARM: dts: add DT for CIAA LPC4337 industrial computer
  of: add vendor prefix for CIAA project
  ARM: dts: lpc4357-ea4357: add uart3
  ARM: dts: lpc4357-ea4357: add ethernet
  ARM: dts: lpc4357-ea4357: add gpio joystick
  ARM: dts: lpc4357-ea4357: add mmcsd
  ARM: dts: lpc4357-ea4357: add pinctrl and uart0 muxing
  ARM: dts: lpc18xx: add usb nodes
  ARM: dts: lpc18xx: add ethernet node
  ARM: dts: lpc18xx: add creg (syscon) node
  ARM: dts: lpc18xx: add mmcsd node
  ARM: dts: lpc18xx: add can nodes
  ARM: dts: lpc18xx: add ssp nodes
  ARM: dts: lpc18xx: add gpio node
  ARM: dts: lpc18xx: add pinctrl node
  ARM: dts: lpc18xx: add uart new compat string and clk names
  ARM: dts: lpc18xx: add cgu and ccu clock-controller nodes

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-17 09:53:59 -07:00
Jens Axboe 0034af0365 block: make /sys/block/<dev>/queue/discard_max_bytes writeable
Lots of devices support huge discard sizes these days. Depending
on how the device handles them internally, huge discards can
introduce massive latencies (hundreds of msec) on the device side.

We have a sysfs file, discard_max_bytes, that advertises the max
hardware supported discard size. Make this writeable, and split
the settings into a soft and hard limit. This can be set from
'discard_granularity' and up to the hardware limit.

Add a new sysfs file, 'discard_max_hw_bytes', that shows the hw
set limit.

Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-07-17 08:41:53 -06:00
Bjorn Andersson eb5c144cbb pinctrl: qcom: spmi-mpp: Transpose pinmux function
The "function" of the MPP driver was inherited from the GPIO driver, but the
differences between the two hardware blocks makes both the driver and the
device tree binding to be awkward.

Instead of overloading the "normal" function with various modes this patch
transposes the pinmux function to represent the three operating modes of the
MPP (digital, analog and current sink). The properties of pin pairing and DTEST
routing is moved to separate properties.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17 14:31:19 +02:00
Bjorn Andersson 099f3e4add pinctrl: qcom: spmi-mpp: Add support for setting analog output level
When the MPP is configured for analog output the output level is selected by
the AOUT_CTL register, this patch makes it possible to control this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17 14:29:25 +02:00
Dave Airlie e1e50e1e1e imx-drm: fixes for parallel-display, imx-tve, and ipu-common
These patches fix the parallel-display driver to use the standard OF
 graph bindings for connecting a drm_panel via device tree instead of
 an undocumented, driver specific device tree property, take care to
 disable all IPU interrupts before setting up the irq chip to fix a
 kexec lockup, and fix VGA output on i.MX53-QSB boards by correcting
 the media bus format set by the imx-tve driver.
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Merge tag 'imx-drm-fixes-2015-07-14' of git://git.pengutronix.de/git/pza/linux into drm-fixes

imx-drm: fixes for parallel-display, imx-tve, and ipu-common

These patches fix the parallel-display driver to use the standard OF
graph bindings for connecting a drm_panel via device tree instead of
an undocumented, driver specific device tree property, take care to
disable all IPU interrupts before setting up the irq chip to fix a
kexec lockup, and fix VGA output on i.MX53-QSB boards by correcting
the media bus format set by the imx-tve driver.

* tag 'imx-drm-fixes-2015-07-14' of git://git.pengutronix.de/git/pza/linux:
  drm/imx: tve: fix media bus format for VGA output
  GPU: ipu: fix lockup caused by pending chained interrupts
  drm/imx: parallel-display: fix drm_panel support
2015-07-17 10:24:34 +10:00
Dave Airlie 375539832c Merge tag 'topic/drm-fixes-2015-07-16' of git://anongit.freedesktop.org/drm-intel into drm-fixes
Ok next attempt at drm-fixes pull. Big thing really is just the compat32
one for addfb2.1.

* tag 'topic/drm-fixes-2015-07-16' of git://anongit.freedesktop.org/drm-intel:
  drm: Provide compat ioctl for addfb2.1
  Documentation: drm: Fix tablulation in KMS properties table
  drm: add a check for x/y in drm_mode_setcrtc
  drm/rockchip: use drm_gem_mmap helpers
2015-07-17 09:56:00 +10:00
Heiko Stuebner 4a01a64c8e dt-bindings: document rk3368 R88 board from Rockchip
The initial board containing the rk3368 ARM64 soc.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-07-16 16:40:04 +02:00
Mike Snitzer 255eac2005 dm cache: display 'needs_check' in status if it is set
There is currently no way to see that the needs_check flag has been set
in the metadata.  Display 'needs_check' in the cache status if it is set
in the cache metadata.

Also, update cache documentation.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-07-16 10:23:50 -04:00
Mike Snitzer e4c78e210d dm thin: display 'needs_check' in status if it is set
There is currently no way to see that the needs_check flag has been set
in the metadata.  Display 'needs_check' in the thin-pool status if it is
set in the thinp metadata.

Also, update thinp documentation.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-07-16 10:23:50 -04:00
Heiko Stuebner 05ffc63062 ARM: dts: rockchip: add veyron-pinky board
While pinky was one of the earlier development models, is on the list
of endangered species today and nearly extinct, I want to keep mine
around for the foreseeable future after spending all the time making a
nice hole into the base below the dut-connector.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-07-16 14:18:37 +02:00
Alexandru M Stan f3ee390e4e ARM: dts: rockchip: add veyron-jerry board
The Hisense Chromebook C11, also named jerry.

Signed-off-by: Alexandru M Stan <amstan@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
2015-07-16 13:38:49 +02:00
Laurent Pinchart 16ccaf5bb5 pinctrl: sh-pfc: Accept standard function, pins and groups properties
The "function", "pins" and "groups" pinmux and pinctrl properties have
been standardized. Support them in addition to the custom "renesas,*"
properties. New-style and old-style properties can't be mixed in DT.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16 11:36:52 +02:00
Jun Nie 24f743a0f0 gpio: Document ZTE zx296702 GPIO DT binding
Add document of ZTE zx296702 GPIO binding

Signed-off-by: Jun Nie <jun.nie@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16 10:11:41 +02:00
Thierry Reding 5cf4af3beb ALSA: hda/tegra: Order clock and reset names consistently
The example in the device tree binding documentation and the driver code
list hda2codec_2x as the last entry in the clock-names and reset-names
properties. Update the description of the properties to use the same
order.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 09:42:05 +02:00
Marcel Ziswiler 42a8679cf2 ALSA: hda/tegra - Fix hda2codec_2x clock and reset names
Fix hda2codec_2x clock and reset names in Tegra30 HDA controller device
tree node documentation. While at it also fix coma vs. semicolon issue.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 09:42:04 +02:00
Bjorn Andersson 0e948042c4 pinctrl: qcom: spmi-mpp: Implement support for sink mode
The MPP supports three modes; digital, analog and sink mode. This patch
implements support for the latter.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16 09:39:04 +02:00
Tuomas Tynkkynen 135796c9cc cpufreq: tegra124: Add device tree bindings
The cpufreq driver for Tegra124 will be a different one than the old
Tegra20 cpufreq driver (tegra-cpufreq), which does not use the device
tree.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 09:34:06 +02:00
Tuomas Tynkkynen 0c59d26770 clk: tegra: Add binding for the Tegra124 DFLL clocksource
The DFLL is the main clocksource for the fast CPU cluster on Tegra124
and also provides automatic CPU rail voltage scaling as well. The DFLL
is a separate IP block from the usual Tegra124 clock-and-reset
controller, so it gets its own node in the device tree.

Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com>
Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi>
Acked-by: Michael Turquette <mturquette@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-07-16 09:32:43 +02:00
Gregory Fong 7c50181b69 dt-bindings: brcmstb-gpio: document properties for wakeup
Some brcmstb GPIO controllers can be used to wake from suspend, so use
the de facto standard property 'wakeup-source' to mark the nodes of
controllers with that capability.

Also document interrupts-extended, which will be used for wakeup
handling because the interrupt parent for the wake IRQ is different
from the regular IRQ.

While we're at it, a few more fixes: We don't actually use the
"interrupt-names" property, so remove it from the listed optional
properties and from the examples.  And since we're modifying the
examples, also follow Brian's suggestions to:
- change #gpio-cells, #interrupt-cells, and brcm,gpio-bank-widths from
  hex to dec
- use phandles

Reviewed-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16 00:11:02 +02:00
Paul E. McKenney 96d7744e0a doc: Call out smp_mb__after_unlock_lock() transitivity
Although "full barrier" should be interpreted as providing transitivity,
it is worth eliminating any possible confusion.  This commit therefore
adds "(including transitivity)" to eliminate any possible confusion.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-15 14:43:14 -07:00
Paul E. McKenney 9af194cefc documentation: Replace ACCESS_ONCE() by READ_ONCE() and WRITE_ONCE()
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-15 14:43:13 -07:00
Paul E. McKenney 57aecae950 documentation: Fix variable-name typo in memory-barriers.txt
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-15 14:43:11 -07:00
Paul E. McKenney 297f739938 documentation: Fix spelling of "operators"
Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-15 14:43:10 -07:00
Paul E. McKenney 21b05de4c8 documentation: Bring rcutorture parameters up to date
This commit changes the documentation of the rcutorture parameters to
better match reality.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-15 14:43:09 -07:00
Linus Torvalds bec33cd2eb ARC fixes for 4.2-rc3
- Makefile changes (top-level+ARC) reinstates -O3 builds (regression since 3.16)
  - IDU intc related fixes, IRQ affinity
  - patch to make bitops safer for ARC
  - perf fix from Alexey to remove signed PC braino
  - Futex backend gets llock/scond support
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Merge tag 'arc-v4.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 - Makefile changes (top-level+ARC) reinstates -O3 builds (regression
   since 3.16)
 - IDU intc related fixes, IRQ affinity
 - patch to make bitops safer for ARC
 - perf fix from Alexey to remove signed PC braino
 - Futex backend gets llock/scond support

* tag 'arc-v4.2-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARCv2: support HS38 releases
  ARC: make sure instruction_pointer() returns unsigned value
  ARC: slightly refactor macros for boot logging
  ARC: Add llock/scond to futex backend
  arc:irqchip: prepare for drivers/irqchip/irqchip.h removal
  ARC: Make ARC bitops "safer" (add anti-optimization)
  ARCv2: [axs103] bump CPU frequency from 75 to 90 MHZ
  ARCv2: intc: IDU: Fix potential race in installing a chained IRQ handler
  ARCv2: intc: IDU: support irq affinity
  ARC: fix unused var wanring
  ARC: Don't memzero twice in dma_alloc_coherent for __GFP_ZERO
  ARC: Override toplevel default -O2 with -O3
  kbuild: Allow arch Makefiles to override {cpp,ld,c}flags
  ARCv2: guard SLC DMA ops with spinlock
  ARC: Kconfig: better way to disable ARC_HAS_LLSC for ARC_CPU_750D
2015-07-15 13:17:31 -07:00
Greg Kroah-Hartman e913bfb60b First round of new drivers, cleanups and functionality for IIO in the 4.3 cycle.
Core and tools new stuff
 * Allow explicit flush of hardware fifo by using an non blocking read.
   This is needed to support some of the Android requirements for HW fifo
   devices - also makes sense generally and clarifies a corner of the ABI.
 * Add some missing modifier names.  Mostly these exist for weird and
   wonderful event types, but should still be present in the name array.
 * Update iio_event_monitor to cope with new channel types.
 * generic_buffer gains support for single byte scan elements (no idea
   how this never got implemented before!)
 
 New device support
 * ROHM rpr0521 light and proximity sensor driver.
 * bmc150 gains bmc156 support.
 * ms5611 gains ms5607 temperature and pressure sensor support.
 
 Driver functionality
 * inv-mpu - add scale_available attributes to aid userspace in
   configuring these devices.
 * isl29125 - add scale_available attributes.
 * stk8ba50 - sampling frequency control, triggered buffer support.
 * stk8312 - sampling frequency control, triggered buffer support.
 * cc10001 - ensure ADC powered up at probe time if shared by non linux
   running CPUs.
 * bmc150-magn - decouple the buffer and trigger allowing other triggers
   to be used to drive this device's sampling.
 Documentation
 * Add some previously missed *scale_available attributes to the ABI docs.
 
 Cleanups
 * Clarify some crazy naming in iio_triggered_buffer_setup that seems to
   have somehow ended up backwards (dates back a long way).  Avoid the top
   half and bottom half naming entirely given we are how dealing with a
   handler and a thread in all cases.
 * Tools cleanup including coding style, variable naming improvements, also
   a new sanity check on a full event having been read.
 * stk8ba50 - replace the scale table with a struct for clarity. Also suspend
   the sensor if an error occurs in init.
 * hid-sensor-prox - drop uneeded line break.
 * mma9551 - use size in words for word read / write avoiding accidental
   sending of an odd number of bytes.
 * mma9553 - fix code alignment and document the use of a mutex.
 * light/Kconfig - typo fix in commment.
 * cm3323 - don't eat an error value, replace an unneeded local variable with
   a generic local variable with the same use, add some blank lines for clarity.
 * pressure/Kconfig - typo in Measurement Specialties name.
 * bmc150-accel - actually use a mask definition rather than repeating the
   value inline, code style cleanup.
 * adc/Kconfig - general help description cleanup.
 * ssp_sensors - drop redundant spi driver bus initialization (done in the
   spi core)
 * tmp006 - use genmask rather than hand generated masks.
 * ms5611 - drop IIO_CHAN_INFO_SCALE as this driver provides a processed
   output and as such the read only scale adds nothing useful.
 * kxcjk-1013, adf4350, dummy - drop unwanted blank lines.
 * Drop all owner assignments from i2c_drivers and this is done in the
   i2c core.
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Merge tag 'iio-for-4.3a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First round of new drivers, cleanups and functionality for IIO in the 4.3 cycle.

Core and tools new stuff
* Allow explicit flush of hardware fifo by using an non blocking read.
  This is needed to support some of the Android requirements for HW fifo
  devices - also makes sense generally and clarifies a corner of the ABI.
* Add some missing modifier names.  Mostly these exist for weird and
  wonderful event types, but should still be present in the name array.
* Update iio_event_monitor to cope with new channel types.
* generic_buffer gains support for single byte scan elements (no idea
  how this never got implemented before!)

New device support
* ROHM rpr0521 light and proximity sensor driver.
* bmc150 gains bmc156 support.
* ms5611 gains ms5607 temperature and pressure sensor support.

Driver functionality
* inv-mpu - add scale_available attributes to aid userspace in
  configuring these devices.
* isl29125 - add scale_available attributes.
* stk8ba50 - sampling frequency control, triggered buffer support.
* stk8312 - sampling frequency control, triggered buffer support.
* cc10001 - ensure ADC powered up at probe time if shared by non linux
  running CPUs.
* bmc150-magn - decouple the buffer and trigger allowing other triggers
  to be used to drive this device's sampling.
Documentation
* Add some previously missed *scale_available attributes to the ABI docs.

Cleanups
* Clarify some crazy naming in iio_triggered_buffer_setup that seems to
  have somehow ended up backwards (dates back a long way).  Avoid the top
  half and bottom half naming entirely given we are how dealing with a
  handler and a thread in all cases.
* Tools cleanup including coding style, variable naming improvements, also
  a new sanity check on a full event having been read.
* stk8ba50 - replace the scale table with a struct for clarity. Also suspend
  the sensor if an error occurs in init.
* hid-sensor-prox - drop uneeded line break.
* mma9551 - use size in words for word read / write avoiding accidental
  sending of an odd number of bytes.
* mma9553 - fix code alignment and document the use of a mutex.
* light/Kconfig - typo fix in commment.
* cm3323 - don't eat an error value, replace an unneeded local variable with
  a generic local variable with the same use, add some blank lines for clarity.
* pressure/Kconfig - typo in Measurement Specialties name.
* bmc150-accel - actually use a mask definition rather than repeating the
  value inline, code style cleanup.
* adc/Kconfig - general help description cleanup.
* ssp_sensors - drop redundant spi driver bus initialization (done in the
  spi core)
* tmp006 - use genmask rather than hand generated masks.
* ms5611 - drop IIO_CHAN_INFO_SCALE as this driver provides a processed
  output and as such the read only scale adds nothing useful.
* kxcjk-1013, adf4350, dummy - drop unwanted blank lines.
* Drop all owner assignments from i2c_drivers and this is done in the
  i2c core.
2015-07-15 12:32:09 -07:00
Frank Li cc28791d5e Document: devicetree: input: imx: i.mx snvs power device tree bindings
The snvs-pwrkey is designed to enable POWER key function which controlled
by SNVS ONOFF. the driver can report the status of POWER key and wakeup
system if pressed after system suspend.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-07-15 10:17:11 +08:00
Frank Li 4fcb7dfd82 Document: dt: fsl: snvs: change support syscon
snvs actually is multi fucntion driver.
Change to use syscon to access register.
Change snvs parent interrupt to option because single function
may have seperated irq number.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2015-07-15 10:16:55 +08:00
Aleksa Sarai 917d8e2d10 cgroup: add documentation for the PIDs controller
Add documentation derived from kernel/cgroup_pids.c to the relevant
Documentation/ directory, along with a few examples of how to use the
PIDs controller as well an explanation of its peculiarities.

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2015-07-14 17:29:23 -04:00
Peter Huewe acc068d967 Documenation: Update location of docproc.c
docproc.c was moved in 2011 from scripts/basic to scripts
-> updated the references accordingly

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-14 12:36:39 -06:00
Masanari Iida 5d250eeb9d Doc: pps: Fix file name in pps.txt
This patch fix a file name of example code.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-14 12:35:42 -06:00
Sébastien Hinderer 6e7ac7b4ab SubmittingPatches: fix wrong wording
"facilitate easier reviewing" says the same thing twice.

Signed-off-by: Sébastien Hinderer <Sebastien.Hinderer@ens-lyon.org>
[jc: made it "easier review"]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-14 12:33:21 -06:00
Sébastien Hinderer bdc8921371 SubmittingPatches: fix wrong wording
Signed-off-by: Sébastien Hinderer <Sebastien.Hinderer@ens-lyon.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-14 12:31:43 -06:00
Heiko Stuebner cde669fa71 ARM: dts: rockchip: add Netxeon R89 board
This board is used in some TV-boxes like for example the Beelink R89 or
Tronsmart R28.

The board itself follows the reference design for the most part. But
there are no schematics available it seems, so some things should be
taken with a grain of salt.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Romain Perier <romain.perier@gmail.com>
2015-07-14 20:25:40 +02:00
Heiko Stuebner cfa229b7b4 dt-bindings: add vendor prefix for Netxeon Technology
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Romain Perier <romain.perier@gmail.com>
2015-07-14 20:25:34 +02:00
Ezequiel Garcia a8069fafe8 of: add vendor prefix for CIAA project
CIAA stands for Argentine Open Industrial Computer. The CIAA project
is an initiative sponsored by universities and private companies.
Its main goal is to promote local embedded systems development.

Among other devices, the project developed a NXP LPC4337-based
reference design.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
2015-07-14 15:12:11 +02:00
David S. Miller 638d3c6381 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	net/bridge/br_mdb.c

Minor conflict in br_mdb.c, in 'net' we added a memset of the
on-stack 'ip' variable whereas in 'net-next' we assign a new
member 'vid'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-13 17:28:09 -07:00
Greg Kroah-Hartman a732cd437b First set of IIO fixes for the 4.2 cycle.
* Fix a regression in hid sensors suspend time as a result of adding runtime
   pm.  The normal flow of waking up devices in order to go into suspend
   (given the devices are normally suspended when not reading) to a regression
   in suspend time on some laptops (reports of an additional 8 seconds).
   Fix this by checking to see if a user action resulting in the wake up, and
   make it a null operation if it didn't.  Note that for hid sensors, there is
   nothing useful to be done when moving into a full suspend from a runtime
   suspend so they might as well be left alone.
 * rochip_saradc: fix some missing MODULE_* data including the licence so that
   the driver does not taint the kernel incorrectly and can build as a module.
 * twl4030 - mark irq as oneshot as it always should have been.
 * inv-mpu - write formats for attributes not specified, leading to miss
   interpretation of the gyro scale channel when written.
 * Proximity ABI clarification.  This had snuck through as a mess.  Some
   drivers thought proximity went in one direction, some the other.  We went
   with the most common option, documented it and fixed up the drivers going
   the other way.  Fix for sx9500 included in this set.
 * ad624r - fix a wrong shift in the output data.
 * at91_adc - remove a false limit on the value of the STARTUP register
   applied by too small a type for the device tree parameter.
 * cm3323 - clear the bits when setting the integration time (otherwise
   we can only ever set more bits in the relevant field).
 * bmc150-accel - multiple triggers are registered, but on error were not being
   unwound in the opposite order leading to removal of triggers that had not
   yet successfully been registered (count down instead of up when unwinding).
 * tcs3414 - ensure right part of val / val2 pair read so that the integration
   time is not always 0.
 * cc10001_adc - bug in kconfig dependency. Use of OR when AND was intended.
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Merge tag 'iio-fixes-for-4.2a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First set of IIO fixes for the 4.2 cycle.

* Fix a regression in hid sensors suspend time as a result of adding runtime
  pm.  The normal flow of waking up devices in order to go into suspend
  (given the devices are normally suspended when not reading) to a regression
  in suspend time on some laptops (reports of an additional 8 seconds).
  Fix this by checking to see if a user action resulting in the wake up, and
  make it a null operation if it didn't.  Note that for hid sensors, there is
  nothing useful to be done when moving into a full suspend from a runtime
  suspend so they might as well be left alone.
* rochip_saradc: fix some missing MODULE_* data including the licence so that
  the driver does not taint the kernel incorrectly and can build as a module.
* twl4030 - mark irq as oneshot as it always should have been.
* inv-mpu - write formats for attributes not specified, leading to miss
  interpretation of the gyro scale channel when written.
* Proximity ABI clarification.  This had snuck through as a mess.  Some
  drivers thought proximity went in one direction, some the other.  We went
  with the most common option, documented it and fixed up the drivers going
  the other way.  Fix for sx9500 included in this set.
* ad624r - fix a wrong shift in the output data.
* at91_adc - remove a false limit on the value of the STARTUP register
  applied by too small a type for the device tree parameter.
* cm3323 - clear the bits when setting the integration time (otherwise
  we can only ever set more bits in the relevant field).
* bmc150-accel - multiple triggers are registered, but on error were not being
  unwound in the opposite order leading to removal of triggers that had not
  yet successfully been registered (count down instead of up when unwinding).
* tcs3414 - ensure right part of val / val2 pair read so that the integration
  time is not always 0.
* cc10001_adc - bug in kconfig dependency. Use of OR when AND was intended.
2015-07-13 14:18:07 -07:00
James Ban 7bd3935432 regulator: da9211: support da9215
This is a patch for supporting da9215 buck converter.

Signed-off-by: James Ban <james.ban.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-13 19:11:24 +01:00
Geert Uytterhoeven 4245746037 regulator: da9210: Add optional interrupt support
Add optional interrupt support to the da9210 regulator driver, to handle
over-current, under- and over-voltage, and over-temperature events.

