17201 Commits

Author SHA1 Message Date
Boris BREZILLON
f9e1716f91 clk: at91: update main clk documentation
Update main clk documentation to match main clk implementation rework.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-05-07 18:27:44 +02:00
Tomi Valkeinen
2c5c4075bc Doc/DT: ti,omap4-dss: hdmi lanes
Add documentation for defining HDMI lane functions and polarities.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: devicetree@vger.kernel.org
2014-05-07 11:31:16 +03:00
Tomi Valkeinen
f8be053fc1 Doc/DT: hdmi-connector: add HPD GPIO documentation
Add binding documentation for HDMI connector's HPD GPIO.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: devicetree@vger.kernel.org
2014-05-07 11:30:16 +03:00
Tomi Valkeinen
905b1383d7 Doc/DT: Add DT binding documentation for MIPI DPI Panel
Add DT binding documentation for MIPI DPI Panel.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Cc: devicetree@vger.kernel.org
2014-05-07 11:01:19 +03:00
Pali Rohár
8a54cd5bd6 PM / hibernate: Documentation: Fix script for unswapping
System can have mmaped also character devices (e.g dri devices by X) or deleted
files. Running cat on character devices is really bad idea (system can hang) so
run cat only on regular files. Also mmaped files can have spaces in filenames.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-07 01:51:16 +02:00
Hans de Goede
886129a8ee ACPI / video: change acpi-video brightness_switch_enabled default to 0
acpi-video is unique in that it not only generates brightness up/down
keypresses, but also (sometimes) actively changes the brightness itself.

This presents an inconsistent kernel interface to userspace, basically there
are 2 different scenarios, depending on the laptop model:

 1) On some laptops a brightness up/down keypress means: show a brightness osd
 with the current brightness, iow it is a brightness has changed notification.

 2) Where as on (a lot of) other laptops it means a brightness up/down key was
 pressed, deal with it.

Most of the desktop environments interpret any press as in scenario 2, and
change the brightness up / down as a response to the key events, causing it
to be changed twice, once by acpi-video and once by the DE.

With the new default for video.use_native_backlight we will be moving even
more laptops over to behaving as in scenario 2. Making the remaining laptops
even more of a weird exception. Also note that it is hard to detect scenario
1 properly in userspace, and AFAIK none of the DE-s deals with it.

Therefor this commit changes the default of brightness_switch_enabled to 0
making its behavior consistent with all the other backlight drivers.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-07 01:07:06 +02:00
Rafael J. Wysocki
23a75c52be Merge back earlier ACPICA material. 2014-05-07 00:45:27 +02:00
Nishanth Menon
a0dd7b7965 PM / OPP: Move cpufreq specific OPP functions out of generic OPP library
CPUFreq specific helper functions for OPP (Operating Performance Points)
now use generic OPP functions that allow CPUFreq to be be moved back
into CPUFreq framework. This allows for independent modifications
or future enhancements as needed isolated to just CPUFreq framework
alone.

Here, we just move relevant code and documentation to make this part of
CPUFreq infrastructure.

Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-07 00:39:03 +02:00
Rajendra Nayak
38b248db60 ARM: dts: Add support for DRA72x family of devices
DRA722 is part of DRA72x family which are single core cortex A15 devices
with most infrastructure IPs otherwise same as whats on the DRA74x family.

So move the cpu nodes into dra74x.dtsi and dra72x.dtsi respectively.

Also add a minimal dra72-evm dts file.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: linux-doc@vger.kernel.org
Cc: devicetree@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
[tony@atomide.com: updated for Makefile sorting]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
George Cherian
08593fa6e4 doc: Add "ti,am437x-dwc3" comaptible for dwc3 glue
Add the compatible "ti,am437x-dwc3" for dwc3 glue driver.

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Thomas Huth
e029ae5b78 KVM: s390: Add clock comparator and CPU timer IRQ injection
Add an interface to inject clock comparator and CPU timer interrupts
into the guest. This is needed for handling the external interrupt
interception.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-05-06 14:58:05 +02:00
Dinh Nguyen
8cb289ed60 ARM: socfpga: dts: Add div-reg to the main_pll clocks
The mpu_clk, main_clk, and dbg_base_clk outputs from the main PLL go through a
pre-divider. Update socfpga.dtsi to represent those dividers for these
clocks.

