Commit Graph

30106 Commits

Author SHA1 Message Date
Sergio Prado d5cc7c80ba dt-bindings: mmc: add DT binding for S3C24XX MMC/SD/SDIO controller
Adds the device tree bindings description for Samsung S3C24XX
MMC/SD/SDIO controller, used as a connectivity interface with external
MMC, SD and SDIO storage mediums.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sergio Prado <sergio.prado@e-labworks.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:41:59 +02:00
Piotr Sroka 6f4b091902 dt-bindings: mmc: add description of PHY delays for sdhci-cadence
DTS properties are used instead of fixed data
because PHY settings can be different for different chips/boards.
Add description of new DLL PHY delays.

Signed-off-by: Piotr Sroka <piotrs@cadence.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:41:54 +02:00
yong mao 50fde5637b mmc: dt-bindings: update Mediatek MMC bindings
Add description for mediatek,hs200-cmd-int-delay
Add description for mediatek,hs400-cmd-int-delay
Add description for mediatek,hs400-cmd-resp-sel-rising

Signed-off-by: Yong Mao <yong.mao@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:41:43 +02:00
Chris Brandt 474e25e15f mmc: sh_mmcif: Document r7s72100 DT bindings
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:41:41 +02:00
Eric Anholt ebdb4d8e0d dt-bindings: Add binding for brcm,bcm2835-sdhost.
This is the other SD controller on the platform, which can be swapped
to the role of SD card host using pin muxing.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:41:24 +02:00
Thierry Reding e8ce6742f8 dt-bindings: mmc: tegra: Document Tegra186 compatible string
The SDHCI controller found on Tegra186 in very similar to the controller
found on earlier generations of Tegra.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:41:22 +02:00
Thierry Reding 4166b3036e dt-bindings: mmc: tegra: Reformat compatible string list
The list of compatible strings is somewhat difficult to read and extend.
Reformat it into a list to make it more easily extensible.

While at it, also remove the "plus one of the above" clause because it
isn't actually valid.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24 21:41:21 +02:00
Lorenzo Pieralisi 490cb6ddb1 PCI: Implement devm_pci_remap_cfgspace()
The introduction of the pci_remap_cfgspace() interface allows PCI host
controller drivers to map PCI config space through a dedicated kernel
interface. Current PCI host controller drivers use the devm_ioremap_*()
devres interfaces to map PCI configuration space regions so in order to
update them to the new pci_remap_cfgspace() mapping interface a new set of
devres interfaces should be implemented so that PCI host controller drivers
can make use of them.

Introduce two new functions in the PCI kernel layer and Devres
documentation:

- devm_pci_remap_cfgspace()
- devm_pci_remap_cfg_resource()

so that PCI host controller drivers can make use of them to map PCI
configuration space regions.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
2017-04-24 13:53:13 -05:00
Wei Wang cf1ef3f071 net/tcp_fastopen: Disable active side TFO in certain scenarios
Middlebox firewall issues can potentially cause server's data being
blackholed after a successful 3WHS using TFO. Following are the related
reports from Apple:
https://www.nanog.org/sites/default/files/Paasch_Network_Support.pdf
Slide 31 identifies an issue where the client ACK to the server's data
sent during a TFO'd handshake is dropped.
C ---> syn-data ---> S
C <--- syn/ack ----- S
C (accept & write)
C <---- data ------- S
C ----- ACK -> X     S
		[retry and timeout]

https://www.ietf.org/proceedings/94/slides/slides-94-tcpm-13.pdf
Slide 5 shows a similar situation that the server's data gets dropped
after 3WHS.
C ---- syn-data ---> S
C <--- syn/ack ----- S
C ---- ack --------> S
S (accept & write)
C?  X <- data ------ S
		[retry and timeout]

This is the worst failure b/c the client can not detect such behavior to
mitigate the situation (such as disabling TFO). Failing to proceed, the
application (e.g., SSL library) may simply timeout and retry with TFO
again, and the process repeats indefinitely.

The proposed solution is to disable active TFO globally under the
following circumstances:
1. client side TFO socket detects out of order FIN
2. client side TFO socket receives out of order RST

We disable active side TFO globally for 1hr at first. Then if it
happens again, we disable it for 2h, then 4h, 8h, ...
And we reset the timeout to 1hr if a client side TFO sockets not opened
on loopback has successfully received data segs from server.
And we examine this condition during close().

The rational behind it is that when such firewall issue happens,
application running on the client should eventually close the socket as
it is not able to get the data it is expecting. Or application running
on the server should close the socket as it is not able to receive any
response from client.
In both cases, out of order FIN or RST will get received on the client
given that the firewall will not block them as no data are in those
frames.
And we want to disable active TFO globally as it helps if the middle box
is very close to the client and most of the connections are likely to
fail.

Also, add a debug sysctl:
  tcp_fastopen_blackhole_detect_timeout_sec:
    the initial timeout to use when firewall blackhole issue happens.
    This can be set and read.
    When setting it to 0, it means to disable the active disable logic.

Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24 14:27:17 -04:00
Roger Quadros 69226896ad mdio_bus: Issue GPIO RESET to PHYs.
Some boards [1] leave the PHYs at an invalid state
during system power-up or reset thus causing unreliability
issues with the PHY which manifests as PHY not being detected
or link not functional. To fix this, these PHYs need to be RESET
via a GPIO connected to the PHY's RESET pin.

Some boards have a single GPIO controlling the PHY RESET pin of all
PHYs on the bus whereas some others have separate GPIOs controlling
individual PHY RESETs.

In both cases, the RESET de-assertion cannot be done in the PHY driver
as the PHY will not probe till its reset is de-asserted.
So do the RESET de-assertion in the MDIO bus driver.

[1] - am572x-idk, am571x-idk, a437x-idk

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24 12:40:24 -04:00
Colin Ian King 5e5535213f ARM: at91/at91-pinctrl documentation: fix spelling mistake: "contoller" -> "controller"
trivial fix to spelling mistake in documentation

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 18:32:56 +02:00
Anders Darander fa2f60ffa0 gpio: DT bindings, move tca9554 from pcf857x to pca953x
The TCA9554 is similar to the PCA9554. Update the DT binding docs.

Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 18:30:26 +02:00
Mikulas Patocka 9d609f85b7 dm integrity: support larger block sizes
The DM integrity block size can now be 512, 1k, 2k or 4k.  Using larger
blocks reduces metadata handling overhead.  The block size can be
configured at table load time using the "block_size:<value>" option;
where <value> is expressed in bytes (defult is still 512 bytes).

It is safe to use larger block sizes with DM integrity, because the
DM integrity journal makes sure that the whole block is updated
atomically even if the underlying device doesn't support atomic writes
of that size (e.g. 4k block ontop of a 512b device).

Depends-on: 2859323e ("block: fix blk_integrity_register to use template's interval_exp if not 0")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-04-24 12:04:33 -04:00
Mikulas Patocka 56b67a4f29 dm integrity: various small changes and cleanups
Some coding style changes.

Fix a bug that the array test_tag has insufficient size if the digest
size of internal has is bigger than the tag size.

The function __fls is undefined for zero argument, this patch fixes
undefined behavior if the user sets zero interleave_sectors.

Fix the limit of optional arguments to 8.

Don't allocate crypt_data on the stack to avoid a BUG with debug kernel.

Rename all optional argument names to have underscores rather than
dashes.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2017-04-24 12:04:32 -04:00
Michael Ellerman 9fc849144c Merge branch 'topic/kprobes' into next
Although most of these kprobes patches are powerpc specific, there's a couple
that touch generic code (with Acks). At the moment there's one conflict with
acme's tree, but it's not too bad. Still just in case some other conflicts show
up, we've put these in a topic branch so another tree could merge some or all of
it if necessary.
2017-04-25 00:24:04 +10:00
Nandor Han 42fcb203e3 gpio: Add XRA1403 DTS binding documentation
Add the XRA1403 DTS binding documentation.

Signed-off-by: Nandor Han <nandor.han@ge.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 15:48:30 +02:00
Nandor Han 7b7df5204d dt-bindings: add exar to vendor prefixes list
Add Exar Corporation to vendors list.

Signed-off-by: Nandor Han <nandor.han@ge.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 15:18:42 +02:00
Andrew Jeffery 9d7163f516 gpio: aspeed: dt: Add optional clocks property
We need a reference to the HPLL to calculate debounce cycles. If the
clocks property is not supplied in the GPIO node then the consumer
should deny any debounce requests.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:46:55 +02:00
Andrew Jeffery cea956551f gpio: aspeed: dt: Fix description alignment in bindings document
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:46:01 +02:00
Andrew Jeffery 6de2185bc7 pinctrl: aspeed: Document pinconf in devicetree bindings
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:41:58 +02:00
Alexandre TORGUE 94bfc9be6d pinctrl: Add st,stm32f469-pinctrl compatible to stm32-pinctrl
Add new compatible for stm32f469 MCU.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:28:58 +02:00
Alexandre TORGUE 269fcf3666 Documentation: dt: Remove ngpios from stm32-pinctrl binding
Remove "ngpios" bindings definition as it is no more used in stm32 pinctrl
driver.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:24:17 +02:00
Gregory CLEMENT f13980e408 pinctrl: dt-bindings: Add documentation for Armada 37xx pin controllers
Document the device tree binding for the pin controllers found on the
Armada 37xx SoCs.

Update the binding documention of the xtal clk which is a subnode of this
syscon node.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
[Fixed gpios node]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 11:28:09 +02:00
Andrew Lunn 757642f9a5 gpio: mvebu: Add limited PWM support
Armada 370/XP devices can 'blink' GPIO lines with a configurable on
and off period. This can be modelled as a PWM.

However, there are only two sets of PWM configuration registers for
all the GPIO lines. This driver simply allows a single GPIO line per
GPIO chip of 32 lines to be used as a PWM. Attempts to use more return
EBUSY.

Due to the interleaving of registers it is not simple to separate the
PWM driver from the GPIO driver. Thus the GPIO driver has been
extended with a PWM driver.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
URL: https://patchwork.ozlabs.org/patch/427287/
URL: https://patchwork.ozlabs.org/patch/427295/
[Ralph Sennhauser:
  * Port forward
  * Merge PWM portion into gpio-mvebu.c
  * Switch to atomic PWM API
  * Add new compatible string marvell,armada-370-xp-gpio
  * Update and merge documentation patch
  * Update MAINTAINERS]
Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 11:16:25 +02:00
Naveen N. Rao ead514d5fb powerpc/kprobes: Add support for KPROBES_ON_FTRACE
Allow kprobes to be placed on ftrace _mcount() call sites. This optimization
avoids the use of a trap, by riding on ftrace infrastructure.

This depends on HAVE_DYNAMIC_FTRACE_WITH_REGS which depends on MPROFILE_KERNEL,
which is only currently enabled on powerpc64le with newer toolchains.

Based on the x86 code by Masami.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-24 19:07:58 +10:00
Alexei Starovoitov e2989ee974 bpf, doc: update list of architectures that do eBPF JIT
update the list and remove 'in the future' statement,
since all still alive 64-bit architectures now do eBPF JIT.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-23 15:56:48 -04:00
Ingo Molnar 58d30c36d4 Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:

 - Documentation updates.

 - Miscellaneous fixes.

 - Parallelize SRCU callback handling (plus overlapping patches).

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-23 11:12:44 +02:00
David S. Miller fb796707d7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Both conflict were simple overlapping changes.

In the kaweth case, Eric Dumazet's skb_cow() bug fix overlapped the
conversion of the driver in net-next to use in-netdev stats.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21 20:23:53 -07:00
David S. Miller 69e3948aaa NFC 4.12 pull request
This is the NFC pull request for 4.12. We have:
 
 - Improvements for the pn533 command queue handling and device
   registration order.
 - Removal of platform data for the pn544 and st21nfca drivers.
 - Additional device tree options to support more trf7970a hardware options.
 - Support for Sony's RC-S380P through the port100 driver.
 - Removal of the obsolte nfcwilink driver.
 - Headers inclusion cleanups (miscdevice.h, unaligned.h) for many drivers.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJY8//bAAoJEIqAPN1PVmxKYVsP/0d9V98WuvBiyNffRwNLbol1
 w37Er17cIma4Tzrm9jWzwGFCAd4k5Bn3K6rEXejsnSCkvSPZaRvlsd9itpmxmYhs
 SkWPl9IoPi9wWrHkr20p34n1OdZdqx+R6CtKNB4B7t7EASWlZ6BMl4RgeO03QckA
 FHZSGszOWMr9OF/+ZLBJm66JlNTkNiaumjFXeayXEzkv2JhnZqxdLqR8117Ycwa1
 MvSYzvcOAV1OWlaiyc3VzyF49D3DcxweC4lgx3JkQ1CPzcIIgPYaws1QGLraSwUT
 JSVWn3P0WFM8sPJEGDa7XKjVPfy7mW2wgQ2oJVZJR5TOygyonkNuTK2ohEXp0SUI
 xzH/qbQmvKb/VbwdXWj4N7rnfpdry/C52S5+nn/pLV6Y2S7LF4FGvUMWUQmh2uu3
 kw2SQqEHLcbHnDz3G50UfTJ9mH1CVP8a4HsM39Wtm79H3IVmnS2+owm/wdSrqq6h
 5i/nL7L/6XDj+yg+2th1BdHxhA6F7aTDxxFpgF25K+y79tm2Fvnic6pQBfwRTpvv
 FfvTMpJAdC9OkLppNb3PLUT+YnSN1YgH7Hgv6rFc/KiVJ4rMFMXV1EaWdzWWuRd5
 U8Obl1Nag2SmSSVrRAr56yfltkJlhqcoLk01Go3d/qYF4GO7LFrmSoODH0L0JDaE
 mH/vYF47mkFvWicF950v
 =Zy1M
 -----END PGP SIGNATURE-----

Merge tag 'nfc-next-4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next

Samuel Ortiz says:

====================
NFC 4.12 pull request

This is the NFC pull request for 4.12. We have:

- Improvements for the pn533 command queue handling and device
  registration order.
- Removal of platform data for the pn544 and st21nfca drivers.
- Additional device tree options to support more trf7970a hardware options.
- Support for Sony's RC-S380P through the port100 driver.
- Removal of the obsolte nfcwilink driver.
- Headers inclusion cleanups (miscdevice.h, unaligned.h) for many drivers.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21 15:29:40 -04:00
Sylwester Nawrocki 92c9f05ebc ASoC: Add Odroid sound DT bindings documentation
This patch adds DT binding documentation for Odroid XU3/4
sound subsystem.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-21 18:27:58 +01:00
Matthew Whitehead 7acf8a1e8a Replace 2 jiffies with sysctl netdev_budget_usecs to enable softirq tuning
Constants used for tuning are generally a bad idea, especially as hardware
changes over time. Replace the constant 2 jiffies with sysctl variable
netdev_budget_usecs to enable sysadmins to tune the softirq processing.
Also document the variable.

For example, a very fast machine might tune this to 1000 microseconds,
while my regression testing 486DX-25 needs it to be 4000 microseconds on
a nearly idle network to prevent time_squeeze from being incremented.

Version 2: changed jiffies to microseconds for predictable units.

Signed-off-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21 13:22:34 -04:00
Charles Keepax 06bdf385f6 ASoC: cs35l35: Allow user to configure IMON SCALE
On the chip the IMON signal is a full 24-bits however normally only
some of the bits will be sent over the bus. The chip provides a field
to select which bits of the IMON will be sent back, this is the only
feedback signal that has this feature.

Add an additional entry to the cirrus,imon device tree property to
allow the IMON scale parameter to be passed.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Brian Austin <brian.austin@cirrus.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-21 18:01:38 +01:00
Linus Torvalds fe7ba28933 pci-v4.11-fixes-5
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJY+jDWAAoJEFmIoMA60/r8QA0QALF2maWciwCps10R1rSMJOxn
 MIZbc5nXlgcI8jEnla05x5qGa/QSUmkq0zRF/RW4RbdshN1OZABlrcc4NFyJ50oL
 ARo7KBlXyDmWUBcXOKZsMMGsxLHexUl6BUoctedkUR83tfSoS36BA+DFvGZsyHAJ
 D3Nq/67VR+xR8OoZgXyd7pRirvVW0x6o2RbYXFV7au8p7ds13BWo3Xxwtn/2h+3p
 ybrdmEUFY9DGkLtULrHIWvcPK9LDBAU0uVU3pAzp6Ss6noVDLQH8d4+tyuUB5aIm
 /CGPDc9N89YWv4yyqVdvsPVJXbBg17byhO2kgKYrlNmt6Q/PFwMf4/cF1EWvgt/K
 eIWfNtTSVVa57Seb7B+AKN/leIwT++C19ZJvBWFtJVK+VCpmlsc5vtR0K2beIBI7
 p6lW5PbqlttfoQphKSnJy4Gf/2B+6jft+nzOydfei2Olnjsr4kkwSC9/UWBKbXiS
 Q/6S7clz3bBiPb8IxQArtaGzemPvsB7Gy55stTWXq3ux3IVLbpmzGspZBa30gKq8
 9H0bjPjY5c0gMGcvoCmd7+fZ4ZTqIsBWMQB/0O/iAZv4d42/BZS70khbRC7gXZ4c
 O3MVRyUL9ADx2Jysoy0Yg+Q//hB6t7xOZWMQRqmoMGxO2PtFgrObg0SwNrEW+K0b
 BFsHfZykauzjCOPZmeFx
 =qqfj
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.11-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fix from Bjorn Helgaas:
 "Sorry this is so late. It's been in -next for over a week, but I
  forgot to send it on until now.

  A single fix to the DT binding of the HiSilicon PCIe host support"

* tag 'pci-v4.11-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: hisi: Fix DT binding (hisi-pcie-almost-ecam)
2017-04-21 09:26:34 -07:00
Dong Aisheng 0e69c2eceb regulator: anatop: make regulator name property required
We actually can't allow the missing of the regualor name, thus update
the binding doc to make regulator-name property to be required.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-21 16:18:04 +01:00
Martin Kaiser 1e9caa2a3b dt-bindings: display: imx: entry for AUS mode
Allow setting AUS mode for a display from the device tree. Use an
optional boolean property. AUS mode can be set only on imx21 and
compatible chipsets.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-04-21 16:47:11 +02:00
Paul E. McKenney f2094107ac Merge branches 'doc.2017.04.12a', 'fixes.2017.04.19a' and 'srcu.2017.04.21a' into HEAD
doc.2017.04.12a: Documentation updates
fixes.2017.04.19a: Miscellaneous fixes
srcu.2017.04.21a: Parallelize SRCU callback handling
2017-04-21 06:00:13 -07:00
Sean Wang c2b06bcd4b dt-bindings: hwrng: Add Mediatek hardware random generator bindings
Document the devicetree bindings for Mediatek random number
generator which could be found on MT7623 SoC or other similar
Mediatek SoCs.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-04-21 20:30:55 +08:00
Michael S. Tsirkin 668fffa3f8 kvm: better MWAIT emulation for guests
Guests that are heavy on futexes end up IPI'ing each other a lot. That
can lead to significant slowdowns and latency increase for those guests
when running within KVM.

If only a single guest is needed on a host, we have a lot of spare host
CPU time we can throw at the problem. Modern CPUs implement a feature
called "MWAIT" which allows guests to wake up sleeping remote CPUs without
an IPI - thus without an exit - at the expense of never going out of guest
context.

The decision whether this is something sensible to use should be up to the
VM admin, so to user space. We can however allow MWAIT execution on systems
that support it properly hardware wise.

This patch adds a CAP to user space and a KVM cpuid leaf to indicate
availability of native MWAIT execution. With that enabled, the worst a
guest can do is waste as many cycles as a "jmp ." would do, so it's not
a privilege problem.

We consciously do *not* expose the feature in our CPUID bitmap, as most
people will want to benefit from sleeping vCPUs to allow for over commit.

Reported-by: "Gabriel L. Somlo" <gsomlo@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
[agraf: fix amd, change commit message]
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-04-21 12:50:28 +02:00
Herton R. Krzesinski 6e91b74d56 Documentation: allow installing man pages to a user defined directory
Documentation/DocBook/Makefile hard codes the prefixed path to which you
can install the built man pages (/usr/local prefix). That's unfortunate
since the user may want to install to another prefix or location (for
example, a distribution packaging the man pages may want to install to a
random temporary location in the build process).

Be flexible and allow the prefixed path to which we install man pages to be
changed with the INSTALL_MAN_PATH environment variable (and use the same
default as other similar variables like INSTALL_HDR_PATH).

Signed-off-by: Herton R. Krzesinski <herton@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 15:42:26 -06:00
Jacob Pan d73350568c Doc/PM: Sync with intel_powerclamp code behavior
Commit feb6cd6a0f ("thermal/intel_powerclamp: stop sched tick in forced
idle") changed how idle injection accouting, so we need to update
the documentation accordingly.