Only the interrupt sources for which we handle events are unmasked, to
avoid interrupts we cannot handle.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-13 11:19:28 +01:00
Linus Torvalds 84e3e9d04d ARM: SoC: fixes for v4.2-rc2
A fairly random colletion of fixes based on -rc1 for OMAP, sunxi and
 prima2 as well as a few arm64-specific DT fixes.
 
 This series also includes a late to support a new Allwinner (sunxi)
 SoC, but since it's rather simple and isolated to the
 platform-specific code, it's included it for this -rc.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Kevin Hilman:
 "A fairly random colletion of fixes based on -rc1 for OMAP, sunxi and
  prima2 as well as a few arm64-specific DT fixes.

  This series also includes a late to support a new Allwinner (sunxi)
  SoC, but since it's rather simple and isolated to the
  platform-specific code, it's included it for this -rc"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG
  arm: dts: vexpress: add missing CCI PMU device node to TC2
  arm: dts: vexpress: describe all PMUs in TC2 dts
  GICv3: Add ITS entry to THUNDER dts
  arm64: dts: Add poweroff button device node for APM X-Gene platform
  ARM: dts: am4372.dtsi: disable rfbi
  ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2
  ARM: dts: am4372: Add emif node
  Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep"
  ARM: sunxi: Enable simplefb in the defconfig
  ARM: Remove deprecated symbol from defconfig files
  ARM: sunxi: Add Machine support for A33
  ARM: sunxi: Introduce Allwinner H3 support
  Documentation: sunxi: Update Allwinner SoC documentation
  ARM: prima2: move to use REGMAP APIs for rtciobrg
  ARM: dts: atlas7: add pinctrl and gpio descriptions
  ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps
  memory: omap-gpmc: Fix parsing of devices
2015-07-11 10:20:36 -07:00
Stefan Tatschner 03bc7523cb can-doc: Fix wrong chapter reference
In f35f6c8f7 (can: update MAINTAINERS and Documentation) chapter 3.3
was removed. This patch fixes some old references to chapter 3.4 which
no longer exists.

Signed-off-by: Stefan Tatschner <stefan@sevenbyte.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 15:18:33 -06:00
Masanari Iida dc12f20ba0 Doc: powerpc: Fix typos in Documentation/powerpc
This patch fix some spelling typo found in Documentation/powerpc.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 14:00:51 -06:00
Krzysztof Kozlowski 9ba6e988c7 Documentation: ARM: EXYNOS: Extend boot loader interface documentation
Extend the kernel-bootloader interface documentation with usage of
register INFORM1 (0x0804) and different CPU resume address on Exynos542x
family (with Multi-Cluster Power Management enabled).

Additionally add glossary and reformat section titles.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 13:59:35 -06:00
Luis de Bethencourt 60498bb58e SubmittingPatches: update CodingStyle reference
Link to the internal up to date Coding Style document inside the Kernel
sources instead of an external one.

Signed-off-by: Luis de Bethencourt <luis@debethencourt.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 13:56:44 -06:00
Olivier C. Larocque 4b10df7f2c Documentation: CodingStyle: remove broken links in the References section
Remove 2 broken links for programming reference books in Appendix I. After
a lookup on an Internet archives web site, it seems that these links have
been broken for around 3 months. We can then assume that they will not be
back up and safely remove them from the documentation.

Signed-off-by: Olivier C. Larocque <olivier.c.larocque@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 13:54:34 -06:00
Ben Hutchings b44158b170 DocBook: Avoid building man pages repeatedly and inconsistently
Some kernel-doc sections are included in multiple DocBook files.  This
means the mandocs target will generate the same manual page multiple
times with different metadata (author name/address and manual title,
taken from the including DocBook file).  If it's invoked in a parallel
build, the output is nondeterminstic.

For each section that is duplicated, mark the less specific manual's
inclusion as 'extra' and exclude it during conversion to manual pages.
Use xmlif for this, as that is bundled with xmlto which we already
use.

I would have preferred to use more conventional markup for this, but
each of the following approaches failed:

1. Wrap the extra inclusions with a new element and add a template to
   the stylesheet to include/exclude them.  Unfortunately DocBook XSL
   doesn't seem to support foreign elements at an intermediate level
   in the document tree.
2. Use DocBook profiling.  This works but requires passing an absolute
   path to the profile stylesheet to xmlto, so it's not portable.
3. Use SGML marked sections.  docbook2x can handle these but xmlto
   chokes on them.

Reported-by: Jérémy Bobbio <lunar@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 11:03:21 -06:00
Ben Hutchings b48ed85145 DocBook: Generate consistent IDs
By default, DocBook XSL uses a non-deterministic function to generate
IDs for HTML elements where it can't take a name from the input
document.  However, it has the option to generate 'consistent'
(deterministic) IDs instead.  Enable this to make the HTML pages
reproducible.

Reported-by: Jérémy Bobbio <lunar@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 11:03:16 -06:00
Ben Hutchings 32c1735c40 DocBook: Don't store mtime (or name) in compressed man pages
The mtime on a man page is the build time.  As gzip stores the mtime
and original name in the compressed file by default, this makes
compressed man pages unreproducible.  Neither of these are important
metadata in this case, so turn this off.

Reported-by: Jérémy Bobbio <lunar@debian.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-10 11:03:11 -06:00
Geert Uytterhoeven eeedcea69e ARM: 8395/1: l2c: Add support for the "arm,shared-override" property
"CoreLink Level 2 Cache Controller L2C-310", p. 2-15, section 2.3.2
Shareable attribute" states:

    "The default behavior of the cache controller with respect to the
     shareable attribute is to transform Normal Memory Non-cacheable
     transactions into:
        - cacheable no allocate for reads
        - write through no write allocate for writes."

Depending on the system architecture, this may cause memory corruption
in the presence of bus mastering devices (e.g. OHCI). To avoid such
corruption, the default behavior can be disabled by setting the Shared
Override bit in the Auxiliary Control register.

Currently the Shared Override bit can be set only using C code:
  - by calling l2x0_init() directly, which is deprecated,
  - by setting/clearing the bit in the machine_desc.l2c_aux_val/mask
    fields, but using values differing from 0/~0 is also deprecated.

Hence add support for an "arm,shared-override" device tree property for
the l2c device node. By specifying this property, affected systems can
indicate that non-cacheable transactions must not be transformed.
Then, it's up to the OS to decide. The current behavior is to set the
"shared attribute override enable" bit, as there may exist kernel linear
mappings and cacheable aliases for the DMA buffers, even if CMA is
enabled.

See also commit 1a8e41cd67 ("ARM: 6395/1: VExpress: Set bit 22 in
the PL310 (cache controller) AuxCtlr register"):

    "Clearing bit 22 in the PL310 Auxiliary Control register (shared
     attribute override enable) has the side effect of transforming
     Normal Shared Non-cacheable reads into Cacheable no-allocate reads.

     Coherent DMA buffers in Linux always have a Cacheable alias via the
     kernel linear mapping and the processor can speculatively load
     cache lines into the PL310 controller. With bit 22 cleared,
     Non-cacheable reads would unexpectedly hit such cache lines leading
     to buffer corruption."

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-07-10 11:07:31 +01:00
Philipp Zabel 553a59fc8f drm/imx: parallel-display: fix drm_panel support
The parallel-display driver used an undocumented, non-standard property
"fsl,panel" to optionally associate with a drm_panel device. This patch
fixes the driver to use the same OF graph bindings as the LDB driver
instead:

    parallel-display {
            compatible = "fsl,imx-parallel-display";
            ...

            port@1 {
                    reg = <1>;

                    parallel_out: endpoint {
                            remote_endpoint = <&panel_in>;
                    };
            };
    };

    panel {
            ...

            port {
                    panel_in: endpoint {
                            remote-endpoint = <&parallel_out>;
                    };
            };
    };

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
2015-07-10 11:02:31 +02:00
Tom Herbert 35a256fee5 ipv6: Nonlocal bind
Add support to allow non-local binds similar to how this was done for IPv4.
Non-local binds are very useful in emulating the Internet in a box, etc.

This add the ip_nonlocal_bind sysctl under ipv6.

Testing:

Set up nonlocal binding and receive routing on a host, e.g.:

ip -6 rule add from ::/0 iif eth0 lookup 200
ip -6 route add local 2001:0:0:1::/64 dev lo proto kernel scope host table 200
sysctl -w net.ipv6.ip_nonlocal_bind=1

Set up routing to 2001:0:0:1::/64 on peer to go to first host

ping6 -I 2001:0:0:1::1 peer-address -- to verify

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-09 21:09:10 -07:00
Kevin Hilman 8dfbc0ab34 Minor fixes for omaps against v4.2-rc1. Mostly just minor dts changes
except for a GPMC fix to not use names for probing devices. Also a
 one liner clean-up to remove unecessary return from a void function.
 
 The summary for the changes being:
 
 - Fix probe for GPMC devices by reoving limitations based on device
   name
 
 - Remove unnecessary return from a void function
 
 - Revert beaglebone RTC sleep fix, we now have a better fix merged
 
 - Add am4372 EMIF node to fix a warning
 
 - Add am57xx-beagle-x15 power supply to fix USB2 if USB1 is disabled
 
 - Disable rfbi for am4372 as it does not have a driver
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Merge tag 'omap-for-v4.2/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v4.2-rc1" from Tony Lindgren:

Minor fixes for omaps against v4.2-rc1. Mostly just minor dts changes
except for a GPMC fix to not use names for probing devices. Also a
one liner clean-up to remove unecessary return from a void function.

The summary for the changes being:

- Fix probe for GPMC devices by reoving limitations based on device
  name

- Remove unnecessary return from a void function

- Revert beaglebone RTC sleep fix, we now have a better fix merged

- Add am4372 EMIF node to fix a warning

- Add am57xx-beagle-x15 power supply to fix USB2 if USB1 is disabled

- Disable rfbi for am4372 as it does not have a driver

* tag 'omap-for-v4.2/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am4372.dtsi: disable rfbi
  ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2
  ARM: dts: am4372: Add emif node
  Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep"
  ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps
  memory: omap-gpmc: Fix parsing of devices
2015-07-09 15:38:16 -07:00
Kevin Hilman d024bae2c4 Allwinner late changes for 4.2
A bunch of defconfig changes, and some patches to make the Allwinner H3 and
 A33 boot properly.
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Merge tag 'sunxi-late-for-4.2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Merge "Allwinner late changes for 4.2" from Maxime Ripard:

Allwinner late changes for 4.2

A bunch of defconfig changes, and some patches to make the Allwinner H3 and
A33 boot properly.

* tag 'sunxi-late-for-4.2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: sunxi: Enable simplefb in the defconfig
  ARM: Remove deprecated symbol from defconfig files
  ARM: sunxi: Add Machine support for A33
  ARM: sunxi: Introduce Allwinner H3 support
  Documentation: sunxi: Update Allwinner SoC documentation
2015-07-09 15:08:44 -07:00
Daniel Grimshaw bd760c498f Documentation: filesystems: btrfs: Fixed typos and whitespace
I am a high school student trying to become familiar with
Linux kernel development. The btrfs documentation in
Documentation/filesystems had a few typos and errors in
whitespace. This patch corrects both of these.

Signed-off-by: Daniel Grimshaw <grimshaw@linux.vnet.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-09 14:31:06 -06:00
Sébastien Hinderer d6eff078e0 SubmittingPatches: fix typo
From 7e0befc8e48a49e2ddf86bbd861027b14ea5a53d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Hinderer?=
 <Sebastien.Hinderer@ens-lyon.org>
Date: Wed, 8 Jul 2015 21:10:18 +0200
Subject: [PATCH] SubmittingPatches: fix typo
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="utf-8"

Signed-off-by: Sébastien Hinderer <Sebastien.Hinderer@ens-lyon.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-07-09 14:30:00 -06:00
Lee Jones f747a1fe78 regulator: pwm-regulator: Remove obsoleted property
In "[3d7ef30] regulator: pwm-regulator: Simplify voltage to duty-cycle
call" we stopped using max_duty_cycle, so we can retire it from device
data and DT.

There is no need to deprecate this property, as it hasn't hit Mainline
yet.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-09 18:54:24 +01:00
Lee Jones a505bfb10a regulator: pwm-regulator: Ensure headings aren't confused with properties
We're using capitalisation and removing the '-' to mitigate confusion.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-09 18:54:24 +01:00
Roger Shimizu c43379e150 ARM: dts: add buffalo linkstation ls-wvl/vl
Add dts file to support Buffalo Linkstation LS-WVL and LS-VL,
which are 3.5" HDD NAS in 2-bay and 1-bay respectively.

[gregory.clement@free-electrons.com: fix typo in pmx-led-function-red]
Signed-off-by: Roger Shimizu <rogershimizu@gmail.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-09 15:28:06 +02:00
Roger Shimizu e54e4b1b62 ARM: dts: add buffalo linkstation ls-wxl/wsxl
Add dts file to support Buffalo Linkstation LS-WXL and LS-WSXL,
which are 2-bay NAS with 3.5" and 2.5" HDD respectively.

Signed-off-by: Roger Shimizu <rogershimizu@gmail.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-09 15:00:02 +02:00
Koro Chen 94319ba10e ASoC: mediatek: Use platform_of_node for machine drivers
This replaces the platform_name in snd_soc_dai_link by device tree node.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-09 09:30:12 +01:00
Zhen Lei 5e92946c39 iommu/arm-smmu: Skip the execution of CMD_PREFETCH_CONFIG
Hisilicon SMMUv3 devices treat CMD_PREFETCH_CONFIG as a illegal command,
execute it will trigger GERROR interrupt. Although the gerror code manage
to turn the prefetch into a SYNC, and the system can continue to run
normally, but it's ugly to print error information.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
[will: extended binding documentation]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-07-08 17:24:39 +01:00
Stephen Boyd ca7d07a22a Merge branch 'clk-rk3368' into clk-next
* clk-rk3368:
  clk: rockchip: add rk3368 clock controller
  clk: rockchip: add missing include guards
  clk: rockchip: add dt-binding header for rk3368
  dt-bindings: add documentation of rk3668 clock controller
  clk: rockchip: define the inverters of rk3066/rk3188 and rk3288
  clk: rockchip: fix issues in the mmc-phase clock
  clk: rockchip: add support for phase inverters
  clk: rockchip: add COMPOSITE_NOGATE_DIVTBL variant
  clk: rockchip: protect register macros against multipart values
  clk: rockchip: fix faulty vip parent name on rk3288
  clk: rockchip: rk3288: add CLK_SET_RATE_PARENT to sclk_mac
2015-07-07 17:20:00 -07:00
Graham Whaley d4acc16515 Documentation: drm: Fix tablulation in KMS properties table
Commit 712a0dd91c ("Documentation/drm: Update rotation property")
left an extra 'rowspan' for the row omap, which pushed the following qxl
rows columns out to column 8 and broke the tabulation.
Remove the errant rowspan.

Signed-off-by: Graham Whaley <graham.whaley@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-07 22:42:58 +02:00
Lee Jones 02258b8bcb regulator: pwm-regulator: Re-write bindings
* Add support for continuous-voltage mode
* Put more meat on the bones with regards to voltage-table mode
* Sort out formatting for ease of consumption

Cc: devicetree@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-07 18:58:27 +01:00
Laxman Dewangan 3692db3a90 regulator: max8973: add support to configure ETR from DT
The MAX8973/MAX77621 feature an Enhanced Transient Response(ETR)
circuit that is enabled through software. The enhanced transient
response reduces the voltage droop during large load steps by
temporarily allowing all three phases to fire in unison, slewing
total inductor current faster than would normally be possible if
all three phases continued to operate 120deg out of phase. The
enhanced transient response detector features two selectable
sensitivity settings, which select the output voltage slew rate
during load transients that triggers the ETR circuit. The sensitivity
of the ETR detector is set by the CKADV[1:0] bits in the CONTROL2
register.

Add support to configure the ETR through platform data from DT.
Update the DT binding document accordingly.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-07 14:43:53 +01:00
Sifan Naeem 93e3a9e999 spi: img-spfi: check for max speed supported by the spfi block
Maximum speed supported by spfi is limited to 1/4 of the spfi clock.

But in some SoCs the maximum speed supported by the spfi block can
be limited to less than 1/4 of the spfi clock. In such cases we have
to define the limit in the device tree so that the driver can pick
it up.

Signed-off-by: Sifan Naeem <sifan.naeem@imgtec.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-07 12:56:36 +01:00
Sergej Sawazki 80eeb1f0f7 clk: add gpio controlled clock multiplexer
Add a common clock driver for basic gpio controlled clock multiplexers.
This driver can be used for devices like 5V41068A or 831721I from IDT
or for discrete multiplexer circuits. The 'select' pin selects one of
two parent clocks.

Cc: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Sergej Sawazki <ce3a@gmx.de>
[sboyd@codeaurora.org: Fix error paths to free memory and do it
in the correct order]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-06 17:20:52 -07:00
Uwe Geuder b51f9b103f PM / hibernate: clarify resume documentation
it was not the whole truth that kernel mode cannot be used with swap on LVM

Signed-off-by: Uwe Geuder <linuxkernel2015-ugeuder@snkmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-07 01:18:11 +02:00
Heiko Stuebner e76ea35ae7 dt-bindings: add documentation of rk3668 clock controller
Add the devicetree binding for the cru on the rk3368 which quite similar
structured as previous clock controllers.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-06 15:08:24 -07:00
Sascha Hauer 859e42800b dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
This adds documentation for the MediaTek SCPSYS unit found in MT8173 SoCs.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-07-06 18:36:31 +02:00
Dave Gerlach fff75ee150 ARM: dts: am4372: Add emif node
Add node for TI AM4372 EMIF. Without this we get a warning with the
recent commit fabbe6df (ARM: OMAP: AM43xx hwmod: Add data for am43xx
emif hwmod).

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-06 05:11:13 -07:00
Karsten Merker 0760bacef7 devicetree: Add msi to the vendor-prefix list
Document the the "msi" (Micro-Star International Co. Ltd.) vendor prefix
which is used in sun6i-a31s-primo81.dts.

Signed-off-by: Karsten Merker <merker@debian.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-07-06 13:36:05 +02:00
Michal Marek 61754c1875 kbuild: Allow arch Makefiles to override {cpp,ld,c}flags
Since commit a1c48bb1 (Makefile: Fix unrecognized cross-compiler command
line options), the arch Makefile is included earlier by the main
Makefile, preventing the arc architecture to set its -O3 compiler
option. Since there might be more use cases for an arch Makefile to
fine-tune the options, add support for ARCH_CPPFLAGS, ARCH_AFLAGS and
ARCH_CFLAGS variables that are appended to the respective kbuild
variables. The user still has the final say via the KCPPFLAGS, KAFLAGS
and KCFLAGS variables.

Reported-by: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Michal Marek <mmarek@suse.com>
2015-07-06 11:09:00 +05:30
Vishnu Patekar 159870d241 ARM: sunxi: Add Machine support for A33
Add machine support for the Allwinner A33 quad core cortex-a7 based SoC,
which is similar to the A23 SoC.

Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Chen-Yu Tsai <wens@csie.org>
2015-07-05 16:33:55 +02:00
Jens Kuske 14a882df14 ARM: sunxi: Introduce Allwinner H3 support
The Allwinner H3 is a quad-core Cortex-A7-based SoC. It is very similar
to other sun8i family SoCs like the A23.

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-07-05 16:33:55 +02:00
Jens Kuske d90a45b1e0 Documentation: sunxi: Update Allwinner SoC documentation
There are some new Allwinner SoCs available, namely A33, A83T and H3.
Update the documentation to mention those and the related documents.

Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-07-05 16:33:54 +02:00
Linus Torvalds 1dc51b8288 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
 "Assorted VFS fixes and related cleanups (IMO the most interesting in
  that part are f_path-related things and Eric's descriptor-related
  stuff).  UFS regression fixes (it got broken last cycle).  9P fixes.
  fs-cache series, DAX patches, Jan's file_remove_suid() work"

[ I'd say this is much more than "fixes and related cleanups".  The
  file_table locking rule change by Eric Dumazet is a rather big and
  fundamental update even if the patch isn't huge.   - Linus ]

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (49 commits)
  9p: cope with bogus responses from server in p9_client_{read,write}
  p9_client_write(): avoid double p9_free_req()
  9p: forgetting to cancel request on interrupted zero-copy RPC
  dax: bdev_direct_access() may sleep
  block: Add support for DAX reads/writes to block devices
  dax: Use copy_from_iter_nocache
  dax: Add block size note to documentation
  fs/file.c: __fget() and dup2() atomicity rules
  fs/file.c: don't acquire files->file_lock in fd_install()
  fs:super:get_anon_bdev: fix race condition could cause dev exceed its upper limitation
  vfs: avoid creation of inode number 0 in get_next_ino
  namei: make set_root_rcu() return void
  make simple_positive() public
  ufs: use dir_pages instead of ufs_dir_pages()
  pagemap.h: move dir_pages() over there
  remove the pointless include of lglock.h
  fs: cleanup slight list_entry abuse
  xfs: Correctly lock inode when removing suid and file capabilities
  fs: Call security_ops->inode_killpriv on truncate
  fs: Provide function telling whether file_remove_privs() will do anything
  ...
2015-07-04 19:36:06 -07:00
Linus Torvalds 5c755fe142 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "It's been a busy development cycle for target-core in a number of
  different areas.

  The fabric API usage for se_node_acl allocation is now within
  target-core code, dropping the external API callers for all fabric
  drivers tree-wide.

  There is a new conversion to RCU hlists for se_node_acl and
  se_portal_group LUN mappings, that turns fast-past LUN lookup into a
  completely lockless code-path.  It also removes the original
  hard-coded limitation of 256 LUNs per fabric endpoint.

  The configfs attributes for backends can now be shared between core
  and driver code, allowing existing drivers to use common code while
  still allowing flexibility for new backend provided attributes.

  The highlights include:

   - Merge sbc_verify_dif_* into common code (sagi)
   - Remove iscsi-target support for obsolete IFMarker/OFMarker
     (Christophe Vu-Brugier)
   - Add bidi support in target/user backend (ilias + vangelis + agover)
   - Move se_node_acl allocation into target-core code (hch)
   - Add crc_t10dif_update common helper (akinobu + mkp)
   - Handle target-core odd SGL mapping for data transfer memory
     (akinobu)
   - Move transport ID handling into target-core (hch)
   - Move task tag into struct se_cmd + support 64-bit tags (bart)
   - Convert se_node_acl->device_list[] to RCU hlist (nab + hch +
     paulmck)
   - Convert se_portal_group->tpg_lun_list[] to RCU hlist (nab + hch +
     paulmck)
   - Simplify target backend driver registration (hch)
   - Consolidate + simplify target backend attribute implementations
     (hch + nab)
   - Subsume se_port + t10_alua_tg_pt_gp_member into se_lun (hch)
   - Drop lun_sep_lock for se_lun->lun_se_dev RCU usage (hch + nab)
   - Drop unnecessary core_tpg_register TFO parameter (nab)
   - Use 64-bit LUNs tree-wide (hannes)
   - Drop left-over TARGET_MAX_LUNS_PER_TRANSPORT limit (hannes)"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (76 commits)
  target: Bump core version to v5.0
  target: remove target_core_configfs.h
  target: remove unused TARGET_CORE_CONFIG_ROOT define
  target: consolidate version defines
  target: implement WRITE_SAME with UNMAP bit using ->execute_unmap
  target: simplify UNMAP handling
  target: replace se_cmd->execute_rw with a protocol_data field
  target/user: Fix inconsistent kmap_atomic/kunmap_atomic
  target: Send UA when changing LUN inventory
  target: Send UA upon LUN RESET tmr completion
  target: Send UA on ALUA target port group change
  target: Convert se_lun->lun_deve_lock to normal spinlock
  target: use 'se_dev_entry' when allocating UAs
  target: Remove 'ua_nacl' pointer from se_ua structure
  target_core_alua: Correct UA handling when switching states
  xen-scsiback: Fix compile warning for 64-bit LUN
  target: Remove TARGET_MAX_LUNS_PER_TRANSPORT
  target: use 64-bit LUNs
  target: Drop duplicate + unused se_dev_check_wce
  target: Drop unnecessary core_tpg_register TFO parameter
  ...
2015-07-04 14:13:43 -07:00
Linus Torvalds 6d7c8e1b3a A very significant modification to NTB in this series.
An abstraction layer was added to allow the hardware and clients to be
 easily added.  This required rewriting the NTB transport layer for this
 abstraction layer.  This modification will allow future
 "high performance" NTB clients.
 