Re-use the "div-reg" property that was used for the socfpga-gate-clock as this
is the same thing. Also update the documentation.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
2014-05-05 22:33:18 -05:00
Steffen Trumtrar
dd16fc4897 Documentation: dt: reset: move socfpga-reset
Instead of having the documentation for the socfpga-reset controller in a
vendor specific directory, move it to the reset folder to all the other
reset drivers.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
2014-05-05 22:33:17 -05:00
Steffen Trumtrar
75bb341908 Documentation: dt: socfpga: add reset-cells property
To be able to use the reset-controller framework, the property
        #reset-cells
is mandatory.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
2014-05-05 22:33:17 -05:00
Brian Austin
3bb40619ac ASoC: cs42l56: bindings: sound: Add bindings for CS42L56 CODEC
This patch adds binding documentation for the Cirrus Logic CS42L56 Low Power Stereo I2C CODEC

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-05 18:25:06 -07:00
Linus Torvalds
2080cee435 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) e1000e computes header length incorrectly wrt vlans, fix from Vlad
    Yasevich.

 2) ns_capable() check in sock_diag netlink code, from Andrew
    Lutomirski.

 3) Fix invalid queue pairs handling in virtio_net, from Amos Kong.

 4) Checksum offloading busted in sxgbe driver due to incorrect
    descriptor layout, fix from Byungho An.

 5) Fix build failure with SMC_DEBUG set to 2 or larger, from Zi Shen
    Lim.

 6) Fix uninitialized A and X registers in BPF interpreter, from Alexei
    Starovoitov.

 7) Fix arch dependencies of candence driver.

 8) Fix netlink capabilities checking tree-wide, from Eric W Biederman.

 9) Don't dump IFLA_VF_PORTS if netlink request didn't ask for it in
    IFLA_EXT_MASK, from David Gibson.

10) IPV6 FIB dump restart doesn't handle table changes that happen
    meanwhile, causing the code to loop forever or emit dups, fix from
    Kumar Sandararajan.

11) Memory leak on VF removal in bnx2x, from Yuval Mintz.

12) Bug fixes for new Altera TSE driver from Vince Bridgers.

13) Fix route lookup key in SCTP, from Xugeng Zhang.

14) Use BH blocking spinlocks in SLIP, as per a similar fix to CAN/SLCAN
    driver.  From Oliver Hartkopp.

15) TCP doesn't bump retransmit counters in some code paths, fix from
    Eric Dumazet.

16) Clamp delayed_ack in tcp_cubic to prevent theoretical divides by
    zero.  Fix from Liu Yu.

17) Fix locking imbalance in error paths of HHF packet scheduler, from
    John Fastabend.

18) Properly reference the transport module when vsock_core_init() runs,
    from Andy King.

19) Fix buffer overflow in cdc_ncm driver, from Bjørn Mork.

20) IP_ECN_decapsulate() doesn't see a correct SKB network header in
    ip_tunnel_rcv(), fix from Ying Cai.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
  net: macb: Fix race between HW and driver
  net: macb: Remove 'unlikely' optimization
  net: macb: Re-enable RX interrupt only when RX is done
  net: macb: Clear interrupt flags
  net: macb: Pass same size to DMA_UNMAP as used for DMA_MAP
  ip_tunnel: Set network header properly for IP_ECN_decapsulate()
  e1000e: Restrict MDIO Slow Mode workaround to relevant parts
  e1000e: Fix issue with link flap on 82579
  e1000e: Expand workaround for 10Mb HD throughput bug
  e1000e: Workaround for dropped packets in Gig/100 speeds on 82579
  net/mlx4_core: Don't issue PCIe speed/width checks for VFs
  net/mlx4_core: Load the Eth driver first
  net/mlx4_core: Fix slave id computation for single port VF
  net/mlx4_core: Adjust port number in qp_attach wrapper when detaching
  net: cdc_ncm: fix buffer overflow
  Altera TSE: ALTERA_TSE should depend on HAS_DMA
  vsock: Make transport the proto owner
  net: sched: lock imbalance in hhf qdisc
  net: mvmdio: Check for a valid interrupt instead of an error
  net phy: Check for aneg completion before setting state to PHY_RUNNING
  ...
2014-05-05 15:59:46 -07:00
Daniel Mack
7c2fcccc32 ASoC: sta350: add support for bits in miscellaneous registers
Add support for RPDNEN, NSHHPEN, BRIDGOFF, CPWMEN and PNDLSL, and add DT
bindings to access them.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-05 12:52:59 -07:00
Daniel Mack
09af62ff18 ASoC: sta350: fix DT bindings document
Fix a misleading property description, and denote the fact that
st,output-conf and st,ch*-output-mapping have to be passed as /bits/ 8.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-05 12:51:58 -07:00
Afzal Mohammed
27b7d5f3cc bus: omap_l3_noc: Add AM4372 interconnect error data
Add AM4372 information to handle L3 error.