This patch also expands more details on the behavior of cur_state.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reported-by: Wang, Xiaolong <xiaolong.wang@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 15:35:03 -06:00
Mauro Carvalho Chehab 50c28f803a zr364xx.rst: usb/devices is now at /sys/kernel/debug/
The /proc/bus/usb/devices got moved to sysfs. It is now
sitting at:
	/sys/kernel/debug/usb/devices

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 15:31:45 -06:00
Mauro Carvalho Chehab 96801b35f0 usb.rst: move documentation from proc_usb_info.txt to USB ReST book
The contents of proc_usb_info.txt complements what's there at
driver-api usb book. Yet, it is outdated, as it still refers
to the USB character devices as usbfs.

So, move the contents to usb.rst, adjusting it to point to
the right places.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 15:31:26 -06:00
Mauro Carvalho Chehab 9b06f75413 convert philips.txt to ReST and add to media docs
The philips.txt file were at the wrong place: it should be,
instead, at Documentation/media.

Move and convert it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 15:31:07 -06:00
Mauro Carvalho Chehab 8a6a285d61 docs-rst: usb: update old usbfs-related documentation
There's no usbfs anymore. The old features are now either
exported to /dev/bus/usb or via debugfs.

Update documentation accordingly, pointing to the new
places where the character devices and usb/devices are
now placed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 15:30:33 -06:00
Tobias Klauser 09eb03f059 fpga: region: add missing DT documentation for config complete timeout
Commit 42d5ec9547 ("fpga: add config complete timeout") introduced the
config complete property but didn't include the corresponding DT binding
documentation. Add it now.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-04-20 15:14:24 -05:00
Perr Zhang 7c2a3e9448 arm: Documentation: update a path name
the path in the example cmd is out of date, and the path for now
is also mentioned in the same file

Signed-off-by: Perr Zhang <strongbox8@zoho.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 14:06:55 -06:00
Andrew Clayton 9b9355a269 docs: process/4.Coding.rst: Fix a couple of document refs
In Documentation/process/4.Coding.rst there were a couple of paragraphs
that spilled over the 80 character line length. This was likely caused
when the document was converted to reStructuredText. Re-flow the
paragraphs and make the document references proper reStructuredText
:ref: links.

This also adds the appropriate reStructuredText file heading to
kernel-parameters.rst as referenced by the kernel-parameters link in
this patch.

Signed-off-by: Andrew Clayton <andrew@digital-domain.net>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-20 13:56:17 -06:00
Christoph Hellwig 6d22323b2e nfs: remove the objlayout driver
The objlayout code has been in the tree, but it's been unmaintained and
no server product for it actually ever shipped.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2017-04-20 15:51:23 -04:00
Niklas Cassel fada43ccc8 bindings: net: stmmac: add missing note about LPI interrupt
The hardware has a LPI interrupt.
There is already code in the stmmac driver to parse and handle the
interrupt. However, this information was missing from the DT binding.

At the same time, improve the description of the existing interrupts.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-By: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 15:29:46 -04:00
David S. Miller 028f43bc64 My last pull request has been a while, we now have:
* connection quality monitoring with multiple thresholds
  * support for FILS shared key authentication offload
  * pre-CAC regulatory compliance - only ETSI allows this
  * sanity check for some rate confusion that hit ChromeOS
    (but nobody else uses it, evidently)
  * some documentation updates
  * lots of cleanups
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEExu3sM/nZ1eRSfR9Ha3t4Rpy0AB0FAlj12HMACgkQa3t4Rpy0
 AB0ztBAAi0tH9xR/7iYgChyZV4S8PpYKo2QoQZofG8vzAztboqI4clAxbWEOsJHh
 qddjm+foiHVJtZj2LqxjDcaxk69VIh/ERSlR7ve7GCzz9WAAWBMHZop2eArHvgI1
 pqP4mQEZ7QISVo88H3LeRdj8NmTwfZYH8u8e2CN3yEpSh1PPrU+slaXRLrjB4uql
 XWwwJYQatgDw6Dj4vTIk++DqGo7OhK6CrC1gZLnyOtitTiPzRtfj8rdRHeRKdlj4
 wOkUaenjs5r9KsofNYZpzckHp2NEpgIruqCsNdRGHf14EWBC5Q1N35OUOecyQ67T
 3VeSnHxU4qjomkXgwqmDKFFOdqtqIruor3YDdO1iwO2TNF+JlNfq5AqUNec/XjUv
 VDmj1NRZE0ftJtCkDFm1Q/ABfVDH9i2O6ZBs6a3zb65lA83q1y4xlF48LqDzG3qi
 fNnfRO2rOOiyosF3HEkF5u1mfD6MRUtZAc2ZiHckGUpAngs5QOWKqtVgcgWjmbFW
 qDTKsFYi2YpGXZAnUjqS4ZtmcgRGEXqg1STJBt4cA8cnmI9Ka5GplACVhqzGeneH
 EYMESEct9BOpR6BjABmbZL09NtCkiTPYjiL4V//USr4f6NFhOeHHMYuxYFYIEgC6
 ldRjf4EUzZw0QJ8X6L+zxYI5m40fEJ7bGhlIdMo7fWXpRpCaF1Y=
 =f4VT
 -----END PGP SIGNATURE-----

Merge tag 'mac80211-next-for-davem-2017-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
My last pull request has been a while, we now have:
 * connection quality monitoring with multiple thresholds
 * support for FILS shared key authentication offload
 * pre-CAC regulatory compliance - only ETSI allows this
 * sanity check for some rate confusion that hit ChromeOS
   (but nobody else uses it, evidently)
 * some documentation updates
 * lots of cleanups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 13:54:40 -04:00
Juergen Beisert dc70058315 net: dsa: LAN9303: add MDIO managed mode support
When the LAN9303 device is in MDIO manged mode, all register accesses must
be done via MDIO.

Please note: this code is compile time tested only due to the absence of such
configured hardware. It is based on a patch from Stefan Roese from 2014.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
CC: devicetree@vger.kernel.org
CC: robh+dt@kernel.org
CC: mark.rutland@arm.com
CC: sr@denx.de
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 13:48:55 -04:00
Juergen Beisert be4e119f99 net: dsa: LAN9303: add I2C managed mode support
In this mode the switch device and the internal phys will be managed via
I2C interface. The MDIO interface is still supported, but for the
(emulated) CPU port only.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
CC: devicetree@vger.kernel.org
CC: robh+dt@kernel.org
CC: mark.rutland@arm.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20 13:48:54 -04:00
Martin Kepplinger 1613976bbd dt-bindings: input: add bindings document for ar1021_i2c driver
Add a simple binding document describing the supported devices and the
I2C bus address.

Signed-off-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-20 10:47:28 -07:00
Rahul Bedarkar cd81abdfd4 dt-bindings: input: rotary-encoder: fix typo
s/rollove/rollover/

Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-20 10:47:27 -07:00
Viresh Kumar 6a611d149a ARM: dts: exynos: Use - instead of @ for DT OPP entries
Compiling the DT file with W=1, DTC warns like follows:

Warning (unit_address_vs_reg): Node /opp_table0/opp@1000000000 has a
unit name, but no reg property

Fix this by replacing '@' with '-' as the OPP nodes will never have a
"reg" property.

Reported-by: Krzysztof Kozlowski <krzk@kernel.org>
Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
[k.kozlowski: Split patch per ARM and ARM64]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-04-20 18:06:03 +02:00
Vishwanathapura, Niranjana c73690ca16 IB/opa-vnic: Virtual Network Interface Controller (VNIC) documentation
Add OPA VNIC design document explaining the VNIC architecture and the
driver design.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-04-20 12:01:06 -04:00
Marek Vasut 6b12e71dd4 of: Add vendor prefix for ROHM Semiconductor
ROHM Semiconductor Co., Ltd. offer PMICs, touchscreen controllers etc.
http://www.rohm.com/web/global/

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-04-20 09:07:10 -05:00
Thomas Gleixner 7a258ff04f Merge branch 'linus' into irq/core
Pick up upstream fixes to avoid conflicts with pending patches.
2017-04-20 16:05:13 +02:00
Bodong Wang 0e7df22401 PCI: Add sysfs sriov_drivers_autoprobe to control VF driver binding
Sometimes it is not desirable to bind SR-IOV VFs to drivers.  This can save
host side resource usage by VF instances that will be assigned to VMs.

Add a new PCI sysfs interface "sriov_drivers_autoprobe" to control that
from the PF.  To modify it, echo 0/n/N (disable probe) or 1/y/Y (enable
probe) to:

  /sys/bus/pci/devices/<DOMAIN:BUS:DEVICE.FUNCTION>/sriov_drivers_autoprobe

Note that this must be done before enabling VFs.  The change will not take
effect if VFs are already enabled.  Simply, one can disable VFs by setting
sriov_numvfs to 0, choose whether to probe or not, and then re-enable the
VFs by restoring sriov_numvfs.

[bhelgaas: changelog, ABI doc]
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
2017-04-20 08:53:51 -05:00
David Woodhouse f719582435 PCI: Add pci_mmap_resource_range() and use it for ARM64
Starting to leave behind the legacy of the pci_mmap_page_range() interface
which takes "user-visible" BAR addresses.  This takes just the resource and
offset.

For now, both APIs coexist and depending on the platform, one is
implemented as a wrapper around the other.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-20 08:47:47 -05:00
Alexey Kardashevskiy 121f80ba68 KVM: PPC: VFIO: Add in-kernel acceleration for VFIO
This allows the host kernel to handle H_PUT_TCE, H_PUT_TCE_INDIRECT
and H_STUFF_TCE requests targeted an IOMMU TCE table used for VFIO
without passing them to user space which saves time on switching
to user space and back.

This adds H_PUT_TCE/H_PUT_TCE_INDIRECT/H_STUFF_TCE handlers to KVM.
KVM tries to handle a TCE request in the real mode, if failed
it passes the request to the virtual mode to complete the operation.
If it a virtual mode handler fails, the request is passed to
the user space; this is not expected to happen though.

To avoid dealing with page use counters (which is tricky in real mode),
this only accelerates SPAPR TCE IOMMU v2 clients which are required
to pre-register the userspace memory. The very first TCE request will
be handled in the VFIO SPAPR TCE driver anyway as the userspace view
of the TCE table (iommu_table::it_userspace) is not allocated till
the very first mapping happens and we cannot call vmalloc in real mode.

If we fail to update a hardware IOMMU table unexpected reason, we just
clear it and move on as there is nothing really we can do about it -
for example, if we hot plug a VFIO device to a guest, existing TCE tables
will be mirrored automatically to the hardware and there is no interface
to report to the guest about possible failures.

This adds new attribute - KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE - to
the VFIO KVM device. It takes a VFIO group fd and SPAPR TCE table fd
and associates a physical IOMMU table with the SPAPR TCE table (which
is a guest view of the hardware IOMMU table). The iommu_table object
is cached and referenced so we do not have to look up for it in real mode.

This does not implement the UNSET counterpart as there is no use for it -
once the acceleration is enabled, the existing userspace won't
disable it unless a VFIO container is destroyed; this adds necessary
cleanup to the KVM_DEV_VFIO_GROUP_DEL handler.

This advertises the new KVM_CAP_SPAPR_TCE_VFIO capability to the user
space.

This adds real mode version of WARN_ON_ONCE() as the generic version
causes problems with rcu_sched. Since we testing what vmalloc_to_phys()
returns in the code, this also adds a check for already existing
vmalloc_to_phys() call in kvmppc_rm_h_put_tce_indirect().

This finally makes use of vfio_external_user_iommu_id() which was
introduced quite some time ago and was considered for removal.

Tests show that this patch increases transmission speed from 220MB/s
to 750..1020MB/s on 10Gb network (Chelsea CXGB3 10Gb ethernet card).

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-04-20 11:39:26 +10:00
Johan Hovold bafdcde73b PM / runtime: Document autosuspend-helper side effects
Document the fact that the autosuspend delay and enable helpers may
change the power.usage_count and resume or suspend a device depending on
the values of power.autosuspend_delay and power.use_autosuspend.

Note that this means that a driver must disable autosuspend before
disabling runtime pm on probe errors and on driver unbind if the device
is to be suspended upon return (as a negative delay may otherwise keep
the device resumed).

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 23:29:18 +02:00
Johan Hovold 72ec2e17f9 PM / runtime: Fix autosuspend documentation
Update the autosuspend documentation which claimed that the autosuspend
delay is not taken into account when using the non-autosuspend helper
functions, something which is no longer true since commit d66e6db28d
("PM / Runtime: Respect autosuspend when idle triggers suspend").

This specifically means that drivers must now disable autosuspend before
disabling runtime pm in probe error paths and remove callbacks if
pm_runtime_put_sync was being used to suspend the device before
returning. (If an idle callback can prevent suspend,
pm_runtime_put_sync_suspend must be used instead of pm_runtime_put_sync
as before.)

Also remove the claim that the autosuspend helpers behave "just like
the non-autosuspend counterparts", something which have never really
been true as some of the latter use idle notifications.

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 23:29:17 +02:00
Felix Brack 28c5fe9901 leds: pca9532: Extend pca9532 device tree support
This patch extends the device tree support for the pca9532 by adding
the leds 'default-state' property.

Signed-off-by: Felix Brack <fb@ltec.ch>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-04-19 20:27:50 +02:00
Kevin-CW Chen 2b51f514a2 dt-bindings: arm: mediatek: document clk bindings for MT6797
This patch adds the binding documentation for apmixedsys, imgsys,
infracfg, mmsys, topckgen, vdecsys and vencsys for MT6797.

Signed-off-by: Kevin-CW Chen <kevin-cw.chen@mediatek.com>
Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:20:20 -07:00
Alexey Firago a330b6f5d1 clk: vc5: Add bindings for IDT VersaClock 5P49V5935
IDT VersaClock 5 5P49V5935 has 4 clock outputs, 4 fractional dividers.
Input clock source can be taken from either integrated crystal or from
external reference clock.

Signed-off-by: Alexey Firago <alexey_firago@mentor.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:08:48 -07:00
Stephen Boyd 8062b4aafc Allwinner clock patches for 4.12
Support for the new H5 SoC and the PRCM block found in a number of SoCs as
 well, plus the usual chunk of fixes and minor enhancements.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJY5feFAAoJEBx+YmzsjxAgzicP/2zx3xYRy5C69wI5IRxAMDjg
 3AGgZgVXH/ir9CHVW7oGhBo9VdgbMdTZAJCA6WKBVjpjSsRkEVeEeRMTKAPbBBll
 u5bFpQ2hX4WnGFlILAfXLtJJ39pEPZnHUN+ew3umR7xXMm76o7vB8Z59fd9qkgpP
 wXwwZPDywtLusawxDjci0Wrzek8MHkFA6WwXnlnp82CbG+tLOe+o/x9kv125x9fT
 td2POgaoG2FEBL1GyfqY0uzmNKs8oHwgbWmepsu5xFmmLYS4cwVHHIMAm3iOEmF+
 tPZfeYxYVDY3cDfPhyj7/in3ej5SM63ZG6YSZjd2z/rXhGrcCNCmhFEwk9ie81oT
 uHQ6B7K4hAtV1zJ7wZZJD/vqZewOaTcb/V9S7D1bGsBLcBrswOp7yaf2ECnhSQu0
 C20Vp9xFdmSTReGIpD6+HCVLYSU0DHOVx0D/+dPOTtrfJR98xiEvUPekuo9yRmuc
 MIBFzRJ83x9Ee5PS2jBju2V7VaGD08Q6R3JLDkCgUTaBTZq/jlNGc/9DD6llFM/E
 idQ6j9dJnSzU6C4QVClIxBQHJu4kGNUUeWAXqxBTEh7jUg5bnKjUXox0W44RzqPP
 j/ZWB60xLD/FdbaGQdxU72uFpok9Uc2fySvQqAwePe5F2j27IIMOKu/CpFmefc17
 Ww+4lw2nbR3dypCxt6C7
 =V49g
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull Allwinner clock patches for 4.12 from Maxime Ripard:

Support for the new H5 SoC and the PRCM block found in a number of SoCs as
well, plus the usual chunk of fixes and minor enhancements.

* tag 'sunxi-clk-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: Display index when clock registration fails
  clk: sunxi-ng: a33: Add offset and minimum value for DDR1 PLL N factor
  clk: sunxi-ng: a80: Remodel CPU cluster PLLs as N-type multiplier clocks
  clk: sunxi-ng: mult: Support PLL lock detection
  clk: sunxi-ng: add support for PRCM CCUs
  dt-bindings: update device tree binding for Allwinner PRCM CCUs
  clk: sunxi-ng: sun5i: Fix mux width for csi clock
  clk: sunxi-ng: tighten SoC deps on explicit AllWinner SoCs
  clk: sunxi-ng: add Allwinner H5 CCU support for H3 CCU driver
  clk: sunxi-ng: gate: Support common pre-dividers
2017-04-19 09:02:00 -07:00
Paolo Valente 44e44a1b32 block, bfq: improve responsiveness
This patch introduces a simple heuristic to load applications quickly,
and to perform the I/O requested by interactive applications just as
quickly. To this purpose, both a newly-created queue and a queue
associated with an interactive application (we explain in a moment how
BFQ decides whether the associated application is interactive),
receive the following two special treatments:

1) The weight of the queue is raised.

2) The queue unconditionally enjoys device idling when it empties; in
fact, if the requests of a queue are sync, then performing device
idling for the queue is a necessary condition to guarantee that the
queue receives a fraction of the throughput proportional to its weight
(see [1] for details).

For brevity, we call just weight-raising the combination of these
two preferential treatments. For a newly-created queue,
weight-raising starts immediately and lasts for a time interval that:
1) depends on the device speed and type (rotational or
non-rotational), and 2) is equal to the time needed to load (start up)
a large-size application on that device, with cold caches and with no
additional workload.

Finally, as for guaranteeing a fast execution to interactive,
I/O-related tasks (such as opening a file), consider that any
interactive application blocks and waits for user input both after
starting up and after executing some task. After a while, the user may
trigger new operations, after which the application stops again, and
so on. Accordingly, the low-latency heuristic weight-raises again a
queue in case it becomes backlogged after being idle for a
sufficiently long (configurable) time. The weight-raising then lasts
for the same time as for a just-created queue.

According to our experiments, the combination of this low-latency
heuristic and of the improvements described in the previous patch
allows BFQ to guarantee a high application responsiveness.

[1] P. Valente, A. Avanzini, "Evolution of the BFQ Storage I/O
    Scheduler", Proceedings of the First Workshop on Mobile System
    Technologies (MST-2015), May 2015.
    http://algogroup.unimore.it/people/paolo/disk_sched/mst-2015.pdf

Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-19 08:30:26 -06:00
Arianna Avanzini e21b7a0b98 block, bfq: add full hierarchical scheduling and cgroups support
Add complete support for full hierarchical scheduling, with a cgroups
interface. Full hierarchical scheduling is implemented through the
'entity' abstraction: both bfq_queues, i.e., the internal BFQ queues
associated with processes, and groups are represented in general by
entities. Given the bfq_queues associated with the processes belonging
to a given group, the entities representing these queues are sons of
the entity representing the group. At higher levels, if a group, say
G, contains other groups, then the entity representing G is the parent
entity of the entities representing the groups in G.

Hierarchical scheduling is performed as follows: if the timestamps of
a leaf entity (i.e., of a bfq_queue) change, and such a change lets
the entity become the next-to-serve entity for its parent entity, then
the timestamps of the parent entity are recomputed as a function of
the budget of its new next-to-serve leaf entity. If the parent entity
belongs, in its turn, to a group, and its new timestamps let it become
the next-to-serve for its parent entity, then the timestamps of the
latter parent entity are recomputed as well, and so on. When a new
bfq_queue must be set in service, the reverse path is followed: the
next-to-serve highest-level entity is chosen, then its next-to-serve
child entity, and so on, until the next-to-serve leaf entity is
reached, and the bfq_queue that this entity represents is set in
service.

Writeback is accounted for on a per-group basis, i.e., for each group,
the async I/O requests of the processes of the group are enqueued in a
distinct bfq_queue, and the entity associated with this queue is a
child of the entity associated with the group.

Weights can be assigned explicitly to groups and processes through the
cgroups interface, differently from what happens, for single
processes, if the cgroups interface is not used (as explained in the
description of the previous patch). In particular, since each node has
a full scheduler, each group can be assigned its own weight.

Signed-off-by: Fabio Checconi <fchecconi@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-19 08:30:26 -06:00
Paolo Valente aee69d78de block, bfq: introduce the BFQ-v0 I/O scheduler as an extra scheduler
We tag as v0 the version of BFQ containing only BFQ's engine plus
hierarchical support. BFQ's engine is introduced by this commit, while
hierarchical support is added by next commit. We use the v0 tag to
distinguish this minimal version of BFQ from the versions containing
also the features and the improvements added by next commits. BFQ-v0
coincides with the version of BFQ submitted a few years ago [1], apart
from the introduction of preemption, described below.