 In addition to this change, a number of performance modifications were
 added.  These changes include NUMA enablement, using CPU memcpy instead
 of asyncdma, and modification of NTB layer MTU size.
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Merge tag 'ntb-4.2' of git://github.com/jonmason/ntb

Pull NTB updates from Jon Mason:
 "This includes a pretty significant reworking of the NTB core code, but
  has already produced some significant performance improvements.

  An abstraction layer was added to allow the hardware and clients to be
  easily added.  This required rewriting the NTB transport layer for
  this abstraction layer.  This modification will allow future "high
  performance" NTB clients.

  In addition to this change, a number of performance modifications were
  added.  These changes include NUMA enablement, using CPU memcpy
  instead of asyncdma, and modification of NTB layer MTU size"

* tag 'ntb-4.2' of git://github.com/jonmason/ntb: (22 commits)
  NTB: Add split BAR output for debugfs stats
  NTB: Change WARN_ON_ONCE to pr_warn_once on unsafe
  NTB: Print driver name and version in module init
  NTB: Increase transport MTU to 64k from 16k
  NTB: Rename Intel code names to platform names
  NTB: Default to CPU memcpy for performance
  NTB: Improve performance with write combining
  NTB: Use NUMA memory in Intel driver
  NTB: Use NUMA memory and DMA chan in transport
  NTB: Rate limit ntb_qp_link_work
  NTB: Add tool test client
  NTB: Add ping pong test client
  NTB: Add parameters for Intel SNB B2B addresses
  NTB: Reset transport QP link stats on down
  NTB: Do not advance transport RX on link down
  NTB: Differentiate transport link down messages
  NTB: Check the device ID to set errata flags
  NTB: Enable link for Intel root port mode in probe
  NTB: Read peer info from local SPAD in transport
  NTB: Split ntb_hw_intel and ntb_transport drivers
  ...
2015-07-04 14:07:47 -07:00
Matthew Wilcox 44f4c054ca dax: Add block size note to documentation
For block devices which are small enough, mkfs will default to creating
a filesystem with block sizes smaller than page size.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-04 15:56:56 -04:00
Dave Jiang 2f887b9a44 NTB: Rename Intel code names to platform names
Instead of using the platform code names, use the correct platform names
to identify the respective Intel NTB hardware.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04 14:09:25 -04:00
Allen Hubbe 578b881ba9 NTB: Add tool test client
This is a simple debugging driver that enables the doorbell and
scratch pad registers to be read and written from the debugfs.  This
tool enables more complicated debugging to be scripted from user space.
This driver may be used to test that your ntb hardware and drivers are
functioning at a basic level.

Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04 14:08:17 -04:00
Allen Hubbe 963de4739f NTB: Add ping pong test client
This is a simple ping pong driver that exercises the scratch pads and
doorbells of the ntb hardware.  This driver may be used to test that
your ntb hardware and drivers are functioning at a basic level.

Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04 14:07:42 -04:00
Allen Hubbe 42fefc86a6 NTB: Add parameters for Intel SNB B2B addresses
Add module parameters for the addresses to be used in B2B topology.

Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04 14:06:40 -04:00
Allen Hubbe e26a5843f7 NTB: Split ntb_hw_intel and ntb_transport drivers
Change ntb_hw_intel to use the new NTB hardware abstraction layer.

Split ntb_transport into its own driver.  Change it to use the new NTB
hardware abstraction layer.

Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04 14:05:49 -04:00
Allen Hubbe a1bd3baeb2 NTB: Add NTB hardware abstraction layer
Abstract the NTB device behind a programming interface, so that it can
support different hardware and client drivers.

Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
2015-07-04 14:04:44 -04:00
Linus Torvalds b1be9ead13 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Two FPU rewrite related fixes.  This addresses all known x86
  regressions at this stage.  Also some other misc fixes"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/fpu: Fix boot crash in the early FPU code
  x86/asm/entry/64: Update path names
  x86/fpu: Fix FPU related boot regression when CPUID masking BIOS feature is enabled
  x86/boot/setup: Clean up the e820_reserve_setup_data() code
  x86/kaslr: Fix typo in the KASLR_FLAG documentation
2015-07-04 08:58:50 -07:00
Linus Torvalds 2fee94b74b - remoteproc fixes/cleanups from Suman Anna
- new remoteproc TI Wakeup M3 driver from Dave Gerlach
 - remoteproc core support for TI's Wakeup M3 driver from both Dave and Suman
 - tiny remoteproc build fix from myself
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Merge tag 'remoteproc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc

Pull remoteproc updates from Ohad Ben-Cohen:

 - remoteproc fixes/cleanups from Suman Anna

 - new remoteproc TI Wakeup M3 driver from Dave Gerlach

 - remoteproc core support for TI's Wakeup M3 driver from both Dave and Suman

 - tiny remoteproc build fix from myself

* tag 'remoteproc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc: fix !CONFIG_OF build breakage
  remoteproc/wkup_m3: add a remoteproc driver for TI Wakeup M3
  Documentation: dt: add bindings for TI Wakeup M3 processor
  remoteproc: add a rproc ops for performing address translation
  remoteproc: introduce rproc_get_by_phandle API
  remoteproc: fix various checkpatch warnings
  remoteproc/davinci: fix quoted split string checkpatch warning
  remoteproc/ste: add blank lines after declarations
2015-07-03 14:57:50 -07:00
Linus Torvalds d033ed9eea - hwspinlock core DT support from Suman Anna
- OMAP hwspinlock DT support from Suman Anna
 - QCOM hwspinlock DT support from Bjorn Andersson
 - a new CSR atlas7 hwspinlock driver from Wei Chen
 - CSR atlas7 hwspinlock DT binding document from Wei Chen
 - a tiny QCOM hwspinlock driver fix from Bjorn Andersson
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Merge tag 'hwspinlock-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock

Pull hwspinlock updates from Ohad Ben-Cohen:

 - hwspinlock core DT support from Suman Anna

 - OMAP hwspinlock DT support from Suman Anna

 - QCOM hwspinlock DT support from Bjorn Andersson

 - a new CSR atlas7 hwspinlock driver from Wei Chen

 - CSR atlas7 hwspinlock DT binding document from Wei Chen

 - a tiny QCOM hwspinlock driver fix from Bjorn Andersson

* tag 'hwspinlock-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock:
  hwspinlock: qcom: Correct msb in regmap_field
  DT: hwspinlock: add the CSR atlas7 hwspinlock bindings document
  hwspinlock: add a CSR atlas7 driver
  hwspinlock: qcom: Add support for Qualcomm HW Mutex block
  DT: hwspinlock: Add binding documentation for Qualcomm hwmutex
  hwspinlock/omap: add support for dt nodes
  Documentation: dt: add the omap hwspinlock bindings document
  hwspinlock/core: add device tree support
  Documentation: dt: add common bindings for hwspinlock
2015-07-03 14:52:25 -07:00
Jean Delvare 97607f9882 hwmon: Document which I2C addresses can be probed
Add an item to the checklist when submitting a new hwmon driver: only
some I2C addresses can be probed, others should not for safety
reasons.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
2015-07-03 14:39:05 +02:00
Roger Lucas f617f7310c hwmon: (w83792d) Additional PWM outputs support
Add pwm[4-7] and the associated pwm[4-7]_mode attributes.

Signed-off-by: Roger Lucas <vt8231@hiddenengine.co.uk>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2015-07-03 14:39:05 +02:00
Linus Torvalds 9bdc771f2c Additional ACPICA material for v4.2-rc1
- Fix system resume problems related to 32-bit and 64-bit versions
    of the Firmware ACPI Control Structure (FACS) in the firmare (Lv
    Zheng).
 
  - Fix double initialization of the FACS (Lv Zheng).
 
  - Add _CLS object processing code to ACPICA (Suravee Suthikulpanit).
 
  - Add support for the (currently missing) new GIC version field in
    the Multiple APIC Description Table (MADT) (Hanjun Guo).
 
  - Add support for overriding objects in the ACPI namespace to
    ACPICA and OSDT support (Lv Zheng, Bob Moore, Zhang Rui).
 
  - Updates related to the TCPA and TPM2 ACPI tables (Bob Moore).
 
  - Restore the commit modifying _REV to always return "2" (as
    required by ACPI 6) and add a blacklisting mechanism for
    systems that may be affected by that change (Rafael J Wysocki).
 
  - Assorted fixes and cleanups (Bob Moore, Lv Zheng, Sascha Wildner).
 
 /
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Merge tag 'acpica-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPICA updates from Rafael Wysocki:
 "Additional ACPICA material for v4.2-rc1

  This will update the ACPICA code in the kernel to upstream revision
  20150619 (a bug-fix release mostly including stable-candidate fixes)
  and restore an earlier ACPICA commit that had to be reverted due to a
  regression introduced by it (the regression is addressed by
  blacklisting the only known system affected by it to date).

  The only new feature added by this update is the support for
  overriding objects in the ACPI namespace and a new ACPI table that can
  be used for that called the Override System Definition Table (OSDT).
  That should allow us to "patch" the ACPI namespace built from
  incomplete or incorrect ACPI System Definition tables (DSDT, SSDT)
  during system startup without the need to provide replacements for all
  of those tables in the future.

  Specifics:

   - Fix system resume problems related to 32-bit and 64-bit versions of
     the Firmware ACPI Control Structure (FACS) in the firmare (Lv
     Zheng)

   - Fix double initialization of the FACS (Lv Zheng)

   - Add _CLS object processing code to ACPICA (Suravee Suthikulpanit)

   - Add support for the (currently missing) new GIC version field in
     the Multiple APIC Description Table (MADT) (Hanjun Guo)

   - Add support for overriding objects in the ACPI namespace to ACPICA
     and OSDT support (Lv Zheng, Bob Moore, Zhang Rui)

   - Updates related to the TCPA and TPM2 ACPI tables (Bob Moore)

   - Restore the commit modifying _REV to always return "2" (as required
     by ACPI 6) and add a blacklisting mechanism for systems that may be
     affected by that change (Rafael J Wysocki)

   - Assorted fixes and cleanups (Bob Moore, Lv Zheng, Sascha Wildner)"

* tag 'acpica-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits)
  Revert 'Revert "ACPICA: Permanently set _REV to the value '2'."'
  ACPI / init: Make it possible to override _REV
  ACPICA: Update version to 20150619
  ACPICA: Comment update, no functional change
  ACPICA: Update TPM2 ACPI table
  ACPICA: Update definitions for the TCPA and TPM2 ACPI tables
  ACPICA: Split C library prototypes to new header
  ACPICA: De-macroize calls to standard C library functions
  ACPI / acpidump: Update acpidump manual
  ACPICA: acpidump: Convert the default behavior to dump from /sys/firmware/acpi/tables
  ACPICA: acpidump: Allow customized tables to be dumped without accessing /dev/mem
  ACPICA: Cleanup output for the ASL Debug object
  ACPICA: Update for acpi_install_table memory types
  ACPICA: Namespace: Change namespace override to avoid node deletion
  ACPICA: Namespace: Add support of OSDT table
  ACPICA: Namespace: Add support to allow overriding objects
  ACPICA: ACPI 6.0: Add values for MADT GIC version field
  ACPICA: Utilities: Add _CLS processing
  ACPICA: Add dragon_fly support to unix file mapping file
  ACPICA: EFI: Add EFI interface definitions to eliminate dependency of GNU EFI
  ...
2015-07-02 17:11:28 -07:00
Rafael J. Wysocki 18d78b64fd ACPI / init: Make it possible to override _REV
The platform firmware on some systems expects Linux to return "5" as
the supported ACPI revision which makes it expose system configuration
information in a special way.

For example, based on what ACPI exports as the supported revision,
Dell XPS 13 (2015) configures its audio device to either work in HDA
mode or in I2S mode, where the former is supposed to be used on Linux
until the latter is fully supported (in the kernel as well as in user
space).

Since ACPI 6 mandates that _REV should return "2" if ACPI 2 or later
is supported by the OS, a subsequent change will make that happen, so
make it possible to override that on systems where "5" is expected to
be returned for Linux to work correctly one them (such as the Dell
machine mentioned above).

Original-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-03 01:06:00 +02:00
Linus Torvalds d4113f2f17 ARM: SoC: late fixes and dependencies
This is a collection of a few late fixes and other misc. stuff that
 had dependencies on things being merged from other trees.
 
 Other than the fixes, the primary feature being added is the
 conversion of some OMAP drivers to the new generic wakeirq interface.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late fixes and dependencies from Kevin Hilman:
 "This is a collection of a few late fixes and other misc stuff that had
  dependencies on things being merged from other trees.

  Other than the fixes, the primary feature being added is the
  conversion of some OMAP drivers to the new generic wakeirq interface"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: multi_v7_defconfig: Enable BRCMNAND driver
  ARM: BCM: Do not select CONFIG_MTD_NAND_BRCMNAND
  ARM: at91/dt: update udc compatible strings
  ARM: at91/dt: trivial: fix USB udc compatible string
  arm64: dts: Add APM X-Gene standby GPIO controller DTS entries
  soc: qcom: spm: Fix idle on THUMB2 kernels
  ARM: dove: fix legacy dove IRQ numbers
  ARM: mvebu: fix suspend to RAM on big-endian configurations
  ARM: mvebu: adjust Armada XP DT spi muxing after pinctrl function rename
  serial: 8250_omap: Move wake-up interrupt to generic wakeirq
  serial: omap: Switch wake-up interrupt to generic wakeirq
  mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq
2015-07-02 14:40:49 -07:00
Linus Torvalds a7ba4bf5e7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
 "This is the start of improving fuse scalability.

  An input queue and a processing queue is split out from the monolithic
  fuse connection, each of those having their own spinlock.  The end of
  the patchset adds the ability to clone a fuse connection.  This means,
  that instead of having to read/write requests/answers on a single fuse
  device fd, the fuse daemon can have multiple distinct file descriptors
  open.  Each of those can be used to receive requests and send answers,
  currently the only constraint is that a request must be answered on
  the same fd as it was read from.

  This can be extended further to allow binding a device clone to a
  specific CPU or NUMA node.

  Based on a patchset by Srinivas Eeda and Ashish Samant.  Thanks to
  Ashish for the review of this series"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (40 commits)
  fuse: update MAINTAINERS entry
  fuse: separate pqueue for clones
  fuse: introduce per-instance fuse_dev structure
  fuse: device fd clone
  fuse: abort: no fc->lock needed for request ending
  fuse: no fc->lock for pqueue parts
  fuse: no fc->lock in request_end()
  fuse: cleanup request_end()
  fuse: request_end(): do once
  fuse: add req flag for private list
  fuse: pqueue locking
  fuse: abort: group pqueue accesses
  fuse: cleanup fuse_dev_do_read()
  fuse: move list_del_init() from request_end() into callers
  fuse: duplicate ->connected in pqueue
  fuse: separate out processing queue
  fuse: simplify request_wait()
  fuse: no fc->lock for iqueue parts
  fuse: allow interrupt queuing without fc->lock
  fuse: iqueue locking
  ...
2015-07-02 11:21:26 -07:00
James C Boyd 864d5bb957 x86/asm/entry/64: Update path names
The paths mentioned in this file weren't updated through some file
rename commits. Fix them to refer to the correct path.

Signed-off-by: James C Boyd <jcboyd.dev@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: corbet@lwn.net
Cc: trivial@kernel.org
Link: http://lkml.kernel.org/r/1435781606-3037-1-git-send-email-jcboyd.dev@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-02 11:08:50 +02:00
Linus Torvalds 4da3064d17 Devicetree changes for v4.2
A whole lot of bug fixes. Nothing stands out here except the ability to
 enable CONFIG_OF on every architecture, and an import of a newer version
 of dtc.
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux

Pull devicetree updates from Grant Likely:
 "A whole lot of bug fixes.

  Nothing stands out here except the ability to enable CONFIG_OF on
  every architecture, and an import of a newer version of dtc"

* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (22 commits)
  of/irq: Rename "intc_desc" to "of_intc_desc" to fix OF on sh
  of/irq: Fix pSeries boot failure
  Documentation: DT: Fix a typo in the filename "lantiq,<chip>-pinumx.txt"
  of: define of_find_node_by_phandle for !CONFIG_OF
  of/address: use atomic allocation in pci_register_io_range()
  of: Add vendor prefix for Zodiac Inflight Innovations
  dt/fdt: add empty versions of early_init_dt_*_memory_arch
  of: clean-up unnecessary libfdt include paths
  of: make unittest select OF_EARLY_FLATTREE instead of depend on it
  of: make CONFIG_OF user selectable
  MIPS: prepare for user enabling of CONFIG_OF
  of/fdt: fix argument name and add comments of unflatten_dt_node()
  of: return NUMA_NO_NODE from fallback of_node_to_nid()
  tps6507x.txt: Remove executable permission
  of/overlay: Grammar s/an negative/a negative/
  of/fdt: Make fdt blob input parameters of unflatten functions const
  of: add helper function to retrive match data
  of: Grammar s/property exist/property exists/
  of: Move OF flags to be visible even when !CONFIG_OF
  scripts/dtc: Update to upstream version 9d3649bd3be245c9
  ...
2015-07-01 19:40:18 -07:00
Linus Torvalds 93899e39e8 Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
 "This contains:

   - new driver for ST's LPC Watchdog
   - new driver for Conexant Digicolor CX92755 SoC
   - new driver for DA9062 watchdog
   - Addition of the watchdog registration deferral mechanism
   - several improvements on omap_wdt
   - several improvements and reboot-support for imgpdc_wdt
   - max63xx_wdt improvements
   - imx2_wdt improvements
   - dw_wdt improvements
   - and other small improvements and fixes"

* git://www.linux-watchdog.org/linux-watchdog: (37 commits)
  watchdog: omap_wdt: early_enable module parameter
  watchdog: gpio_wdt: Add option for early registration
  watchdog: watchdog_core: Add watchdog registration deferral mechanism
  watchdog: max63xx: dynamically allocate device
  watchdog: imx2_wdt: Disable previously acquired clock on error path
  watchdog: imx2_wdt: Check for clk_prepare_enable() error
  watchdog: hpwdt: Add support for WDIOC_SETOPTIONS
  watchdog: docs: omap_wdt also understands nowayout
  watchdog: omap_wdt: implement get_timeleft
  watchdog: da9062: DA9062 watchdog driver
  watchdog: imx2_wdt: set watchdog parent device
  watchdog: mena21_wdt: Fix possible NULL pointer dereference
  watchdog: dw_wdt: keepalive the watchdog at write time
  watchdog: dw_wdt: No need for a spinlock
  watchdog: imx2_wdt: also set wdog->timeout to new_timeout
  watchdog: Allow compile test of GPIO consumers if !GPIOLIB
  watchdog: cadence: Add dependency on HAS_IOMEM
  watchdog: max63xx_wdt: Constify platform_device_id
  watchdog: MAX63XX_WATCHDOG does not depend on ARM
  watchdog: imgpdc: Add some documentation about the timeout
  ...
2015-07-01 19:33:16 -07:00
Linus Torvalds 5f1201d515 The changes to the common clock framework for 4.2 are dominated by new
drivers and updates to existing ones, as usual. There are some fixes to
 the framework itself and several cleanups for sparse warnings, etc.
 Please consider pulling.
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Merge tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clock framework updates from Michael Turquette:
 "The changes to the common clock framework for 4.2 are dominated by new
  drivers and updates to existing ones, as usual.

  There are some fixes to the framework itself and several cleanups for
  sparse warnings, etc"

* tag 'clk-for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (135 commits)
  clk: stm32: Add clock driver for STM32F4[23]xxx devices
  dt-bindings: Document the STM32F4 clock bindings
  cpufreq: exynos: remove Exynos4210 specific cpufreq driver support
  ARM: Exynos: switch to using generic cpufreq driver for Exynos4210
  clk: samsung: exynos4: add cpu clock configuration data and instantiate cpu clock
  clk: samsung: add infrastructure to register cpu clocks
  clk: add CLK_RECALC_NEW_RATES clock flag for Exynos cpu clock support
  doc: dt: add documentation for lpc1850-ccu clk driver
  clk: add lpc18xx ccu clk driver
  doc: dt: add documentation for lpc1850-cgu clk driver
  clk: add lpc18xx cgu clk driver
  clk: keystone: add support for post divider register for main pll
  clk: mvebu: flag the crypto clk as CLK_IGNORE_UNUSED
  clk: cygnus: remove Cygnus dummy clock binding
  clk: cygnus: add clock support for Broadcom Cygnus
  clk: Change bcm clocks build dependency
  clk: iproc: add initial common clock support
  clk: iproc: define Broadcom iProc clock binding
  MAINTAINERS: update email for Michael Turquette
  clk: meson: add some error handling in meson_clk_register_cpu()
  ...
2015-07-01 19:22:00 -07:00
Linus Torvalds 13d45f79a2 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem updates from Bryan Wu:
 "In this cycle, we finished to merge patches for LED Flash class
  driver.

  Other than that we have some bug fixes and new drivers for LED
  controllers"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (33 commits)
  leds:lp55xx: fix firmware loading error
  leds: fix max77693-led build errors
  leds: fix aat1290 build errors
  leds: aat1290: pass flags parameter to devm_gpiod_get
  leds: ktd2692: pass flags parameter to devm_gpiod_get
  drivers/leds: don't use module_init in non-modular leds-cobalt-raq.c
  leds: aat1290: add support for V4L2 Flash sub-device
  DT: aat1290: Document handling external strobe sources
  leds: max77693: add support for V4L2 Flash sub-device
  media: Add registration helpers for V4L2 flash sub-devices
  v4l: async: Add a pointer to of_node to struct v4l2_subdev, match it
  Documentation: leds: Add description of v4l2-flash sub-device
  leds: add BCM6358 LED driver
  leds: add DT binding for BCM6358 LED controller
  leds: fix brightness changing when software blinking is active
  Documentation: leds-lp5523: describe master fader attributes
  leds: lp5523: add master_fader support
  leds: leds-gpio: Allow compile test if !GPIOLIB
  leds: leds-gpio: Add missing #include <linux/of.h>
  gpiolib: Add missing dummies for the unified device properties interface
  ...
2015-07-01 19:09:11 -07:00
Linus Torvalds 05fde26a94 platform-drivers-x86 got 4.2
asus-wmi: Fan control
 dell*: Add Dell airplane mode switch driver
 ideapad-laptop: Platform rfkill fixes, and regression fix
 pvpanic: Handle missing _STA correctly
 toshiba*: Rafactor bluetooth support, haps documentation, driver cleanup
 other: Use acpi_video_unregister_backlight instead of acpi_video_unregister in
        serveral drivers.
        Orphan msi-wmi.
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Merge tag 'platform-drivers-x86-v4.2-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:
 "Fairly routine update for platform-drivers-x86.