AM4372 has two clk domains 100f and 200s. Provide flagmux and data
associated with it.

NOTE: Timeout doesn't have STDERRLOG_MAIN register. And per hardware
team, L3 timeout error cannot be cleared the normal way (by setting
bit 31 in STDERRLOG_MAIN), instead it may be required to do system
reset. L3 error handler can't help in such scenarios.

Hence indicate timeout target offset as L3_TARGET_NOT_SUPPORTED as
done for undocumented bits.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
2014-05-05 14:34:37 -05:00
Rajendra Nayak
53a848be0a bus: omap_l3_noc: Add DRA7 interconnect error data
DRA7 is distinctly different from OMAP4 in terms of masters and clock
domain organization. There two main clock domains which is divided as
follows:
     <0x44000000 0x1000000> is clk1 and clk2 is the sub clock domain
     <0x45000000 0x1000> is clk3

Add all the data needed to handle L3 error handling on DRA7 devices
and mark clk2 as subdomain and provide a compatible flag for
functionality. Other than the data difference the hardware blocks
involved are essentially the same.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: bugfixes and generic improvements, documentation]
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
2014-05-05 14:34:26 -05:00
Hans de Goede
36189cc3cd Input: elantech - fix touchpad initialization on Gigabyte U2442
The hw_version 3 Elantech touchpad on the Gigabyte U2442 does not accept
0x0b as initialization value for r10, this stand-alone version of the
driver: http://planet76.com/drivers/elantech/psmouse-elantech-v6.tar.bz2

Uses 0x03 which does work, so this means not setting bit 3 of r10 which
sets: "Enable Real H/W Resolution In Absolute mode"

Which will result in half the x and y resolution we get with that bit set,
so simply not setting it everywhere is not a solution. We've been unable to
find a way to identify touchpads where setting the bit will fail, so this
patch uses a dmi based blacklist for this.

https://bugzilla.kernel.org/show_bug.cgi?id=61151

Cc: stable@vger.kernel.org
Reported-by: Philipp Wolfer <ph.wolfer@gmail.com>
Tested-by: Philipp Wolfer <ph.wolfer@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-05-05 12:34:22 -07:00
Geert Uytterhoeven
c1e0cffddf dma: imx-sdma: Spelling s/determnine/determine/
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-05-05 15:37:49 +02:00
Ilya Dryomov
15a0b3fba4 doc: printk-formats: do not mention casts for u64/s64
Do not mention casts for u64/s64.  Complements commit 2a7930bd77fe
("Documentation/printk-formats.txt: No casts needed for u64/s64").

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-05-05 15:32:42 +02:00
Carlos Garcia
c98be0c96d doc: spelling error changes
Fixed multiple spelling errors.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Carlos E. Garcia <carlos@cgarcia.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-05-05 15:32:05 +02:00
Javier Martinez Canillas
2e33def033 dma-buf: update exp_name when using dma_buf_export()
commit c0b00a5 ("dma-buf: update debugfs output") modified the
default exporter name to be the KBUILD_MODNAME pre-processor
macro instead of __FILE__ but the documentation was not updated.