BFQ is a proportional-share I/O scheduler, whose general structure,
plus a lot of code, are borrowed from CFQ.

- Each process doing I/O on a device is associated with a weight and a
  (bfq_)queue.

- BFQ grants exclusive access to the device, for a while, to one queue
  (process) at a time, and implements this service model by
  associating every queue with a budget, measured in number of
  sectors.

  - After a queue is granted access to the device, the budget of the
    queue is decremented, on each request dispatch, by the size of the
    request.

  - The in-service queue is expired, i.e., its service is suspended,
    only if one of the following events occurs: 1) the queue finishes
    its budget, 2) the queue empties, 3) a "budget timeout" fires.

    - The budget timeout prevents processes doing random I/O from
      holding the device for too long and dramatically reducing
      throughput.

    - Actually, as in CFQ, a queue associated with a process issuing
      sync requests may not be expired immediately when it empties. In
      contrast, BFQ may idle the device for a short time interval,
      giving the process the chance to go on being served if it issues
      a new request in time. Device idling typically boosts the
      throughput on rotational devices, if processes do synchronous
      and sequential I/O. In addition, under BFQ, device idling is
      also instrumental in guaranteeing the desired throughput
      fraction to processes issuing sync requests (see [2] for
      details).

      - With respect to idling for service guarantees, if several
        processes are competing for the device at the same time, but
        all processes (and groups, after the following commit) have
        the same weight, then BFQ guarantees the expected throughput
        distribution without ever idling the device. Throughput is
        thus as high as possible in this common scenario.

  - Queues are scheduled according to a variant of WF2Q+, named
    B-WF2Q+, and implemented using an augmented rb-tree to preserve an
    O(log N) overall complexity.  See [2] for more details. B-WF2Q+ is
    also ready for hierarchical scheduling. However, for a cleaner
    logical breakdown, the code that enables and completes
    hierarchical support is provided in the next commit, which focuses
    exactly on this feature.

  - B-WF2Q+ guarantees a tight deviation with respect to an ideal,
    perfectly fair, and smooth service. In particular, B-WF2Q+
    guarantees that each queue receives a fraction of the device
    throughput proportional to its weight, even if the throughput
    fluctuates, and regardless of: the device parameters, the current
    workload and the budgets assigned to the queue.

  - The last, budget-independence, property (although probably
    counterintuitive in the first place) is definitely beneficial, for
    the following reasons:

    - First, with any proportional-share scheduler, the maximum
      deviation with respect to an ideal service is proportional to
      the maximum budget (slice) assigned to queues. As a consequence,
      BFQ can keep this deviation tight not only because of the
      accurate service of B-WF2Q+, but also because BFQ *does not*
      need to assign a larger budget to a queue to let the queue
      receive a higher fraction of the device throughput.

    - Second, BFQ is free to choose, for every process (queue), the
      budget that best fits the needs of the process, or best
      leverages the I/O pattern of the process. In particular, BFQ
      updates queue budgets with a simple feedback-loop algorithm that
      allows a high throughput to be achieved, while still providing
      tight latency guarantees to time-sensitive applications. When
      the in-service queue expires, this algorithm computes the next
      budget of the queue so as to:

      - Let large budgets be eventually assigned to the queues
        associated with I/O-bound applications performing sequential
        I/O: in fact, the longer these applications are served once
        got access to the device, the higher the throughput is.

      - Let small budgets be eventually assigned to the queues
        associated with time-sensitive applications (which typically
        perform sporadic and short I/O), because, the smaller the
        budget assigned to a queue waiting for service is, the sooner
        B-WF2Q+ will serve that queue (Subsec 3.3 in [2]).

- Weights can be assigned to processes only indirectly, through I/O
  priorities, and according to the relation:
  weight = 10 * (IOPRIO_BE_NR - ioprio).
  The next patch provides, instead, a cgroups interface through which
  weights can be assigned explicitly.

- If several processes are competing for the device at the same time,
  but all processes and groups have the same weight, then BFQ
  guarantees the expected throughput distribution without ever idling
  the device. It uses preemption instead. Throughput is then much
  higher in this common scenario.

- ioprio classes are served in strict priority order, i.e.,
  lower-priority queues are not served as long as there are
  higher-priority queues.  Among queues in the same class, the
  bandwidth is distributed in proportion to the weight of each
  queue. A very thin extra bandwidth is however guaranteed to the Idle
  class, to prevent it from starving.

- If the strict_guarantees parameter is set (default: unset), then BFQ
     - always performs idling when the in-service queue becomes empty;
     - forces the device to serve one I/O request at a time, by
       dispatching a new request only if there is no outstanding
       request.
  In the presence of differentiated weights or I/O-request sizes,
  both the above conditions are needed to guarantee that every
  queue receives its allotted share of the bandwidth (see
  Documentation/block/bfq-iosched.txt for more details). Setting
  strict_guarantees may evidently affect throughput.

[1] https://lkml.org/lkml/2008/4/1/234
    https://lkml.org/lkml/2008/11/11/148

[2] P. Valente and M. Andreolini, "Improving Application
    Responsiveness with the BFQ Disk I/O Scheduler", Proceedings of
    the 5th Annual International Systems and Storage Conference
    (SYSTOR '12), June 2012.
    Slightly extended version:
    http://algogroup.unimore.it/people/paolo/disk_sched/bfq-v1-suite-
							results.pdf

Signed-off-by: Fabio Checconi <fchecconi@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-19 08:29:02 -06:00
Olof Johansson 77f2369789 DT for 4.12:
- Add SFRBU on sama5d2
  - DT improvements for sama5d2_xplained, sama5d3_xplained, at91sam9x5ek and
  Axentia TSE-850
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEl0I5XWmUIrwBfFMm2KKDO9oT4sIFAljwf8cACgkQ2KKDO9oT
 4sKN+w//WxdbKG6tOOIeIn/qFbbYDQ7mJhpX9h3ZuHntnp3TXCed8dog8ELIKcPP
 uQzkKvwOMq+MtGpjEFstCpO3YBD7lvjXD1MmhARSVI5B3mvSp3eeQdI7QgzHJHna
 0oQaKtQgNo1LxhkK2guo/C3CzTULaSRzLcofRzjdnAg+xeGZgcd8u3yRQ6phfTgZ
 XZ8QrzpnOAe9se9/oNzyWcIkXSYJkihDp0/0iOfDWUoERek/B4PFUxxKAemONL9o
 EencH4249RWLk4lZ/RCSWLiSceCV2YebcwL7GcYNINnt17xkS/MaqTmxEyPSp7cJ
 aGYQr9bD+BIK+YYRuNN6tUlbTXN27+0z74c19yXWQPjcY5sh1W64Yra9LSJKqaKj
 RTZQyEvKWYoHAcJ9SRFvEUGZmjnEoIr0SeghW2mcBSnBFUOvfWQkzypiYHDgmvlb
 UMWXRNwqHTpP0n9ogeUW1Hd6aEdsoU5DeMF2FTEC8UxgJt7QukyfmfnywCdSfzuT
 9EHAYo3yutb/lQZosRrV252Q3FS/2SpY+p0jaP01w2UFllQpcDil5DnLt9JaepeK
 bQeE+orOHfkBCNZFzSZjTA6/mQQzzuAYHKq6LPBdGOk0WphWvU17KPZUllJYu9T1
 iAnD/1Uh2yJFXQdDYmXtQIi/R037vaSVVtTxyXWKteTdotpALjc=
 =VO8s
 -----END PGP SIGNATURE-----

Merge tag 'at91-ab-4.12-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/dt

DT for 4.12:

 - Add SFRBU on sama5d2
 - DT improvements for sama5d2_xplained, sama5d3_xplained, at91sam9x5ek and
 Axentia TSE-850

* tag 'at91-ab-4.12-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  ARM: dts: at91: sama5d3_xplained: not all ADC channels are available
  ARM: dts: at91: sama5d3_xplained: fix ADC vref
  ARM: dts: at91: add envelope detector mux to the Axentia TSE-850
  ARM: dts: at91: Disable SPI on at91sam9x5ek to allow MCI1 to work.
  ARM: dts: at91: Fix matrix compatible
  ARM: dts: at91: sama5d2_xplained: enable RTC wakeup
  ARM: dts: at91: sama5d2: add sfrbu

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:47:46 -07:00
Olof Johansson a43315e3dd i.MX device tree updates for 4.12:
- New board support: I2SE's i.MX28 Duckbill-2 boards, Gateworks Ventana
    i.MX6 GW5903/GW5904, Zodiac Inflight Innovations RDU2 board, Engicam
    i.CoreM6 Quad/Dual OpenFrame modules, Boundary Device i.MX6 Quad Plus
    SOM.
  - Improve compatible string for i.MX50 eSDHC, i.MX7S SRC devices and
    i.MX6SX UART device.
  - Add interrupts for switch and PHY devices on VF610 ZII Devel C board.
  - Add LVDS, LCD backlight, touchscreen and SAI2 support for i.MX6
    icore, geam, and isiot boards.
  - A series from Lucas Stach to improve i.MX6Q Plus device tree and add
    PRE/PRG devices.
  - A series from Stefan Agner to update imx7-colibri device tree
    regarding to display, PMIC/regulator support.
  - Fix PCI bus DTC warnings seen with the latest compiler.
  - Set default phy_type and dr_mode for i.MX25 USBOTG port.
  - A couple of small improvements on i.MX25 pin function DT header.
  - Add audio support for imx6q-cm-fx6 board using Wolfson wm8731 codec
    which is muxed to SSI2 device.
  - Other random updates, small fixes and trivial cleanups.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJY65XcAAoJEFBXWFqHsHzO0goH/jVVtrnkbfzjEZ+jSU30XY+L
 8kR/R+5+PgT3LXZ/U3ZHWqbLOrYtnsmqUjA4loaRwTfyMEPnkRx86XUE86U/xfVy
 FuWhFuQ/lLDyfon/CvrEXQ73+CTq8Q5PBqKefg9twi5fNkN2wRqVCD5i4cVgxMpi
 KF6DchLv0eW2Zn6fYySf4zNcOIvbkma/qn/Ju2kZEP6TKadIgYvX5Tcw47d2fKsv
 E5vypBXdWlNV4SzZyAm4CS9X3pjIQa8zIXHyJAeiqBY/2H7u6z/UvOqnRt0RFnX5
 eaVtHF2DwuC9DyjyNVBK1Fhi/7++nnmbLRvBK9G4LBZNmIbcWJEVMHsQcsDQ2h8=
 =hpdP
 -----END PGP SIGNATURE-----

Merge tag 'imx-dt-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt

i.MX device tree updates for 4.12:
 - New board support: I2SE's i.MX28 Duckbill-2 boards, Gateworks Ventana
   i.MX6 GW5903/GW5904, Zodiac Inflight Innovations RDU2 board, Engicam
   i.CoreM6 Quad/Dual OpenFrame modules, Boundary Device i.MX6 Quad Plus
   SOM.
 - Improve compatible string for i.MX50 eSDHC, i.MX7S SRC devices and
   i.MX6SX UART device.
 - Add interrupts for switch and PHY devices on VF610 ZII Devel C board.
 - Add LVDS, LCD backlight, touchscreen and SAI2 support for i.MX6
   icore, geam, and isiot boards.
 - A series from Lucas Stach to improve i.MX6Q Plus device tree and add
   PRE/PRG devices.
 - A series from Stefan Agner to update imx7-colibri device tree
   regarding to display, PMIC/regulator support.
 - Fix PCI bus DTC warnings seen with the latest compiler.
 - Set default phy_type and dr_mode for i.MX25 USBOTG port.
 - A couple of small improvements on i.MX25 pin function DT header.
 - Add audio support for imx6q-cm-fx6 board using Wolfson wm8731 codec
   which is muxed to SSI2 device.
 - Other random updates, small fixes and trivial cleanups.

* tag 'imx-dt-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (56 commits)
  ARM: dts: imx6q-utilite-pro: add hpd gpio
  ARM: dts: imx6qp-sabresd: Set reg_arm regulator supply
  ARM: dts: imx6qdl-sabresd: Set LDO regulator supply
  ARM: dts: imx: add Gateworks Ventana GW5903 support
  ARM: dts: i.MX25: add AIPS control registers
  ARM: dts: imx7-colibri: add Carrier Board 3.3V/5V regulators
  ARM: dts: imx7-colibri: remove 1.8V fixed regulator
  ARM: dts: imx7-colibri: allow to disable Ethernet rail
  ARM: dts: imx7-colibri: fix PMIC voltages
  ARM: dts: imx7-colibri: use OF graph to describe the display
  ARM: dts: imx6qp-nitrogen6_som2: add Quad Plus variant of the SOM
  ARM: dts: imx6q-icore: Add touchscreen node
  ARM: dts: vf610-zii-dev-rev-b: change switch2 label
  ARM: dts: imx6ul-[geam|isiot]: Add sai2 node
  ARM: dts: imx6ul-isiot-common: Add touchscreen node
  ARM: dts: imx6ul-isiot: Add i2c nodes
  ARM: dts: imx6ul-isiot: Add imx6ul-isiot-common.dtsi
  ARM: dts: imx6ul-isiot: Add backlight support for lcdif
  ARM: dts: imx6ul-geam: Add backlight support for lcdif
  ARM: dts: imx6: add ZII RDU2 boards
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:45:59 -07:00
Olof Johansson b633b31406 Support for the usb-sata controller on the rock2 and another new rk3288
board, the phyCORE som and its PCM-947 carrier board from Phytec.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAljpQsEQHGhlaWtvQHNu
 dGVjaC5kZQAKCRDzpnnJnNEdgSw5CACTf+7cvykZ3aKvtfo76yacC84mSMdLFOQl
 IPkQBX6cV2CEes8xoKjsHXwvYgpgX6Jz58S86ATfi+h3uMu4l7dld+yMaipTcZp/
 ROCtf16r+sjq3kndDGoqSFyq5+YZ2En+mz+86YDdEYS3vZvASp+gSVRkn7NUPlrU
 +O2Wb8mdY+Hl8XYSZcsmQ7zNjxw/G9pyqVly0/3aSuHRVAbtn4KyunbfkhHdK4LJ
 NOFji0t+FIXEr8FNBpiRFnIQ19KILzWmrIr5c92Tz+t11R8+wSIwITYpsAomwVqO
 QWtI1alwusJHY2MwdLXlFtBAW3BwsTt72gasl6AigpvYIP0AxKna
 =R6eU
 -----END PGP SIGNATURE-----

Merge tag 'v4.12-rockchip-dts32-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt

Support for the usb-sata controller on the rock2 and another new rk3288
board, the phyCORE som and its PCM-947 carrier board from Phytec.

* tag 'v4.12-rockchip-dts32-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: dts: rockchip: Add support for PCM-947 carrier board
  dt-bindings: Document Phytec phyCORE-RK3288 RDK
  ARM: dts: rockchip: Add support for phyCORE-RK3288 SoM
  ARM: dts: rockchip: Enable sata support on rock2 square

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:45:10 -07:00
Olof Johansson 912c9fbe66 i.MX drivers updates for 4.12:
- A series from Lucas Stach which partly rewrites the imx gpc driver
    to support multiple power domains, and moves the related code from
    imx platform into drivers folder.
  - A series from Dong Aisheng which fixes the issues with Lucas' code
    changes and improves things.
  - Add workaround for i.MX6QP hardware erratum ERR009619 that is PRE
    clocks may be stalled during the power up sequencing of the PU power
    domain.
  - Add imx-gpcv2 driver to support power domains managed by GPCv2 IP
    block found on i.MX7 series of SoCs.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJY6zd4AAoJEFBXWFqHsHzODtoH/jwTFRhAhfKG2wfplkP+U4HT
 gijXHDybebRGll2voGAL7YX7GPhLcy0NSGdiK/ckTtHlvR4E2uxcwaIwzXIE1CTb
 MXfv7p+3FXhjcqgbvl122hnLAMWOYjcbH3tFzBy1jlpGp9oEmHx4OtpdlgyD5GJ7
 +En6aDtbU0g8aJg9ldZfO8iSAJz1CAqpap+FRjpcPX4xXflOQwQfxJNWuDeg75k6
 U3zB2r+lbmjIfohUHWAnHsU2Jf4WPrBrjVsj/1YsiE5rMNPfxAEPYSQJAumG7JtO
 qTPWf3qJnSyrWBscPRR3Fs//11IgXZXSCWBPBZjng0ELFS3Rkdvp87etjZraSjU=
 =Sypm
 -----END PGP SIGNATURE-----

Merge tag 'imx-drivers-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/drivers

i.MX drivers updates for 4.12:
 - A series from Lucas Stach which partly rewrites the imx gpc driver
   to support multiple power domains, and moves the related code from
   imx platform into drivers folder.
 - A series from Dong Aisheng which fixes the issues with Lucas' code
   changes and improves things.
 - Add workaround for i.MX6QP hardware erratum ERR009619 that is PRE
   clocks may be stalled during the power up sequencing of the PU power
   domain.
 - Add imx-gpcv2 driver to support power domains managed by GPCv2 IP
   block found on i.MX7 series of SoCs.

* tag 'imx-drivers-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: gpc: add workaround for i.MX6QP to the GPC PD driver
  dt-bindings: imx-gpc: add i.MX6 QuadPlus compatible
  soc: imx: gpc: add defines for domain index
  soc: imx: Add GPCv2 power gating driver
  dt-bindings: Add GPCv2 power gating driver
  soc: imx: gpc: remove unnecessary readable_reg callback
  dt-bindings: imx-gpc: correct the DOMAIN_INDEX using
  soc: imx: gpc: keep PGC_X_CTRL name align with reference manual
  soc: imx: gpc: fix comment when power up domain
  soc: imx: gpc: fix imx6sl gpc power domain regression
  soc: imx: gpc: fix domain_index sanity check issue
  soc: imx: gpc: fix the wrong using of regmap cache
  soc: imx: gpc: fix gpc clk get error handling
  soc: imx: move PGC handling to a new GPC driver
  dt-bindings: add multidomain support to i.MX GPC DT binding

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:38:32 -07:00
Olof Johansson 08fd8c9567 ARM64: DT: Hisilicon SoC DT updates for 4.12
- Reset the hi6220 mmc hosts to avoid hang
 - Add the binding for the hi3798cv200 SoC and the poplar board
 - Add basic dts files to support the hi3798cv200 poplar board
 - Enable the Mbigen, XGE, RoCE and SAS for the hip07 d05 board
 - Add driver strength MACRO for the hi3660 SoC
 - Add the pinctrl dtsi file for hikey960 board to configure the pins
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJY66cBAAoJEAvIV27ZiWZcSAAP/3qvcWDNVwc7Rg5JIcbvBP09
 mBbcutrHmFVi5Swd3yuTyNErRFliVsdDV3dwanxlXOojqYgE4WpJQFKtXr8obQUa
 q3yk+gzMIS3+P18dJPU+SFsCwLDaUF4PkiRm3vd4Oc6fgPfqCbWfYcS6jOhbBdzD
 GWAMp6j/vn3Br3RSFe2NgH43kv2H4efEh0lrKj3wk2mCDF3s69PaMGPLgCfeV1F0
 pYwyO/2v4TWuJkO8U7g1XyvK6LRO49mWDKdqhP0hZpr3DJP7T5u9E4bxScBwG2GY
 ENURvZpl3Kd1thfR9+7FkwNg0Z7Y9hVNI5763JzLusd6pw1y2jDU9oEESpuVi1FH
 9dwqloiLuonYSPvAM9XS84CXnguFoqjndf7Z3d9yliS86GRn4g5B5t20rlLtSE+4
 o+IcLQy6z6CpDHugTzav3oBsscckEiWsmX0X6Jym23+buzFcHWOPOQldIUUSDDoq
 9oct1AxBrQA9F9KspaiWRy38Bwi8qRT5FT+BfBai3y45FeEKdRFUghIwdeqm4F2v
 1JulIiPelHUtELAcAEJFRVQzgfSVuGuXCAHVHpgXE018UnNvhfl3/VtUtvLI71wf
 jukY2JIJsG9r/NHR1uZU8LGN70bNUjHXwuF0R/zh2zwZT+mDgxEe5zOlCbQyYJbt
 uqVy7+asSKcbOLabW/Ae
 =5zO6
 -----END PGP SIGNATURE-----

Merge tag 'hisi-arm64-dt-for-4.12' of git://github.com/hisilicon/linux-hisi into next/dt64

ARM64: DT: Hisilicon SoC DT updates for 4.12

- Reset the hi6220 mmc hosts to avoid hang
- Add the binding for the hi3798cv200 SoC and the poplar board
- Add basic dts files to support the hi3798cv200 poplar board
- Enable the Mbigen, XGE, RoCE and SAS for the hip07 d05 board
- Add driver strength MACRO for the hi3660 SoC
- Add the pinctrl dtsi file for hikey960 board to configure the pins

* tag 'hisi-arm64-dt-for-4.12' of git://github.com/hisilicon/linux-hisi:
  arm64: dts: hisi: add pinctrl dtsi file for HiKey960 development board
  arm64: dts: hisi: add drive strength levels of the pins for Hi3660 SoC
  arm64: dts: hisi: enable the NIC and SAS for the hip07-d05 board
  arm64: dts: hisi: add SAS nodes for the hip07 SoC
  arm64: dts: hisi: add RoCE nodes for the hip07 SoC
  arm64: dts: hisi: add network related nodes for the hip07 SoC
  arm64: dts: hisi: add mbigen nodes for the hip07 SoC
  arm64: dts: hisilicon: add dts files for hi3798cv200-poplar board
  dt-bindings: arm: hisilicon: add bindings for hi3798cv200 SoC and Poplar board
  arm64: dts: hi6220: Reset the mmc hosts

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:33:20 -07:00
Olof Johansson 13ed63b6cb Freescale arm64 device tree updates for 4.12:
- Add support of LS2088A SoC, which is a derivative of existing
    LS2080A SoC, and the major difference is on ARM cores.
  - Add support of LS1088A SoC which includes eight Cortex-A53 cores
    with 32 KB L1 D-cache and I-cache respectively.
  - Add crypto and thermal device support for LS1012A platform.
  - Add ECC register region for SATA device on LS1012A, LS1043A and
    LS1046A platforms.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJY649rAAoJEFBXWFqHsHzO3O4H/Ry5BxyUsrIziFCMNv05chEw
 /C5AJVGGHyZTc2q/nGeR+wkDXhB7p7xX9D4Fzl+lAss58J20yB403dbrc5r2cmPk
 aataxt1q4wfH9KekGlEqkolkQrMPRb7i+j36xpjVUCeFww8C8rszFC3CJwcTLFX8
 pdhykfIpKz/Osy1hWH4Nt9Ss3L+8DhmQGh1bueriggQ5f/MPkhZUk7goK4j8mlC+
 i5oWcO6wWvTXg1HTW+PbtBFJWqQ7ztb0qHSikoJ8yWtIkzehlcgrO7qkdf8hI8pV
 gj48OMrvS4b/aYsAKmfVGCDpNqedoJDVbPRXkES8/z1avkKUmGLnhr9Ftdw7saA=
 =BYDv
 -----END PGP SIGNATURE-----

Merge tag 'imx-dt64-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/dt64

Freescale arm64 device tree updates for 4.12:
 - Add support of LS2088A SoC, which is a derivative of existing
   LS2080A SoC, and the major difference is on ARM cores.
 - Add support of LS1088A SoC which includes eight Cortex-A53 cores
   with 32 KB L1 D-cache and I-cache respectively.
 - Add crypto and thermal device support for LS1012A platform.
 - Add ECC register region for SATA device on LS1012A, LS1043A and
   LS1046A platforms.