  Mostly fixes and cleanups, with a significant refactoring of toshiba*
  drivers.  Includes the addition of the dell-rbtn driver.

  Details:

  asus-wmi:
   - fan control

  dell*:
   - add Dell airplane mode switch driver

  ideapad-laptop:
   - platform rfkill fixes, and regression fix

  pvpanic:
   - handle missing _STA correctly

  toshiba*:
   - rafactor bluetooth support
   - haps documentation
   - driver cleanup

  other:
   - Use acpi_video_unregister_backlight instead of
     acpi_video_unregister in serveral drivers.
   - Orphan msi-wmi.

* tag 'platform-drivers-x86-v4.2-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (24 commits)
  MAINTAINERS: Orphan x86 driver msi-wmi
  ideapad: fix software rfkill setting
  dell-laptop: Use dell-rbtn instead i8042 filter when possible
  dell-rbtn: Export notifier for other kernel modules
  dell-rbtn: Dell Airplane Mode Switch driver
  samsung-laptop: Use acpi_video_unregister_backlight instead of acpi_video_unregister
  asus-wmi: Use acpi_video_unregister_backlight instead of acpi_video_unregister
  apple_gmux: Use acpi_video_unregister_backlight instead of acpi_video_unregister
  pvpanic: handle missing _STA correctly
  ideapad_laptop: Lenovo G50-30 fix rfkill reports wireless blocked
  asus-wmi: add fan control
  Documentation/ABI: Add file describing the sysfs entries for toshiba_haps
  toshiba_haps: Make use of DEVICE_ATTR_{RW, WO} macros
  toshiba_haps: Replace sscanf with kstrtoint
  toshiba_acpi: Bump driver version to 0.22
  toshiba_acpi: Remove TOS_FAILURE check from some functions
  toshiba_acpi: Comments cleanup
  toshiba_acpi: Rename hci_{read, write}1 functions
  toshiba_acpi: Remove no longer needed hci_{read, write}2 functions
  toshiba_bluetooth: Change BT status message to debug
  ...
2015-07-01 18:55:34 -07:00
Linus Torvalds 47ebed96ff Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) mlx4 driver bug fixes (TX queue wakeups, csum complete indications)
    from Ido Shamay, Eran Ben Elisha, and Or Gerlitz.

 2) Missing unlock in error path of PTP support in renesas driver, from
    Dan Carpenter.

 3) Add Vitesse 8641 phy IDs to vitesse PHY driver, from Shaohui Xie.

 4) Bnx2x driver bug fixes (linearization of encap packets, scratchpad
    parity error notifications, flow-control and speed settings) from
    Yuval Mintz, Manish Chopra, Shahed Shaikh, and Ariel Elior.

 5) ipv6 extension header parsing in the igb chip has a HW errata,
    disable it.  Frm Todd Fujinaka.

 6) Fix PCI link state locking issue in e1000e driver, from Yanir
    Lubetkin.

 7) Cure panics during MTU change in i40e, from Mitch Williams.

 8) Don't leak promisc refs in DSA slave driver, from Gilad Ben-Yossef.

 9) Add missing HAS_DMA dep to VIA Rhine driver, from Geery
    Uytterhoeven.

10) Make sure DMA map/unmap calls are symmetric in bnx2x driver, from
    Michal Schmidt.

11) Workaround for MDIO access problems in bcm7xxx devices, from FLorian
    Fainelli.

12) Fix races in SCTP protocol between OTTB responses and route
    removals, from Alexander Sverdlin.

13) Fix jumbo frame checksum issue with some mvneta devices, from Simon
    Guinot.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (58 commits)
  sock_diag: don't broadcast kernel sockets
  net: mvneta: disable IP checksum with jumbo frames for Armada 370
  ARM: mvebu: update Ethernet compatible string for Armada XP
  net: mvneta: introduce compatible string "marvell, armada-xp-neta"
  api: fix compatibility of linux/in.h with netinet/in.h
  net: icplus: fix typo in constant name
  sis900: Trivial: Fix typos in enums
  stmmac: Trivial: fix typo in constant name
  sctp: Fix race between OOTB responce and route removal
  net-Liquidio: Delete unnecessary checks before the function call "vfree"
  vmxnet3: Bump up driver version number
  amd-xgbe: Add the __GFP_NOWARN flag to Rx buffer allocation
  net: phy: mdio-bcm-unimac: workaround initial read failures for integrated PHYs
  net: bcmgenet: workaround initial read failures for integrated PHYs
  net: phy: bcm7xxx: workaround MDIO management controller initial read
  bnx2x: fix DMA API usage
  net: via: VIA_RHINE and VIA_VELOCITY should depend on HAS_DMA
  net/phy: tune get_phy_c45_ids to support more c45 phy
  bnx2x: fix lockdep splat
  net: fec: don't access RACC register when not available
  ...
2015-07-01 14:58:07 -07:00
Nicolas Ferre 50f0a44991 ARM: at91/dt: trivial: fix USB udc compatible string
To please checkpatch and the tiresome reader, add the "atmel," prefix to the
USB udc compatible string.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <stable@vger.kernel.org>  #4.0+
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-07-01 12:35:48 -07:00
Kevin Hilman 593aae2142 Omap driver changes for v4.2 to switch drivers over to Linux generic
wake IRQ events for omap_hsmmc, 8250_omap and omap-serial
 drivers.
 
 The generic wake IRQs also fix issues that these drivers potentially
 have with IRQ re-entrancy at least for serial-omap.
 
 Note that because of dependencies and merge conflicts these are
 based on Rafael's pm-wakeirq and Greg's tty-next branches.
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Merge tag 'omap-for-v4.2/wakeirq-drivers-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/late

Merge "omap generic wakeirq for v4.2 merge window" from Tony Lindgren:

Omap driver changes for v4.2 to switch drivers over to Linux generic
wake IRQ events for omap_hsmmc, 8250_omap and omap-serial
drivers.

The generic wake IRQs also fix issues that these drivers potentially
have with IRQ re-entrancy at least for serial-omap.

Note that because of dependencies and merge conflicts these are
based on Rafael's pm-wakeirq and Greg's tty-next branches.

* tag 'omap-for-v4.2/wakeirq-drivers-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (148 commits)
  serial: 8250_omap: Move wake-up interrupt to generic wakeirq
  serial: omap: Switch wake-up interrupt to generic wakeirq
  tty: move linux/gsmmux.h to uapi
  doc: dt: add documentation for nxp,lpc1850-uart
  serial: 8250: add LPC18xx/43xx UART driver
  serial: 8250_uniphier: add UniPhier serial driver
  serial: 8250_dw: support ACPI platforms with integrated DMA engine
  serial: of_serial: check the return value of clk_prepare_enable()
  serial: of_serial: use devm_clk_get() instead of clk_get()
  serial: earlycon: Add support for big-endian MMIO accesses
  serial: sirf: use hrtimer for data rx
  serial: sirf: correct the fifo empty_bit
  serial: sirf: fix system hung on console log output
  serial: 8250: remove return statements from void function
  sc16is7xx: use kworker for RS-485 configuration
  sc16is7xx: use kworker to update ier bits
  sc16is7xx: use kworker for md_proc
  sc16is7xx: move RTS delay to workqueue
  sc16is7xx: use kthread_worker for tx_work and irq
  sc16is7xx: use LSR_TEMT_BIT in .tx_empty()
  ...
2015-07-01 12:25:13 -07:00
Linus Torvalds 0890a26479 - Support for HS38 cores based on ARCv2 ISA
ARCv2 is the next generation ISA from Synopsys and basis for the
      HS3{4,6,8} families of processors which retain the traditional ARC mantra of
      low power and configurability and are now more performant and feature rich.
 
      HS38x is a 10 stage pipeline core which supports MMU (with huge pages) and
      SMP (upto 4 cores) among other features.
 
      + www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor
      + http://news.synopsys.com/2014-10-14-New-DesignWare-ARC-HS38-Processor-Doubles-Performance-for-Embedded-Linux-Applications
      + http://www.embedded.com/electronics-news/4435975/Synopsys-ARC-HS38-core-gives-2X-boost-to-Linux-based-apps
 
  - Support for ARC SDP (Software Development platform): Main Board + CPU Cards
     = AXS101: CPU Card with ARC700 in silicon @ 700 MHz
     = AXS103: CPU Card with HS38x in FPGA
 
  - Refactoring of ARCompact port to accomodate new ARCv2 ISA
  - Miscll updates/cleanups
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Merge tag 'arc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC architecture updates from Vineet Gupta:

 - support for HS38 cores based on ARCv2 ISA

     ARCv2 is the next generation ISA from Synopsys and basis for the
     HS3{4,6,8} families of processors which retain the traditional ARC mantra of
     low power and configurability and are now more performant and feature rich.

     HS38x is a 10 stage pipeline core which supports MMU (with huge pages) and
     SMP (upto 4 cores) among other features.

     + www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor
     + http://news.synopsys.com/2014-10-14-New-DesignWare-ARC-HS38-Processor-Doubles-Performance-for-Embedded-Linux-Applications
     + http://www.embedded.com/electronics-news/4435975/Synopsys-ARC-HS38-core-gives-2X-boost-to-Linux-based-apps

 - support for ARC SDP (Software Development platform): Main Board + CPU Cards
    = AXS101: CPU Card with ARC700 in silicon @ 700 MHz
    = AXS103: CPU Card with HS38x in FPGA

 - refactoring of ARCompact port to accomodate new ARCv2 ISA

 - misc updates/cleanups

* tag 'arc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (72 commits)
  ARC: Fix build failures for ARCompact in linux-next after ARCv2 support
  ARCv2: Allow older gcc to cope with new regime of ARCv2/ARCompact support
  ARCv2: [vdk] dts files and defconfig for HS38 VDK
  ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores
  ARC: [axs101] Prepare for AXS103
  ARCv2: [nsim*hs*] Support simulation platforms for HS38x cores
  ARCv2: All bits in place, allow ARCv2 builds
  ARCv2: SLC: Handle explcit flush for DMA ops (w/o IO-coherency)
  ARCv2: STAR 9000837815 workaround hardware exclusive transactions livelock
  ARC: Reduce bitops lines of code using macros
  ARCv2: barriers
  arch: conditionally define smp_{mb,rmb,wmb}
  ARC: add smp barriers around atomics per Documentation/atomic_ops.txt
  ARC: add compiler barrier to LLSC based cmpxchg
  ARCv2: SMP: intc: IDU 2nd level intc for dynamic IRQ distribution
  ARCv2: SMP: clocksource: Enable Global Real Time counter
  ARCv2: SMP: ARConnect debug/robustness
  ARCv2: SMP: Support ARConnect (MCIP) for Inter-Core-Interrupts et al
  ARC: make plat_smp_ops weak to allow over-rides
  ARCv2: clocksource: Introduce 64bit local RTC counter
  ...
2015-07-01 09:24:26 -07:00
Lars Poeschel b2102eb36e watchdog: omap_wdt: early_enable module parameter
Add a early_enable module parameter to the omap_wdt that starts the
watchdog on module insertion. The default value is 0 which does not
start the watchdog - which also does not change the behavior if the
parameter is not given.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-07-01 16:43:17 +02:00
Miklos Szeredi 00c570f4ba fuse: device fd clone
Allow an open fuse device to be "cloned".  Userspace can create a clone by:

      newfd = open("/dev/fuse", O_RDWR)
      ioctl(newfd, FUSE_DEV_IOC_CLONE, &oldfd);

At this point newfd will refer to the same fuse connection as oldfd.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Reviewed-by: Ashish Samant <ashish.samant@oracle.com>
2015-07-01 16:26:08 +02:00
Eric Dumazet 8a81252b77 fs/file.c: don't acquire files->file_lock in fd_install()
Mateusz Guzik reported :

 Currently obtaining a new file descriptor results in locking fdtable
 twice - once in order to reserve a slot and second time to fill it.

Holding the spinlock in __fd_install() is needed in case a resize is
done, or to prevent a resize.

Mateusz provided an RFC patch and a micro benchmark :
  http://people.redhat.com/~mguzik/pipebench.c

A resize is an unlikely operation in a process lifetime,
as table size is at least doubled at every resize.

We can use RCU instead of the spinlock.

__fd_install() must wait if a resize is in progress.

The resize must block new __fd_install() callers from starting,
and wait that ongoing install are finished (synchronize_sched())

resize should be attempted by a single thread to not waste resources.

rcu_sched variant is used, as __fd_install() and expand_fdtable() run
from process context.

It gives us a ~30% speedup using pipebench on a dual Intel(R) Xeon(R)
CPU E5-2696 v2 @ 2.50GHz

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Mateusz Guzik <mguzik@redhat.com>
Acked-by: Mateusz Guzik <mguzik@redhat.com>
Tested-by: Mateusz Guzik <mguzik@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-07-01 02:30:09 -04:00
Linus Torvalds 68b4449d79 xfs: update for 4.2-rc1
This update contains:
 
 o A new sparse on-disk inode record format to allow small extents to
   be used for inode allocation when free space is fragmented.
 o DAX support. This includes minor changes to the DAX core code to
   fix problems with lock ordering and bufferhead mapping abuse.
 o transaction commit interface cleanup
 o removal of various unnecessary XFS specific type definitions
 o cleanup and optimisation of freelist preparation before allocation
 o various minor cleanups
 o bug fixes for
 	- transaction reservation leaks
 	- incorrect inode logging in unwritten extent conversion
 	- mmap lock vs freeze ordering
 	- remote symlink mishandling
 	- attribute fork removal issues.
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Merge tag 'xfs-for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

Pul xfs updates from Dave Chinner:
 "There's a couple of small API changes to the core DAX code which
  required small changes to the ext2 and ext4 code bases, but otherwise
  everything is within the XFS codebase.

  This update contains:

   - A new sparse on-disk inode record format to allow small extents to
     be used for inode allocation when free space is fragmented.

   - DAX support.  This includes minor changes to the DAX core code to
     fix problems with lock ordering and bufferhead mapping abuse.

   - transaction commit interface cleanup

   - removal of various unnecessary XFS specific type definitions

   - cleanup and optimisation of freelist preparation before allocation

   - various minor cleanups

   - bug fixes for
	- transaction reservation leaks
	- incorrect inode logging in unwritten extent conversion
	- mmap lock vs freeze ordering
	- remote symlink mishandling
	- attribute fork removal issues"

* tag 'xfs-for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (49 commits)
  xfs: don't truncate attribute extents if no extents exist
  xfs: clean up XFS_MIN_FREELIST macros
  xfs: sanitise error handling in xfs_alloc_fix_freelist
  xfs: factor out free space extent length check
  xfs: xfs_alloc_fix_freelist() can use incore perag structures
  xfs: remove xfs_caddr_t
  xfs: use void pointers in log validation helpers
  xfs: return a void pointer from xfs_buf_offset
  xfs: remove inst_t
  xfs: remove __psint_t and __psunsigned_t
  xfs: fix remote symlinks on V5/CRC filesystems
  xfs: fix xfs_log_done interface
  xfs: saner xfs_trans_commit interface
  xfs: remove the flags argument to xfs_trans_cancel
  xfs: pass a boolean flag to xfs_trans_free_items
  xfs: switch remaining xfs_trans_dup users to xfs_trans_roll
  xfs: check min blks for random debug mode sparse allocations
  xfs: fix sparse inodes 32-bit compile failure
  xfs: add initial DAX support
  xfs: add DAX IO path support
  ...
2015-06-30 20:16:08 -07:00
Simon Guinot f522a975a8 net: mvneta: introduce compatible string "marvell, armada-xp-neta"
The mvneta driver supports the Ethernet IP found in the Armada 370, XP,
380 and 385 SoCs. Since at least one more hardware feature is available
for the Armada XP SoCs then a way to identify them is needed.

This patch introduces a new compatible string "marvell,armada-xp-neta".

Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Fixes: c5aff18204 ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Cc: <stable@vger.kernel.org> # v3.8+
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-30 09:37:09 -07:00
Grant Likely becfc3c86d Merge remote-tracking branch 'robh/for-next' into devicetree/next 2015-06-30 14:28:52 +01:00
Ingo Molnar dc5fb575df Merge branch 'x86/boot' into x86/urgent
Merge branch that got ready.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-06-30 07:57:04 +02:00
Linus Torvalds 88793e5c77 The libnvdimm sub-system introduces, in addition to the libnvdimm-core,
4 drivers / enabling modules:
 
 NFIT:
 Instantiates an "nvdimm bus" with the core and registers memory devices
 (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware Interface
 table).  After registering NVDIMMs the NFIT driver then registers
 "region" devices.  A libnvdimm-region defines an access mode and the
 boundaries of persistent memory media.  A region may span multiple
 NVDIMMs that are interleaved by the hardware memory controller.  In
 turn, a libnvdimm-region can be carved into a "namespace" device and
 bound to the PMEM or BLK driver which will attach a Linux block device
 (disk) interface to the memory.
 
 PMEM:
 Initially merged in v4.1 this driver for contiguous spans of persistent
 memory address ranges is re-worked to drive PMEM-namespaces emitted by
 the libnvdimm-core.  In this update the PMEM driver, on x86, gains the
 ability to assert that writes to persistent memory have been flushed all
 the way through the caches and buffers in the platform to persistent
 media.  See memcpy_to_pmem() and wmb_pmem().
 
 BLK:
 This new driver enables access to persistent memory media through "Block
 Data Windows" as defined by the NFIT.  The primary difference of this
 driver to PMEM is that only a small window of persistent memory is
 mapped into system address space at any given point in time.  Per-NVDIMM
 windows are reprogrammed at run time, per-I/O, to access different
 portions of the media.  BLK-mode, by definition, does not support DAX.
 
 BTT:
 This is a library, optionally consumed by either PMEM or BLK, that
 converts a byte-accessible namespace into a disk with atomic sector
 update semantics (prevents sector tearing on crash or power loss).  The
 sinister aspect of sector tearing is that most applications do not know
 they have a atomic sector dependency.  At least today's disk's rarely
 ever tear sectors and if they do one almost certainly gets a CRC error
 on access.  NVDIMMs will always tear and always silently.  Until an
 application is audited to be robust in the presence of sector-tearing
 the usage of BTT is recommended.
 
 Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
 Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
 Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
 Wysocki, and Bob Moore.
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Merge tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm

Pull libnvdimm subsystem from Dan Williams:
 "The libnvdimm sub-system introduces, in addition to the
  libnvdimm-core, 4 drivers / enabling modules:

  NFIT:
    Instantiates an "nvdimm bus" with the core and registers memory
    devices (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware
    Interface table).

    After registering NVDIMMs the NFIT driver then registers "region"
    devices.  A libnvdimm-region defines an access mode and the
    boundaries of persistent memory media.  A region may span multiple
    NVDIMMs that are interleaved by the hardware memory controller.  In
    turn, a libnvdimm-region can be carved into a "namespace" device and
    bound to the PMEM or BLK driver which will attach a Linux block
    device (disk) interface to the memory.

  PMEM:
    Initially merged in v4.1 this driver for contiguous spans of
    persistent memory address ranges is re-worked to drive
    PMEM-namespaces emitted by the libnvdimm-core.

    In this update the PMEM driver, on x86, gains the ability to assert
    that writes to persistent memory have been flushed all the way
    through the caches and buffers in the platform to persistent media.
    See memcpy_to_pmem() and wmb_pmem().

  BLK:
    This new driver enables access to persistent memory media through
    "Block Data Windows" as defined by the NFIT.  The primary difference
    of this driver to PMEM is that only a small window of persistent
    memory is mapped into system address space at any given point in
    time.

    Per-NVDIMM windows are reprogrammed at run time, per-I/O, to access
    different portions of the media.  BLK-mode, by definition, does not
    support DAX.

  BTT:
    This is a library, optionally consumed by either PMEM or BLK, that
    converts a byte-accessible namespace into a disk with atomic sector
    update semantics (prevents sector tearing on crash or power loss).

    The sinister aspect of sector tearing is that most applications do
    not know they have a atomic sector dependency.  At least today's
    disk's rarely ever tear sectors and if they do one almost certainly
    gets a CRC error on access.  NVDIMMs will always tear and always
    silently.  Until an application is audited to be robust in the
    presence of sector-tearing the usage of BTT is recommended.

  Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
  Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
  Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
  Wysocki, and Bob Moore"

* tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: (33 commits)
  arch, x86: pmem api for ensuring durability of persistent memory updates
  libnvdimm: Add sysfs numa_node to NVDIMM devices
  libnvdimm: Set numa_node to NVDIMM devices
  acpi: Add acpi_map_pxm_to_online_node()
  libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only
  pmem: flag pmem block devices as non-rotational
  libnvdimm: enable iostat
  pmem: make_request cleanups
  libnvdimm, pmem: fix up max_hw_sectors
  libnvdimm, blk: add support for blk integrity
  libnvdimm, btt: add support for blk integrity
  fs/block_dev.c: skip rw_page if bdev has integrity
  libnvdimm: Non-Volatile Devices
  tools/testing/nvdimm: libnvdimm unit test infrastructure
  libnvdimm, nfit, nd_blk: driver for BLK-mode access persistent memory
  nd_btt: atomic sector updates
  libnvdimm: infrastructure for btt devices
  libnvdimm: write blk label set
  libnvdimm: write pmem label set
  libnvdimm: blk labels and namespace instantiation
  ...
2015-06-29 10:34:42 -07:00
Linus Torvalds 1bc5e157ed dmaengine updates for 4.2-rc1
This time we have support for few new devices, few new features and odd
 fixes spread thru the subsystem.
 
 New devices added
 - support for CSRatlas7 dma controller
 - Allwinner H3(sun8i) controller
 - TI DMA crossbar driver on DRA7x
 - new pxa driver
 
 New features added:
 - memset support is bought back now that we have a user in xdmac controller
 - interleaved transfers support different source and destination strides
 - supporting DMA routers and configuration thru DT
 - support for reusing descriptors
 - xdmac memset and interleaved transfer support
 - hdmac support for interleaved transfers
 - omap-dma support for memcpy
 
 Others
 - Constify platform_device_id
 - mv_xor fixes and improvements
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Merge tag 'dmaengine-4.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "This time we have support for few new devices, few new features and
  odd fixes spread thru the subsystem.