Also the "Supporting existing mmap interfaces in exporters" section
title seems wrong since talks about the interface used by importers.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-05-05 15:28:05 +02:00
Linus Torvalds
8a9f5ecd48 - vexpress platform clocks initialisation moved earlier following the
arm64 move of of_clk_init() call in a previous commit
 - Default DMA ops changed to non-coherent to preserve compatibility with
   32-bit ARM DT files. The "dma-coherent" property can be used to
   explicitly mark a device coherent. The Applied Micro DT file has been
   updated to avoid DMA cache maintenance for the X-Gene SATA controller
   (the only arm64 related driver with such assumption in -rc mainline)
 - Fixmap correction for earlyprintk
 - kern_addr_valid() fix for huge pages
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.9 (GNU/Linux)
 
 iQIcBAABAgAGBQJTZhiPAAoJEGvWsS0AyF7xGBUQAIthlCZGjq3yFh+P3YbZBbfh
 8HEg3xQIEunaUTMLxrZ9c32rHdOwWMivmaStb7XfIzYc6XIGGnFwk0VFnxlBtOS/
 yOw6khNy3d5b+R2yVVXJdOwGDvUJ7ZlZ4G35RbpFXqmHVOiT2JP5Pv/8hp/Ct3UE
 eBoLjLYkvrnBgZyjBafTjc+ExjtViMdACNUCZ+fPfvWVF2pWesB72P9/+QT4DZ4Q
 g+QXmtTviysFJPzi2LqVukPL5HzxrOcJql9F0lPEdCVypRHDQtNZfMf7aftZVRue
 8z6IaqgwQuOkHko50RFcrPF1AbEnQWbbA//Mfm1YaJLtlaUwgEXS8jryP4MVGM/s
 wjJD42tY80ysTFFiWjlqYx6wumtSjkZzLQIo7K+MjvleGaciRMsM5u2OyQJ6o8sR
 GMLButOfZj1GOFPE56Xn6R27MzONS1eiCFR99dsnPPwNlqGuY7KEacAHGYRfEe75
 g0Qwzj1sM6d+RHQKidWFRvvMQg5bxAENt1rpFJJ1cCge/jL2QqgbPhVPzMCM4nrW
 xGQzSKO+5L1CLtH4gRd7Jdyg7tUrRBFzC8HXk/o6moO+lOebKzCpq4tNiW/MOwPG
 sGCzmr2TpN6ImEjOhjYUByqa+XGUsz1n7d53Itkz8+pxsXhYHvd8iC1hOpNwakVM
 h/0rfXwD782k1N3S++MH
 =kRLA
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
 "These are mostly arm64 fixes with an additional arm(64) platform fix
  for the initialisation of vexpress clocks (the latter only affecting
  arm64; the arch/arm64 code is SoC agnostic and does not rely on early
  SoC-specific calls)

   - vexpress platform clocks initialisation moved earlier following the
     arm64 move of of_clk_init() call in a previous commit
   - Default DMA ops changed to non-coherent to preserve compatibility
     with 32-bit ARM DT files.  The "dma-coherent" property can be used
     to explicitly mark a device coherent.  The Applied Micro DT file
     has been updated to avoid DMA cache maintenance for the X-Gene SATA
     controller (the only arm64 related driver with such assumption in
     -rc mainline)
   - Fixmap correction for earlyprintk
   - kern_addr_valid() fix for huge pages"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  vexpress: Initialise the sysregs before setting up the clocks
  arm64: Mark the Applied Micro X-Gene SATA controller as DMA coherent
  arm64: Use bus notifiers to set per-device coherent DMA ops
  arm64: Make default dma_ops to be noncoherent
  arm64: fixmap: fix missing sub-page offset for earlyprintk
  arm64: Fix for the arm64 kern_addr_valid() function
2014-05-04 14:34:50 -07:00
Michael Kerrisk
2779ac167b timer_stats/doc: Fix /proc/timer_stats documentation
Documentation/timers/timer_stats.txt claims:

 "The readout of /proc/timer_stats automatically disables sampling. The sampled
  information is kept until a new sample period is started. This allows multiple
  readouts."