* tag 'imx-dt64-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  dt-bindings: arm: Add entry for FSL LS1088A RDB, QDS boards
  dt-bindings: clockgen: Add compatible string for LS1088A
  arm64: dts: Add support for FSL's LS1088A SoC
  arm64: dts: ls1012a: add crypto node
  arm64: dts: ls1012a: add thermal monitor node
  arm64: dts: updated sata node on ls1012a platform
  arm64: dts: added ecc register address to sata node on ls1046a
  arm64: dts: added ecc register address to sata node on ls1043a
  arm64: dts: freescale: ls2088a: Add DTS support for FSL's LS2088A SoC
  arm64: dts: freescale: ls2080a: Split devicetree for code resuability
  dt-bindings: Add compatible for LS2088A QDS and RDB board

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:33:08 -07:00
Olof Johansson ab719074fa Basic support for new rk3328, a 4-core Cortex-A53 soc and a fix for the
default memory definition on the px5 eval board. While the bootloader
 should already override it with the actual amount, it's better to not
 carry around wrong values.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAljpQgUQHGhlaWtvQHNu
 dGVjaC5kZQAKCRDzpnnJnNEdgSriCACyesU9O1mz0CHWArxHY1O4UJ8SYdZqotOv
 Q8XVWA7H9wrLMazyauHDGxZ63PbSMuhkOzpbUwBl6BEgUtVtr2j0c8JgvLk7IAqS
 07ggX/7cYoqCLB8CKqkgdGKYjWIVwkGm0zL7lBwtlF6WnTl92B+gHEll8sv8R7ua
 EO1Biq+o/XZrmsBoBBWtnaJdZYAcIMEU3qRtI4mInvOHkDCEvW0kaKuPT9A2h75j
 7Asgpn0Na3sqX3UPAk5F1+YCEV40aZ10qPV1HurKL1E61HepDWs3rjymyXh0H12q
 B9yzOGPfxdoU21rCAu1HtMu4ujo5ppvKRajeE4nyag92TTuP2lu4
 =tcTl
 -----END PGP SIGNATURE-----

Merge tag 'v4.12-rockchip-dts64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/dt64

Basic support for new rk3328, a 4-core Cortex-A53 soc and a fix for the
default memory definition on the px5 eval board. While the bootloader
should already override it with the actual amount, it's better to not
carry around wrong values.

* tag 'v4.12-rockchip-dts64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: fix the memory size of PX5 Evaluation board
  arm64: dts: rockchip: add RK3328 eavluation board devicetree
  dt-bindings: document rockchip rk3328-evb board
  arm64: dts: rockchip: add core dtsi file for RK3328 SoCs
  dt-bindings: add binding for rk3328-grf

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:33:03 -07:00
Olof Johansson e1851247a0 dt-bindings: Updates for v4.12-rc1
This contains an update for the flow controller device tree binding as
 well as the addition of the binding for the GP10B GPU found on the new
 Tegra186 (Parker) SoC.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAljmxg4THHRyZWRpbmdA
 bnZpZGlhLmNvbQAKCRDdI6zXfz6zoYy6D/41zgWP+rlYO03xHdQ9g/tJgpKWtGmg
 U0hiAxycHiFuSnHv8cOHihEPHzR55hAQPTbr9lAM/gcXjUHVAQ0pPRm50Iu5Q0if
 M3QSRhZPSqP54pibNDrsd8Pz75gWTNEvc971IqBPkCiqTmte7T0w9Zlw1x5Ol6vV
 WT8fu7HAliysjpiEKAglrgcmYDAJ+vLI6ybTj6ZxcyXTQN7jexIXEeOMVIpIGRYN
 oAVqSWHlUYJO/wIZzpVOTh2mvlVw+EIMeNnIoOZmGhBH2EPGWAwto0adags0c7ws
 WsfIWFOv1zg4BeNer/BevWnMREJrco2uOWyIF8RITcG2n+nKuKTcnGTtWr+MO77D
 5iNImLHZOcZKk9lOHofaEvdN55sGtoUEriQC1gQa5LpFL6nawTs9erEQS3QT3xVn
 Z0+boaa5h7wxQVxLie0CjSqLnzl1rF/+HVx/Gg995zHUKld04mNqhtkwcCxqptIO
 1M0Y6qjGZkYPRXM7Wqz/D9tPSfGZXLLVi0zh5rn8B4rLEygc8SVEXpEtOlJAW5NP
 1UomYh2oBXkigGLDJAljgoNk4ZPCOP25JtHFgULIKIpgVUQVPYpPyCVtnQa+2il8
 7vrpez3omPj49yBFEjtynYq7vCjeTyxQ1K+5pjX9LVv9rU8YyrwE7tzjo4jve9vy
 gJmnB5AQ73/HTw==
 =EArG
 -----END PGP SIGNATURE-----

Merge tag 'tegra-for-4.12-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/dt

dt-bindings: Updates for v4.12-rc1

This contains an update for the flow controller device tree binding as
well as the addition of the binding for the GP10B GPU found on the new
Tegra186 (Parker) SoC.

* tag 'tegra-for-4.12-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  dt-bindings: Add documentation for GP10B GPU
  dt-bindings: tegra: Update compatible strings for Tegra flowctrl

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:28:42 -07:00
Olof Johansson 55de807595 soc/tegra: Core SoC changes for v4.12-rc1
This contains PMC support for Tegra186 as well as a proper driver for
 the flow controller found on SoCs up to Tegra210. This also turns the
 fuse driver into an explicitly non-modular driver.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAljmx1ITHHRyZWRpbmdA
 bnZpZGlhLmNvbQAKCRDdI6zXfz6zoWt2D/9hNQqNgxW+6QOq3EuxWHDPs6hWOHRy
 v13TM7cQg7Qc6zXnmc+SzEp5eT7+GbNNgtrQ7ukfzKPeDwbPXf+NwsprS+STayvF
 dxqtcem/6tID3WJxzYJRJY3d8hH3BCvQhJf+uF8V2za1F/f4f6mHDtUboPVO2LIa
 L4IdtXQEwoVyPdnH2GDdKG6uOHnufBLVsS+DFXWeuY/nPiTgFcBQAgOuNwFZK1/V
 FisKON2QIg0yh6Y7UjDGh5X9ODR2OC+9g1kGV7hY3tlvz/JovZxc8CPnQsPg2QR7
 1heGwNTHEOkAeClvRdAr+guV1wDvY4vA+2U1XeQeSLg3gq4lIfRKp8+xrwfnkyS+
 rmllTA/85LCiTO9slKoSdv6vSSgb7K549z/dYdIqwDTPU0GE1xzFF4DTvs2OwmtF
 y4ziCDM+6H1EgesZDcVZikVFjof+q8h2j1FEsloe6HjmhcJ42lQWRLFbEPk1XMec
 cWNynVMjRxaQP/8cJTHYpnpa6e6/Eqv1GhWYWl+9yqodJhBJtrzPZLaGKfYiaG2R
 QcG48WsBGDtV5zYKUEG5/LKNWaFvcAjhfi9JXh44FMBlBNZ+EyWThJPTvL06glk4
 SKaBx69Ft5fOHlIQG9/lT+u0RmLmmMkSNHeW/Zh9s08xeJhK3lHLnpT8s6kDxui5
 Nhid59CnZh8SnQ==
 =n4aM
 -----END PGP SIGNATURE-----

Merge tag 'tegra-for-4.12-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

soc/tegra: Core SoC changes for v4.12-rc1

This contains PMC support for Tegra186 as well as a proper driver for
the flow controller found on SoCs up to Tegra210. This also turns the
fuse driver into an explicitly non-modular driver.

* tag 'tegra-for-4.12-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  soc/tegra: Add initial flowctrl support for Tegra132/210
  soc/tegra: flowctrl: Add basic platform driver
  soc/tegra: Move Tegra flowctrl driver
  ARM: tegra: Remove unnecessary inclusion of flowctrl header
  soc: tegra: make fuse-tegra explicitly non-modular
  soc/tegra: Fix link errors with PMC disabled
  soc/tegra: Implement Tegra186 PMC support

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 06:16:25 -07:00
Olof Johansson fe8fee6901 ARM SOC PM domain support for 4.12
Dave Gerlach (5):
       PM / Domains: Add generic data pointer to genpd data struct
       PM / Domains: Do not check if simple providers have phandle cells
       dt-bindings: Add TI SCI PM Domains
       soc: ti: Add ti_sci_pm_domains driver
       ARM: keystone: Drop PM domain support for k2g
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJY5n1GAAoJEHJsHOdBp5c/HskP/RK+Q939tIdFI2joV0R2uBF8
 sSPHHfduY/GZpy+Mlqxjo5gYE1AxGY+rOw0YNWWvZ1hpkIgP4g0zC0yCxQaLnYF2
 VuEoZwaEcGDKsmTISoKkMp8tonxW2EOQUsYty8Iq66rGsrRgTVqmsM8ApJSqyo6l
 +nD/AQnWboNnKiJ3t6HE1xc8YLWFPiLfl5EgzR3OyXKfrRjQ7mg9SEddmnrOunLd
 T8fqVgAtOgcb7a5LIuGq/4ddSQPm38fDYSc4QtSmhZfgke94+xKHrBAcBVXNJOaC
 ESxvhu4l4xarj6aagWz7TmokFt7JNXgmcC9nZkU/YcKdidVN6dhF+MraFQpZnMAJ
 ZYFfz++6gNiFWKRnaQWmsXaCzgxlnpajJL5th39/izwFHKMWU87lXO5WSZnOdosA
 1Ph8M7zAmxjAE0R3TIFjRnT25spYxYqWNFhrCSpIuYODZNefAZqaJSP6WG7ab+Hy
 u9qpVjAYCxir36sS/pTHiiGDLlGiUM+3lOtT9o5xWZCv9gBLiYLziW33nKbgQR2s
 4KrfKnNq4Kkvx3rHM30GPzVXziliqS1TF/j6vl8Tx/m/RnXtT2DBknvW5c43NBbF
 Ad1Ux6JJ9M3b009wjo5sEWzemFlKKIuWh0ekvr3YYcVlGGqXDK7os4fvfsFPbHv+
 6CmNAQt6rbbGI+8pJC5w
 =ayBe
 -----END PGP SIGNATURE-----

Merge tag 'arm-soc-pmdomain' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers

ARM SOC PM domain support for 4.12

Dave Gerlach (5):
      PM / Domains: Add generic data pointer to genpd data struct
      PM / Domains: Do not check if simple providers have phandle cells
      dt-bindings: Add TI SCI PM Domains
      soc: ti: Add ti_sci_pm_domains driver
      ARM: keystone: Drop PM domain support for k2g

* tag 'arm-soc-pmdomain' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  ARM: keystone: Drop PM domain support for k2g
  soc: ti: Add ti_sci_pm_domains driver
  dt-bindings: Add TI SCI PM Domains
  PM / Domains: Do not check if simple providers have phandle cells
  PM / Domains: Add generic data pointer to genpd data struct

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 05:58:02 -07:00
Olof Johansson ec4c22e7c3 Allwinner DT changes for 4.12
As usual a number of changes, among which:
   - All the sun5i DTSI has been reworked based on the new documentation and
     the IPs that are actually found in all those SoCs. Part of that rework
     also brought the GR8 DTSI to include sun5i.dtsi
   - Mali devfreq and thermal throttling support on the A33
   - AC power supplies for the AXP209 and AXP22X PMIC
   - CAN support for the A20
   - CPUFreq-based thermal throttling for the A33
   - New board: NanoPi NEO Air
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJY5f8GAAoJEBx+YmzsjxAgvskQALR+tdfifBibZjtGsY/U/RXn
 AlnjH+epI0lIhaIpz59U6MQvejaw16UmMgJylauUDE4V21Vavzj2hmy4kpdkmHHX
 Etw7iih7vynTTBBNCsUt0chsVom7UrP54PtGY6jrhkwEC2Xz9O+1kjeEpMVvIQEp
 ErqFD9ibbmmjtdro2kliLRVQRyr5zwWKQ9IkWo3wTOUbJYl+d533Y+aAG7nzil3A
 ZEBmFtjXKiVojGvQiLIJXtaP9eASO1OwSUqYJ1F17NcCWbf5clhu3cddZMRNfv6Z
 CZqPU+Cm2cxSKEIGRTXQM3sWeLOQRGhQZIzFVYcHj2Rj8pC5Gq1SmTU4SBjC6plY
 G/r12UoVfsiswq/+p/Gz4iHHqz4lqjbBhiU4y7jzirJ3z8N21rvOwQ6Fe7ujSqWo
 fVbLk1rE0wrGAk8Y+YHJgXVT3CDBKHD/xfGmLaCiBKxQt19a1coc7SvZuMTj2013
 PPYoIixJwyUbQhOCjTnwtNP0T7JHpUsjDF2R+Rig2pUflSc3kH/Wn9OJBpL5SiEI
 a/Owv+OsyXUjsKf2ekga+5Y8e7e5nQ//nadvgo3/Kwh8diRyAz5tRtRdHqTN+/ho
 bzF9EgzfMTn7sZufRHqcgimYdh6mBjFn5yyNSeqBuT5NpGRFbo/zlKrFwgmKYdwg
 /8mUPwxAtaMCTtZCd40W
 =m9vZ
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-dt-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into next/dt

Allwinner DT changes for 4.12

As usual a number of changes, among which:
  - All the sun5i DTSI has been reworked based on the new documentation and
    the IPs that are actually found in all those SoCs. Part of that rework
    also brought the GR8 DTSI to include sun5i.dtsi
  - Mali devfreq and thermal throttling support on the A33
  - AC power supplies for the AXP209 and AXP22X PMIC
  - CAN support for the A20
  - CPUFreq-based thermal throttling for the A33
  - New board: NanoPi NEO Air

* tag 'sunxi-dt-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (38 commits)
  ARM: sun8i: sina33: add highest OPP of CPUs
  ARM: sun8i: a33: Add devfreq-based GPU cooling
  ARM: sun8i: a33: add CPU thermal throttling
  ARM: sun8i: a33: add thermal sensor
  ARM: dts: sun7i: fix device node ordering
  ARM: dts: sun4i: fix device node ordering
  ARM: dts: sun7i: Add can0_pins_a pinctrl settings
  ARM: dts: sun7i: Add CAN node
  ARM: dts: sun4i: Add can0_pins_a pinctrl settings
  ARM: dts: sun4i: Add CAN node
  ARM: sun7i: cubietruck: enable ACIN und USB power supply subnode
  ARM: dts: sun5i: Add interrupt for display backend
  dt-bindings: display: sun4i: Add display backend interrupt to device tree binding
  ARM: dts: sun7i: Use axp209.dtsi on A20-OLinuXino-Micro
  ARM: dts: sun6i: sina31s: Enable SPDIF out
  ARM: sun8i: sina33: add cpu-supply
  ARM: sun8i: a33: add all operating points
  ARM: sun5i: chip: enable ACIN power supply subnode
  ARM: dts: sun8i: sina33: enable ACIN power supply subnode
  ARM: dtsi: axp22x: add AC power supply subnode
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 05:37:06 -07:00
Olof Johansson dd85108475 Amlogic 64-bit DT updates for v4.12
- pinctrl: new pins for audio
 - clocks: more clocks exposed for GFX, audio
 - new board: Khadas Vim (S905X)
 - new board: HwaCom AmazeTV (S905X)
 - ethernet phy: add GPIO resets
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJY5DPWAAoJEFk3GJrT+8ZlieEP/0bGQcMBnjgLIGh49pMDqiUz
 1RAmVBeo/1yeq2WjI8a3VsN5W4fuHysH7DWTxI1GA7f9wVblyMBQTqvg2R8tfEVe
 EAS444Fj6xUzEYmWoBNETHmxWT40o+80B7BYm7zGrRqeQ0QMo7yAWBKHmmJ0nmNv
 qb/dLqTLbldRwh+5gLvgaH1UK2PdsNE+UHWThP6CPXIBe1WIxggmwDt0ItBlO17S
 wnBHjh1jzAroS51WVRc2aL0xmBrHgi20BtVxCg7jbQk6I4zDafk59pu1+Xuwaoiv
 CMWySeQq1wj0uOZ4OtkeTIgd8VuBt8ovcHIB/kpJEmJy8C2d2dkjuBD2IC7Qo3d7
 9p3NfE6E1vZZdT4//8i0sVQMX2OEiVWJfM/2hBlV4OLEQ+RR2U5gvUHBxJcnuC1B
 RHbK/OqZ7GyQZOG5O7OWiF4hG4dOFCCsbkleMcbAlm5BUvLaI6QUTufuQrsNzzvb
 c3dAuLldsNwBvpSqxYr1mKQ2YNh2M47DSgdut8qDaaPYx6LU4HcCZEVTe2q9Hn1h
 46cERmJoVOW40WEjYK/Nv+TpUNKzwF7Bz6fA7dsqb0ehEaHPFWvjD2mpCij60hvc
 J5dxZDQT8Y1lIkOcLRBdXYFp/NOVQoIAwfGSHleoHzclshILvV/O8hevsZpKFTKh
 ywM7owJLUAkDDYLIbNxS
 =/FCW
 -----END PGP SIGNATURE-----

Merge tag 'amlogic-dt64-redo' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into next/dt64

Amlogic 64-bit DT updates for v4.12
- pinctrl: new pins for audio
- clocks: more clocks exposed for GFX, audio
- new board: Khadas Vim (S905X)
- new board: HwaCom AmazeTV (S905X)
- ethernet phy: add GPIO resets

* tag 'amlogic-dt64-redo' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic: (41 commits)
  ARM64: dts: meson-gx: Add support for HDMI output
  ARM64: dts: meson-gx: Add shared CMA dma memory pool
  ARM64: dts: meson-gxbb-odroidc2: Enable SARADC node
  dt-bindings: clock: gxbb-clkc: Add GXL compatible variant
  clk: meson-gxbb: Expose GP0 dt-bindings clock id
  clk: meson-gxbb: Add MALI clock IDS
  dt-bindings: clk: gxbb: expose i2s output clock gates
  ARM64: dts: meson-gxl: add spdif output pins
  ARM64: dts: meson-gxl: add i2s output pins
  ARM64: dts: meson-gxbb: add spdif output pins
  ARM64: dts: meson-gxbb: add i2s output pins
  ARM64: dts: meson-gxbb: Add USB Hub GPIO hog
  ARM: dts: meson8b: Add gpio-ranges properties
  ARM: dts: meson8: Add gpio-ranges properties
  ARM64: dts: meson-gxl: Add gpio-ranges properties
  ARM64: dts: meson-gxbb: Add gpio-ranges properties
  ARM64: dts: meson-gx: Add Mali nodes for GXBB and GXL
  ARM64: dts: meson-gxl: Add missing pinctrl pins groups
  ARM64: dts: meson-gx: Prepend GX generic compatible like other nodes
  ARM64: dts: meson-gx: empty line cleanup
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 05:29:37 -07:00
Olof Johansson f0008e9b6c STM32 SOC updates for v4.12, round 1.
Highlights:
 ----------
  - Create a dedicated Kconfig for STM32 machine
  - Add support of STM32H743 MCU
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJY4n0QAAoJEH+ayWryHnCFkEoP/jvQ+8kBP7fyFUOz03DNHn5h
 22egNTEIaGl404ha66FUrT/Dq4MauwE4vrESgxjsMxWOX4AJkk6oy3IYqaiBWSY/
 LhHkeJ0hGB3XAT5px25h+aPt2sFUkU1wOJ7Y4cmCT5GzwaudfB1nze2/vNdGt0Sq
 9sAbxA10TXjtZ+AV5VB7A08fUWSyGFH9EL9wCLcjc1Juszb+y8mVHJ5Tlm17G5JJ
 0dcTqGZKSLkWEYWKlHEKm5xc8Ojpp7ZIsw9wQjDbDM2tD2X+jg/SQvIJ+RFDA0QN
 /A91urphaBmj+hxRGzclUaK3S+dlUPEIeZYRjJDW8FyjppyN4pwC/G39potClT1W
 IFVBgp+U4XD94Q42LWqbcJ2PBk90SUV0c+GyRmlbd5xmXu4+ltL4YCOUgfBXfqGO
 1amH14OhYNLUavSxJ5L84il5EhLJCxJJAbad7aL+zkcLlZ5eACa8ejiCBTxCNdSX
 nXHViYc7gj9H8ZGsxP+HQHzoy/wSduDqSvKiB1/BER9W0rCIdh/TbcyvwA1Bxqx3
 lEoXQS1ZYRDg6UJSBMpJpdIb9bDNRpgNwibH11s1gtB9V83i3xT4LhttwWqpzf9Q
 v1eh093UT2jA+f3VDKQUy/tTBbYeetTqKCPzEt2sn+/kVI0l5uS7EncKKgXFhr6M
 SztHrQ4rB93nrUBPHAW2
 =HSuP
 -----END PGP SIGNATURE-----

Merge tag 'stm32-soc-for-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into next/soc

STM32 SOC updates for v4.12, round 1.

