everything's converted to ->iterate()
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

iterate_dir(): new helper, replacing vfs_readdir().

struct dir_context: contains the readdir callback (and will get more stuff
in it), embedded into whatever data that callback wants to deal with;
eventually, we'll be passing it to ->readdir() replacement instead of
(data,filldir) pair.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: Randy Dunlap <rdunlap@infradead.org>

Exynos5440 has a PCIe controller which can be used as Root Complex.
This driver supports a PCIe controller as Root Complex mode.
Signed-off-by: NSurendranath Gurivireddy Balla <suren.reddy@samsung.com>
Signed-off-by: NSiva Reddy Kallam <siva.kallam@samsung.com>
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Wound/wait mutexes are used when other multiple lock
acquisitions of a similar type can be done in an arbitrary
order. The deadlock handling used here is called wait/wound in
the RDBMS literature: The older tasks waits until it can acquire
the contended lock. The younger tasks needs to back off and drop
all the locks it is currently holding, i.e. the younger task is
wounded.

For full documentation please read Documentation/ww-mutex-design.txt.

References: https://lwn.net/Articles/548909/Signed-off-by: NMaarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: NRob Clark <robdclark@gmail.com>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: rostedt@goodmis.org
Cc: daniel@ffwll.ch
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/51C8038C.9000106@canonical.comSigned-off-by: NIngo Molnar <mingo@kernel.org>

The STiH416 is advanced HD AVC processor with 3D graphics acceleration
and 1.2-GHz ARM Cortex-A9 SMP CPU.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Stephen Gallimore <stephen.gallimore@st.com>
CC: Stuart Menefy <stuart.menefy@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The STiH415 is the next generation of HD, AVC set-top box processors for
satellite, cable, terrestrial and IP-STB markets. It is an ARM Cortex-A9
1.0 GHz, dual-core CPU.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Stephen Gallimore <stephen.gallimore@st.com>
CC: Stuart Menefy <stuart.menefy@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The SOC interrupt controller driver for the Abilis Systems TB10x series of
SOCs based on ARC700 CPUs.
Signed-off-by: NChristian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: NPierrick Hascoet <pierrick.hascoet@abilis.com>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: devicetree-discuss@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1372177797-9458-1-git-send-email-christian.ruppert@abilis.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

Add documenation for new ABI entries.
Signed-off-by: NThomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The binding definition is based on the generic DMA controller
binding.

Joel:
* Droped reserved and queue DT entries from Documentation
for now from the original patch series (v10)
* Included properties in Documentation and clarified DMA properties (V11)
* Made ti,hwmod option
* Clarified DMA entries
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMatt Porter <mporter@ti.com>
Signed-off-by: NJoel A Fernandes <joelagnel@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>

syncookies is on for default since in commit e994b7c9
(tcp: Don't make syn cookies initial setting depend on CONFIG_SYSCTL).

And fix a typo of CONFIG_SYN_COOKIES.
Signed-off-by: NShan Wei <davidshan@tencent.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch has been invaluable in my adventures finding
issues in the perf NMI handler.  I'm as big a fan of
printk() as anybody is, but using printk() in NMIs is
deadly when they're happening frequently.

Even hacking in trace_printk() ended up eating enough
CPU to throw off some of the measurements I was making.
Signed-off-by: NDave Hansen <dave.hansen@linux.intel.com>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus@samba.org
Cc: acme@ghostprotocols.net
Cc: Dave Hansen <dave@sr71.net>
Signed-off-by: NIngo Molnar <mingo@kernel.org>

This patch keeps track of how long perf's NMI handler is taking,
and also calculates how many samples perf can take a second.  If
the sample length times the expected max number of samples
exceeds a configurable threshold, it drops the sample rate.

This way, we don't have a runaway sampling process eating up the
CPU.

This patch can tend to drop the sample rate down to level where
perf doesn't work very well.  *BUT* the alternative is that my
system hangs because it spends all of its time handling NMIs.

I'll take a busted performance tool over an entire system that's
busted and undebuggable any day.

BTW, my suspicion is that there's still an underlying bug here.
Using the HPET instead of the TSC is definitely a contributing
factor, but I suspect there are some other things going on.
But, I can't go dig down on a bug like that with my machine
hanging all the time.
Signed-off-by: NDave Hansen <dave.hansen@linux.intel.com>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus@samba.org
Cc: acme@ghostprotocols.net
Cc: Dave Hansen <dave@sr71.net>
[ Prettified it a bit. ]
Signed-off-by: NIngo Molnar <mingo@kernel.org>

This patch adds device trees for describing the TI-Nspire hardware.

Changes between v1 and v2:
* Change "keymap" binding to the standard "linux,keymap" binding.
Signed-off-by: NDaniel Tang <dt.tangr@gmail.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Add SDHCI bindings for the Broadcom 281xx SoCs.

Changes from V2:
 - Documentation cleanups

Changes from V1:
 - split original patch into 2, one for driver and this one for dt
Signed-off-by: NChristian Daudt <csd@broadcom.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>

The Nomadik clock implementation was a stub just using
fixed clocks.