Some simple testing shows that reading from /proc/timer_stats
does not disable sampling. Looking back over past source code,
it appears that it never did.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Link: http://lkml.kernel.org/r/53636FB6.9060407@gmail.com
[ Small tidyup of the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-05-04 20:46:32 +02:00
Sebastian Reichel
3a8ab8af08 Documentation: HSI: Add some general description for the HSI subsystem
Add a document, which gives a rough introduction about what HSI
is and how its handled by the Linux kernel.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
2014-05-04 09:49:46 +02:00
Rob Herring
a48839509a dt/bindings: add binding for ARM Versatile character LCD
Add binding doc for Versatile platforms character LCD controller
interface.

Signed-off-by: Rob Herring <robh@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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-03 19:26:25 -04:00
Catalin Marinas
7a8d1ec16d arm64: Mark the Applied Micro X-Gene SATA controller as DMA coherent
Since the default DMA ops for arm64 are non-coherent, mark the X-Gene
controller explicitly as dma-coherent to avoid additional cache
maintenance.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Loc Ho <lho@apm.com>
2014-05-03 22:20:35 +01:00
Linus Torvalds
98facf0e1e Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
 "This update brings along:

   - Two fixes for long standing bugs in the hrtimer code, one which
     prevents remote enqueuing and the other preventing arbitrary delays
     after a interrupt hang was detected

   - A fix in the timer wheel which prevents math overflow

   - A fix for a long standing issue with the architected ARM timer
     related to the C3STOP mechanism.

   - A trivial compile fix for nspire SoC clocksource"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timer: Prevent overflow in apply_slack
  hrtimer: Prevent remote enqueue of leftmost timers
  hrtimer: Prevent all reprogramming if hang detected
  clocksource: nspire: Fix compiler warning
  clocksource: arch_arm_timer: Fix age-old arch timer C3STOP detection issue
2014-05-03 08:31:45 -07:00
Peter Meerwald
994265f180 iio: Add ABI documentation for illuminance
has been in use for a long time, but never documented;
state that this measurement should be in lux (drivers may feel
different about this)

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-03 11:45:26 +01:00
Peter Meerwald
065b055dce iio: Add intensity including ir and both modifiers to ABI documentation ex-post
intensity has been in use for a long time but never documented
it is beneficial to document what this is supposed to be

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-03 11:40:53 +01:00
Peter Meerwald
888c9c7366 iio: Add ABI documentation for object and ambient modifiers
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-05-03 11:36:52 +01:00
Thierry Reding
f9748ef13b gpio: Add missing device-managed documentation
Add the GPIO-related device-managed functions to the list of functions
in Documentation/driver-model/devres.txt.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-02 15:19:20 -07:00
Sebastian Reichel
d052a3d6a7 ASoC: omap: rx51: Add DT support
This patch adds device tree support to the Nokia N900 audio driver and
adds documentation for the DT binding.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-01 10:57:34 -07:00
Viresh Kumar
dec102aa9a cpufreq: Make linux-pm@vger.kernel.org official mailing list
There has been confusion all the time about which mailing list to follow
for cpufreq activities, linux-pm@vger.kernel.org or cpufreq@vger.kernel.org.

Since patches sent to cpufreq@vger.kernel.org don't go to Patchwork
which is a maintenance workflow problem, make linux-pm@vger.kernel.org
the official mailing list for cpufreq stuff and remove all references
of cpufreq@vger.kernel.org from kernel source.

Later, we can request that the list be dropped entirely.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-01 01:15:32 +02:00
H. Peter Anvin
3891a04aaf x86-64, espfix: Don't leak bits 31:16 of %esp returning to 16-bit stack
The IRET instruction, when returning to a 16-bit segment, only
restores the bottom 16 bits of the user space stack pointer.  This
causes some 16-bit software to break, but it also leaks kernel state
to user space.  We have a software workaround for that ("espfix") for
the 32-bit kernel, but it relies on a nonzero stack segment base which
is not available in 64-bit mode.

In checkin:

    b3b42ac2cbae x86-64, modify_ldt: Ban 16-bit segments on 64-bit kernels

we "solved" this by forbidding 16-bit segments on 64-bit kernels, with
the logic that 16-bit support is crippled on 64-bit kernels anyway (no
V86 support), but it turns out that people are doing stuff like
running old Win16 binaries under Wine and expect it to work.