  New devices added:
   - support for CSRatlas7 dma controller
   - Allwinner H3(sun8i) controller
   - TI DMA crossbar driver on DRA7x
   - new pxa driver

  New features added:
   - memset support is bought back now that we have a user in xdmac controller
   - interleaved transfers support different source and destination strides
   - supporting DMA routers and configuration thru DT
   - support for reusing descriptors
   - xdmac memset and interleaved transfer support
   - hdmac support for interleaved transfers
   - omap-dma support for memcpy

  Others:
   - Constify platform_device_id
   - mv_xor fixes and improvements"

* tag 'dmaengine-4.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (46 commits)
  dmaengine: xgene: fix file permission
  dmaengine: fsl-edma: clear pending interrupts on initialization
  dmaengine: xdmac: Add memset support
  Documentation: dmaengine: document DMA_CTRL_ACK
  dmaengine: virt-dma: don't always free descriptor upon completion
  dmaengine: Revert "drivers/dma: remove unused support for MEMSET operations"
  dmaengine: hdmac: Implement interleaved transfers
  dmaengine: Move icg helpers to global header
  dmaengine: mv_xor: improve descriptors list handling and reduce locking
  dmaengine: mv_xor: Enlarge descriptor pool size
  dmaengine: mv_xor: add support for a38x command in descriptor mode
  dmaengine: mv_xor: Rename function for consistent naming
  dmaengine: mv_xor: bug fix for racing condition in descriptors cleanup
  dmaengine: pl330: fix wording in mcbufsz message
  dmaengine: sirf: add CSRatlas7 SoC support
  dmaengine: xgene-dma: Fix "incorrect type in assignement" warnings
  dmaengine: fix kernel-doc documentation
  dmaengine: pxa_dma: add support for legacy transition
  dmaengine: pxa_dma: add debug information
  dmaengine: pxa: add pxa dmaengine driver
  ...
2015-06-29 09:44:45 -07:00
Jean-Baptiste Theou ef90174f82 watchdog: watchdog_core: Add watchdog registration deferral mechanism
Currently, watchdog subsystem require the misc subsystem to
register a watchdog. This may not be the case in case of an
early registration of a watchdog, which can be required when
the watchdog cannot be disabled.

This patch introduces a deferral mechanism to remove this requirement.

Signed-off-by: Jean-Baptiste Theou <jtheou@adeneo-embedded.us>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-06-29 11:51:06 +02:00
Linus Torvalds e22619a29f Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
 "The main change in this kernel is Casey's generalized LSM stacking
  work, which removes the hard-coding of Capabilities and Yama stacking,
  allowing multiple arbitrary "small" LSMs to be stacked with a default
  monolithic module (e.g.  SELinux, Smack, AppArmor).

  See
        https://lwn.net/Articles/636056/

  This will allow smaller, simpler LSMs to be incorporated into the
  mainline kernel and arbitrarily stacked by users.  Also, this is a
  useful cleanup of the LSM code in its own right"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
  tpm, tpm_crb: fix le64_to_cpu conversions in crb_acpi_add()
  vTPM: set virtual device before passing to ibmvtpm_reset_crq
  tpm_ibmvtpm: remove unneccessary message level.
  ima: update builtin policies
  ima: extend "mask" policy matching support
  ima: add support for new "euid" policy condition
  ima: fix ima_show_template_data_ascii()
  Smack: freeing an error pointer in smk_write_revoke_subj()
  selinux: fix setting of security labels on NFS
  selinux: Remove unused permission definitions
  selinux: enable genfscon labeling for sysfs and pstore files
  selinux: enable per-file labeling for debugfs files.
  selinux: update netlink socket classes
  signals: don't abuse __flush_signals() in selinux_bprm_committed_creds()
  selinux: Print 'sclass' as string when unrecognized netlink message occurs
  Smack: allow multiple labels in onlycap
  Smack: fix seq operations in smackfs
  ima: pass iint to ima_add_violation()
  ima: wrap event related data to the new ima_event_data structure
  integrity: add validity checks for 'path' parameter
  ...
2015-06-27 13:26:03 -07:00
Linus Torvalds 78c10e556e Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:

 - Improvements to the tlb_dump code
 - KVM fixes
 - Add support for appended DTB
 - Minor improvements to the R12000 support
 - Minor improvements to the R12000 support
 - Various platform improvments for BCM47xx
 - The usual pile of minor cleanups
 - A number of BPF fixes and improvments
 - Some improvments to the support for R3000 and DECstations
 - Some improvments to the ATH79 platform support
 - A major patchset for the JZ4740 SOC adding support for the CI20 platform
 - Add support for the Pistachio SOC
 - Minor BMIPS/BCM63xx platform support improvments.
 - Avoid "SYNC 0" as memory barrier when unlocking spinlocks
 - Add support for the XWR-1750 board.
 - Paul's __cpuinit/__cpuinitdata cleanups.
 - New Malta CPU board support large memory so enable ZONE_DMA32.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
  MIPS: spinlock: Adjust arch_spin_lock back-off time
  MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
  MIPS: BCM47xx: Simplify handling SPROM revisions
  MIPS: Cobalt Don't use module_init in non-modular MTD registration.
  MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
  MIPS: use for_each_sg()
  MIPS: BCM47xx: Don't select BCMA_HOST_PCI
  MIPS: BCM47xx: Add helper variable for storing NVRAM length
  MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
  MIPS: Replace smp_mb with release barrier function in unlocks.
  MIPS: i8259: DT support
  MIPS: Malta: Basic DT plumbing
  MIPS: include errno.h for ENODEV in mips-cm.h
  MIPS: Define GCR_GIC_STATUS register fields
  MIPS: BPF: Introduce BPF ASM helpers
  MIPS: BPF: Use BPF register names to describe the ABI
  MIPS: BPF: Move register definition to the BPF header
  MIPS: net: BPF: Replace RSIZE with SZREG
  MIPS: BPF: Free up some callee-saved registers
  MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
  ...
2015-06-27 12:44:34 -07:00
Linus Torvalds d2c3ac7e7e Merge branch 'for-4.2' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
 "A relatively quiet cycle, with a mix of cleanup and smaller bugfixes"

* 'for-4.2' of git://linux-nfs.org/~bfields/linux: (24 commits)
  sunrpc: use sg_init_one() in krb5_rc4_setup_enc/seq_key()
  nfsd: wrap too long lines in nfsd4_encode_read
  nfsd: fput rd_file from XDR encode context
  nfsd: take struct file setup fully into nfs4_preprocess_stateid_op
  nfsd: refactor nfs4_preprocess_stateid_op
  nfsd: clean up raparams handling
  nfsd: use swap() in sort_pacl_range()
  rpcrdma: Merge svcrdma and xprtrdma modules into one
  svcrdma: Add a separate "max data segs macro for svcrdma
  svcrdma: Replace GFP_KERNEL in a loop with GFP_NOFAIL
  svcrdma: Keep rpcrdma_msg fields in network byte-order
  svcrdma: Fix byte-swapping in svc_rdma_sendto.c
  nfsd: Update callback sequnce id only CB_SEQUENCE success
  nfsd: Reset cb_status in nfsd4_cb_prepare() at retrying
  svcrdma: Remove svc_rdma_xdr_decode_deferred_req()
  SUNRPC: Move EXPORT_SYMBOL for svc_process
  uapi/nfs: Add NFSv4.1 ACL definitions
  nfsd: Remove dead declarations
  nfsd: work around a gcc-5.1 warning
  nfsd: Checking for acl support does not require fetching any acls
  ...
2015-06-27 10:14:39 -07:00
Linus Torvalds e0dd880a54 Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:
 "Most of the changes are around implementing and fixing fallouts from
  sysfs and internal interface to limit the CPUs available to all
  unbound workqueues to help isolating CPUs.  It needs more work as
  ordered workqueues can roam unrestricted but still is a significant
  improvement"

* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: fix typos in comments
  workqueue: move flush_scheduled_work() to workqueue.h
  workqueue: remove the lock from wq_sysfs_prep_attrs()
  workqueue: remove the declaration of copy_workqueue_attrs()
  workqueue: ensure attrs changes are properly synchronized
  workqueue: separate out and refactor the locking of applying attrs
  workqueue: simplify wq_update_unbound_numa()
  workqueue: wq_pool_mutex protects the attrs-installation
  workqueue: fix a typo
  workqueue: function name in the comment differs from the real function name
  workqueue: fix trivial typo in Documentation/workqueue.txt
  workqueue: Allow modifying low level unbound workqueue cpumask
  workqueue: Create low-level unbound workqueues cpumask
  workqueue: split apply_workqueue_attrs() into 3 stages
2015-06-26 20:12:21 -07:00
Linus Torvalds bbe179f88d Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:

 - threadgroup_lock got reorganized so that its users can pick the
   actual locking mechanism to use.  Its only user - cgroups - is
   updated to use a percpu_rwsem instead of per-process rwsem.

   This makes things a bit lighter on hot paths and allows cgroups to
   perform and fail multi-task (a process) migrations atomically.
   Multi-task migrations are used in several places including the
   unified hierarchy.

 - Delegation rule and documentation added to unified hierarchy.  This
   will likely be the last interface update from the cgroup core side
   for unified hierarchy before lifting the devel mask.

 - Some groundwork for the pids controller which is scheduled to be
   merged in the coming devel cycle.

* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: add delegation section to unified hierarchy documentation
  cgroup: require write perm on common ancestor when moving processes on the default hierarchy
  cgroup: separate out cgroup_procs_write_permission() from __cgroup_procs_write()
  kernfs: make kernfs_get_inode() public
  MAINTAINERS: add a cgroup core co-maintainer
  cgroup: fix uninitialised iterator in for_each_subsys_which
  cgroup: replace explicit ss_mask checking with for_each_subsys_which
  cgroup: use bitmask to filter for_each_subsys
  cgroup: add seq_file forward declaration for struct cftype
  cgroup: simplify threadgroup locking
  sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem
  sched, cgroup: reorganize threadgroup locking
  cgroup: switch to unsigned long for bitmasks
  cgroup: reorganize include/linux/cgroup.h
  cgroup: separate out include/linux/cgroup-defs.h
  cgroup: fix some comment typos
2015-06-26 19:50:04 -07:00
Linus Torvalds 2a298679b4 USB patches for 4.2-rc1
Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
 majority of changes are in the gadget drivers, with a bunch of other
 small driver changes.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
  majority of changes are in the gadget drivers, with a bunch of other
  small driver changes.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits)
  usb: dwc3: Use ASCII space in Kconfig
  usb: chipidea: add work-around for Marvell HSIC PHY startup
  usb: chipidea: allow multiple instances to use default ci_default_pdata
  dt-bindings: Consolidate ChipIdea USB ci13xxx bindings
  phy: add Marvell HSIC 28nm PHY
  phy: Add Marvell USB 2.0 OTG 28nm PHY
  dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings
  USB: ssb: use devm_kzalloc
  USB: ssb: fix error handling in ssb_hcd_create_pdev()
  usb: isp1760: check for null return from kzalloc
  cdc-acm: Add support of ATOL FPrint fiscal printers
  usb: chipidea: usbmisc_imx: Remove unneeded semicolon
  USB: usbtmc: add device quirk for Rigol DS6104
  USB: serial: mos7840: Use setup_timer
  phy: twl4030-usb: add ABI documentation
  phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.
  phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback.
  phy: twl4030-usb: make runtime pm more reliable.
  drivers:usb:fsl: Fix compilation error for fsl ehci drv
  usb: renesas_usbhs: Don't disable the pipe if Control write status stage
  ...
2015-06-26 15:59:26 -07:00
Linus Torvalds 8c7febe839 TTY/Serial driver patches for 4.2-rc1
Here's the tty and serial driver patches for 4.2-rc1.
 
 A number of individual driver updates, some code cleanups, and other
 minor things, full details in the shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here's the tty and serial driver patches for 4.2-rc1.

  A number of individual driver updates, some code cleanups, and other
  minor things, full details in the shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (152 commits)
  Doc: serial-rs485.txt: update RS485 driver interface
  Doc: tty.txt: remove mention of the BKL
  MAINTAINERS: tty: add serial docs directory
  serial: sprd: check for NULL after calling devm_clk_get
  serial: 8250_pci: Correct uartclk for xr17v35x expansion chips
  serial: 8250_pci: Add support for 12 port Exar boards
  serial: 8250_uniphier: add bindings document for UniPhier UART
  serial: core: cleanup in uart_get_baud_rate()
  serial: stm32-usart: Add STM32 USART Driver
  tty/serial: kill off set_irq_flags usage
  tty: move linux/gsmmux.h to uapi
  doc: dt: add documentation for nxp,lpc1850-uart
  serial: 8250: add LPC18xx/43xx UART driver
  serial: 8250_uniphier: add UniPhier serial driver
  serial: 8250_dw: support ACPI platforms with integrated DMA engine
  serial: of_serial: check the return value of clk_prepare_enable()
  serial: of_serial: use devm_clk_get() instead of clk_get()
  serial: earlycon: Add support for big-endian MMIO accesses
  serial: sirf: use hrtimer for data rx
  serial: sirf: correct the fifo empty_bit
  ...
2015-06-26 15:53:22 -07:00
Linus Torvalds 23908db413 Staging driver patches for 4.2-rc1
Here's the big, really big, staging tree patches for 4.2-rc1.
 
 Loads of stuff in here, almost all just coding style fixes / churn, and
 a few new drivers as well, one of which I just disabled from the build a
 few minutes ago due to way too many build warnings.
 
 Other than the one "disable this driver" patch, all of these have been
 in linux-next for quite a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the big, really big, staging tree patches for 4.2-rc1.

  Loads of stuff in here, almost all just coding style fixes / churn,
  and a few new drivers as well, one of which I just disabled from the
  build a few minutes ago due to way too many build warnings.

  Other than the one "disable this driver" patch, all of these have been
  in linux-next for quite a while with no reported issues"

* tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1163 commits)
  staging: wilc1000: disable driver due to build warnings
  Staging: rts5208: fix CHANGE_LINK_STATE value
  Staging: sm750fb: ddk750_swi2c.c: Insert spaces before parenthesis
  Staging: sm750fb: ddk750_swi2c.c: Place braces on correct lines
  Staging: sm750fb: ddk750_swi2c.c: Insert spaces around operators
  Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs
  Staging: sm750fb: ddk750_swi2c.h: Shorten lines to under 80 characters
  Staging: sm750fb: ddk750_swi2c.h: Replace spaces with tabs
  Staging: sm750fb: modedb.h: Shorten lines to under 80 characters
  Staging: sm750fb: modedb.h: Replace spaces with tabs
  staging: comedi: addi_apci_3120: rename 'this_board' variables
  staging: comedi: addi_apci_1516: rename 'this_board' variables
  staging: comedi: ni_atmio: cleanup ni_getboardtype()
  staging: comedi: vmk80xx: sanity check context used to get the boardinfo
  staging: comedi: vmk80xx: rename 'boardinfo' variables
  staging: comedi: dt3000: rename 'this_board' variables
  staging: comedi: adv_pci_dio: rename 'this_board' variables
  staging: comedi: cb_pcidas64: rename 'thisboard' variables
  staging: comedi: cb_pcidas: rename 'thisboard' variables
  staging: comedi: me4000: rename 'thisboard' variables
  ...
2015-06-26 15:46:08 -07:00
Linus Torvalds 8d7804a2f0 Driver core patches for 4.2-rc1
Here is the driver core / firmware changes for 4.2-rc1.
 
 A number of small changes all over the place in the driver core, and in
 the firmware subsystem.  Nothing really major, full details in the
 shortlog.  Some of it is a bit of churn, given that the platform driver
 probing changes was found to not work well, so they were reverted.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the driver core / firmware changes for 4.2-rc1.

  A number of small changes all over the place in the driver core, and
  in the firmware subsystem.  Nothing really major, full details in the
  shortlog.  Some of it is a bit of churn, given that the platform
  driver probing changes was found to not work well, so they were
  reverted.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits)
  Revert "base/platform: Only insert MEM and IO resources"
  Revert "base/platform: Continue on insert_resource() error"
  Revert "of/platform: Use platform_device interface"
  Revert "base/platform: Remove code duplication"
  firmware: add missing kfree for work on async call
  fs: sysfs: don't pass count == 0 to bin file readers
  base:dd - Fix for typo in comment to function driver_deferred_probe_trigger().
  base/platform: Remove code duplication
  of/platform: Use platform_device interface
  base/platform: Continue on insert_resource() error
  base/platform: Only insert MEM and IO resources
  firmware: use const for remaining firmware names
  firmware: fix possible use after free on name on asynchronous request
  firmware: check for file truncation on direct firmware loading
  firmware: fix __getname() missing failure check
  drivers: of/base: move of_init to driver_init
  drivers/base: cacheinfo: fix annoying typo when DT nodes are absent
  sysfs: disambiguate between "error code" and "failure" in comments
  driver-core: fix build for !CONFIG_MODULES
  driver-core: make __device_attach() static
  ...
2015-06-26 15:07:37 -07:00
Linus Torvalds d87823813f Char/Misc driver patches for 4.2-rc1
Here's the big char/misc driver pull request for 4.2-rc1.
 
 Lots of mei, extcon, coresight, uio, mic, and other driver updates in
 here.  Full details in the shortlog.  All of these have been in
 linux-next for some time with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver pull request for 4.2-rc1.

  Lots of mei, extcon, coresight, uio, mic, and other driver updates in
  here.  Full details in the shortlog.  All of these have been in
  linux-next for some time with no reported problems"

* tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits)
  mei: me: wait for power gating exit confirmation
  mei: reset flow control on the last client disconnection
  MAINTAINERS: mei: add mei_cl_bus.h to maintained file list
  misc: sram: sort and clean up included headers
  misc: sram: move reserved block logic out of probe function
  misc: sram: add private struct device and virt_base members
  misc: sram: report correct SRAM pool size
  misc: sram: bump error message level on unclean driver unbinding
  misc: sram: fix device node reference leak on error
  misc: sram: fix enabled clock leak on error path
  misc: mic: Fix reported static checker warning
  misc: mic: Fix randconfig build error by including errno.h
  uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
  uio: pruss: Add CONFIG_HAS_IOMEM dependence
  uio: pruss: Include <linux/sizes.h>
  extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
  char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
  Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
  parport: check exclusive access before register
  w1: use correct lock on error in w1_seq_show()
  ...
2015-06-26 14:51:15 -07:00
Linus Torvalds 099bfbfc7f Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "This is the main drm pull request for v4.2.

  I've one other new driver from freescale on my radar, it's been posted
  and reviewed, I'd just like to get someone to give it a last look, so
  maybe I'll send it or maybe I'll leave it.

  There is no major nouveau changes in here, Ben was working on
  something big, and we agreed it was a bit late, there wasn't anything
  else he considered urgent to merge.

  There might be another msm pull for some bits that are waiting on
  arm-soc, I'll see how we time it.

  This touches some "of" stuff, acks are in place except for the fixes
  to the build in various configs,t hat I just applied.

  Summary:

  New drivers:
      - virtio-gpu:
                KMS only pieces of driver for virtio-gpu in qemu.
                This is just the first part of this driver, enough to run
                unaccelerated userspace on. As qemu merges more we'll start
                adding the 3D features for the virgl 3d work.
      - amdgpu:
                a new driver from AMD to driver their newer GPUs. (VI+)
                It contains a new cleaner userspace API, and is a clean
                break from radeon moving forward, that AMD are going to
                concentrate on. It also contains a set of register headers
                auto generated from AMD internal database.

  core:
      - atomic modesetting API completed, enabled by default now.
      - Add support for mode_id blob to atomic ioctl to complete interface.
      - bunch of Displayport MST fixes
      - lots of misc fixes.

  panel:
      - new simple panels
      - fix some long-standing build issues with bridge drivers

  radeon:
      - VCE1 support
      - add a GPU reset counter for userspace
      - lots of fixes.

  amdkfd:
      - H/W debugger support module
      - static user-mode queues
      - support killing all the waves when a process terminates
      - use standard DECLARE_BITMAP

  i915:
      - Add Broxton support
      - S3, rotation support for Skylake
      - RPS booting tuning
      - CPT modeset sequence fixes
      - ns2501 dither support
      - enable cmd parser on haswell
      - cdclk handling fixes
      - gen8 dynamic pte allocation
      - lots of atomic conversion work

  exynos:
      - Add atomic modesetting support
      - Add iommu support
      - Consolidate drm driver initialization
      - and MIC, DECON and MIPI-DSI support for exynos5433

  omapdrm:
      - atomic modesetting support (fixes lots of things in rewrite)

  tegra:
      - DP aux transaction fixes
      - iommu support fix

  msm:
      - adreno a306 support
      - various dsi bits
      - various 64-bit fixes
      - NV12MT support

  rcar-du:
      - atomic and misc fixes

  sti:
      - fix HDMI timing complaince

  tilcdc:
      - use drm component API to access tda998x driver
      - fix module unloading

  qxl:
      - stability fixes"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (872 commits)
  drm/nouveau: Pause between setting gpu to D3hot and cutting the power
  drm/dp/mst: close deadlock in connector destruction.
  drm: Always enable atomic API
  drm/vgem: Set unique to "vgem"
  of: fix a build error to of_graph_get_endpoint_by_regs function
  drm/dp/mst: take lock around looking up the branch device on hpd irq
  drm/dp/mst: make sure mst_primary mstb is valid in work function
  of: add EXPORT_SYMBOL for of_graph_get_endpoint_by_regs
  ARM: dts: rename the clock of MIPI DSI 'pll_clk' to 'sclk_mipi'
  drm/atomic: Don't set crtc_state->enable manually
  drm/exynos: dsi: do not set TE GPIO direction by input
  drm/exynos: dsi: add support for MIC driver as a bridge
  drm/exynos: dsi: add support for Exynos5433
  drm/exynos: dsi: make use of array for clock access
  drm/exynos: dsi: make use of driver data for static values
  drm/exynos: dsi: add macros for register access
  drm/exynos: dsi: rename pll_clk to sclk_clk
  drm/exynos: mic: add MIC driver
  of: add helper for getting endpoint node of specific identifiers
  drm/exynos: add Exynos5433 decon driver
  ...
2015-06-26 13:18:51 -07:00
Linus Torvalds e8a0b37d28 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
 "Bigger items included in this update are:

   - A series of updates from Arnd for ARM randconfig build failures
   - Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to
     drivers/irqchip/
   - Move ARMs SP804 timer to drivers/clocksource/
   - Perf updates from Mark Rutland in preparation to move the ARM perf
     code into drivers/ so it can be shared with ARM64.
   - MCPM updates from Nicolas
   - Add support for taking platform serial number from DT
   - Re-implement Keystone2 physical address space switch to conform to
     architecture requirements
   - Clean up ARMv7 LPAE code, which goes in hand with the Keystone2
     changes.
   - L2C cleanups to avoid unlocking caches if we're prevented by the
     secure support to unlock.
   - Avoid cleaning a potentially dirty cache containing stale data on
     CPU initialisation
   - Add ARM-only entry point for secondary startup (for machines that
     can only call into a Thumb kernel in ARM mode).  Same thing is also
     done for the resume entry point.
   - Provide arch_irqs_disabled via asm-generic
   - Enlarge ARMv7M vector table
   - Always use BFD linker for VDSO, as gold doesn't accept some of the
     options we need.
   - Fix an incorrect BSYM (for Thumb symbols) usage, and convert all
     BSYM compiler macros to a "badr" (for branch address).
   - Shut up compiler warnings provoked by our cmpxchg() implementation.
   - Ensure bad xchg sizes fail to link"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits)
  ARM: Fix build if CLKDEV_LOOKUP is not configured
  ARM: fix new BSYM() usage introduced via for-arm-soc branch
  ARM: 8383/1: nommu: avoid deprecated source register on mov
  ARM: 8391/1: l2c: add options to overwrite prefetching behavior
  ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic
  ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap
  ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
  ARM: 8384/1: VDSO: force use of BFD linker
  ARM: 8385/1: VDSO: group link options
  ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations
  ARM: remove __bad_xchg definition
  ARM: 8369/1: ARMv7M: define size of vector table for Vybrid
  ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK
  ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource
  ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion
  ARM: 8364/1: fix BE32 module loading
  ARM: 8360/1: add secondary_startup_arm prototype in header file
  ARM: 8359/1: correct secondary_startup_arm mode
  ARM: proc-v7: sanitise and document registers around errata
  ARM: proc-v7: clean up MIDR access
  ...
2015-06-26 12:20:00 -07:00
Linus Torvalds f5dcb68086 ARM: SoC: driver updates for v4.2
Some of these are for drivers/soc, where we're now putting
 SoC-specific drivers these days. Some are for other driver subsystems
 where we have received acks from the appropriate maintainers.
 