Highlights:
----------
 - Create a dedicated Kconfig for STM32 machine
 - Add support of STM32H743 MCU

* tag 'stm32-soc-for-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
  ARM: stm32: Add a new SOC - STM32H743
  ARM: stm32: Introduce MACH_STM32H743 flag
  ARM: stm32: create dedicated kconfig for STM32 machine

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 05:23:33 -07:00
Olof Johansson ed50c4855e STM32 DT updates for v4.12, round 1
Highlights:
 ----------
 
  - ADD RTC support on STM32F746 MCU
  - Enable RTC on STM32F746 Eval board
  - Enable clocks on STM32F746 MCU
  - Enable DMA, pwm1 and pwm3 on STM32F429I Eval
  - Add support of STM32H743 MCU and his Eval board
  - Enable USB HS and FS on STM32F469 Disco board
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJY4n6WAAoJEH+ayWryHnCFaXYQAKmOBcBrU2RiZt/tn02lhEJI
 /BKTjFUBg9CCSMqT8xJvDtCJ3YLUwxqo4HhkvKnTZh7AQ1mSTdVScKrB0Le83271
 IOoAFBmCZCn9ShSgclBPiold1q5i7g/hZRagQwNwXHdQXt8GZxhpVzaYgZj7EtQ4
 B5ikmQCT9KagPSiY4M6X1pzRPRmqcN6alAYsIO8SoHrFpBXm8/TWqspn5pPhojIM
 4oWbGEwAxLR4J86TA2Eu+Yp/8FvGX8+W59tFbarlBPloKueHADZ72MfrTZ72vXf6
 y4s4JGctDOiLqRFBR6Pp3i8/F4d2pxtd7GsWHR12Mw8lQGHHkKZWs20vri+s6HiT
 qkjKWXdV4mwYis4vUB997NOYClbqTbURcUt7uRvFrDXD2gg3TnRGkP5WynEX8njS
 cnRhJ+1rS3iC2rvNtRGE9aadRRtxXVqVQ1HA2EeBeNGpVgFFPbdhPpt2ZDhC2PLf
 FRYQnxxVAngionqxNGytwKTHXSsVYufMINPyUZWxqUXN083+HAWemJCUTd6cC1ia
 I781iAjQDWyQzrG8jQtsEXPT2rSdrouVzu0CG642EDuU81CkAWz8vBkrjPj9m+9g
 fcd8RhRQTvcz0rePNBq/OLRojA7bVsDBBikAJJh6tCnwil8oJlaJ5DSbORe8J8Ez
 DlOoNIKk1byGfN6LrxKz
 =l7eq
 -----END PGP SIGNATURE-----

Merge tag 'stm32-dt-for-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into next/dt

STM32 DT updates for v4.12, round 1

Highlights:
----------

 - ADD RTC support on STM32F746 MCU
 - Enable RTC on STM32F746 Eval board
 - Enable clocks on STM32F746 MCU
 - Enable DMA, pwm1 and pwm3 on STM32F429I Eval
 - Add support of STM32H743 MCU and his Eval board
 - Enable USB HS and FS on STM32F469 Disco board

* tag 'stm32-dt-for-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
  dt-bindings: Document the STM32 USB OTG DWC2 core binding
  ARM: dts: stm32: Enable USB HS in FS mode (embedded phy) on stm32f429-disco
  ARM: dts: stm32: Enable USB FS on stm32f469-disco
  ARM: dts: stm32: Add USB FS support for STM32F429 MCU
  ARM: dts: stm32: Add STM32H743 MCU and STM32H743i-EVAL board
  ARM: dts: stm32: Enable pwm1 and pwm3 on stm32f429i-eval
  ARM: dts: stm32: Enable dma by default on stm32f4 adc
  ARM: dts: stm32: enable RTC on stm32746g-eval
  ARM: dts: stm32: Add RTC support for STM32F746 MCU
  ARM: dts: stm32: set HSE_RTC clock frequency to 1 MHz on stm32f746
  dt-bindings: mfd: Add STM32F7 RCC numeric constants into DT include file
  ARM: dts: stm32: Enable clocks for STM32F746 MCU

Signed-off-by: Olof Johansson <olof@lixom.net>
2017-04-19 05:22:29 -07:00
Mauro Carvalho Chehab 5c45d4a987 [media] vidioc-queryctrl.rst: fix menu/int menu references
The documentation incorrectly mentions MENU and INTEGER_MENU
at struct v4l2_querymenu table as if they were flags. They're
not: they're types.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-19 08:26:25 -03:00
Mauro Carvalho Chehab 242b0c4cc9 [media] pixfmt-meta-vsp1-hgo.rst: remove spurious '-'
Remove spurious '-' in the VSP1 hgo table.

This resulted in a weird dot character that also caused
the row to be double-height.

We used to have it on other tables, but we got rid of them
on changeset 8ed29e302d ("[media] subdev-formats.rst: remove
spurious '-'").

Fixes: 14d6653871 ("[media] v4l: Define a pixel format for the R-Car VSP1 1-D histogram engine")
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-19 08:01:18 -03:00
Hans Verkuil 8ed29e302d [media] subdev-formats.rst: remove spurious '-'
Remove spurious duplicate '-' in the Bayer Formats description. This resulted in a
weird dot character that also caused the row to be double-height.

The - character was probably used originally as indicator of an unused bit, but as the
number of columns was increased it was never used for the new columns.

Other tables do not use '-' either, so just remove it.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-19 07:30:03 -03:00
Cao jin bf4f5bf131 ACPI / doc: linuxized-acpica.txt: fix typos
Fix some typos in the linuxized-acpica.txt document.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
[ rjw: Subject / changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 12:14:04 +02:00
Paul E. McKenney 5f0d5a3ae7 mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU
A group of Linux kernel hackers reported chasing a bug that resulted
from their assumption that SLAB_DESTROY_BY_RCU provided an existence
guarantee, that is, that no block from such a slab would be reallocated
during an RCU read-side critical section.  Of course, that is not the
case.  Instead, SLAB_DESTROY_BY_RCU only prevents freeing of an entire
slab of blocks.

However, there is a phrase for this, namely "type safety".  This commit
therefore renames SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU in order
to avoid future instances of this sort of confusion.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <linux-mm@kvack.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
[ paulmck: Add comments mentioning the old name, as requested by Eric
  Dumazet, in order to help people familiar with the old name find
  the new one. ]
Acked-by: David Rientjes <rientjes@google.com>
2017-04-18 11:42:36 -07:00
Paul E. McKenney 9226b10d78 rcu: Place guard on rcu_all_qs() and rcu_note_context_switch() actions
The rcu_all_qs() and rcu_note_context_switch() do a series of checks,
taking various actions to supply RCU with quiescent states, depending
on the outcomes of the various checks.  This is a bit much for scheduling
fastpaths, so this commit creates a separate ->rcu_urgent_qs field in
the rcu_dynticks structure that acts as a global guard for these checks.
Thus, in the common case, rcu_all_qs() and rcu_note_context_switch()
check the ->rcu_urgent_qs field, find it false, and simply return.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
2017-04-18 11:38:18 -07:00
Paul E. McKenney 0f9be8cabb rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle()
The rcu_momentary_dyntick_idle() function scans the RCU flavors, checking
that one of them still needs a quiescent state before doing an expensive
atomic operation on the ->dynticks counter.  However, this check reduces
overhead only after a rare race condition, and increases complexity.  This
commit therefore removes the scan and the mechanism enabling the scan.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-18 11:38:18 -07:00
Paul E. McKenney 9577df9a31 rcu: Pull rcu_qs_ctr into rcu_dynticks structure
The rcu_qs_ctr variable is yet another isolated per-CPU variable,
so this commit pulls it into the pre-existing rcu_dynticks per-CPU
structure.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-18 11:38:17 -07:00
Paul E. McKenney abb06b9948 rcu: Pull rcu_sched_qs_mask into rcu_dynticks structure
The rcu_sched_qs_mask variable is yet another isolated per-CPU variable,
so this commit pulls it into the pre-existing rcu_dynticks per-CPU
structure.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-18 11:38:17 -07:00
Dmitry Torokhov 153292e24a Input: xpad - do not suggest writing to Dominic
Do not recommend people write to Dominic, rather everyone should be using
linux-input mailing list.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-18 11:28:38 -07:00
Benjamin Herrenschmidt 88a286f7e9 ftgmac100: Document device-tree binding
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-18 14:11:09 -04:00
David Woodhouse e854d8b2a8 PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space
This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than just an eventual -EINVAL from
pci_mmap_page_range().

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-18 13:02:26 -05:00
David Woodhouse ae749c7ab4 PCI: Add arch_can_pci_mmap_wc() macro
Most of the almost-identical versions of pci_mmap_page_range() silently
ignore the 'write_combine' argument and give uncached mappings.

Yet we allow the PCIIOC_WRITE_COMBINE ioctl in /proc/bus/pci, expose the
'resourceX_wc' file in sysfs, and allow an attempted mapping to apparently
succeed.

To fix this, introduce a macro arch_can_pci_mmap_wc() which indicates
whether the platform can do a write-combining mapping.  On x86 this ends up
being pat_enabled(), while the few other platforms that support it can just
set it to a literal '1'.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-18 13:01:42 -05:00
Greg Kroah-Hartman d47e538235 Fourth set of IIO new device support, features and cleanups for the 4.12 cycle
New device support
 * max1117, 1118 and 1119
   - new ADC driver
 * max9611
   - new ADC driver
 * pm8xxx hk/xoadc
   - new driver with some shared features broken out from the SPMI vadc.
 * sun4i-gpadc
   - A33 thermal sensor support (with associated rework)
 * stm32-dac
   - new driver and bindings
 * stm32 trigger
   - enable support of quadrature encoder device and counter modes
 
 Features
 * apds9960
   - use the runtime pm for normal suspend
 * stm32-adc
   - add opition to sest resolution via devicetree
 * xoadc
   - augment DT bindings to deal with some weird mux cases
 
 Cleanups
 * ad5933
   - protect direct mode using claim and release helpers
 * ade7759
   - S_IRUGO and friends to octal in two goes
 * adis16203
   - drop unnecessary brackets
 * hid-sensor
   - fix unbalanced pm_runtieme_enable error when probing after remove
 * lsm6dsx
   - use actual part numbers for device name when known
   - simplify data read pin parsing
 * mpu3050
   - avoid double reporting errors
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCAAvFiEEbilms4eEBlKRJoGxVIU0mcT0FogFAljxPf4RHGppYzIzQGtl
 cm5lbC5vcmcACgkQVIU0mcT0FojZfA//UUaFcaEiMJjoUwBQlOM49nueGcAlOOOz
 blMYe6JIIm3DYjEJnNhlA1Wn83JVitGQopQ4Tt9yrsxc3urt6GiAiRCK1Lwuyauw
 l1IrdsV9tzbPrauL8UxZYygIYHZx6ltKnpbSHCrXaA2BOTIYzgIBDGmRv+MPutwW
 iaW+dKJVW5G/5VV0aIaJc2w5wXujFcWkZoiTJgZBHhGJJ5AY6zyA3tBEOIY7K3KO
 z4EIY6V9pvVaSgvuWGVWQjtYwjqSSqp5J5Ih7ATpp4hPwi+XIudWqaiq1y2rHQKM
 Y/wqjz+W/NyAJGSFEnub7gE4wGauQtxMiOLTenrfDWkFxF0YRkunylY8Kwcgvmhh
 +TdHhazlfIHca5z/MJ0dg/4UPj75o2CtB+N1NyNMjx/K7Juu2MmcKNShLa/l68jT
 rYEuNQUyhTvNuhlYPTcYmGbL7VbyXJzgbVbk9/Dd1hcS+p/oqn18ulGsWxcj5kEI
 ME+vHOakq02GTAQEG2FLvE604fTt/dHyXdYFsDY0RCm9ZSURvRqFLYpkxyrQFe+P
 yhC9b6ouW+dPGez0RmwPZTWnH0E6eN5b13yR3ILewj/NUVA6cjlm0inhnck1IwFe
 NWVQiMz1a2DsXfk5VjBQVlsipHxW9rs8SArdWnndDpbSErQJT/KrCxantmkNciYw
 oXf1eFCo/MQ=
 =zHqs
 -----END PGP SIGNATURE-----

Merge tag 'iio-for-4.12d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Fourth set of IIO new device support, features and cleanups for the 4.12 cycle

New device support
* max1117, 1118 and 1119
  - new ADC driver
* max9611
  - new ADC driver
* pm8xxx hk/xoadc
  - new driver with some shared features broken out from the SPMI vadc.
* sun4i-gpadc
  - A33 thermal sensor support (with associated rework)
* stm32-dac
  - new driver and bindings
* stm32 trigger
  - enable support of quadrature encoder device and counter modes

Features
* apds9960
  - use the runtime pm for normal suspend
* stm32-adc
  - add opition to sest resolution via devicetree
* xoadc
  - augment DT bindings to deal with some weird mux cases

Cleanups
* ad5933
  - protect direct mode using claim and release helpers
* ade7759
  - S_IRUGO and friends to octal in two goes
* adis16203
  - drop unnecessary brackets
* hid-sensor
  - fix unbalanced pm_runtieme_enable error when probing after remove
* lsm6dsx
  - use actual part numbers for device name when known
  - simplify data read pin parsing
* mpu3050
  - avoid double reporting errors
2017-04-18 17:13:31 +02:00
Greg Kroah-Hartman ac9d947683 Two changes for this v4.12-rc1:
- Add sysfs entry for role switch
 - Update gadget state after gadget back from suspend
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJY9XecAAoJEEhZKYFQ1nG7PuQH+wR+qFiaswoJA3q+2sdqQDdD
 vN1FLT93o3ObgnmYwbZZDxdGeB6e+AJ/K8tQCOVqm8AnaNOzDwCYJoBTa5nPaS5k
 c+E4JlciG2NJG1s+eGVhZUPTQD3qS47vkgHymgtlTbQPDJDZy7k5nu7H1GSI7mvM
 7AH4uavzMIqsZcQTAln6BvIr2FQHh996LnUHDvYSZ6Y+8cws9IPMbSIiao3s3SiZ
 fULYJbVfDOd0LuxHOn7AdKrmlDJ/Gi2vmR4xQLlwvXEYk5/NUcSc1Yo5lVZcDUBR
 MzX4bLvhLi4SNLXLJhfqYjXcPXddXxawL/TRGDmT0B/1N8CCtBWJkNpIgx9q6dk=
 =opDd
 -----END PGP SIGNATURE-----

Merge tag 'usb-ci-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next

Peter writes:

Two changes for this v4.12-rc1:
- Add sysfs entry for role switch
- Update gadget state after gadget back from suspend
2017-04-18 16:52:20 +02:00
Mauro Carvalho Chehab 699896278e Input: xpad - don't use literal blocks inside footnotes
Unfortunately, Sphinx (or LaTeX) can't handle literal blocks inside
footnotes. So, just use normal text for the two literal code-blocks that
documents the output of /sys/kernel/debug/usb/devices for xpad devices.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:35 -07:00
Mauro Carvalho Chehab f56408c960 Input: xpad - note that usb/devices is now at /sys/kernel/debug/
The /proc/bus/usb/devices got moved to sysfs. It is now sitting at:

        /sys/kernel/debug/usb/devices

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:35 -07:00
Dmitry Torokhov ad6493800b Input: docs - freshen up introduction
Stop saying that API is experimental and that only USB is supported,
acknowledge that evdev is the preferred interface, and remove paragraph
encouraging people sending snail mail to Vojtech :) along with his email.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:34 -07:00
Dmitry Torokhov b08c118cde Input: docs - split input docs into kernel- and user-facing
Split input documentation into several groups: kernel- and user-facing, and
notes about individual device drivers. Move device drivers docs into a
separate subdirectory.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:34 -07:00
Dmitry Torokhov 6c6d5752da Input: docs - note that MT-A protocol is obsolete
Everyone should be using multitouch protocol B (slotted) now.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:12 -07:00
Dmitry Torokhov 4c79e98be5 Input: docs - update joystick documentation a bit
Consolidate use instructions and userspace API notes into the same chapter;
remove completely obsolete references, move into a separate subdirectory.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:11 -07:00
Dmitry Torokhov 15e591a717 Input: docs - remove disclaimer/GPL notice
This is just a part of kernel documentation, it does not require explicit
license notice.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:10 -07:00
Dmitry Torokhov b8ccf31737 Input: fix "Game console" heading level in joystick documentation
The heading level should be the same as for other devices.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:10 -07:00
Dmitry Torokhov 01ef660172 Input: rotary-encoder - remove references to platform data from docs
The driver has been converted to use generic device properties, so
stop referring to platform data.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:09 -07:00
Dmitry Torokhov b8a9156096 Input: move documentation for Amiga CD32
Move the documentation for Amiga CD32 together with other parallel port
joysticks.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-04-17 20:19:09 -07:00
Sakari Ailus 30b2db3174 [media] docs-rst: Make the CSI-2 bus initialisation documentation match reality
Update the CSI-2 bus documentation to tell that the LP-11 mode is not
mandatory as there are transmitters that cannot be explicitly set to LP-11
mode. Instead, say that this what the transmitter drivers shall do if
possible.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-17 16:44:09 -03:00
David S. Miller 450cc8cce2 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:

====================
pull request: bluetooth-next 2017-04-14

Here's the main batch of Bluetooth & 802.15.4 patches for the 4.12
kernel.