This works around this by creating percpu "ministacks", each of which
is mapped 2^16 times 64K apart.  When we detect that the return SS is
on the LDT, we copy the IRET frame to the ministack and use the
relevant alias to return to userspace.  The ministacks are mapped
readonly, so if IRET faults we promote #GP to #DF which is an IST
vector and thus has its own stack; we then do the fixup in the #DF
handler.

(Making #GP an IST exception would make the msr_safe functions unsafe
in NMI/MC context, and quite possibly have other effects.)

Special thanks to:

- Andy Lutomirski, for the suggestion of using very small stack slots
  and copy (as opposed to map) the IRET frame there, and for the
  suggestion to mark them readonly and let the fault promote to #DF.
- Konrad Wilk for paravirt fixup and testing.
- Borislav Petkov for testing help and useful comments.

Reported-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1398816946-3351-1-git-send-email-hpa@linux.intel.com
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Andrew Lutomriski <amluto@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dirk Hohndel <dirk@hohndel.org>
Cc: Arjan van de Ven <arjan.van.de.ven@intel.com>
Cc: comex <comexk@gmail.com>
Cc: Alexander van Heukelum <heukelum@fastmail.fm>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: <stable@vger.kernel.org> # consider after upstream merge
2014-04-30 14:14:28 -07:00
Mark Salter
cdd7857898 doc: arm64: add description of EFI stub support
Add explanation of arm64 EFI stub and kernel image header changes
needed to masquerade as a PE/COFF application.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-04-30 19:57:05 +01:00
Leif Lindholm
e1977464e8 doc: arm: add UEFI support documentation
This patch provides documentation of the [U]EFI runtime service and
configuration features for the arm architecture.

Cc: Rob Landley <rob@landley.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-04-30 19:57:01 +01:00
Roy Franz
719e284369 doc: efi-stub.txt updates for ARM
Update efi-stub.txt documentation to be more general
and not x86 specific.  Add ARM only "dtb=" command
line option description.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-04-30 19:49:41 +01:00
Ivan T. Ivanov
01799b6222 usb: phy: msm: Vote for corner of VDD CX instead of voltage of VDD CX
New platform uses RBCPR hardware feature, with that voting for
absolute voltage of VDD CX is not required. Hence vote for corner of
VDD CX which uses nominal corner voltage on VDD CX.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Cc: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:29:58 -05:00
Ivan T. Ivanov
cfa3ff5dfe usb: phy: msm: Add support for secondary PHY control
Allow support to use 2nd HSPHY with USB2 Core.
Some platforms may have configuration to allow USB controller
work with any of the two HSPHYs present. By default driver
configures USB core to use primary HSPHY. Add support to allow
user select 2nd HSPHY using DT parameter.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Cc: Manu Gautam <mgautam@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:45 -05:00
Ivan T. Ivanov
8364f9af23 usb: phy: msm: Add device tree support and binding information
Allows controller to be specified via device tree.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-04-30 11:28:44 -05:00
Linus Torvalds
71dc96e39d sound fixes for 3.15-rc4
A few collections of small eggs that have been gathered during
 the Easter holidays.  Mostly small ASoC fixes, with a HD-audio
 quirk and a workaround for Nvidia controller.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJTYNGHAAoJEGwxgFQ9KSmk7QoP/iOz8zLZWhXLvZkiy4MrDePw
 YmfTY3TG32A0anO4gp/dVrTOPW3VROOgu3dhvHoltNjsUsQ9x8x+/Zik7qyIO5X3
 ZAuSwVuOAmvksqkUHWlstqWNHN0ZDAPivjAB1gJdnSTdeFVDWeOwLGwwDSnYDjSE
 N8hv6xrlBT7KoBWzCuP5u1q0EU4dbsUcXAo7gYsekfrfV5OnTrdeWBCmCFvYTc9X
 z+dpH6v+L6OWQEWXuR6DcE2SyHXDWV0Jo1UVSFI59HhssRtmMYNZVxmqGuGgWzOp
 RWcXfKhBUCsrnsZoQcgxd2CtVXMhkmogmwv7mrRtIcEfmqgA5eLt47qKnDO0+9or
 Rp4X2VLCu+ZbskKuTyjxwaxskoupRRRrE/A+yxDmT06hil4dev38BEigN6xUA54d
 vVbiVZtknN+pp0/J+otpOfg+yvPHep0YKJTu+bUJxvxCLwM+VEIP0Q/eW9CHfJIZ
 b4ZZXaVCs20o36TJ9Gdr+zkWcwTOESxgyV8z50P5eMMYR9fExy+yU2OqIh6+hLkW
 x2S2a6Scko0+eRB3WsA53hYlHC5I0qT2eQ8qjEP3WFbA1x+RLaGpDNtmstAwkq2K
 t0xVlxPJvUj2sU1X0/ykloZTLGOxldP27RizknkdaWcl9abz6ofXsp4p0x1sXGf8
 PJOkoer5BM077IySnboF
 =M31u
 -----END PGP SIGNATURE-----