 Some highlights:
 
 - simple-mfd: document DT bindings and misc updates
 - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
 - memory: support for Tegra132 SoC
 - memory: introduce tegra EMC driver for scaling memory frequency
 - misc. updates for ARM CCI and CCN busses
 
  Conflicts:
 	arch/arm64/boot/dts/arm/juno-motherboard.dtsi
 
  Trivial add/add conflict with our dt branch.
  Resolution: take both sides.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Kevin Hilman:
 "Some of these are for drivers/soc, where we're now putting
  SoC-specific drivers these days.  Some are for other driver subsystems
  where we have received acks from the appropriate maintainers.

  Some highlights:

   - simple-mfd: document DT bindings and misc updates
   - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
   - memory: support for Tegra132 SoC
   - memory: introduce tegra EMC driver for scaling memory frequency
   - misc. updates for ARM CCI and CCN busses"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  drivers: soc: sunxi: Introduce SoC driver to map SRAMs
  arm-cci: Add aliases for PMU events
  arm-cci: Add CCI-500 PMU support
  arm-cci: Sanitise CCI400 PMU driver specific code
  arm-cci: Abstract handling for CCI events
  arm-cci: Abstract out the PMU counter details
  arm-cci: Cleanup PMU driver code
  arm-cci: Do not enable CCI-400 PMU by default
  firmware: qcom: scm: Add HDCP Support
  ARM: berlin: add an ADC node for the BG2Q
  ARM: berlin: remove useless chip and system ctrl compatibles
  clk: berlin: drop direct of_iomap of nodes reg property
  ARM: berlin: move BG2Q clock node
  ARM: berlin: move BG2CD clock node
  ARM: berlin: move BG2 clock node
  clk: berlin: prepare simple-mfd conversion
  pinctrl: berlin: drop SoC stub provided regmap
  ARM: berlin: move pinctrl to simple-mfd nodes
  pinctrl: berlin: prepare to use regmap provided by syscon
  reset: berlin: drop arch_initcall initialization
  ...
2015-06-26 11:54:29 -07:00
Linus Torvalds 3d9f96d850 ARM: SoC: DT updates for v4.2
As usual, quite a few device-tree updates in ARM land.  There was ome
 minor churn in DTs due to relicensing under a dual-license, and lots
 of little additions of new peripherals, features etc, but nothing
 really exciting to call to your attention.  Some higlights, focsuing
 on support for new SoCs and boards:
 
 - AT91: new boards: Overkiz,  Acme Systems' Arietta G25
 - tegra: HDA support
 - bcm: new platforms: Buffalo WXR-1900DHP, SmartRG SR400ac, ASUS RT-AC87U
 - mvebu: new platforms: Compulab CM-A510, Armada 385-based Linksys
   boards, DLink DNS-327L
 - OMAP: new platforms: Baltos IR5221, LogicPD Torpedo, Toby-Churchill SL50
 - ARM: added support for Juno r1 board
 - sunxi: A33 SoC support; new boards: A23 EVB, SinA33, GA10H-A33, Mele A1000G
 - imx: i.MX7D SoC support; new boards: Armadeus Systems APF6,
   Gateworks GW5510, and aristainetos2 boards
 - hisilicon: hi6220 SoC support; new boards: 96boards hikey
 
 Conflicts: None
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC DT updates from Kevin Hilman:
 "As usual, quite a few device-tree updates in ARM land.  There was one
  minor churn in DTs due to relicensing under a dual-license, and lots
  of little additions of new peripherals, features etc, but nothing
  really exciting to call to your attention.  Some higlights, focsuing
  on support for new SoCs and boards:

   - AT91: new boards: Overkiz,  Acme Systems' Arietta G25
   - tegra: HDA support
   - bcm: new platforms: Buffalo WXR-1900DHP, SmartRG SR400ac, ASUS
     RT-AC87U
   - mvebu: new platforms: Compulab CM-A510, Armada 385-based Linksys
     boards, DLink DNS-327L
   - OMAP: new platforms: Baltos IR5221, LogicPD Torpedo, Toby-Churchill
     SL50
   - ARM: added support for Juno r1 board
   - sunxi: A33 SoC support; new boards: A23 EVB, SinA33, GA10H-A33,
     Mele A1000G
   - imx: i.MX7D SoC support; new boards: Armadeus Systems APF6,
     Gateworks GW5510, and aristainetos2 boards
   - hisilicon: hi6220 SoC support; new boards: 96boards hikey"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (462 commits)
  ARM: hisi: revert changes from hisi/hip04-dt branch
  ARM: nomadik: set proper compatible for accelerometer
  ARM64: juno: add GPIO keys
  ARM: at91/dt: sama5d4: fix dma conf for aes, sha and tdes nodes
  ARM: dts: Introduce STM32F429 MCU
  ARM: socfpga: dts: enable ethernet for Arria10 devkit
  ARM: dts: k2l: fix the netcp range size
  ARM: dts: k2e: fix the netcp range size
  ARM: dts: k2hk: fix the netcp range size
  ARM: dts: k2l-evm: Add device bindings for netcp driver
  ARM: dts: k2e-evm: Add device bindings for netcp driver
  ARM: dts: k2hk-evm: Add device bindings for netcp driver
  ARM: BCM5301X: Add DT for Asus RT-AC87U
  ARM: BCM5301X: add IRQ numbers for PCIe controller
  ARM: BCM5301X: add NAND flash chip description
  arm64: dts: Add dts files for Hisilicon Hi6220 SoC
  clk: hi6220: Document devicetree bindings for hi6220 clock
  arm64: hi6220: Document devicetree bindings for Hisilicon hi6220 SoC
  ARM: at91/dt: sama5d4ek: mci0 uses slot 0
  ARM: at91/dt: kizbox: fix mismatch LED PWM device
  ...
2015-06-26 11:43:59 -07:00
Linus Torvalds 4aa705b18b ARM: SoC: platform support for v4.2
Our SoC branch usually contains expanded support for new SoCs and
 other core platform code. Some highlights from this round:
 
 - sunxi: SMP support for A23 SoC
 - socpga: big-endian support
 - pxa: conversion to common clock framework
 - bcm: SMP support for BCM63138
 - imx: support new I.MX7D SoC
 - zte: basic support for ZX296702 SoC
 
  Conflicts:
 	arch/arm/mach-socfpga/core.h
 
 Trivial remove/remove conflict with our cleanup branch.
 Resolution: remove both sides
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform support updates from Kevin Hilman:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  Some highlights from this round:

   - sunxi: SMP support for A23 SoC
   - socpga: big-endian support
   - pxa: conversion to common clock framework
   - bcm: SMP support for BCM63138
   - imx: support new I.MX7D SoC
   - zte: basic support for ZX296702 SoC"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
  ARM: zx: Add basic defconfig support for ZX296702
  ARM: dts: zx: add an initial zx296702 dts and doc
  clk: zx: add clock support to zx296702
  dt-bindings: Add #defines for ZTE ZX296702 clocks
  ARM: socfpga: fix build error due to secondary_startup
  MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
  ARM: ep93xx: simone: support for SPI-based MMC/SD cards
  MAINTAINERS: update Shawn's email to use kernel.org one
  ARM: socfpga: support suspend to ram
  ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
  ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
  ARM: EXYNOS: register power domain driver from core_initcall
  ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
  ARM: SAMSUNG: Constify platform_device_id
  ARM: EXYNOS: Constify irq_domain_ops
  ARM: EXYNOS: add coupled cpuidle support for Exynos3250
  ARM: EXYNOS: add exynos_get_boot_addr() helper
  ARM: EXYNOS: add exynos_set_boot_addr() helper
  ARM: EXYNOS: make exynos_core_restart() less verbose
  ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
  ...
2015-06-26 11:34:35 -07:00
Linus Torvalds c11d716218 ARM: SoC cleanups for v4.2
A relatively small setup of cleanups this time around, and similar to last time
 the bulk of it is removal of legacy board support:
 
 - OMAP: removal of legacy (non-DT) booting for several platforms
 - i.MX: remove some legacy board files
 
 Conflicts: None
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Kevin Hilman:
 "A relatively small setup of cleanups this time around, and similar to
  last time the bulk of it is removal of legacy board support:

   - OMAP: removal of legacy (non-DT) booting for several platforms

   - i.MX: remove some legacy board files"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
  ARM: fix EFM32 build breakage caused by cpu_resume_arm
  ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state
  ARM: v7 setup function should invalidate L1 cache
  mach-omap2: Remove use of deprecated marco, PTR_RET in devices.c
  ARM: OMAP2+: Remove calls to deprecacted marco,PTR_RET in the files,fb.c and pmu.c
  ARM: OMAP2+: Constify irq_domain_ops
  ARM: OMAP2+: use symbolic defines for console loglevels instead of numbers
  ARM: at91: remove useless Makefile.boot
  ARM: at91: remove at91rm9200_sdramc.h
  ARM: at91: remove mach/at91_ramc.h and mach/at91rm9200_mc.h
  ARM: at91/pm: use the atmel-mc syscon defines
  pcmcia: at91_cf: Use syscon to configure the MC/smc
  ARM: at91: declare the at91rm9200 memory controller as a syscon
  mfd: syscon: Add Atmel MC (Memory Controller) registers definition
  ARM: at91: drop sam9_smc.c
  ata: at91: use syscon to configure the smc
  ARM: ux500: delete static resource defines
  ARM: ux500: rename ux500_map_io
  ARM: ux500: look up PRCMU resource from DT
  ARM: ux500: kill off L2CC static map
  ...
2015-06-26 11:08:27 -07:00
Linus Torvalds 47a469421d Merge branch 'akpm' (patches from Andrew)
Merge second patchbomb from Andrew Morton:

 - most of the rest of MM

 - lots of misc things

 - procfs updates

 - printk feature work

 - updates to get_maintainer, MAINTAINERS, checkpatch

 - lib/ updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits)
  exit,stats: /* obey this comment */
  coredump: add __printf attribute to cn_*printf functions
  coredump: use from_kuid/kgid when formatting corename
  fs/reiserfs: remove unneeded cast
  NILFS2: support NFSv2 export
  fs/befs/btree.c: remove unneeded initializations
  fs/minix: remove unneeded cast
  init/do_mounts.c: add create_dev() failure log
  kasan: remove duplicate definition of the macro KASAN_FREE_PAGE
  fs/efs: femove unneeded cast
  checkpatch: emit "NOTE: <types>" message only once after multiple files
  checkpatch: emit an error when there's a diff in a changelog
  checkpatch: validate MODULE_LICENSE content
  checkpatch: add multi-line handling for PREFER_ETHER_ADDR_COPY
  checkpatch: suggest using eth_zero_addr() and eth_broadcast_addr()
  checkpatch: fix processing of MEMSET issues
  checkpatch: suggest using ether_addr_equal*()
  checkpatch: avoid NOT_UNIFIED_DIFF errors on cover-letter.patch files
  checkpatch: remove local from codespell path
  checkpatch: add --showfile to allow input via pipe to show filenames
  ...
2015-06-26 09:52:05 -07:00
Dan Williams bc30196f71 libnvdimm: Non-Volatile Devices
Maintainer information and documentation for drivers/nvdimm

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jens Axboe <axboe@fb.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Neil Brown <neilb@suse.de>
Cc: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-06-26 11:23:38 -04:00
Vishal Verma 5212e11fde nd_btt: atomic sector updates
BTT stands for Block Translation Table, and is a way to provide power
fail sector atomicity semantics for block devices that have the ability
to perform byte granularity IO. It relies on the capability of libnvdimm
namespace devices to do byte aligned IO.

The BTT works as a stacked blocked device, and reserves a chunk of space
from the backing device for its accounting metadata. It is a bio-based
driver because all IO is done synchronously, and there is no queuing or
asynchronous completions at either the device or the driver level.

The BTT uses 'lanes' to index into various 'on-disk' data structures,
and lanes also act as a synchronization mechanism in case there are more
CPUs than available lanes. We did a comparison between two lane lock
strategies - first where we kept an atomic counter around that tracked
which was the last lane that was used, and 'our' lane was determined by
atomically incrementing that. That way, for the nr_cpus > nr_lanes case,
theoretically, no CPU would be blocked waiting for a lane. The other
strategy was to use the cpu number we're scheduled on to and hash it to
a lane number. Theoretically, this could block an IO that could've
otherwise run using a different, free lane. But some fio workloads
showed that the direct cpu -> lane hash performed faster than tracking
'last lane' - my reasoning is the cache thrash caused by moving the
atomic variable made that approach slower than simply waiting out the
in-progress IO. This supports the conclusion that the driver can be a
very simple bio-based one that does synchronous IOs instead of queuing.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jens Axboe <axboe@fb.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Neil Brown <neilb@suse.de>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
[jmoyer: fix nmi watchdog timeout in btt_map_init]
[jmoyer: move btt initialization to module load path]
[jmoyer: fix memory leak in the btt initialization path]
[jmoyer: Don't overwrite corrupted arenas]
Signed-off-by: Vishal Verma <vishal.l.verma@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-06-26 11:23:38 -04:00
Linus Torvalds c13c810063 RTC for 4.2
Core:
  - Coding style and whitespace fixes (interface, Makefile and Kconfig)
  - New rtc_tm_sub() helper
  - New CONFIG_RTC_SYSTOHC_DEVICE option
  - Removed rtc_set_mmss()
 
 New drivers:
  - Mediatek MT6397
  - Cortina Gemini
 
 Drivers:
  - Year 2106 fixes for isl1208, pcf8563 and sunxi
  - update author email for at32ap700x and efi
  - ds1307: alarm fix
  - efi: use correct EFI 'epoch'
  - hym8563: make irq optional
  - imxdi: cleanups and better handling of the security/tamper monitoring
  - snvs: fix wakealarm
  - Compilation fixes or warning removal for gemini, mt6397, palmas, pfc8563
  - Trivial cleanups for ab8500, ds1216, ds1286, ds1672, ep93xx,
 hid-sensor-time, max6900, max8998, max77686, max77802, mc13xxx, mv, mxc, s3c,
 spear, v3020
  - Kconfig fixes for stmp3xxx and xgene
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Merge tag 'rtc-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Core:
   - Coding style and whitespace fixes (interface, Makefile and Kconfig)
   - New rtc_tm_sub() helper
   - New CONFIG_RTC_SYSTOHC_DEVICE option
   - Removed rtc_set_mmss()

  New drivers:
   - Mediatek MT6397
   - Cortina Gemini

  Drivers:
   - Year 2106 fixes for isl1208, pcf8563 and sunxi
   - update author email for at32ap700x and efi
   - ds1307: alarm fix
   - efi: use correct EFI 'epoch'
   - hym8563: make irq optional
   - imxdi: cleanups and better handling of the security/tamper monitoring
   - snvs: fix wakealarm
   - Compilation fixes or warning removal for gemini, mt6397, palmas, pfc8563
   - Trivial cleanups for ab8500, ds1216, ds1286, ds1672, ep93xx,
     hid-sensor-time, max6900, max8998, max77686, max77802, mc13xxx, mv,
     mxc, s3c, spear, v3020
   - Kconfig fixes for stmp3xxx and xgene"

* tag 'rtc-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (48 commits)
  rtc: remove useless I2C dependencies
  rtc: whitespace fixes
  rtc: Properly sort Makefile
  MAINTAINERS: Add RTC subsystem repository
  rtc: pfc8563: fix uninitialized variable warning
  rtc: ds1307: Enable the mcp794xx alarm after programming time
  rtc: hym8563: make the irq optional
  rtc: gemini: fix cocci warnings
  rtc: mv: correct 24 hour error message
  rtc: mv: use BIT()
  rtc: efi: use correct EFI 'epoch'
  rtc: interface: Remove rtc_set_mmss()
  sparc: time: Replace update_persistent_clock() with CONFIG_RTC_SYSTOHC
  rtc: NTP: Add CONFIG_RTC_SYSTOHC_DEVICE for NTP synchronization
  rtc: sunxi: Replace deprecated rtc_tm_to_time()
  rtc: isl1208: Replace deprecated rtc_tm_to_time()
  rtc: Introduce rtc_tm_sub() helper function
  rtc: pcf8563: Replace deprecated rtc_time_to_tm() and rtc_tm_to_time()
  rtc: palmas: Initialise bb_charging flag before using it
  rtc: simplify use of devm_ioremap_resource
  ...
2015-06-25 18:55:33 -07:00
Linus Torvalds 24867481b8 Merge branch 'i2c/for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "Highlights:

   - new drivers for Mediatek I2C, APM X-Gene, Broadcom Settop
   - major updates to at91, davinci
   - bugfixes to the mux infrastructure when dealing with the new quirk
     mechanism
   - more users for the bus recovery feature
   - further improvements to the slave framework

  Plus the usual bunch of smaller driver and core improvements and
  fixes.

  There is one patch removing old code from an ARM platform.  This has
  been acked by the sh_mobile maintainer Simon Horman"

* 'i2c/for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (48 commits)
  i2c: busses: i2c-bcm2835: limits cdiv to allowed values
  i2c: sh_mobile: use proper type for timeout
  i2c: sh_mobile: use adapter default for timeout
  i2c: rcar: use proper type for timeout
  i2c: rcar: use adapter default for timeout
  i2c: designware: Make sure the device is suspended before disabling runtime PM
  i2c: tegra: apply size limit quirk
  i2c: tegra: don't advertise SMBUS_QUICK
  i2c: octeon: remove unused signal handling
  i2c: davinci: Optimize SCL generation
  i2c: mux: pca954x: Use __i2c_transfer because of quirks
  i2c: mux: Use __i2c_transfer() instead of calling parent's master_xfer()
  i2c: use parent adapter quirks in mux
  i2c: bcm2835: clear reserved bits in S-Register
  ARM: shmobile: r8a7740: remove I2C errata handling
  i2c: sh_mobile: add errata workaround
  i2c: at91: fix code checker warnings
  i2c: busses: xgene-slimpro: fix incorrect __init declation for probe
  i2c: davinci: Avoid sending to own address
  i2c: davinci: Refactor i2c_davinci_wait_bus_not_busy()
  ...
2015-06-25 18:42:39 -07:00
Linus Torvalds 9390bd0d14 Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar.

* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox/bcm2835: Fix mailbox full detection.
  dt: mailbox: Remove 'mbox-names property is discouraged' message from binding
  mailbox: Add ability for clients to request channels by name
  mailbox: Enable BCM2835 mailbox support
  dt/bindings: Add binding for the BCM2835 mailbox driver
  mailbox: Fix up error handling in mbox_request_channel()
  mailbox: Make mbox_chan_ops const
  mailbox: altera: Add dependency on HAS_IOMEM
2015-06-25 18:38:40 -07:00
Linus Torvalds 5b4ca44477 media updates for v4.2-rc1
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Merge tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Lots of improvements at the DVB API DocBook documentation.  Now, the
   frontend and the network APIs are fully in sync with the Kernel and
   looks more like the rest of the media documentation;

 - New frontend driver: cx24120

 - New driver for a PCI device: cobalt.  This driver is actually not
   sold in the market, but it is a good example of a multi-HDMI input
   device;

 - The dt3155 driver were promoted from staging;

 - The mantis driver got remote controller support;

 - New V4L2 driver for ST bdisp SoC chipsets;

 - Make sparse and smatch happier: several bugs were solved by fixing
   the issues reported by those static code analyzers.

 - Lots of new device additions, new features, improvements and cleanups
   at the existing drivers.

* tag 'media/v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (553 commits)
  [media] lmedm04: fix the range for relative measurements
  [media] lmedm04: use u32 instead of u64 for relative stats
  [media] omap3isp: remove unused var
  [media] saa7134: fix page size on some archs
  [media] use CONFIG_PM_SLEEP for suspend/resume
  [media] tuner-i2c: be consistent with I2C declaration
  [media] si470x: cleanup define namespace
  [media] bdisp: prevent compiling on random arch
  [media] vb2: Don't WARN when v4l2_buffer.bytesused is 0 for multiplanar buffers
  [media] MAINTAINERS: Add entry for the Renesas VSP1 driver
  [media] videodev2.h: fix copy-and-paste error in V4L2_MAP_XFER_FUNC_DEFAULT
  [media] Revert "[media] vb2: Push mmap_sem down to memops"
  [media] mantis: cleanup a warning
  [media] bdisp-debug: don't try to divide by s64
  [media] cx88: don't declare restart_video_queue if not used
  [media] au0828: move dev->boards atribuition to happen earlier
  [media] lmedm04: implement dvb v5 statistics
  [media] bdisp: remove unused var
  [media] bdisp: remove needless check
  ts2020: fix compilation on i386
  ...
2015-06-25 17:55:48 -07:00
Linus Torvalds 0db9723cac Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:
 "Specifics:

   - enhance Thermal Framework with several new capabilities:

       * use power estimates
       * compute weights with relative integers instead of percentages
       * allow governors to have private data in thermal zones
       * export thermal zone parameters through sysfs

     Thanks to the ARM thermal team (Javi, Punit, KP).

   - introduce a new thermal governor: power allocator.  First in kernel
     closed loop PI(D) controller for thermal control.  Thanks to ARM
     thermal team.

   - enhance OF thermal to allow thermal zones to have sustainable power
     HW specification.  Thanks to Punit.

   - introduce thermal driver for Intel Quark SoC x1000platform.  Thanks
     to Ong, Boon Leong.

   - introduce QPNP PMIC temperature alarm driver.  Thanks to Ivan T. I.

   - introduce thermal driver for Hisilicon hi6220.  Thanks to
     kongxinwei.

   - enhance Exynos thermal driver to handle Exynos5433 TMU.  Thanks to
     Chanwoo C.

   - TI thermal driver now has a better implementation for EOCZ bit.
     From Pavel M.

   - add id for Skylake processors in int340x processor thermal driver.