 - Many fixes to 6LoWPAN, in particular for BLE
 - New CA8210 IEEE 802.15.4 device driver (accounting for most of the
   lines of code added in this pull request)
 - Added Nokia Bluetooth (UART) HCI driver
 - Some serdev & TTY changes that are dependencies for the Nokia
   driver (with acks from relevant maintainers and an agreement that
   these come through the bluetooth tree)
 - Support for new Intel Bluetooth device
 - Various other minor cleanups/fixes here and there

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-17 15:00:57 -04:00
Greg Kroah-Hartman 15a0654851 Merge 4.11-rc7 into tty-next
We want the tty patch revert in here to handle merges and future work
properly.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-17 09:07:37 +02:00
Wolfram Sang 69e620f866 Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-4.12
Pull in changes from the i2c-mux subsubsystem:

"Here are a new LTC4306/5 driver, a fix needed by the RT kernel and some
error message cleanup."
2017-04-16 21:44:37 +02:00
Javier González a4bd217b43 lightnvm: physical block device (pblk) target
This patch introduces pblk, a host-side translation layer for
Open-Channel SSDs to expose them like block devices. The translation
layer allows data placement decisions, and I/O scheduling to be
managed by the host, enabling users to optimize the SSD for their
specific workloads.

An open-channel SSD has a set of LUNs (parallel units) and a
collection of blocks. Each block can be read in any order, but
writes must be sequential. Writes may also fail, and if a block
requires it, must also be reset before new writes can be
applied.

To manage the constraints, pblk maintains a logical to
physical address (L2P) table,  write cache, garbage
collection logic, recovery scheme, and logic to rate-limit
user I/Os versus garbage collection I/Os.

The L2P table is fully-associative and manages sectors at a
4KB granularity. Pblk stores the L2P table in two places, in
the out-of-band area of the media and on the last page of a
line. In the cause of a power failure, pblk will perform a
scan to recover the L2P table.

The user data is organized into lines. A line is data
striped across blocks and LUNs. The lines enable the host to
reduce the amount of metadata to maintain besides the user
data and makes it easier to implement RAID or erasure coding
in the future.

pblk implements multi-tenant support and can be instantiated
multiple times on the same drive. Each instance owns a
portion of the SSD - both regarding I/O bandwidth and
capacity - providing I/O isolation for each case.

Finally, pblk also exposes a sysfs interface that allows
user-space to peek into the internals of pblk. The interface
is available at /dev/block/*/pblk/ where * is the block
device name exposed.

This work also contains contributions from:
  Matias Bjørling <matias@cnexlabs.com>
  Simon A. F. Lund <slund@cnexlabs.com>
  Young Tack Jin <youngtack.jin@gmail.com>
  Huaicheng Li <huaicheng@cs.uchicago.edu>

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-16 10:06:33 -06:00
David S. Miller 6b6cbc1471 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts were simply overlapping changes.  In the net/ipv4/route.c
case the code had simply moved around a little bit and the same fix
was made in both 'net' and 'net-next'.

In the net/sched/sch_generic.c case a fix in 'net' happened at
the same time that a new argument was added to qdisc_hash_add().

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-15 21:16:30 -04:00
Ramiro Oliveira 3bebcc4d6a [media] Documentation: DT: Add OV5647 bindings
Create device tree bindings documentation.

Signed-off-by: Ramiro Oliveira <roliveir@synopsys.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 23:00:55 -03:00
Todor Tomov 09c716af36 [media] media: i2c/ov5645: add the device tree binding document
Add the document for ov5645 device tree binding.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:58:10 -03:00
Hans Verkuil aacfed858f [media] buffer.rst: clarify how V4L2_CTRL_FLAG_MODIFY_LAYOUT/GRABBER are used
Explain when the V4L2_CTRL_FLAG_MODIFY_LAYOUT and
V4L2_CTRL_FLAG_MODIFY_GRABBER flags should be used.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:55:32 -03:00
Hans Verkuil bf587efff1 [media] vidioc-queryctrl.rst: document V4L2_CTRL_FLAG_MODIFY_LAYOUT
Document this new control flag.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:53:36 -03:00
Niklas Söderlund 5deb1c04c9 [media] v4l: Define a pixel format for the R-Car VSP1 2-D histogram engine
The format is used on the R-Car VSP1 video queues that carry
2-D histogram statistics data.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:49:06 -03:00
Laurent Pinchart 14d6653871 [media] v4l: Define a pixel format for the R-Car VSP1 1-D histogram engine
The format is used on the R-Car VSP1 video queues that carry
1-D histogram statistics data.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:43:58 -03:00
Laurent Pinchart fb9ffa6a7f [media] v4l: Add metadata buffer type and format
The metadata buffer type is used to transfer metadata between userspace
and kernelspace through a V4L2 buffers queue. It comes with a new
metadata capture capability and format description.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: removed left-over 'experimental' note]
[hans.verkuil@cisco.com: add newline after _v4l2-meta-format label]

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:37:02 -03:00
Laurent Pinchart 99bb078eee [media] v4l: Clearly document interactions between formats, controls and buffers
V4L2 exposes parameters that influence buffers sizes through the format
ioctls (VIDIOC_G_FMT, VIDIOC_TRY_FMT, VIDIOC_S_FMT, and possibly
VIDIOC_G_SELECTION and VIDIOC_S_SELECTION). Other parameters not part of
the format structure may also influence buffer sizes or buffer layout in
general. One existing such parameter is rotation, which is implemented
by the V4L2_CID_ROTATE control and thus exposed through the V4L2 control
ioctls.

The interaction between those parameters and buffers is currently only
partially specified by the V4L2 API. In particular interactions between
controls and buffers isn't specified at all. The behaviour of the
VIDIOC_S_FMT and VIDIOC_S_SELECTION ioctls when buffers are allocated is
also not fully specified.

This patch clearly defines and documents the interactions between
formats, selections, controls and buffers.

The preparatory discussions for the documentation change considered
completely disallowing controls that change the buffer size or layout,
in favour of extending the format API with a new ioctl that would bundle
those controls with format information. The idea has been rejected, as
this would essentially be a restricted version of the upcoming request
API that wouldn't bring any additional value.

Another option we have considered was to mandate the use of the request
API to modify controls that influence buffer size or layout. This has
also been rejected on the grounds that requiring the request API to
change rotation even when streaming is stopped would significantly
complicate implementation of drivers and usage of the V4L2 API for
applications.

Applications will however be required to use the upcoming request API to
change at runtime formats or controls that influence the buffer size or
layout, because of the need to synchronize buffers with the formats and
controls. Otherwise there would be no way to interpret the content of a
buffer correctly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-14 22:34:26 -03:00
Omar Sandoval 00e043936e blk-mq: introduce Kyber multiqueue I/O scheduler
The Kyber I/O scheduler is an I/O scheduler for fast devices designed to
scale to multiple queues. Users configure only two knobs, the target
read and synchronous write latencies, and the scheduler tunes itself to
achieve that latency goal.

The implementation is based on "tokens", built on top of the scalable
bitmap library. Tokens serve as a mechanism for limiting requests. There
are two tiers of tokens: queueing tokens and dispatch tokens.

A queueing token is required to allocate a request. In fact, these
tokens are actually the blk-mq internal scheduler tags, but the
scheduler manages the allocation directly in order to implement its
policy.

Dispatch tokens are device-wide and split up into two scheduling
domains: reads vs. writes. Each hardware queue dispatches batches
round-robin between the scheduling domains as long as tokens are
available for that domain.

These tokens can be used as the mechanism to enable various policies.
The policy Kyber uses is inspired by active queue management techniques
for network routing, similar to blk-wbt. The scheduler monitors
latencies and scales the number of dispatch tokens accordingly. Queueing
tokens are used to prevent starvation of synchronous requests by
asynchronous requests.

Various extensions are possible, including better heuristics and ionice
support. The new scheduler isn't set as the default yet.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-14 14:06:58 -06:00
Christoph Hellwig 8425339492 remove the mg_disk driver
This drivers was added in 2008, but as far as a I can tell we never had a
single platform that actually registered resources for the platform driver.

It's also been unmaintained for a long time and apparently has a ATA mode
that can be driven using the IDE/libata subsystem.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-14 14:00:49 -06:00
Fabrice Gasnier 48428d1732 dt-bindings: iio: stm32-dac: Add support for STM32 DAC
Document STMicroelectronics STM32 DAC (digital-to-analog converter).

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-14 16:35:44 +01:00
Vikas Shivappa a9cad3d4f0 Documentation, x86: Intel Memory bandwidth allocation
Update the 'intel_rdt_ui' documentation to have Memory bandwidth(b/w)
allocation interface usage.

Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Cc: ravi.v.shankar@intel.com
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: vikas.shivappa@intel.com
Link: http://lkml.kernel.org/r/1491611637-20417-2-git-send-email-vikas.shivappa@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-14 16:10:07 +02:00
Akinobu Mita a9e9c7153e iio: adc: add max1117/max1118/max1119 ADC driver
This adds max1117/max1118/max1119 8-bit, dual-channel ADC driver.

This new driver uses the zero length spi_transfers with the cs_change
flag set and/or the non-zero delay_usecs.

1. The zero length transfer with the spi_transfer.cs_change set is
required in order to select CH1.  The chip select line must be brought
high and low again without transfer.

2. The zero length transfer with the spi_transfer.delay_usecs > 0 is
required for waiting the conversion to be complete.  The conversion
begins with the falling edge of the chip select.  During the conversion
process, SCLK is ignored.

These two usages are unusual.  But the spi controller drivers that use
a default implementation of transfer_one_message() are likely to work.
(I've tested this adc driver with spi-omap2-mcspi and spi-xilinx)

On the other hand, some spi controller drivers that have their own
transfer_one_message() may not work.  But at least for the zero length
transfer with delay_usecs > 0, I'm proposing a new testcase for the
spi-loopback-test that can test whether the delay_usecs setting has
taken effect.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-14 15:09:06 +01:00
Benjamin Gaignard 2a830a45ff iio: stm32 trigger: Add counter enable modes
Device counting could be controlled by the level or the edges of
a trigger.
in_count0_enable_mode attibute allow to set the control mode.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-14 15:09:04 +01:00
Benjamin Gaignard 4adec7da05 iio: stm32 trigger: Add quadrature encoder device
One of the features of STM32 trigger hardware block is a quadrature
encoder that can counts up/down depending of the levels and edges
of the selected external pins.

This patch allow to read/write the counter, get it direction,
set/get quadrature modes and get scale factor.

When counting up preset value is the limit of the counter.
When counting down the counter start from preset value down to 0.
This preset value could be set/get by using
/sys/bus/iio/devices/iio:deviceX/in_count0_preset attribute.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Reviewed-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-14 15:08:31 +01:00
Stefan Agner 8566f70c8a rtc: ds1307: support m41t0 variant
The m41t0 variant is very similar to the already supported m41t00
variant, with the notable exception of the oscillator fail bit.
The data sheet notes:

  If the oscillator fail (OF) bit is internally set to a '1,' this
  indicates that the oscillator has either stopped, or was stopped
  for some period of time and can be used to judge the validity of
  the clock and date data.

The bit will get cleared with a regular write of the system time,
so no changes are needed to clear it.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-04-14 12:08:53 +02:00
Yuyang Du 76d034edcf sched/Documentation: Add 'sched-pelt' tool
Add a user-space program to compute/generate the PELT constants.

The kernel/sched/sched-pelt.h header will contain the output of
this program.

Signed-off-by: Yuyang Du <yuyang.du@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Cc: dietmar.eggemann@arm.com
Cc: matt@codeblueprint.co.uk
Cc: morten.rasmussen@arm.com
Cc: pjt@google.com
Cc: umgwanakikbuti@gmail.com
Cc: vincent.guittot@linaro.org
Link: http://lkml.kernel.org/r/1486935863-25251-2-git-send-email-yuyang.du@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-14 10:26:35 +02:00
Matthew R. Ochs 8fa4f1770d scsi: cxlflash: Remove port configuration assumptions
At present, the cxlflash driver only supports hardware with two FC ports. The
code was initially designed with this assumption and is dependent on having
two FC ports - adding more ports will break logic within the driver.

To mitigate this issue, remove the existing port assumptions and transition
the code to support more than two ports. As a side effect, clarify the
interpretation of the DK_CXLFLASH_ALL_PORTS_ACTIVE flag.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-04-13 22:55:41 -04:00
Peter Chen a932a8041f usb: chipidea: core: add sysfs group
Sometimes, the user needs to adjust some properties for controllers, eg
the role for controller, we add sysfs group for them.

The attribute 'role' is used to switch host/gadget role dynamically, the
uewr can read the current role, and write the other role compare to
current one to finish the switch.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
2017-04-14 09:26:37 +08:00
David Lechner 11ecb0d234 dt-bindings: power: supply: New bindings for LEGO MINDSTORMS EV3 battery
This add a new device tree binding for LEGO MINDSTORMS EV3 battery. The EV3
has some built-in capability for monitoring the attached battery.

Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:35 +02:00
Javier Martinez Canillas c67c372ca6 power: supply: ltc2941-battery-gauge: Add vendor to compatibles in binding
The DT binding document for LTC2941 and LTC2943 battery gauges did not use
a vendor prefix in the listed compatible strings. The driver says that the
manufacturer is Linear Technology which is "lltc" in vendor-prefixes.txt.

There isn't an upstream Device Tree source file that has nodes defined for
these devices, so there's no need to keep the old compatible strings.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Tony Lindgren 0c9888e3c1 power: supply: cpcap-charger: Add minimal CPCAP PMIC battery charger
The custom CPCAP PMIC used on Motorola phones such as Droid 4 has a
USB battery charger. It can optionally also have a companion chip that
is used for wireless charging.

The charger on CPCAP also can feed VBUS for the USB host mode. This
can be handled by the existing kernel phy_companion interface.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Enric Balletbo i Serra cbe5c28789 dt-bindings: power/supply: rename max8925_batter.txt to max8925_battery.txt
Fix the max8925_batter typo in the file name.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:34 +02:00
Linus Walleij ba443b5ab4 power: reset: Add Gemini poweroff DT bindings
This adds device tree bindings to the power management controller
in the Gemini SoC.

Cc: devicetree@vger.kernel.org
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Guy Shapiro f2c199db47 power: reset: syscon-poweroff: add a mask property
Make the syscon-poweroff driver accept value and mask instead of
just value.

Prior to this patch, the property name for the value was 'mask'. If
only the mask property is defined on a node, maintain compatibility
by using it as the value.

Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2017-04-14 01:41:33 +02:00
Rob Herring f0c660e04f dt-bindings: net: Add TI WiLink shared transport binding
Add serial slave device binding for the TI WiLink series of Bluetooth/FM/GPS
devices.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: netdev@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-13 19:22:53 +02:00
Russell King 6d6a331f44 dt-bindings: allow up to three clocks for orion-mdio
Armada 8040 needs three clocks to be enabled for MDIO accesses to work.
Update the binding to allow the extra clocks to be specified.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-13 10:59:11 -04:00
Russell King 2c26122e2c dt-bindings: correct marvell orion MDIO binding document
Correct the Marvell Orion MDIO binding document to properly reflect the
cases where an interrupt is present.  Augment the examples to show this.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-13 10:59:11 -04:00
Christophe Lombard f24be42aab cxl: Add psl9 specific code
The new Coherent Accelerator Interface Architecture, level 2, for the
IBM POWER9 brings new content and features:
- POWER9 Service Layer
- Registers
- Radix mode
- Process element entry
- Dedicated-Shared Process Programming Model
- Translation Fault Handling
- CAPP
- Memory Context ID
    If a valid mm_struct is found the memory context id is used for each
    transaction associated with the process handle. The PSL uses the
    context ID to find the corresponding process element.

Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
[mpe: Fixup comment formatting, unsplit long strings]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-13 23:34:31 +10:00
Sebastian Reichel 1286be270e dt-bindings: net: bluetooth: Add nokia-bluetooth
Add binding document for serial bluetooth chips using
Nokia H4+ protocol.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-13 10:32:23 +02:00
Michal Hocko ffc10d82ff ACPI / scan: Drop support for force_remove
/sys/firmware/acpi/hotplug/force_remove was presumably added to support
auto offlining in the past. This is, however, inherently dangerous for
some hotplugable resources like memory. The memory offlining fails when
the memory is still in use and cannot be dropped or migrated. If we
ignore the failure we are basically allowing for subtle memory
corruption or a crash.

We have actually noticed the later while hitting BUG() during the memory
hotremove (remove_memory):
	ret = walk_memory_range(PFN_DOWN(start), PFN_UP(start + size - 1), NULL,
			check_memblock_offlined_cb);
	if (ret)
		BUG();

it took us quite non-trivial time realize that the customer had
force_remove enabled. Even if the BUG was removed here and we could
propagate the error up the call chain it wouldn't help at all because
then we would hit a crash or a memory corruption later and harder to
debug. So force_remove is unfixable for the memory hotremove. We haven't
checked other hotplugable resources to be prone to a similar problems.

Remove the force_remove functionality because it is not fixable currently.
Keep the sysfs file and report an error if somebody tries to enable it.
Encourage users to report about the missing functionality and work with
them with an alternative solution.

Reviewed-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-13 03:51:47 +02:00
Dave Airlie ab6eb211b0 drm/panel: Changes for v4.12-rc1
This contains two new drivers for a Sitronix and a Samsung panel as well
 as two new panels supported by the panel-simple driver.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAljuZjgTHHRyZWRpbmdA
 bnZpZGlhLmNvbQAKCRDdI6zXfz6zodk+D/9rDUE/JY8WCqD0Xcu0kdMdeV2TVHxA
 M9uMMrywxdW4uGxmpW4NnRFNgAfYfjeOBRXCys41pUnkvjYPi4+/xeEjaFQB8xV5
 DVQmGXzsS8ytdztpa/7Q1EVGhvPeEXUU6Ye6PPm2ARlkmQpvMGX8wGHcuLTlYu9n
 vH6WWfRAx/tFoDqVY3MQ8aCVyeNTTrHXRsGoysVDCscNG3CZKYPo5FT1LIClRiAx
 pm/OrZfeTCZnaMLnWoQtN75NV8Q1slBejz7Yy7bAPLoMDFsoWKErquwZ5opLGxWH
 OkARiwxkKT2bXAI7GPce+TPp3tO76VTkq8a2ZuuGuOQQpEBU1s0wMYI9CfPYAtO6
 OOsfa81PKFn1OEa+LMxxtbv+1ubqyNHGrplRlPU4hW8PC99Ld7e8UQELQOsjJtXf
 MqSlc0RY04mdAs6CMIFhFEFnsuQDcjYLJ0IFLmRyVYm+/psag3di/2+/sZmQTcBv
 SwhG751tQoycINjTHInseL3xGRafCZPY7rIQ65Zx5VDNeXOJmjTOCn/f8VE/ANs/
 ZqOd0HFA34wV6ygtu3JXnQyH/eCon1cAgvNYCGnjZh1u0mOujOHK+rGGEF9rgD+Z
 vkPajZFPKlRQqRLpiajWreFuYEVkR1M1hn2TWgOE5sK5iWPgCluGpl6diq/WJMiM
 F+hjamxLMVxH/g==
 =zAVl
 -----END PGP SIGNATURE-----

Merge tag 'drm/panel/for-4.12-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/panel: Changes for v4.12-rc1

This contains two new drivers for a Sitronix and a Samsung panel as well
as two new panels supported by the panel-simple driver.

* tag 'drm/panel/for-4.12-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/panel: simple: Add support for Winstar WF35LTIACD
  devicetree: add vendor prefix for Winstar Display Corp.
  drm/panel: Add driver for sitronix ST7789V LCD controller
  dt-bindings: display: panel: Add bindings for the Sitronix ST7789V panel
  drm/panel: Add support for S6E3HA2 panel driver on TM2 board
  dt-bindings: Add support for Samsung s6e3ha2 panel binding
  drm/panel: simple: Add support for Ampire AM-480272H3TMQW-T01H
  dt-bindings: Add Ampire AM-480272H3TMQW-T01H panel
2017-04-13 06:17:40 +10:00
Harry Morris ab3916f7fe ieee802154: Add device tree documentation for CA8210
Signed-off-by: Harry Morris <h.morris@cascoda.com>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12 22:02:38 +02:00
Logan Gunthorpe 52eabba5bc switchtec: Add IOCTLs to the Switchtec driver
Add a couple of special IOCTLs to:

* Inform userspace of firmware partition locations
* Pass event counts and allow userspace to wait on events
* Translate PFF numbers used by the switch to port numbers

[Dan Carpenter <dan.carpenter@oracle.com>: fix off-by-one in
ioctl_event_ctl()]
Tested-by: Krishna Dhulipala <krishnad@fb.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Stephen Bates <stephen.bates@microsemi.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Wei Zhang <wzhang@fb.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
2017-04-12 12:23:37 -05:00
Logan Gunthorpe 5d8e1881f4 switchtec: Add sysfs attributes to the Switchtec driver
Add a few read-only sysfs attributes which provide some device information
that is exposed from the devices, primarily component and device names and
versions.

These are documented in Documentation/ABI/testing/sysfs-class-switchtec.

Tested-by: Krishna Dhulipala <krishnad@fb.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Stephen Bates <stephen.bates@microsemi.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Wei Zhang <wzhang@fb.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-12 12:23:37 -05:00
Logan Gunthorpe 44fc691b4f switchtec: Add user interface documentation
Add standard documentation for the sysfs switchtec attributes and a RST
formatted text file which documents the char device interface.  Jonathan
Corbet has indicated he will move this to a new user-space developer
documentation book once it's created.