This implements the clocks properly instead of relying
on them all being on at boot and leaving them all on.

The PLLs are on the top locking to the main chrystal
oscillator, then the HCLK for the peripherals are
below PLL2.

The gated clocks are implemented with zero cells and
given the clock ID as a property of each node, so every
gate need to have its own node in the device tree.
This is because the gate registers contain both HCLK
gates and PCLK gates, where the latter has HCLK as
parent. As can be seen from the register layout, this
is a complete mixup, which means all these gates need
their own node to properly model parent/child relations
for PCLKs apart from the HCLKs.

This driver also adds a helpful debugfs file to inspect
the hardware state of the clock gates.

This is the end result in <debugfs>/clk/clk_summary
after applying a proper device tree:

ulpiclk                0   0    60000000
mxtal                  3   3    19200000
   pll2                1   1    864000000
      clk48            3   3    48000000
         rngcclk       1   1    48000000
         usbmclk       0   0    48000000
         mshcclk       0   0    48000000
         mspclk3       0   0    48000000
         x3dclk        0   0    48000000
         skeclk        0   0    48000000
         owmclk        0   0    48000000
         mspclk2       0   0    48000000
         mspclk1       0   0    48000000
         uart2clk      0   0    48000000
         ipbmcclk      0   0    48000000
         ipi2cclk      0   0    48000000
         usbclk        0   0    48000000
         mspclk0       0   0    48000000
         uart1clk      1   2    48000000
         i2c1clk       0   0    48000000
         i2c0clk       0   0    48000000
         sdiclk        1   1    48000000
         uart0clk      0   0    48000000
         sspiclk       0   0    48000000
         irdaclk       0   0    48000000
      clk72            0   0    72000000
         difclk        0   0    72000000
         clcdclk       0   0    72000000
      clk216           0   0    216000000
         hsiclkrx      0   0    216000000
         clk108        0   0    108000000
            hsiclktx   0   0    108000000
            clk27      0   0    27000000
   pll1                1   1    264000000
      hclk             3   3    264000000
         hclkrng       1   1    264000000
         hclkusbm      0   0    264000000
         hclkcryp      0   0    264000000
         hclkhash      0   0    264000000
         hclk3d        0   0    264000000
         hclkhpi       0   0    264000000
         hclksva       0   0    264000000
         hclksaa       0   0    264000000
         hclkdif       0   0    264000000
         hclkusb       0   0    264000000
         hclkclcd      0   0    264000000
         hclkdma1      0   0    264000000
         hclksdram     0   0    264000000
         hclksmc       1   1    264000000
         hclkdma0      0   0    264000000
         pclk          7   9    264000000
            pclkmsp3   0   0    264000000
            pclkmshc   0   0    264000000
            pclkhsem   0   0    264000000
            pclkske    0   0    264000000
            pclkowm    0   0    264000000
            pclkmsp2   0   0    264000000
            pclkmsp1   0   0    264000000
            pclkuart2  0   0    264000000
            pclkxti    0   0    264000000
            pclkhsi    0   0    264000000
            pclkmsp0   0   0    264000000
            pclkuart1  1   1    264000000
            pclki2c1   0   0    264000000
            pclki2c0   0   0    264000000
            pclksdi    1   1    264000000
            pclkuart0  1   1    264000000
            pclkssp    0   0    264000000
            pclkirda   0   0    264000000
   timclk              1   1    2400000
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Add Samsung EXYNOS5420 SoC specific data to enable pinctrl
support for all platforms based on EXYNOS5420.
Signed-off-by: NLeela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Acked-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by : Sunil Joshi <joshi@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Replaced the detailed gpio-ranges documentation with a reference to the
code gpio DT bindings, and mention the gpio flags symbolic names.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

To disable spurious interrupts, that get triggered on certain hardware, the
irqpin driver masks them on the parent interrupt controller. To specify
such broken devices a .control_parent parameter can be provided in the
platform data. In the DT case we need a property, to do the same.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Most of the stuff from kernel/sched.c was moved to kernel/sched/core.c long time
back and the comments/Documentation never got updated.

I figured it out when I was going through sched-domains.txt and so thought of
fixing it globally.

I haven't crossed check if the stuff that is referenced in sched/core.c by all
these files is still present and hasn't changed as that wasn't the motive behind
this patch.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NPeter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/cdff76a265326ab8d71922a1db5be599f20aad45.1370329560.git.viresh.kumar@linaro.orgSigned-off-by: NIngo Molnar <mingo@kernel.org>

Add AM43x ePOS EVM minimal DT source - this is a minimal one to get
it booting. Also include it in omap2plus dtbs and document bindings.
The hardware is under development.
Signed-off-by: NAfzal Mohammed <afzal@ti.com>
Signed-off-by: NBenoit Cousson <benoit.cousson@linaro.org>