   - a couple of small fixes and cleanups."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (36 commits)
  thermal: hisilicon: add new hisilicon thermal sensor driver
  dt-bindings: Document the hi6220 thermal sensor bindings
  thermal: of-thermal: add support for reading coefficients property
  thermal: support slope and offset coefficients
  thermal: power_allocator: round the division when divvying up power
  thermal: exynos: Add the support for Exynos5433 TMU
  thermal: cpu_cooling: Fix power calculation when CPUs are offline
  thermal: cpu_cooling: Remove cpu_dev update on policy CPU update
  thermal: export thermal_zone_parameters to sysfs
  thermal: cpu_cooling: Check memory allocation of power_table
  ti-soc-thermal: request temperature periodically if hw can't do that itself
  ti-soc-thermal: implement eocz bit to make driver useful on omap3
  cleanup ti-soc-thermal
  thermal: remove stale THERMAL_POWER_ACTOR select
  thermal: Default OF created trip points to writable
  thermal: core: Add Kconfig option to enable writable trips
  thermal: x86_pkg_temp: drop const for thermal_zone_parameters
  of: thermal: Introduce sustainable power for a thermal zone
  thermal: add trace events to the power allocator governor
  thermal: introduce the Power Allocator governor
  ...
2015-06-25 17:51:55 -07:00
Linus Torvalds 4570a37169 sound updates for 4.2-rc1
It was a busy development cycle at this time, as you can see a wide
 range of changes in diffstat.  There are no big changes but many
 refactoring and improvements.  Here we go some highlights:
 
 * ALSA core:
 - Procfs codes were cleaned up to use seq_file
 - Procfs can be opt out via Kconfig (only for EXPERT)
 - Two types of jack API were unified finally; now both kctl and input
   jack devs are handled via a single function call.
 
 * HD-audio
 - Continued code restructuring for the future ASoC driver; now HDA
   controller driver is split to a core helper module.
 - Preliminary codes for Skylake audio support in HDA core.
 - Proper i915 gfx power well management for SKL & co
 - Enabled runtime PM as default for Intel HDMI/DP codecs
 - Newer Tegra chip supports
 - More quirks for Dell headsets, Alienware (with CA0132), etc.
 - A couple of DRM ELD helper API functions
 
 * ASoC
 - Support for loading ASoC topology maps from firmware, intended to be
   used to allow self-describing DSP firmware images to be built which
   can map controls added by the DSP to userspace without the kernel
   needing to know about individual DSP firmwares
 - Lots of refactoring to avoid direct access to snd_soc_codec where
   it's not needed supporting future refactoring
 - Big refactoring, cleanup and enhancement for the Wolfson ADSP driver
 - Cleanup series for TI TAS2552 and R-CAR drivers
 - Fixes and improvements on RT56xx codecs
 - Support for TI TAS571x power amplifiers
 - Support for Qualcomm APQ8016 and ZTE ZX296702 SoCs
 - Support for x86 systems with RT5650 and Qualcomm Storm
 - Support for Mediatek AFE (Audio Front End) unit
 - Other various small fixes to ASoC codec drivers
 
 * Firewire
 - Enhanced to allow non-blocking streams to use timestamp
   synchronization
 - Improve support for DM1500 and BeBoBv3
 
 * Misc
 - Cleanup of old pci API functions over all PCI sound drivers
 - Fix long-standing regression of the old powermac i2c setup
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Merge tag 'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "It was a busy development cycle at this time, as you can see a wide
  range of changes in diffstat.  There are no big changes but many
  refactoring and improvements.  Here we go some highlights:

  ALSA core:
   - Procfs codes were cleaned up to use seq_file
   - Procfs can be opt out via Kconfig (only for EXPERT)
   - Two types of jack API were unified finally; now both kctl and input
     jack devs are handled via a single function call.

  HD-audio:
   - Continued code restructuring for the future ASoC driver; now HDA
     controller driver is split to a core helper module.
   - Preliminary codes for Skylake audio support in HDA core.
   - Proper i915 gfx power well management for SKL & co
   - Enabled runtime PM as default for Intel HDMI/DP codecs
   - Newer Tegra chip supports
   - More quirks for Dell headsets, Alienware (with CA0132), etc.
   - A couple of DRM ELD helper API functions

  ASoC:
   - Support for loading ASoC topology maps from firmware, intended to
     be used to allow self-describing DSP firmware images to be built
     which can map controls added by the DSP to userspace without the
     kernel needing to know about individual DSP firmwares
   - Lots of refactoring to avoid direct access to snd_soc_codec where
     it's not needed supporting future refactoring
   - Big refactoring, cleanup and enhancement for the Wolfson ADSP
     driver
   - Cleanup series for TI TAS2552 and R-CAR drivers
   - Fixes and improvements on RT56xx codecs
   - Support for TI TAS571x power amplifiers
   - Support for Qualcomm APQ8016 and ZTE ZX296702 SoCs
   - Support for x86 systems with RT5650 and Qualcomm Storm
   - Support for Mediatek AFE (Audio Front End) unit
   - Other various small fixes to ASoC codec drivers

  Firewire:
   - Enhanced to allow non-blocking streams to use timestamp
     synchronization
   - Improve support for DM1500 and BeBoBv3

  Misc:
   - Cleanup of old pci API functions over all PCI sound drivers
   - Fix long-standing regression of the old powermac i2c setup"

* tag 'sound-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (533 commits)
  ALSA: pcm: Fix pcm_class sysfs output
  ALSA: hda-beep: Update authors dead email address
  ASoC: wm_adsp: Move DSP Rate controls into the codec
  ASoC: wm8995: Fix setting sysclk for WM8995_SYSCLK_MCLK2 case
  ALSA: hda: provide default bus io ops extended hdac
  ALSA: hda: add hda link cleanup routine
  ALSA: hda: add hdac_ext stream creation and cleanup routines
  ASoC: rsrc-card: remove unused ret
  ALSA: HDAC: move SND_HDA_PREALLOC_SIZE to core
  ASoC: mediatek: Add machine driver for rt5650 rt5676 codec
  ASoC: mediatek: Add machine driver for MAX98090 codec
  ASoC: mediatek: Add AFE platform driver
  ASoC: rsnd: remove io from rsnd_mod
  ASoC: rsnd: move rsnd_mod_is_working() to rsnd_io_is_working()
  ASoC: rsnd: don't use rsnd_mod_to_io() on snd_kcontrol
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_src_xxx()
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_ssi_xxx()
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_dma_xxx()
  ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_get_adinr()
  ASoC: rsnd: add common interrupt handler for SSI/SRC/DMA
  ...
2015-06-25 17:15:18 -07:00
Linus Torvalds f7b08217c7 Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull DMI updates from Jean Delvare:
 "The most important change is the new sysfs interface to the DMI table,
  which will let user-space tools (such as dmidecode) access the table
  without relying on /dev/mem"

* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  firmware: dmi: struct dmi_header should be packed
  firmware: dmi_scan: Coding style cleanups
  Documentation: ABI: sysfs-firmware-dmi: add -entries suffix to file name
  firmware: dmi_scan: add SBMIOS entry and DMI tables
  firmware: dmi_scan: Trim DMI table length before exporting it
  firmware: dmi_scan: Rename dmi_table to dmi_decode_table
  firmware: dmi: List my quilt tree
  firmware: dmi_scan: Only honor end-of-table for 64-bit tables
2015-06-25 17:14:01 -07:00
Nicolas Iooss 5202efe544 coredump: use from_kuid/kgid when formatting corename
When adding __printf attribute to cn_printf, gcc reports some issues:

  fs/coredump.c:213:5: warning: format '%d' expects argument of type
  'int', but argument 3 has type 'kuid_t' [-Wformat=]
       err = cn_printf(cn, "%d", cred->uid);
       ^
  fs/coredump.c:217:5: warning: format '%d' expects argument of type
  'int', but argument 3 has type 'kgid_t' [-Wformat=]
       err = cn_printf(cn, "%d", cred->gid);
       ^

These warnings come from the fact that the value of uid/gid needs to be
extracted from the kuid_t/kgid_t structure before being used as an
integer.  More precisely, cred->uid and cred->gid need to be converted to
either user-namespace uid/gid or to init_user_ns uid/gid.

Use init_user_ns in order not to break existing ABI, and document this in
Documentation/sysctl/kernel.txt.

While at it, format uid and gid values with %u instead of %d because
uid_t/__kernel_uid32_t and gid_t/__kernel_gid32_t are unsigned int.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:43 -07:00
Tejun Heo e2f15f9a79 netconsole: implement extended console support
printk logbuf keeps various metadata and optional key=value dictionary for
structured messages, both of which are stripped when messages are handed
to regular console drivers.

It can be useful to have this metadata and dictionary available to
netconsole consumers.  This obviously makes logging via netconsole more
complete and the sequence number in particular is useful in environments
where messages may be lost or reordered in transit - e.g.  when netconsole
is used to collect messages in a large cluster where packets may have to
travel congested hops to reach the aggregator.  The lost and reordered
messages can easily be identified and handled accordingly using the
sequence numbers.

printk recently added extended console support which can be selected by
setting CON_EXTENDED flag.  From console driver side, not much changes.
The only difference is that the text passed to the write callback is
formatted the same way as /dev/kmsg.

This patch implements extended console support for netconsole which can be
enabled by either prepending "+" to a netconsole boot param entry or
echoing 1 to "extended" file in configfs.  When enabled, netconsole
transmits extended log messages with headers identical to /dev/kmsg
output.

There's one complication due to message fragments.  netconsole limits the
maximum message size to 1k and messages longer than that are split into
multiple fragments.  As all extended console messages should carry
matching headers and be uniquely identifiable, each extended message
fragment carries full copy of the metadata and an extra header field to
identify the specific fragment.  The optional header is of the form
"ncfrag=OFF/LEN" where OFF is the byte offset into the message body and
LEN is the total length.

To avoid unnecessarily making printk format extended messages, Extended
netconsole is registered with printk when the first extended netconsole is
configured.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: David Miller <davem@davemloft.net>
Cc: Kay Sievers <kay@vrfy.org>
Cc: Petr Mladek <pmladek@suse.cz>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:39 -07:00
Tejun Heo 6fe29354be printk: implement support for extended console drivers
printk log_buf keeps various metadata for each message including its
sequence number and timestamp.  The metadata is currently available only
through /dev/kmsg and stripped out before passed onto console drivers.  We
want this metadata to be available to console drivers too so that console
consumers can get full information including the metadata and dictionary,
which among other things can be used to detect whether messages got lost
in transit.

This patch implements support for extended console drivers.  Consoles can
indicate that they want extended messages by setting the new CON_EXTENDED
flag and they'll be fed messages formatted the same way as /dev/kmsg.

 "<level>,<sequnum>,<timestamp>,<contflag>;<message text>\n"

If extended consoles exist, in-kernel fragment assembly is disabled.  This
ensures that all messages emitted to consoles have full metadata including
sequence number.  The contflag carries enough information to reassemble
the fragments from the reader side trivially.  Note that this only affects
/dev/kmsg.  Regular console and /proc/kmsg outputs are not affected by
this change.

* Extended message formatting for console drivers is enabled iff there
  are registered extended consoles.

* Comment describing /dev/kmsg message format updated to add missing
  contflag field and help distinguishing variable from verbatim terms.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: David Miller <davem@davemloft.net>
Cc: Kay Sievers <kay@vrfy.org>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:38 -07:00
Pratyush Anand e34cadde3b Pratyush Anand has moved
pratyush.anand@st.com email-id doesn't exist anymore as I have left the
company.  Replace ST's id with pratyush.anand@gmail.com.

Signed-off-by: Pratyush Anand <pratyush.anand@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:38 -07:00
Dan Streetman c00ed16a9e zswap: runtime enable/disable
Change the "enabled" parameter to be configurable at runtime.  Remove the
enabled check from init(), and move it to the frontswap store() function;
when enabled, pages will be stored, and when disabled, pages won't be
stored.

This is almost identical to Seth's patch from 2 years ago:
http://lkml.iu.edu/hypermail/linux/kernel/1307.2/04289.html

[akpm@linux-foundation.org: tweak documentation]
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Suggested-by: Seth Jennings <sjennings@variantweb.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:37 -07:00
Sergey Senozhatsky 6566d1a32b zram: add dynamic device add/remove functionality
We currently don't support on-demand device creation.  The one and only
way to have N zram devices is to specify num_devices module parameter
(default value: 1).  IOW if, for some reason, at some point, user wants
to have N + 1 devies he/she must umount all the existing devices, unload
the module, load the module passing num_devices equals to N + 1.  And do
this again, if needed.

This patch introduces zram control sysfs class, which has two sysfs
attrs:
- hot_add      -- add a new zram device
- hot_remove   -- remove a specific (device_id) zram device

hot_add sysfs attr is read-only and has only automatic device id
assignment mode (as requested by Minchan Kim).  read operation performed
on this attr creates a new zram device and returns back its device_id or
error status.

Usage example:
	# add a new specific zram device
	cat /sys/class/zram-control/hot_add
	2

	# remove a specific zram device
	echo 4 > /sys/class/zram-control/hot_remove

Returning zram_add() error code back to user (-ENOMEM in this case)

	cat /sys/class/zram-control/hot_add
	cat: /sys/class/zram-control/hot_add: Cannot allocate memory

NOTE, there might be users who already depend on the fact that at least
zram0 device gets always created by zram_init(). Preserve this behavior.

[minchan@kernel.org: use zram->claim to avoid lockdep splat]
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:36 -07:00
Sergey Senozhatsky c3cdb40e66 zram: remove max_num_devices limitation
Limiting the number of zram devices to 32 (default max_num_devices value)
is confusing, let's drop it.  A user with 2TB or 4TB of RAM, for example,
can request as many devices as he can handle.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:36 -07:00
Sergey Senozhatsky 3d8ed88ba7 zram: add `compact` sysfs entry to documentation
We currently don't support zram on-demand device creation.  The only way
to have N zram devices is to specify num_devices module parameter (default
value 1).  That means that if, for some reason, at some point, user wants
to have N + 1 devies he/she must umount all the existing devices, unload
the module, load the module passing num_devices equals to N + 1.

This patchset introduces zram-control sysfs class, which has two sysfs
attrs:

 - hot_add     -- add a new zram device
 - hot_remove  -- remove a specific (device_id) zram device

    Usage example:
        # add a new specific zram device
        cat /sys/class/zram-control/hot_add
        1

        # remove a specific zram device
        echo 4 > /sys/class/zram-control/hot_remove

This patch (of 10):

Briefly describe missing `compact` sysfs entry.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-25 17:00:36 -07:00
Linus Torvalds 64e22b8685 Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:

 - a number of libata core changes to better support NCQ TRIM.

 - ahci now supports MSI-X in single IRQ mode to support a new
   controller which doesn't implement MSI or INTX.

 - ahci now supports edge-triggered IRQ mode to support a new controller
   which for some odd reason did edge-triggered IRQ.

 - the usual controller support additions and changes.

* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (27 commits)
  libata: Do not blacklist Micron M500DC
  ata: ahci_mvebu: add suspend/resume support
  ahci, msix: Fix build error for !PCI_MSI
  ahci: Add support for Cavium's ThunderX host controller
  ahci: Add generic MSI-X support for single interrupts to SATA PCI driver
  libata: finally use __initconst in ata_parse_force_one()
  drivers: ata: add support for Ceva sata host controller
  devicetree:bindings: add devicetree bindings for ceva ahci
  ahci: added support for Freescale AHCI sata
  ahci: Store irq number in struct ahci_host_priv
  ahci: Move interrupt enablement code to a separate function
  Doc: libata: Fix spelling typo found in libata.xml
  ata:sata_nv - Change 1 to true for bool type variable.
  ata: add Broadcom AHCI SATA3 driver for STB chips
  Documentation: devicetree: add Broadcom SATA binding
  libata: Fix regression when the NCQ Send and Receive log page is absent
  ata: hpt366: fix constant cast warning
  ata: ahci_xgene: potential NULL dereference in probe
  ata: ahci_xgene: Add AHCI Support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller.
  libahci: Add support to handle HOST_IRQ_STAT as edge trigger latch.
  ...
2015-06-25 16:49:21 -07:00
Linus Torvalds 6597ac8a51 - DM core cleanups
- blk-mq request-based DM no longer uses any mempools now that partial
     completions are no longer handled as part of cloned requests
 
 - DM raid cleanups and support for MD raid0
 
 - DM cache core advances and a new stochastic-multi-queue (smq) cache
   replacement policy
   - smq is the new default dm-cache policy
 
 - DM thinp cleanups and much more efficient large discard support
 
 - DM statistics support for request-based DM and nanosecond resolution
   timestamps
 
 - Fixes to DM stripe, DM log-writes, DM raid1 and DM crypt
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Merge tag 'dm-4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - DM core cleanups:

     * blk-mq request-based DM no longer uses any mempools now that
       partial completions are no longer handled as part of cloned
       requests

 - DM raid cleanups and support for MD raid0

 - DM cache core advances and a new stochastic-multi-queue (smq) cache
   replacement policy

     * smq is the new default dm-cache policy

 - DM thinp cleanups and much more efficient large discard support

 - DM statistics support for request-based DM and nanosecond resolution
   timestamps

 - Fixes to DM stripe, DM log-writes, DM raid1 and DM crypt

* tag 'dm-4.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (39 commits)
  dm stats: add support for request-based DM devices
  dm stats: collect and report histogram of IO latencies
  dm stats: support precise timestamps
  dm stats: fix divide by zero if 'number_of_areas' arg is zero
  dm cache: switch the "default" cache replacement policy from mq to smq
  dm space map metadata: fix occasional leak of a metadata block on resize
  dm thin metadata: fix a race when entering fail mode
  dm thin: fail messages with EOPNOTSUPP when pool cannot handle messages
  dm thin: range discard support
  dm thin metadata: add dm_thin_remove_range()
  dm thin metadata: add dm_thin_find_mapped_range()
  dm btree: add dm_btree_remove_leaves()
  dm stats: Use kvfree() in dm_kvfree()
  dm cache: age and write back cache entries even without active IO
  dm cache: prefix all DMERR and DMINFO messages with cache device name
  dm cache: add fail io mode and needs_check flag
  dm cache: wake the worker thread every time we free a migration object
  dm cache: add stochastic-multi-queue (smq) policy
  dm cache: boost promotion of blocks that will be overwritten
  dm cache: defer whole cells
  ...
2015-06-25 16:34:39 -07:00
Linus Torvalds e4bc13adfd Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block
Pull cgroup writeback support from Jens Axboe:
 "This is the big pull request for adding cgroup writeback support.

  This code has been in development for a long time, and it has been
  simmering in for-next for a good chunk of this cycle too.  This is one
  of those problems that has been talked about for at least half a
  decade, finally there's a solution and code to go with it.

  Also see last weeks writeup on LWN:

        http://lwn.net/Articles/648292/"

* 'for-4.2/writeback' of git://git.kernel.dk/linux-block: (85 commits)
  writeback, blkio: add documentation for cgroup writeback support
  vfs, writeback: replace FS_CGROUP_WRITEBACK with SB_I_CGROUPWB
  writeback: do foreign inode detection iff cgroup writeback is enabled
  v9fs: fix error handling in v9fs_session_init()
  bdi: fix wrong error return value in cgwb_create()
  buffer: remove unusued 'ret' variable
  writeback: disassociate inodes from dying bdi_writebacks
  writeback: implement foreign cgroup inode bdi_writeback switching
  writeback: add lockdep annotation to inode_to_wb()
  writeback: use unlocked_inode_to_wb transaction in inode_congested()
  writeback: implement unlocked_inode_to_wb transaction and use it for stat updates
  writeback: implement [locked_]inode_to_wb_and_lock_list()
  writeback: implement foreign cgroup inode detection
  writeback: make writeback_control track the inode being written back
  writeback: relocate wb[_try]_get(), wb_put(), inode_{attach|detach}_wb()
  mm: vmscan: disable memcg direct reclaim stalling if cgroup writeback support is in use
  writeback: implement memcg writeback domain based throttling
  writeback: reset wb_domain->dirty_limit[_tstmp] when memcg domain size changes
  writeback: implement memcg wb_domain
  writeback: update wb_over_bg_thresh() to use wb_domain aware operations
  ...
2015-06-25 16:00:17 -07:00
Linus Torvalds ad90fb9751 Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block
Pull asm/scatterlist.h removal from Jens Axboe:
 "We don't have any specific arch scatterlist anymore, since parisc
  finally switched over.  Kill the include"

* 'for-4.2/sg' of git://git.kernel.dk/linux-block:
  remove scatterlist.h generation from arch Kbuild files
  remove <asm/scatterlist.h>
2015-06-25 15:22:36 -07:00
Linus Torvalds 55a7d4b85c h8300 pull request for 4.2
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Merge tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux

Pull Renesas H8/300 architecture re-introduction from Yoshinori Sato.

We dropped arch/h8300 two years ago as stale and old, this is a new and
more modern rewritten arch support for the same architecture.

* tag 'for-4.2' of git://git.sourceforge.jp/gitroot/uclinux-h8/linux: (27 commits)
  h8300: fix typo.
  h8300: Always build dtb
  h8300: Remove ARCH_WANT_IPC_PARSE_VERSION
  sh-sci: Get register size from platform device
  clk: h8300: fix error handling in h8s2678_pll_clk_setup()
  h8300: Symbol name fix
  h8300: devicetree source
  h8300: configs
  h8300: IRQ chip driver
  h8300: clocksource
  h8300: clock driver
  h8300: Build scripts
  h8300: library functions
  h8300: Memory management
  h8300: miscellaneous functions
  h8300: process helpers
  h8300: compressed image support
  h8300: Low level entry
  h8300: kernel startup
  h8300: Interrupt and exceptions
  ...
2015-06-25 13:07:24 -07:00
Ivan Khoronzhuk 863ef5ba29 Documentation: ABI: sysfs-firmware-dmi: add -entries suffix to file name
The dmi-sysfs module adds DMI table structures entries under
/sys/firmware/dmi/entries only, so rename documentation file to
sysfs-firmware-dmi-entries as more appropriate. Without renaming it's
confusing to differ this from sysfs-firmware-dmi-tables that adds raw
DMI table and actually adds "dmi" kobject.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@globallogic.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2015-06-25 09:06:57 +02:00
Ivan Khoronzhuk d7f96f97c4 firmware: dmi_scan: add SBMIOS entry and DMI tables
Some utils, like dmidecode and smbios, need to access SMBIOS entry
table area in order to get information like SMBIOS version, size, etc.
Currently it's done via /dev/mem. But for situation when /dev/mem
usage is disabled, the utils have to use dmi sysfs instead, which
doesn't represent SMBIOS entry and adds code/delay redundancy when direct
access for table is needed.

So this patch creates dmi/tables and adds SMBIOS entry point to allow
utils in question to work correctly without /dev/mem. Also patch adds
raw dmi table to simplify dmi table processing in user space, as
proposed by Jean Delvare.

Tested-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@globallogic.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
2015-06-25 09:06:56 +02:00
Kevin Hilman 32270e805a ARM: SoC: driver updates for v4.2
Some of these are for drivers/soc, where we're now putting
 SoC-specific drivers these days. Some are for other driver subsystems
 where we have received acks from the appropriate maintainers.
 
 Some highlights:
 
 - simple-mfd: document DT bindings and misc updates
 - migrate mach-berlin to simple-mfd for clock, pinctrl and reset
 - memory: support for Tegra132 SoC
 - memory: introduce tegra EMC driver for scaling memory frequency
 - misc. updates for ARM CCI and CCN busses
 
  Conflicts:
 	arch/arm64/boot/dts/arm/juno-motherboard.dtsi
 
  Trivial add/add conflict with our dt branch.
  Resolution: take both sides.
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Merge tag 'armsoc-drivers' into test-merge

ARM: SoC: driver updates for v4.2

Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.

Some highlights:

- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses

 Conflicts:
	arch/arm64/boot/dts/arm/juno-motherboard.dtsi

 Trivial add/add conflict with our dt branch.
 Resolution: take both sides.