Tested-by: Krishna Dhulipala <krishnad@fb.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Stephen Bates <stephen.bates@microsemi.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Wei Zhang <wzhang@fb.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
2017-04-12 12:23:37 -05:00
Michael Turquette 0d7a5328db Amlogic clock driver updates for v4.12
- meson8: add some new PLLs
 - new clocks for Mali
 - misc fixes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJY5CeGAAoJEFk3GJrT+8Zlp8MP/01Po8BB0Hamo3SGIckzHIXn
 4yYHnX4kYIGAHw4E1jki0Kz/3TxUSpUm4LWkcYloesPxnXipy2rlYJDhoFF1+QBM
 A/Y6Tx9G6sTEmk/20HDzof7N1DzfGAdj+NJd3IMXaOIbP8XFBXgdRktB2kSUu0ZM
 YPvlh5EjkWVhE5I+JqIfxSqAHW9+DOf17rhmch1wEXXMuVbtqPhm/DFd9+Ux+4WF
 VoQ/dP0QLv0tszruJeI/bEqjgMGe+0feZt49aOpGuFfqVUP4tBs0fwOdjg6ELCrZ
 Spw5GAewa7delQP8ihnC7n4wiV77k/qulReh4jExCt8s8L8nbkOL1naQlClMJfEb
 RkoHC4MH0xxc9Q+J2l00DkHR7DgM2BTEUcmPvXkr+WBGJ+fN9gb3iIfJx9uY3DsD
 W4iCkY+oAB7y4/lfa1LoImbGrrm9PmpXZR24TAkynaL2EOiQ7BtDuZsIFqu53VTn
 O6UCIiKYlCtXrTzbpP/z6kbQ/8oASVE1hk1rfYSNpLU05KgCBFfS6pZWQDC8hJJv
 UhK1nfxBrzIxQ130g9oJqFU5uwqheZJ4DLLBo751JLPfAPBI5tftxkHUOYWFA1+s
 uoHZSDnKNiwnS+krjo2kFREF3etY/Fqp98OP2GYuP5H+MPsL1mIFxX/y/MBsDGwo
 rH2TqHIyoKSPX5sIvS8I
 =Tz8Z
 -----END PGP SIGNATURE-----

Merge tag 'amlogic-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into clk-next

Same great taste as the previous pull request, but now with 50% less DT
bikeshedding!

Amlogic clock driver updates for v4.12
- meson8: add some new PLLs
- new clocks for Mali
- misc fixes.
2017-04-12 18:51:43 +02:00
Michael Turquette 5579836026 General rockchip clock changes for 4.12. Contains some new clock-ids
as well as fixups of the clock-ids on rk3368 timers, which were unused
 and completely wrong (more and differently named timers).
 Also there is one new clock on rk3328 using the muxgrf type, a fix for
 pll enablement which should wait for the pll to lock before continuing,
 some more critical clocks and the rename of the rk1108 to rv1108, as the
 soc seems to have been using a preliminary name before its actual release.
 The plan is to have the driver changes (pinctrl, clk) go through the
 respective maintainer trees and once everything landed in mainline do
 the rename of the devicetree files. With the dts-include change in the
 clock rename, we also keep everything compiling and thus bisectability.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAljY7X0QHGhlaWtvQHNu
 dGVjaC5kZQAKCRDzpnnJnNEdgRKaCACXoa3hjtS3CSqyJZQyMPPQ0Oda7bblrubR
 CE4GmuoZTnX/mUENFEmY7R+k0Np7b6ijPgdiFNpeZo0bpXAdi6bNjerG/QdRPV/P
 yP9usSk/8Tx/kY7vnSNTve5QiIJDUoWKGY8fn7ped+GmM7Qeb3/QbWR4N/fL4vVD
 nSZnKDO7yGMxLqWL0/QzZyiLzXl1ViEkPWFTedMf3cm0A48p8M/K5jinfMvl9I+o
 6e2TIsc2zn6vRKuoGhjqcaRxhtRRV9c2O8wVAcA6BLo/kk3pA9ZTU3QJPsqEcN6A
 BTbANYfXiQF6i+Xp1YJHcE2lNQ/sWZOTQtLqY9SL5WzMETMTETT5
 =In5R
 -----END PGP SIGNATURE-----

Merge tag 'v4.12-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull rockchip clk driver updates from Heiko Stuebner:

  General rockchip clock changes for 4.12. Contains some new clock-ids
  as well as fixups of the clock-ids on rk3368 timers, which were unused
  and completely wrong (more and differently named timers).
  Also there is one new clock on rk3328 using the muxgrf type, a fix for
  pll enablement which should wait for the pll to lock before continuing,
  some more critical clocks and the rename of the rk1108 to rv1108, as the
  soc seems to have been using a preliminary name before its actual release.
  The plan is to have the driver changes (pinctrl, clk) go through the
  respective maintainer trees and once everything landed in mainline do
  the rename of the devicetree files. With the dts-include change in the
  clock rename, we also keep everything compiling and thus bisectability.

* tag 'v4.12-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: add pll_wait_lock for pll_enable
  clk: rockchip: rename RK1108 to RV1108
  dt-bindings: rk1108-cru: rename RK1108 to RV1108
  clk: rockchip: mark some rk3368 core-clks as critical
  clk: rockchip: export SCLK_TIMERXX id for timers on rk3368
  clk: rockchip: describe clk_gmac using the new muxgrf type on rk3328
  clk: rockchip: add clock ids for timer10-15 of RK3368 SoCs
  clk: rockchip: fix up rk3368 timer-ids
  clk: rockchip: add rk3328 clk_mac2io_ext ID
  clk: rockchip: Set "ignore unused" for PMU M0 clocks on rk3399
2017-04-12 18:50:34 +02:00
Venkat Reddy Talla 682d33c65c regulator: tps65132: add device-tree binding
Add tps65132 regulator device-tree binding documentation

Signed-off-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-12 16:47:50 +01:00
Dongdong Liu b9c1153f7a PCI: hisi: Fix DT binding (hisi-pcie-almost-ecam)
The "hisilicon,pcie-almost-ecam" binding goes against the usual DT
conventions, and is non-sensical in that it describes the IP based on
what it isn't.  Fix the DT binding with "hisilicon,hip06-pcie-ecam"
and "hisilicon,hip07-pcie-ecam".

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-12 10:46:47 -05:00
Fabio Estevam 23aaf4ced3 ASoC: fsl ssi doc: Move optional properties to the correct section
Properties 'fsl,ssi-asynchronous', 'fsl,playback-dma' and 'fsl,capture-dma'
are optional, so move them under the optional section of the document.

While at it mention that 'fsl,playback-dma' and 'fsl,capture-dma'
only apply to Power Architecture.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Timur Tabi <timur@tabi.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-12 16:43:56 +01:00
pierre Kuo b26cfc48e3 doc: Update control-dependencies section of memory-barriers.txt
In the following example, if MAX is defined to be 1, then the compiler
knows (Q % MAX) is equal to zero.  The compiler can therefore throw
away the "then" branch (and the "if"), retaining only the "else" branch.

	q = READ_ONCE(a);
	if (q % MAX) {
		WRITE_ONCE(b, 1);
		do_something();
	} else {
		WRITE_ONCE(b, 2);
		do_something_else();
	}

It is therefore necessary to modify the example like this:

        q = READ_ONCE(a);
-       WRITE_ONCE(b, 1);
+       WRITE_ONCE(b, 2);
        do_something_else();

Signed-off-by: pierre Kuo <vichy.kuo@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:43 -07:00
Paul E. McKenney d3d3a3ccc4 doc: Emphasize that "toy" RCU requires recursive rwlock
Reported-by: "yangzc@uit.com.cn" <yangzc@uit.com.cn>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:43 -07:00
Michalis Kokologiannakis 93728af0a1 doc: Update the comparisons rule in rcu_dereference.txt
When an RCU-protected pointer is fetched but never dereferenced
rcu_access_pointer() should be used in place of rcu_dereference().
This commit explicitly records this very fact in Documentation/
RCU/rcu_dereference.txt, in order to prevent the usage of
rcu_dereference() in comparisons.

Signed-off-by: Michalis Kokologiannakis <mixaskok@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:42 -07:00
Paul E. McKenney 066bb1c84a doc: Update rcu_assign_pointer() definition in whatisRCU.txt
The rcu_assign_pointer() macro has changed over time, and the version
in Documentation/RCU/whatisRCU.txt has not kept up.  This commit brings
it into 2017, albeit in a simplified fashion.

Reported-by: Andrea Parri <parri.andrea@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:42 -07:00
Paul E. McKenney 6771853bce doc: Update requirements based on recent changes
These changes include lighter-weight expedited grace periods, the fact
that expedited grace periods and rcu_barrier() no longer block CPU
hotplug, some HTML font fixups, noting that rcu_barrier() need not wait
for a grace period (even if callbacks are posted), the fact that SRCU
read-side critical sections can be used from offline CPUs, and the fact
that SRCU now maintains per-CPU callback lists.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:41 -07:00
Paul E. McKenney aa123a748e doc: Update RCU data-structure documentation for rcu_segcblist
The rcu_segcblist data structure, which contains segmented lists
of RCU callbacks, was recently added.  This commit updates the
documentation accordingly.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:41 -07:00
Paul E. McKenney 8e2a439753 doc: Update stallwarn.txt to make causes more prominent
This commit rearranges the Documentation/RCU/stallwarn.txt file to
put the list of issues that can cause RCU CPU stall warnings near
the beginning of the document.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:40 -07:00
Paul E. McKenney b4553f0cfe doc: Add mid-boot operation to expedited grace periods
This commit adds a description of how expedited grace periods operate
during the mid-boot "dead zone", which starts when the scheduler spawns
the first kthread and ends when all of RCU's kthreads have been spawned.
In short, before mid-boot, synchronous grace periods can be a no-op.
After the end of mid-boot, workqueues may be used.  During mid-boot,
the requesting task drivees the expedited grace period.

For more detail, see https://lwn.net/Articles/716148/.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:40 -07:00
Paul E. McKenney f1387d7705 doc: Synchronous RCU grace periods are now legal throughout boot
This commit updates the "Early Boot" section of the RCU requirements
to describe how synchronous RCU grace periods are now legal throughout
the boot process.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-12 08:23:39 -07:00
Michael Hennerich 84ffac8971 dt-bindings: i2c: mux: ltc4306: Add dt-bindings for I2C multiplexer/switch
This patch adds support for the Analog Devices / Linear Technology
LTC4306 and LTC4305 4/2 Channel I2C Bus Multiplexer/Switches.
The LTC4306 optionally provides two general purpose input/output pins
(GPIOs) that can be configured as logic inputs, opendrain outputs or
push-pull outputs via the generic GPIOLIB framework.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
2017-04-12 17:06:05 +02:00
Laxman Dewangan 0dafdd168b pwm: tegra: Add DT binding details to configure pin in suspends/resume
In some of NVIDIA Tegra's platform, PWM controller is used to
control the PWM controlled regulators. PWM signal is connected to
the VID pin of the regulator where duty cycle of PWM signal decide
the voltage level of the regulator output.

When system enters suspend, some PWM client/slave regulator devices
require the PWM output to be tristated.

Add DT binding details to provide the pin configuration state
from PWM and pinctrl DT node in suspend and active state of
the system.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2017-04-12 16:09:49 +02:00
Catalin Marinas 494bc3cd3d Merge branch 'will/for-next/perf' into for-next/core
* will/for-next/perf:
  arm64: pmuv3: use arm_pmu ACPI framework
  arm64: pmuv3: handle !PMUv3 when probing
  drivers/perf: arm_pmu: add ACPI framework
  arm64: add function to get a cpu's MADT GICC table
  drivers/perf: arm_pmu: split out platform device probe logic
  drivers/perf: arm_pmu: move irq request/free into probe
  drivers/perf: arm_pmu: split cpu-local irq request/free
  drivers/perf: arm_pmu: rename irq request/free functions
  drivers/perf: arm_pmu: handle no platform_device
  drivers/perf: arm_pmu: simplify cpu_pmu_request_irqs()
  drivers/perf: arm_pmu: factor out pmu registration
  drivers/perf: arm_pmu: fold init into alloc
  drivers/perf: arm_pmu: define armpmu_init_fn
  drivers/perf: arm_pmu: remove pointless PMU disabling
  perf: qcom: Add L3 cache PMU driver
  drivers/perf: arm_pmu: split irq request from enable
  drivers/perf: arm_pmu: manage interrupts per-cpu
  drivers/perf: arm_pmu: rework per-cpu allocation
  MAINTAINERS: Add file patterns for perf device tree bindings
2017-04-12 10:41:50 +01:00
Fabio Estevam 7d8d2c9482 ASoC: tas2552: Fix typos in the binding doc
Fix the following typos:

"receive its reference clock" and "selected".

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-11 21:41:41 +01:00
Fabio Estevam ddea87ea79 ASoC: tas2552: Describe the possible I2C addresses
According to the TAS2552 datasheet the possible I2C addresses are:

0x40 - when ADDR pin is 0
0x41 - when ADDR pin is 1

List the possible values for better clarification.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-11 21:41:41 +01:00
Mauro Carvalho Chehab e1c3e6e1ca docs-rst: fix usb cross-references
As some USB documentation files got moved, adjust their
cross-references to their new place.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:41:29 -06:00
Mauro Carvalho Chehab 69966c94b9 usb.rst: get rid of some Sphinx errors
Get rid of those warnings:

    Documentation/driver-api/usb/usb.rst:615: ERROR: Unknown target name: "usb_type".
    Documentation/driver-api/usb/usb.rst:615: ERROR: Unknown target name: "usb_dir".
    Documentation/driver-api/usb/usb.rst:615: ERROR: Unknown target name: "usb_recip".
    Documentation/driver-api/usb/usb.rst:679: ERROR: Unknown target name: "usbdevfs_urb_type".

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:40:37 -06:00
Mauro Carvalho Chehab e463c06335 usb/URB.txt: convert to ReST and update it
The URB doc describes the Kernel mechanism that do USB transfers.
While the functions are already described at urb.h, there are a
number of concepts and theory that are important for USB driver
developers.

Convert it to ReST and use C ref links to point to the places
at usb.h where each function and struct is located.

A few of those descriptions were incomplete. While here, update
to reflect the current API status.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:40:25 -06:00
Mauro Carvalho Chehab 32a3bebce9 usb/persist.txt: convert to ReST and add to driver-api book
This document describe some USB core features. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:40:12 -06:00
Mauro Carvalho Chehab 76f650f077 usb/hotplug.txt: convert to ReST and add to driver-api book
This document describe some USB core features. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:40:01 -06:00
Mauro Carvalho Chehab 360a7b5f57 error-codes.rst: convert to ReST and add to driver-api book
This document describe some USB core features. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:39:49 -06:00
Mauro Carvalho Chehab 2a373331dd usb/dma.txt: convert to ReST and add to driver-api book
This document describe some USB core features. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:39:36 -06:00
Mauro Carvalho Chehab 3db5f406e4 usb/power-management.txt: convert to ReST and add to driver-api book
This document describe some USB core functions. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:39:20 -06:00
Mauro Carvalho Chehab 3b38e4f218 usb/callbacks.txt: convert to ReST and add to driver-api book
This document describe some USB core functions. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:39:08 -06:00
Mauro Carvalho Chehab 401c7be2ba usb/bulk-streams.txt: convert to ReST and add to driver-api book
This document describe some USB core functions. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:38:56 -06:00
Mauro Carvalho Chehab 79e0c2e6d4 usb/anchors.txt: convert to ReST and add to driver-api book
This document describe some USB core functions. Add it to the
driver-api book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:38:44 -06:00
Mauro Carvalho Chehab 67cc20e008 writing_musb_glue_layer.rst: Enrich its ReST representation
This file is actually quite complex, and required several
manual handwork:

- add a title for the document;
- use the right tags for monospaced fonts;
- use c references where needed;
- adjust cross-reference to writing_usb_driver.rst
- hightlight cross-referenced lines.

With regards to C code snippet line highlights, the better would be
to use :linenos: for the C code snippets that are referenced by
the line number. However, at least with Sphinx 1.4.9, enabling
it cause the line number to be misaligned with the code,
making it even more confusing. So, instead, let's use
:emphasize-lines: tag to mark the lines that are referenced
at the text.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:38:32 -06:00
Mauro Carvalho Chehab 0e8c46d032 writing_usb_driver.rst: Enrich its ReST representation
The pandoc conversion is not perfect. Do handwork in order to:

- add a title to this chapter;
- adjust function and struct references;
- use monospaced fonts for C code names;
- some other minor adjustments to make it better to read in
  text mode and in html.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:38:18 -06:00
Mauro Carvalho Chehab e1cfb8cabe gadget.rst: Enrich its ReST representation and add kernel-doc tag
The pandoc conversion is not perfect. Do handwork in order to:

- add a title to this chapter;
- use the proper warning and note markups;
- use kernel-doc to include Kernel header and c files;
- remove legacy notes with regards to DocBook;
- some other minor adjustments to make it better to read in
  text mode and in html.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:37:41 -06:00
Mauro Carvalho Chehab 9a3c8b3545 usb.rst: Enrich its ReST representation
- use the proper warning and note markups;
- add references for parts of the document that will be
  cross-referenced on other USB docs;
- some minor adjustments to make it better to read in
  text mode and in html.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:37:27 -06:00
Mauro Carvalho Chehab 4ad4b21b1b docs-rst: convert usb docbooks to ReST
As we're moving out of DocBook, let's convert the remaining
USB docbooks to ReST.

The transformation itself on this patch is a no-brainer
conversion using pandoc via this script:
	Documentation/sphinx/tmplcvt

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:37:04 -06:00
Mauro Carvalho Chehab d76a085bc8 driver-api/basics.rst: add device table header
The structs there at device table are used by other documentation
at the Kernel. So, add it to the driver API.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:35:28 -06:00
Mauro Carvalho Chehab 686b0d9bb4 tmplcvt: make the tool more robust
Currently, the script just assumes to be called at
Documentation/sphinx/. Change it to work on any directory,
and make it abort if something gets wrong.

Also, be sure that both parameters are specified.

That should avoid troubles like this:

$ Documentation/sphinx/tmplcvt Documentation/DocBook/writing_usb_driver.tmpl
sed: couldn't open file convert_template.sed: No such file or directory

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-11 14:35:15 -06:00
Kishon Vijay Abraham I 42fc2ac6e8 Documentation: PCI: Add specification for the *PCI test* function device
Add specification for the *PCI test* virtual function device. The endpoint
function driver and the host PCI driver should be created based on this
specification.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-11 14:18:37 -05:00
Kishon Vijay Abraham I bea37d3d31 Documentation: PCI: Guide to use PCI endpoint configfs
Add Documentation to help users use PCI endpoint to configure PCI endpoint
function and to bind the endpoint function with endpoint controller.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-By: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-11 14:18:36 -05:00
Kishon Vijay Abraham I a8a5be0988 Documentation: PCI: Guide to use PCI Endpoint Core Layer
Add Documentation to help users use endpoint library to enable endpoint
mode in the PCI controller and add new PCI endpoint functions.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-By: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-11 14:18:36 -05:00
Radim Krčmář f7b1a77d3b KVM: s390: features for 4.12
1. guarded storage support for guests
    This contains an s390 base Linux feature branch that is necessary
    to implement the KVM part
 2. Provide an interface to implement adapter interruption suppression
    which is necessary for proper zPCI support
 3. Use more defines instead of numbers
 4. Provide logging for lazy enablement of runtime instrumentation
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJY50fGAAoJEBF7vIC1phx8TK4P/0y7J6go7NFniVXf0K5/teAZ
 kH6BRwoWQDCGAwkpz8fqhKTNxdEq1bjLS5aNf2R3oGt61yoKim4GLSYeRymhKWo0
 WZbwq8VpCWxjysx4wyg1nm4J05EDqaPvfxtD9ONCxZNXvPeZR5pIY1uo3twuNROS
 z+bOtP1YK7FyzbgGsHnc47YKrOMa3LwTQfAAhf3eVHs5f9cksIqlQYlo/H7fJY96
 Z3qpZmrwWP5avZAenxfUKS2dEiT2lzFvUP1waYwm4sZ7fImdgBRlnFzFK/O7qiIV
 c9KHW+qao37NU1AsqJibXZvFQBJixKxWa8nCKsagpkZAMDoPNoutHsxXpNJNrp4S
 Zq+OWbiYRKXnndGI94RtMUE+bmRvcj37a648+nwzRPA9N889GQR829qKLANsqCwY
 7bM3gE9d5BkAASp0uZ4bgrfyU4tlGTH8WLNSLM+upeOGjWEk3HdOEFuJQNspgaWQ
 oaAl4TROQhGvZXYxzTHP26jEG0IAIkUd2CUULAe8lZ2vk+kc4xPAfhjQ41DFembz
 fDMXXKgjtHvT6Z5USbGJdkOBkhzGyOuETZJyrj7D60OmlHXeoBPgWIJ21cS8ZU4F
 M0cM+1DcXbOOKjfIbZRbLh9OdAhBya8VzHnyw7T2vl9hXIAhEH9MwTfVsnBujdca
 Q4BBOIh3HV9VfT0exaaF
 =Jtjb
 -----END PGP SIGNATURE-----

Merge tag 'kvm-s390-next-4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux

From: Christian Borntraeger <borntraeger@de.ibm.com>

KVM: s390: features for 4.12

1. guarded storage support for guests
   This contains an s390 base Linux feature branch that is necessary
   to implement the KVM part
2. Provide an interface to implement adapter interruption suppression
   which is necessary for proper zPCI support
3. Use more defines instead of numbers
4. Provide logging for lazy enablement of runtime instrumentation
2017-04-11 20:54:40 +02:00
John Stultz 86666c083a ASoC: Improve hi6210-i2s DT bindings
This patch improves the previously submitted hi6210-i2s DT
binding, adding extra details to how the multi-dai index
value maps to the potential interfaces.
(Currently just index 0 -> the S2 interface, as there is
only one supported, but in the future other interfaces may
be enabled.)