Merge tag 'sound-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A few collections of small eggs that have been gathered during the
  Easter holidays.  Mostly small ASoC fixes, with a HD-audio quirk and a
  workaround for Nvidia controller"

* tag 'sound-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Suppress CORBRP clear on Nvidia controller chips
  ALSA: hda - add headset mic detect quirk for a Dell laptop
  ASoC: jz4740: Remove Makefile entry for removed file
  ASoC: Intel: Fix audio crash due to negative address offset
  ASoC: dapm: Fix widget double free with auto-disable DAPM kcontrol
  ASoC: Intel: Fix incorrect sizeof() in sst_hsw_stream_get_volume()
  ASoC: Intel: some incorrect sizeof() usages
  ASoC: cs42l73: Convert to use devm_gpio_request_one
  ASoC: cs42l52: Convert to use devm_gpio_request_one
  ASoC: tlv320aic31xx: document that the regulators are mandatory
  ASoC: fsl_spdif: Fix wrong OFFSET of STC_SYSCLK_DIV
  ASoC: alc5623: Fix regmap endianness
  ASoC: tlv320aic3x: fix shared reset pin for DT
  ASoC: rsnd: fix clock prepare/unprepare
2014-04-30 08:15:59 -07:00
Anup Patel
8ad6b63492 KVM: Add KVM_EXIT_SYSTEM_EVENT to user space API header
Currently, we don't have an exit reason to notify user space about
a system-level event (for e.g. system reset or shutdown) triggered
by the VCPU. This patch adds exit reason KVM_EXIT_SYSTEM_EVENT for
this purpose. We can also inform user space about the 'type' and
architecture specific 'flags' of a system-level event using the
kvm_run structure.

This newly added KVM_EXIT_SYSTEM_EVENT will be used by KVM ARM/ARM64
in-kernel PSCI v0.2 support to reset/shutdown VMs.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2014-04-30 04:18:58 -07:00
Anup Patel
50bb0c9475 KVM: Documentation: Add info regarding KVM_ARM_VCPU_PSCI_0_2 feature
We have in-kernel emulation of PSCI v0.2 in KVM ARM/ARM64. To provide
PSCI v0.2 interface to VCPUs, we have to enable KVM_ARM_VCPU_PSCI_0_2
feature when doing KVM_ARM_VCPU_INIT ioctl.

The patch updates documentation of KVM_ARM_VCPU_INIT ioctl to provide
info regarding KVM_ARM_VCPU_PSCI_0_2 feature.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2014-04-30 04:18:57 -07:00
Alexander Shiyan
780aaeff96 ASoC: mc13783: Add devicetree support
This patch adds devicetree support for mc13783-codec.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-29 15:24:54 -07:00
Stratos Karafotis
27e289dce2 cpufreq: Introduce macros for cpufreq_frequency_table iteration
Many cpufreq drivers need to iterate over the cpufreq_frequency_table
for various tasks.

This patch introduces two macros which can be used for iteration over
cpufreq_frequency_table keeping a common coding style across drivers:

- cpufreq_for_each_entry: iterate over each entry of the table
- cpufreq_for_each_valid_entry: iterate over each entry that contains
a valid frequency.

It should have no functional changes.

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-30 00:05:31 +02:00
Srinivas Pandruvada
b4a2d475ae iio: Added ABI description for quaternion
Added documentation for reading quaternion components for 3D rotations.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-04-29 22:12:49 +01:00