This driver exports the memory area associated with the mezzanine card
as a misc device, so users can access registers.
Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Acked-by: NJuan David Gonzalez Cobas <dcobas@cern.ch>
Acked-by: NEmilio G. Cota <cota@braap.org>
Acked-by: NSamuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This driver allows to reprogram the EEPROM in a mezzanine, to store
its own identifiers during manufacturing or to save other useful data.
Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Acked-by: NJuan David Gonzalez Cobas <dcobas@cern.ch>
Acked-by: NEmilio G. Cota <cota@braap.org>
Acked-by: NSamuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This simple do-nothing mezzanine driver shows how to write a mezzanine
driver, that can also handle interrupts reported by the carrier.
Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Acked-by: NJuan David Gonzalez Cobas <dcobas@cern.ch>
Acked-by: NEmilio G. Cota <cota@braap.org>
Acked-by: NSamuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This fake carrier is designed to help FMC users understand how a
carrier driver works, and to experiment the behaviour with EEPROM
reprogramming (with a mezzanine driver commited later). This carrier
can register up to 4 (fake) mezzanines.

We have real carriers (both on PCI-E and VME), but they are bigger
things and are not part of this submission.
Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Acked-by: NJuan David Gonzalez Cobas <dcobas@cern.ch>
Acked-by: NEmilio G. Cota <cota@braap.org>
Acked-by: NSamuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This is selected sections of the current manual for fmc-bus, as
developed outside of the kernel before submission.

Like the other patches in this set, it corresponds to commit ab23167f of
the repository at ohwr.org
Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Acked-by: NJuan David Gonzalez Cobas <dcobas@cern.ch>
Acked-by: NEmilio G. Cota <cota@braap.org>
Acked-by: NSamuel Iglesias Gonsalvez <siglesias@igalia.com>
Acked-by: NRob Landley <rob@landley.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The EXYNOS5420 clocks are statically listed and registered using
the Samsung specific common clock helper functions.
Signed-off-by: NChander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: NThomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch updates the samsung i2s documentation for pinmux and
clock entries.
Signed-off-by: NPadmavathi Venna <padma.v@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Audio subsystem is introduced in s5pv210 and exynos platforms.
This has seperate clock controller which can control i2s0 and
pcm0 clocks. This patch registers the audio subsystem clocks
with the common clock framework on Exynos family.
Signed-off-by: NPadmavathi Venna <padma.v@samsung.com>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This adds support for the LVDS Display Bridge contained
in i.MX5 and i.MX6 SoCs.

Bit mapping, data width, and video timings are configurable
via device tree. Dual-channel mode is supported for a single
high-resolution source.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Most Renesas irqpin controllers have 4-bit sense fields, however, some
have different widths. This patch adds a DT binding to optionally
specify such non-standard values.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

This is the driver for the USB comparator built into the palmas chip. It
handles the various USB OTG events that can be generated by cable
insertion/removal.
Signed-off-by: NGraeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: NMoiz Sonasath <m-sonasath@ti.com>
Signed-off-by: NRuchika Kharwar <ruchika@ti.com>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NGeorge Cherian <george.cherian@ti.com>
[kishon@ti.com: adapted palmas usb driver to use the extcon framework]
Signed-off-by: NSebastien Guiriec <s-guiriec@ti.com>
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NMyungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add minimal device tree data for Keystone2 based SOCs. Patch
contains mainly ARM related SOC data and nothing about EVM specific
yet.

Cc: Grant Likely <grant.likely@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: arm@kernel.org
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>

This patch adds examples to samsung-pinctrl.txt documentaion file
on how to make gpio binding and gpio request
Signed-off-by: NLeela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: NDoug Anderson <dianders@chromium.org>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Even if a chipidea core is otg capable the board may not be. This allows
to explicitly set the core to host/peripheral mode. Without these flags
the driver falls back to the old behaviour.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NAlexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch makes it possible to configure the PTW, PTS and STS bits
inside the portsc register for host and device mode before the driver
starts and the phy can be addressed as hardware implementation is
designed.
Signed-off-by: NMichael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NAlexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: NAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add documentation for configfs-based usb gadget.
Signed-off-by: NAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add the f2fs_remount function call which will be used
during the filesystem remounting. This function
will help us to change the mount options specific to
f2fs.

Also modify the f2fs background_gc mount option, which
will allow the user to dynamically trun on/off the
garbage collection in f2fs based on the background_gc
value. If background_gc=on, Garbage collection will
be turned off & if background_gc=off, Garbage collection
will be truned on.

By default the garbage collection is on in f2fs.

Change Log:
v2: Incorporated the review comments by Gu Zheng.
    Removing the restore part for VFS flags
    Updating comments with proper flag conditions
    Display GC background option as ON/OFF
    Revised conditions to stop GC in case of remount

v1: Initial changes for adding remount_fs callback
support.

Cc: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: NNamjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: NPankaj Kumar <pankaj.km@samsung.com>
Reviewed-by: NGu Zheng <guz.fnst@cn.fujitsu.com>
[Jaegeuk Kim: change /** with /* for the coding style]
Signed-off-by: NJaegeuk Kim <jaegeuk.kim@samsung.com>

This converts the last of the U300 clocks to being probed from
the device tree.
Acked-by: NMike Turquette <mturquette@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>