# gpg: Signature made Wed Jun 24 21:32:17 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <khilman@deeprootsystems.com>"
# gpg:                 aka "Kevin Hilman <khilman@linaro.org>"
# gpg:                 aka "Kevin Hilman <khilman@kernel.org>"

# Conflicts:
#	arch/arm64/boot/dts/arm/juno-motherboard.dtsi
2015-06-24 21:32:26 -07:00
Kevin Hilman 39e79b873e ARM: SoC: DT updates for v4.2
As usual, quite a few device-tree updates in ARM land.  There was ome
 minor churn in DTs due to relicensing under a dual-license, and lots
 of little additions of new peripherals, features etc, but nothing
 really exciting to call to your attention.  Some higlights, focsuing
 on support for new SoCs and boards:
 
 - AT91: new boards: Overkiz,  Acme Systems' Arietta G25
 - tegra: HDA support
 - bcm: new platforms: Buffalo WXR-1900DHP, SmartRG SR400ac, ASUS RT-AC87U
 - mvebu: new platforms: Compulab CM-A510, Armada 385-based Linksys
   boards, DLink DNS-327L
 - OMAP: new platforms: Baltos IR5221, LogicPD Torpedo, Toby-Churchill SL50
 - ARM: added support for Juno r1 board
 - sunxi: A33 SoC support; new boards: A23 EVB, SinA33, GA10H-A33, Mele A1000G
 - imx: i.MX7D SoC support; new boards: Armadeus Systems APF6,
   Gateworks GW5510, and aristainetos2 boards
 - hisilicon: hi6220 SoC support; new boards: 96boards hikey
 
 Conflicts: None
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
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 -----END PGP SIGNATURE-----

Merge tag 'armsoc-dt' into test-merge

ARM: SoC: DT updates for v4.2

As usual, quite a few device-tree updates in ARM land.  There was ome
minor churn in DTs due to relicensing under a dual-license, and lots
of little additions of new peripherals, features etc, but nothing
really exciting to call to your attention.  Some higlights, focsuing
on support for new SoCs and boards:

- AT91: new boards: Overkiz,  Acme Systems' Arietta G25
- tegra: HDA support
- bcm: new platforms: Buffalo WXR-1900DHP, SmartRG SR400ac, ASUS RT-AC87U
- mvebu: new platforms: Compulab CM-A510, Armada 385-based Linksys
  boards, DLink DNS-327L
- OMAP: new platforms: Baltos IR5221, LogicPD Torpedo, Toby-Churchill SL50
- ARM: added support for Juno r1 board
- sunxi: A33 SoC support; new boards: A23 EVB, SinA33, GA10H-A33, Mele A1000G
- imx: i.MX7D SoC support; new boards: Armadeus Systems APF6,
  Gateworks GW5510, and aristainetos2 boards
- hisilicon: hi6220 SoC support; new boards: 96boards hikey

Conflicts: None

# gpg: Signature made Wed Jun 24 21:32:14 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <khilman@deeprootsystems.com>"
# gpg:                 aka "Kevin Hilman <khilman@linaro.org>"
# gpg:                 aka "Kevin Hilman <khilman@kernel.org>"
2015-06-24 21:32:15 -07:00
Kevin Hilman 03fa626774 ARM: SoC: platform support for v4.2
Our SoC branch usually contains expanded support for new SoCs and
 other core platform code. Some highlights from this round:
 
 - sunxi: SMP support for A23 SoC
 - socpga: big-endian support
 - pxa: conversion to common clock framework
 - bcm: SMP support for BCM63138
 - imx: support new I.MX7D SoC
 - zte: basic support for ZX296702 SoC
 
  Conflicts:
 	arch/arm/mach-socfpga/core.h
 
 Trivial remove/remove conflict with our cleanup branch.
 Resolution: remove both sides
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 -----END PGP SIGNATURE-----

Merge tag 'armsoc-soc' into test-merge

ARM: SoC: platform support for v4.2

Our SoC branch usually contains expanded support for new SoCs and
other core platform code. Some highlights from this round:

- sunxi: SMP support for A23 SoC
- socpga: big-endian support
- pxa: conversion to common clock framework
- bcm: SMP support for BCM63138
- imx: support new I.MX7D SoC
- zte: basic support for ZX296702 SoC

 Conflicts:
	arch/arm/mach-socfpga/core.h

Trivial remove/remove conflict with our cleanup branch.
Resolution: remove both sides

# gpg: Signature made Wed Jun 24 21:32:12 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <khilman@deeprootsystems.com>"
# gpg:                 aka "Kevin Hilman <khilman@linaro.org>"
# gpg:                 aka "Kevin Hilman <khilman@kernel.org>"

# Conflicts:
#	arch/arm/mach-socfpga/core.h
2015-06-24 21:32:13 -07:00
Kevin Hilman 8d2977bf36 ARM: SoC cleanups for v4.2
A relatively small setup of cleanups this time around, and similar to last time
 the bulk of it is removal of legacy board support:
 
 - OMAP: removal of legacy (non-DT) booting for several platforms
 - i.MX: remove some legacy board files
 
 Conflicts: None
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Merge tag 'armsoc-cleanup' into test-merge

ARM: SoC cleanups for v4.2

A relatively small setup of cleanups this time around, and similar to last time
the bulk of it is removal of legacy board support:

- OMAP: removal of legacy (non-DT) booting for several platforms
- i.MX: remove some legacy board files

Conflicts: None

# gpg: Signature made Wed Jun 24 21:32:09 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <khilman@deeprootsystems.com>"
# gpg:                 aka "Kevin Hilman <khilman@linaro.org>"
# gpg:                 aka "Kevin Hilman <khilman@kernel.org>"
2015-06-24 21:32:10 -07:00
Vinod Koul f2704052cb Merge branch 'topic/pxa' into for-linus 2015-06-25 09:21:58 +05:30
Vinod Koul 0e0fa66e39 Merge branch 'topic/omap' into for-linus 2015-06-25 09:21:43 +05:30
Vinod Koul 9324fdf526 Merge branch 'topic/core' into for-linus 2015-06-25 09:21:37 +05:30
Linus Torvalds aefbef10e3 Merge branch 'akpm' (patches from Andrew)
Merge first patchbomb from Andrew Morton:

 - a few misc things

 - ocfs2 udpates

 - kernel/watchdog.c feature work (took ages to get right)

 - most of MM.  A few tricky bits are held up and probably won't make 4.2.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (91 commits)
  mm: kmemleak_alloc_percpu() should follow the gfp from per_alloc()
  mm, thp: respect MPOL_PREFERRED policy with non-local node
  tmpfs: truncate prealloc blocks past i_size
  mm/memory hotplug: print the last vmemmap region at the end of hot add memory
  mm/mmap.c: optimization of do_mmap_pgoff function
  mm: kmemleak: optimise kmemleak_lock acquiring during kmemleak_scan
  mm: kmemleak: avoid deadlock on the kmemleak object insertion error path
  mm: kmemleak: do not acquire scan_mutex in kmemleak_do_cleanup()
  mm: kmemleak: fix delete_object_*() race when called on the same memory block
  mm: kmemleak: allow safe memory scanning during kmemleak disabling
  memcg: convert mem_cgroup->under_oom from atomic_t to int
  memcg: remove unused mem_cgroup->oom_wakeups
  frontswap: allow multiple backends
  x86, mirror: x86 enabling - find mirrored memory ranges
  mm/memblock: allocate boot time data structures from mirrored memory
  mm/memblock: add extra "flags" to memblock to allow selection of memory based on attribute
  mm: do not ignore mapping_gfp_mask in page cache allocation paths
  mm/cma.c: fix typos in comments
  mm/oom_kill.c: print points as unsigned int
  mm/hugetlb: handle races in alloc_huge_page and hugetlb_reserve_pages
  ...
2015-06-24 20:47:21 -07:00
Linus Torvalds a7296b49fb Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes and cleanups from Jan Kara:
 "The contains some small fixes and improvements in error handling for
  UDF.

  Bundled is also one ext3 coding style fix and a fix in quota
  documentation"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: fix udf_load_pvoldesc()
  udf: remove double err declaration in udf_file_write_iter()
  UDF: support NFSv2 export
  fs: ext3: super: fixed a space coding style issue
  quota: Update documentation
  udf: Return error from udf_find_entry()
  udf: Make udf_get_filename() return error instead of 0 length file name
  udf: bug on exotic flag in udf_get_filename()
  udf: improve error management in udf_CS0toNLS()
  udf: improve error management in udf_CS0toUTF8()
  udf: unicode: update function name in comments
  udf: remove unnecessary test in udf_build_ustr_exact()
  udf: Return -ENOMEM when allocation fails in udf_get_filename()
2015-06-24 20:07:10 -07:00
Linus Torvalds 1e467e68e5 Documentation updates for 4.2
The main thing here is Ingo's big subdirectory documenting feature support
 for each architecture.  Beyond that, it's the usual pile of fixes, tweaks,
 and small additions.
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 Version: GnuPG v1
 
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Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6

Pull documentation updates from Jonathan Corbet:
 "The main thing here is Ingo's big subdirectory documenting feature
  support for each architecture.  Beyond that, it's the usual pile of
  fixes, tweaks, and small additions"

* tag 'docs-for-linus' of git://git.lwn.net/linux-2.6: (79 commits)
  doc:md: fix typo in md.txt.
  Documentation/mic/mpssd: don't build x86 userspace when cross compiling
  Documentation/prctl: don't build tsc tests when cross compiling
  Documentation/vDSO: don't build tests when cross compiling
  Doc:ABI/testing: Fix typo in sysfs-bus-fcoe
  Doc: Docbook: Change wikipedia's URL from http to https in scsi.tmpl
  Doc: Change wikipedia's URL from http to https
  Documentation/kernel-parameters: add missing pciserial to the earlyprintk
  Doc:pps: Fix typo in pps.txt
  kbuild : Fix documentation of INSTALL_HDR_PATH
  Documentation: filesystems: updated struct file_operations documentation in vfs.txt
  kbuild: edit explanation of clean-files variable
  Doc: ja_JP: Fix typo in HOWTO
  Move freefall program from Documentation/ to tools/
  Documentation: ARM: EXYNOS: Describe boot loaders interface
  Doc:nfc: Fix typo in nfc-hci.txt
  vfs: Minor documentation fix
  Doc: networking: txtimestamp: fix printf format warning
  Documentation, intel_pstate: Improve legacy mode internal governors description
  Documentation: extend use case for EXPORT_SYMBOL_GPL()
  ...
2015-06-24 20:01:36 -07:00
Linus Torvalds 14738e0331 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem updates from Dmitry Torokhov:
 "Thanks to Samuel Thibault input device (keyboard) LEDs are no longer
  hardwired within the input core but use LED subsystem and so allow use
  of different triggers; Hans de Goede did a large update for the ALPS
  touchpad driver; we have new TI drv2665 haptics driver and DA9063
  OnKey driver, and host of other drivers got various fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (55 commits)
  Input: pixcir_i2c_ts - fix receive error
  MAINTAINERS: remove non existent input mt git tree
  Input: improve usage of gpiod API
  tty/vt/keyboard: define LED triggers for VT keyboard lock states
  tty/vt/keyboard: define LED triggers for VT LED states
  Input: export LEDs as class devices in sysfs
  Input: cyttsp4 - use swap() in cyttsp4_get_touch()
  Input: goodix - do not explicitly set evbits in input device
  Input: goodix - export id and version read from device
  Input: goodix - fix variable length array warning
  Input: goodix - fix alignment issues
  Input: add OnKey driver for DA9063 MFD part
  Input: elan_i2c - add product IDs FW names
  Input: elan_i2c - add support for multi IC type and iap format
  Input: focaltech - report finger width to userspace
  tty: remove platform_sysrq_reset_seq
  Input: synaptics_i2c - use proper boolean values
  Input: psmouse - use true instead of 1 for boolean values
  Input: cyapa - fix a few typos in comments
  Input: stmpe-ts - enforce device tree only mode
  ...
2015-06-24 19:56:58 -07:00
Linus Torvalds 45471cd98d EDAC changes, v2:
* New APM X-Gene SoC EDAC driver (Loc Ho)
 
 * AMD error injection module improvements (Aravind Gopalakrishnan)
 
 * Altera Arria 10 support (Thor Thayer)
 
 * misc fixes and cleanups all over the place
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Merge tag 'edac_for_4.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - New APM X-Gene SoC EDAC driver (Loc Ho)

 - AMD error injection module improvements (Aravind Gopalakrishnan)

 - Altera Arria 10 support (Thor Thayer)

 - misc fixes and cleanups all over the place

* tag 'edac_for_4.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (28 commits)
  EDAC: Update Documentation/edac.txt
  EDAC: Fix typos in Documentation/edac.txt
  EDAC, mce_amd_inj: Set MISCV on injection
  EDAC, mce_amd_inj: Move bit preparations before the injection
  EDAC, mce_amd_inj: Cleanup and simplify README
  EDAC, altera: Do not allow suspend when EDAC is enabled
  EDAC, mce_amd_inj: Make inj_type static
  arm: socfpga: dts: Add Arria10 SDRAM EDAC DTS support
  EDAC, altera: Add Arria10 EDAC support
  EDAC, altera: Refactor for Altera CycloneV SoC
  EDAC, altera: Generalize driver to use DT Memory size
  EDAC, mce_amd_inj: Add README file
  EDAC, mce_amd_inj: Add individual permissions field to dfs_node
  EDAC, mce_amd_inj: Modify flags attribute to use string arguments
  EDAC, mce_amd_inj: Read out number of MCE banks from the hardware
  EDAC, mce_amd_inj: Use MCE_INJECT_GET macro for bank node too
  EDAC, xgene: Fix cpuid abuse
  EDAC, mpc85xx: Extend error address to 64 bit
  EDAC, mpc8xxx: Adapt for FSL SoC
  EDAC, edac_stub: Drop arch-specific include
  ...
2015-06-24 19:52:06 -07:00
Linus Torvalds 93a4b1b946 Here is the bulk of pin control changes for the v4.2 series:
- Core functionality:
   - Enable exclusive pin ownership: it is possible to flag a pin
     controller so that GPIO and other functions cannot use a single
     pin simultaneously.
 
 - New drivers:
   - NXP LPC18xx System Control Unit pin controller
   - Imagination Pistachio SoC pin controller
 
 - New subdrivers:
   - Freescale i.MX7d SoC
   - Intel Sunrisepoint-H PCH
   - Renesas PFC R8A7793
   - Renesas PFC R8A7794
   - Mediatek MT6397, MT8127
   - SiRF Atlas 7
   - Allwinner A33
   - Qualcomm MSM8660
   - Marvell Armada 395
   - Rockchip RK3368
 
 - Cleanups:
   - A big cleanup of the Marvell MVEBU driver rectifying it to
     correspond to reality
   - Drop platform device probing from the SH PFC driver, we are now a
     DT only shop for SuperH
   - Drop obsolte multi-platform check for SH PFC
   - Various janitorial: constification, grammar etc
 
 - Improvements:
   - The AT91 GPIO portions now supports the set_multiple() feature
   - Split out SPI pins on the Xilinx Zynq
   - Support DTs without specific function nodes in the i.MX driver
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Merge tag 'pinctrl-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "Here is the bulk of pin control changes for the v4.2 series: Quite a
  lot of new SoC subdrivers and two new main drivers this time, apart
  from that business as usual.

  Details:

  Core functionality:
   - Enable exclusive pin ownership: it is possible to flag a pin
     controller so that GPIO and other functions cannot use a single pin
     simultaneously.

  New drivers:
   - NXP LPC18xx System Control Unit pin controller
   - Imagination Pistachio SoC pin controller

  New subdrivers:
   - Freescale i.MX7d SoC
   - Intel Sunrisepoint-H PCH
   - Renesas PFC R8A7793
   - Renesas PFC R8A7794
   - Mediatek MT6397, MT8127
   - SiRF Atlas 7
   - Allwinner A33
   - Qualcomm MSM8660
   - Marvell Armada 395
   - Rockchip RK3368

  Cleanups:
   - A big cleanup of the Marvell MVEBU driver rectifying it to
     correspond to reality
   - Drop platform device probing from the SH PFC driver, we are now a
     DT only shop for SuperH
   - Drop obsolte multi-platform check for SH PFC
   - Various janitorial: constification, grammar etc

  Improvements:
   - The AT91 GPIO portions now supports the set_multiple() feature
   - Split out SPI pins on the Xilinx Zynq
   - Support DTs without specific function nodes in the i.MX driver"

* tag 'pinctrl-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
  pinctrl: rockchip: add support for the rk3368
  pinctrl: rockchip: generalize perpin driver-strength setting
  pinctrl: sh-pfc: r8a7794: add SDHI pin groups
  pinctrl: sh-pfc: r8a7794: add MMCIF pin groups
  pinctrl: sh-pfc: add R8A7794 PFC support
  pinctrl: make pinctrl_register() return proper error code
  pinctrl: mvebu: armada-39x: add support for Armada 395 variant
  pinctrl: mvebu: armada-39x: add missing SATA functions
  pinctrl: mvebu: armada-39x: add missing PCIe functions
  pinctrl: mvebu: armada-38x: add ptp functions
  pinctrl: mvebu: armada-38x: add ua1 functions
  pinctrl: mvebu: armada-38x: add nand functions
  pinctrl: mvebu: armada-38x: add sata functions
  pinctrl: mvebu: armada-xp: add dram functions
  pinctrl: mvebu: armada-xp: add nand rb function
  pinctrl: mvebu: armada-xp: add spi1 function
  pinctrl: mvebu: armada-39x: normalize ref clock naming
  pinctrl: mvebu: armada-xp: rename spi to spi0
  pinctrl: mvebu: armada-370: align spi1 clock pin naming
  pinctrl: mvebu: armada-370: align VDD cpu-pd pin naming with datasheet
  ...
2015-06-24 19:21:02 -07:00
Michal Hocko 9b012a29a3 Documentation/vm/unevictable-lru.txt: clarify MAP_LOCKED behavior
There is a very subtle difference between mmap()+mlock() vs
mmap(MAP_LOCKED) semantic.  The former one fails if the population of the
area fails while the later one doesn't.  This basically means that
mmap(MAPLOCKED) areas might see major fault after mmap syscall returns
which is not the case for mlock.  mmap man page has already been altered
but Documentation/vm/unevictable-lru.txt deserves a clarification as well.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-24 17:49:44 -07:00
Chris Metcalf fe4ba3c343 watchdog: add watchdog_cpumask sysctl to assist nohz
Change the default behavior of watchdog so it only runs on the
housekeeping cores when nohz_full is enabled at build and boot time.
Allow modifying the set of cores the watchdog is currently running on
with a new kernel.watchdog_cpumask sysctl.

In the current system, the watchdog subsystem runs a periodic timer that
schedules the watchdog kthread to run.  However, nohz_full cores are
designed to allow userspace application code running on those cores to
have 100% access to the CPU.  So the watchdog system prevents the
nohz_full application code from being able to run the way it wants to,
thus the motivation to suppress the watchdog on nohz_full cores, which
this patchset provides by default.

However, if we disable the watchdog globally, then the housekeeping
cores can't benefit from the watchdog functionality.  So we allow
disabling it only on some cores.  See Documentation/lockup-watchdogs.txt
for more information.

[jhubbard@nvidia.com: fix a watchdog crash in some configurations]
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Ulrich Obergfell <uobergfe@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-24 17:49:40 -07:00
Vineet Gupta 5fa2daaa8d ARCv2: [axs103] Support ARC SDP FPGA platform for HS38x cores
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-06-25 06:00:20 +05:30
Linus Torvalds e0456717e4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Add TX fast path in mac80211, from Johannes Berg.

 2) Add TSO/GRO support to ibmveth, from Thomas Falcon

 3) Move away from cached routes in ipv6, just like ipv4, from Martin
    KaFai Lau.

 4) Lots of new rhashtable tests, from Thomas Graf.

 5) Run ingress qdisc lockless, from Alexei Starovoitov.

 6) Allow servers to fetch TCP packet headers for SYN packets of new
    connections, for fingerprinting.  From Eric Dumazet.

 7) Add mode parameter to pktgen, for testing receive.  From Alexei
    Starovoitov.

 8) Cache access optimizations via simplifications of build_skb(), from
    Alexander Duyck.

 9) Move page frag allocator under mm/, also from Alexander.

10) Add xmit_more support to hv_netvsc, from KY Srinivasan.

11) Add a counter guard in case we try to perform endless reclassify
    loops in the packet scheduler.

12) Extern flow dissector to be programmable and use it in new "Flower"
    classifier.  From Jiri Pirko.

13) AF_PACKET fanout rollover fixes, performance improvements, and new
    statistics.  From Willem de Bruijn.

14) Add netdev driver for GENEVE tunnels, from John W Linville.

15) Add ingress netfilter hooks and filtering, from Pablo Neira Ayuso.

16) Fix handling of epoll edge triggers in TCP, from Eric Dumazet.

17) Add an ECN retry fallback for the initial TCP handshake, from Daniel
    Borkmann.

18) Add tail call support to BPF, from Alexei Starovoitov.

19) Add several pktgen helper scripts, from Jesper Dangaard Brouer.

20) Add zerocopy support to AF_UNIX, from Hannes Frederic Sowa.

21) Favor even port numbers for allocation to connect() requests, and
    odd port numbers for bind(0), in an effort to help avoid
    ip_local_port_range exhaustion.  From Eric Dumazet.

22) Add Cavium ThunderX driver, from Sunil Goutham.

23) Allow bpf programs to access skb_iif and dev->ifindex SKB metadata,
    from Alexei Starovoitov.

24) Add support for T6 chips in cxgb4vf driver, from Hariprasad Shenai.

25) Double TCP Small Queues default to 256K to accomodate situations
    like the XEN driver and wireless aggregation.  From Wei Liu.

26) Add more entropy inputs to flow dissector, from Tom Herbert.

27) Add CDG congestion control algorithm to TCP, from Kenneth Klette
    Jonassen.

28) Convert ipset over to RCU locking, from Jozsef Kadlecsik.

29) Track and act upon link status of ipv4 route nexthops, from Andy
    Gospodarek.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1670 commits)
  bridge: vlan: flush the dynamically learned entries on port vlan delete
  bridge: multicast: add a comment to br_port_state_selection about blocking state
  net: inet_diag: export IPV6_V6ONLY sockopt
  stmmac: troubleshoot unexpected bits in des0 & des1
  net: ipv4 sysctl option to ignore routes when nexthop link is down
  net: track link-status of ipv4 nexthops
  net: switchdev: ignore unsupported bridge flags
  net: Cavium: Fix MAC address setting in shutdown state
  drivers: net: xgene: fix for ACPI support without ACPI
  ip: report the original address of ICMP messages
  net/mlx5e: Prefetch skb data on RX
  net/mlx5e: Pop cq outside mlx5e_get_cqe
  net/mlx5e: Remove mlx5e_cq.sqrq back-pointer
  net/mlx5e: Remove extra spaces
  net/mlx5e: Avoid TX CQE generation if more xmit packets expected
  net/mlx5e: Avoid redundant dev_kfree_skb() upon NOP completion
  net/mlx5e: Remove re-assignment of wq type in mlx5e_enable_rq()
  net/mlx5e: Use skb_shinfo(skb)->gso_segs rather than counting them
  net/mlx5e: Static mapping of netdev priv resources to/from netdev TX queues
  net/mlx4_en: Use HW counters for rx/tx bytes/packets in PF device
  ...
2015-06-24 16:49:49 -07:00