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-11 19:25:46 +01:00
Greg Kroah-Hartman ba7756d082 usb: changes for v4.12
With 51 non-merge commits, this is one of the smallest USB Gadget pull
 requests. Apart from your expected set of non-critical fixes, and
 other miscellaneous items, we have most of the changes in dwc3 (52.5%)
 with all other UDCs following with 34.8%.
 
 As for the actual changes, the most important of them are all the
 recent changes to reduce memory footprint of dwc3, bare minimum
 dual-role support on dwc3 and reworked endpoint count and
 initialization routines.
 -----BEGIN PGP SIGNATURE-----
 
 iQJRBAABCAA7FiEElLzh7wn96CXwjh2IzL64meEamQYFAljsjRwdHGZlbGlwZS5i
 YWxiaUBsaW51eC5pbnRlbC5jb20ACgkQzL64meEamQaPZA/9H6GgNlvdGWPweJ0r
 g86iBmio/Qn334SOCAJDrdw4ULSTSQR8nQHGWuETE2pQ2uYA/dbBWvjkx8Pujs+u
 Ye2ig/iYchvHhY7cIWBG6A/iwvBClZF+yTv4ruh3i99BOGeAtGSyFS3HftQZLkGs
 360CritNs+fSJsU6jnCE2+808evbkRiMaEfiBpiqXF2wvjMonWUMUlHaTBTHzDnk
 k2/NJSzDINr4HaALalJxVpEetC500LDkQ531O5s7V6NIareCIBOh2li9xZJur38h
 728BbCIiwPrdfLI2gGJLUOJq5vf5fJPT6DMJDN4hsu7gXcl2GiIc3nqlcxBB8P9R
 kurWgjVd8aIGS7qqZzfDBH7I5UgFbJZbtVXy6UhSRILF+hzAb/l95pZUOyTwUnbj
 ew3ALD2H7XolJT9jLG/q1CaQQMjudVnhLF2s1Ota8dsBeOShH6yfS6hGGQ8L1j8x
 kXe3dl4HEj9s7gT0S+tVN+kt6bLGZ013CjCbuZgG9JLRkswyn780KTgL4pbjHiAE
 KNGlCGUPRh3AiDLSbQ4IRU/J/0MVFs51k8aPn6PWpUqU8nc1QNEfczqrlAGPvkqU
 nE77OktC1UCTrId7F8kllTEglOrR4CVXuT2N7rYzwgM2jmfHLzb0DaJ+a/ZdsUfI
 DjuY8jNbuGnvZRRiVQU5ynva5BU=
 =wYOI
 -----END PGP SIGNATURE-----

Merge tag 'usb-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v4.12

With 51 non-merge commits, this is one of the smallest USB Gadget pull
requests. Apart from your expected set of non-critical fixes, and
other miscellaneous items, we have most of the changes in dwc3 (52.5%)
with all other UDCs following with 34.8%.

As for the actual changes, the most important of them are all the
recent changes to reduce memory footprint of dwc3, bare minimum
dual-role support on dwc3 and reworked endpoint count and
initialization routines.
2017-04-11 16:47:26 +02:00
Sebastian Reichel 6d99971842 input: cpcap-pwrbutton: New driver
Motorola CPCAP is a PMIC found in multiple smartphones.
This driver adds support for the power/on button and has
been tested in Droid 4.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-11 15:18:09 +01:00
Jacopo Mondi 8c58f1a7a4 pinctrl: generic: Add bi-directional and output-enable
Add bi-directional and output-enable pin configuration properties.

bi-directional allows to specify when a pin shall operate in input and
output mode at the same time. This is particularly useful in platforms
where input and output buffers have to be manually enabled.

output-enable is just syntactic sugar to specify that a pin shall
operate in output mode, ignoring the provided argument.
This pairs with input-enable pin configuration option.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-11 11:01:33 +02:00
Ingo Molnar b6466d53af Merge branch 'x86/urgent' into x86/cpu, to resolve conflict
Conflicts:
	arch/x86/kernel/cpu/intel_rdt_schemata.c

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-11 10:47:28 +02:00
Yoshihiro Shimoda cc995c9ec1 usb: gadget: udc: renesas_usb3: add support for usb role swap
This patch adds support for usb role swap via sysfs "role".

For example:
 1) Connect a usb cable using 2 Salvator-X boards.
  - For A-Device, the cable is connected to CN11 (USB3.0 ch0).
  - For B-Device, the cable is connected to CN9 (USB2.0 ch0).
 2) On A-Device, you input the following command:
  # echo peripheral > /sys/devices/platform/soc/ee020000.usb/role
 3) On B-Device, you input the following command:
  # echo host > /sys/devices/platform/soc/ee080200.usb-phy/role

Then, the A-Device acts as a peripheral and the B-Device acts as
a host. Please note that A-Device must input the following command
if you want the board to act as a host again.
 # echo host > /sys/devices/platform/soc/ee020000.usb/role

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-04-11 10:58:25 +03:00
Ingo Molnar e5185a76a2 Merge branch 'x86/boot' into x86/mm, to avoid conflict
There's a conflict between ongoing level-5 paging support and
the E820 rewrite. Since the E820 rewrite is essentially ready,
merge it into x86/mm to reduce tree conflicts.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-11 08:56:05 +02:00
Ingo Molnar 4729277156 Merge branch 'WIP.x86/boot' into x86/boot, to pick up ready branch
The E820 rework in WIP.x86/boot has gone through a couple of weeks
of exposure in -tip, merge it in a wider fashion.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-11 08:49:31 +02:00
Ingo Molnar 84b1e36a6a Linux 4.11-rc6
-----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJY6mY1AAoJEHm+PkMAQRiGB14IAImsH28JPjxJVDasMIRPBxVc
 euPPlZgoBieu7sNt+kEsEqdkXuu0MLk6gln0IGxWLeoB2S+u3Tz5LMa2YArVqV9Z
 tWzOnI9auE73P2Pz/tUMOdyMs5tO0PolQxX3uljbULBozOHjHRh13fsXchX2yQvl
 mFeFCDqpPV0KhWRH/ciA8uIHdvYPhMpkKgRtmR8jXL0yzqLp6+2J+Bs8nHG4NNng
 HMVxZPC8jOE/TgWq6k/GmXgxh3H/AideFdHFbLKYnIFJW41ZGOI8a262zq3NmjPd
 lywpVU7O7RMhSITY5PnuR3LpNV8ftw1hz2y6t35unyFK1P02adOSj5GJ3hGdhaQ=
 =Xz5O
 -----END PGP SIGNATURE-----

Merge tag 'v4.11-rc6' into perf/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-11 08:42:47 +02:00
Dave Airlie df45eaca51 Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next
Last drm-misc-next pull req for 4.12

Core changes:
 - fb_helper checkpatch cleanup and simplified _add_one_connector() (Thierry)
 - drm_ioctl and drm_sysfs improved/gained documentation (Daniel)
 - [ABI] Repurpose reserved field in drm_event_vblank for crtc_id (Ander)
 - Plumb acquire ctx through legacy paths to avoid lock_all and legacy_backoff
   (Daniel)
 - Add connector_atomic_check to check conn constraints on modeset (Maarten)
 - Add drm_of_find_panel_or_bridge to remove boilerplate in drivers (Rob)

Driver changes:
 - meson moved to drm-misc (Neil)
 - Added support for Amlogic GX SoCs in dw-hdmi (Neil)
 - Rockchip unbind actually cleans up the things bind initializes (Jeffy)
 - A couple misc fixes in virtio, dw-hdmi

NOTE: this also includes a backmerge of drm-next as well rc5 (we needed vmwgfx
      as well as the new synopsys media formats)

* tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc: (77 commits)
  Revert "drm: Don't allow interruptions when opening debugfs/crc"
  drm: Only take cursor locks when the cursor plane exists
  drm/vmwgfx: Fix fbdev emulation using legacy functions
  drm/rockchip: Shutdown all crtcs when unbinding drm
  drm/rockchip: Reorder drm bind/unbind sequence
  drm/rockchip: analogix_dp: Disable clock when unbinding
  drm/rockchip: vop: Unprepare clocks when unbinding
  drm/rockchip: vop: Enable pm domain before vop_initial
  drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding
  drm/rockchip: cdn-dp: Don't try to release firmware when not loaded
  drm: bridge: analogix: Destroy connector & encoder when unbinding
  drm: bridge: analogix: Disable clock when unbinding
  drm: bridge: analogix: Unregister dp aux when unbinding
  drm: bridge: analogix: Detach panel when unbinding analogix dp
  drm: Don't allow interruptions when opening debugfs/crc
  drm/virtio: don't leak bo on drm_gem_object_init failure
  drm: bridge: dw-hdmi: fix input format/encoding from plat_data
  drm: omap: use common OF graph helpers
  drm: convert drivers to use drm_of_find_panel_or_bridge
  drm: convert drivers to use of_graph_get_remote_node
  ...
2017-04-11 07:41:10 +10:00
Dave Airlie b769fefb68 Linux 4.11-rc6
-----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJY6mY1AAoJEHm+PkMAQRiGB14IAImsH28JPjxJVDasMIRPBxVc
 euPPlZgoBieu7sNt+kEsEqdkXuu0MLk6gln0IGxWLeoB2S+u3Tz5LMa2YArVqV9Z
 tWzOnI9auE73P2Pz/tUMOdyMs5tO0PolQxX3uljbULBozOHjHRh13fsXchX2yQvl
 mFeFCDqpPV0KhWRH/ciA8uIHdvYPhMpkKgRtmR8jXL0yzqLp6+2J+Bs8nHG4NNng
 HMVxZPC8jOE/TgWq6k/GmXgxh3H/AideFdHFbLKYnIFJW41ZGOI8a262zq3NmjPd
 lywpVU7O7RMhSITY5PnuR3LpNV8ftw1hz2y6t35unyFK1P02adOSj5GJ3hGdhaQ=
 =Xz5O
 -----END PGP SIGNATURE-----

Backmerge tag 'v4.11-rc6' into drm-next

Linux 4.11-rc6

drm-misc needs 4.11-rc5, may as well fix conflicts with rc6.
2017-04-11 07:40:42 +10:00
Jaghathiswari Rankappagounder Natarajan 2d7a548a3e drivers: hwmon: Support for ASPEED PWM/Fan tach
The ASPEED AST2400/2500 PWM controller supports 8 PWM output ports.
The ASPEED AST2400/2500 Fan tach controller supports 16 tachometer
inputs.
The device driver matches on the device tree node. The configuration
values are read from the device tree and written to the respective
registers.
The driver provides a sysfs entries through which the user can
configure the duty-cycle value (ranging from 0 to 100 percent) and read
the fan tach rpm value.

Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-10 13:12:18 -07:00
Jaghathiswari Rankappagounder Natarajan d702b353b9 Documentation: dt-bindings: Document bindings for ASPEED AST2400/AST2500 PWM and Fan tach controller device driver
This binding provides interface for adding values related to ASPEED
AST2400/2500 PWM and Fan tach controller support.
The PWM controller can support upto 8 PWM output ports.
The Fan tach controller can support upto 16 tachometer inputs.

Signed-off-by: Jaghathiswari Rankappagounder Natarajan <jaghu@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2017-04-10 13:11:21 -07:00
Fabio Estevam 570c70a60f ASoC: sgtl5000: Allow LRCLK pad drive strength to be changed
Introduce the "lrclk-strength" property to allow LRCLK pad drive strength
to be changed via device tree.

When running a stress playback loop test on a mx6dl wandboard channel
swap can be noticed on about 10% of the times.

While debugging this issue I noticed that when probing the SGTL5000
LRCLK pin with the scope the swap did not happen. After removing
the probe the swap started to happen again.

After changing the LRCLK pad drive strength to the maximum value the
issue is gone.

Same fix works on a mx6dl Colibri board as well.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-10 20:21:46 +01:00
John Stultz 9e615f63cb ASoC: add hi6210-i2s DT bindings
Adds DT bindings documentation for the hi6210-i2s driver.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-10 19:40:09 +01:00
Kumar Gala ac37f761ce of: Add vendor prefix for Nordic Semiconductor
Nordic Semiconductor is a semiconductor company specializing in ARM
Cortex-M based SoCs for low-power wireless communication, especially
Bluetooth.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-04-10 13:24:24 -05:00
Jiri Olsa 4ffa3c977b x86/intel_rdt: Add cpus_list rdtgroup file
The resource control filesystem provides only a bitmask based cpus file for
assigning CPUs to a resource group. That's cumbersome with large cpumasks
and non-intuitive when modifying the file from the command line.

Range based cpu lists are commonly used along with bitmask based cpu files
in various subsystems throughout the kernel.

Add 'cpus_list' file which is CPU range based.

  # cd /sys/fs/resctrl/
  # echo 1-10 > krava/cpus_list
  # cat krava/cpus_list
  1-10
  # cat krava/cpus
  0007fe
  # cat cpus
  fffff9
  # cat cpus_list
  0,3-23

[ tglx: Massaged changelog and replaced "bitmask lists" by "CPU ranges" ]

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Shaohua Li <shli@fb.com>
Link: http://lkml.kernel.org/r/20170410145232.GF25354@krava
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-10 19:10:25 +02:00
Matthias Kaehlcke 9dee7a72d0 regulator: Add driver for voltage controlled regulators
The output voltage of a voltage controlled regulator can be controlled
through the voltage of another regulator. The current version of this
driver assumes that the output voltage is a linear function of the control
voltage.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2017-04-10 17:30:40 +01:00
Hans Verkuil efaedd17a3 [media] s5p-cec.txt: document the HDMI controller phandle
Update the bindings documenting the new hdmi phandle.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
CC: linux-samsung-soc@vger.kernel.org
CC: devicetree@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 13:13:07 -03:00
Benjamin Gaignard 6e27ccce8c [media] stih-cec.txt: document new hdmi phandle
Update the bindings documentation with the new hdmi phandle.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 12:52:37 -03:00
Takashi Iwai 7480316c26 ALSA: hda - Allow to enable/disable vmaster build explicitly
Another preliminary patch for the dual-codec support: since the
support of vmaster over multiple codecs is difficult, simply disable
it by a new flag to hda_codec struct.  A new user hint is added as
well for consistency.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-10 17:45:27 +02:00
Kumar Gala ddc17771e2 dt-bindings: arm,nvic: Binding for ARM NVIC interrupt controller on Cortex-M
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-04-10 10:04:42 -05:00
Greg Kroah-Hartman a6308d700b phy: for 4.12
*) Add new PHY driver for Qualcomm's QMP PHY (used by PCIe, UFS and USB)
  *) Add new PHY driver for Qualcomm's QUSB2 PHY
  *) Add support for vbus regulator in rockchip-usb driver
  *) Add support for usb2-phy in rk3328 to rockchip-inno-usb2 driver
  *) Add support for a new version of PHY in phy-mt65xx-usb3 driver
  *) Add support for Allwinner A64 PHY to switch between MUSB and EHCI/OHCI
  *) Cleanups in Exynos driver and phy-mt65xx-usb3 driver
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJY62nSAAoJEA5ceFyATYLZWkoP/2lImyWp5P61S8cOdvli1SHj
 J/TIfcyGyvwTQPtUdYGQmgS0JfBtXkSqu5y5E+diIyZMSSLsob7udJ+qeO4WWtOQ
 wNOm2MTNAyOvbYqdhEiUWRXGLhCkVmhfFoUG5tB2FXnOHMDVc14PFh3U1PmqETWN
 QIL3oc44L9JGgeGcYvGWJHm1pcLxD7eHPzkeqS4+KJfX4ehFo5kuZId1K7YM5cdZ
 EgQ8UQy93jDB2t/0x6wrd7MQ+saSiB8gg7U6UOBR7cm57pXBvs1LTvk6qqIGSG3r
 xmlYyI/N3QaU7Z3yGpCRyMGj7JZslBAzYBX/U0s6sio4IcQT5Vyp3moSnTjCexR0
 LIpZJoiTf45hZ6JUIxRrPFM9UG6vKVhobtXHzLwbRiSQxN1IPmT+j9HsDEBHdmvu
 qNGwkciuaBsS5hRJeIs7gR52wCt8PRKH1riXbeTi5O1t/h98pnf5Dlasvtvl9E20
 cMa3o/8YSrwspOXqJ8er4rHc3SEKb+FLBHko/unqK1Sf3xOEaU4lle4F459P7MVN
 2btEvSlOKbgYwnlOuKw7xwZX3rmNnPh/IZpqRLlI0vf4OvlabaW1u+toirCaaD2K
 Jkfw2yvy41qXfD/4ERH9NcWmryhgRHTV1KCpmQGNzJdk8RTZAoRd8EOSuQ4kZBKr
 NCx4jg4+N8llxItXXXFF
 =7TO8
 -----END PGP SIGNATURE-----

Merge tag 'phy-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 4.12

 *) Add new PHY driver for Qualcomm's QMP PHY (used by PCIe, UFS and USB)
 *) Add new PHY driver for Qualcomm's QUSB2 PHY
 *) Add support for vbus regulator in rockchip-usb driver
 *) Add support for usb2-phy in rk3328 to rockchip-inno-usb2 driver
 *) Add support for a new version of PHY in phy-mt65xx-usb3 driver
 *) Add support for Allwinner A64 PHY to switch between MUSB and EHCI/OHCI
 *) Cleanups in Exynos driver and phy-mt65xx-usb3 driver

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 15:45:52 +02:00
Greg Kroah-Hartman 073a457d9e Update extcon for 4.12
Detailed description for this pull request:
 1. Add new 'extcon-intel-cht-wc.c' driver
 - Intel Cherrytrail Whiskey Cove PMIC extcon driver supports
 the detection of the charger connectors and the control.
 
 2. Add new extcon API to monitor the all external connectors.
 - The extcon consumer might need to monitor the all supported external
 connectors from the extcon device. Before, the extcon consumer
 should have each notifier_block structure for each external connector.
 
 In order to support the requirement, the extcon adds new
 extcon_register_notifier_all() API. The extcon consumer is able
 to monitor the state change of all supported external connectors
 from the extcon device by using only one notifier_block.
 
 - extcon_(register|unregister)_notifier_all(struct extcon_dev *edev
 				struct notifier_block *nb)
 - devm_extcon_(register|unregister)_notifier_all(struct device *dev,
 				struct extcon_dev *edev
 				struct notifier_block *nb)
 
 3. Remove porting compatibility of old switch class
 - The extcon removes the porting compatibility of old switch class
 because there are no any use-case and requirement of switch class.
 
 4. Update the extcon drivers and Fix the minor issues
 - Revert the ACPI gpio interface on the extcon-usb-gpioc.c.
 - Fix the issues related to the suspend-to-ram for both extcon-usb-gpio.c
   and extcon-palmas.c.
 - Add warning message for extcon-arizona.c when headphone detection is not
   finished.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJY6xdjAAoJEJzN3yze689TKp4QAIRtX/6/8SsF29wI6ViQvJCi
 OcBhiaKPqUJqJB5lK5wHvXR898Zx3PibAY4RNhcFCbXfiTgGeIGtG3OiN5+PpZ+i
 +gUbVR2ec6G6YMTOmpiatKX8kdaknDMet6Czj9Ap4i8qW7XVZrx8k5rX3eQygb+9
 kPG8VGYkdTWpJwqZ/GR5DiOe0tSlzH9jDBFxBYEUEQSfXLvwmieDWrKVZHXcI4lB
 BaCy/v0yh/jWXe+/ZgM9Fff0a+NJLbIfVmVGmrUhy7iAyDfeP91Df5uv6PPzPX9b
 GKIqAbJB1B//MK8pON2ZL0RuTssD/7akENrmd+eHDuqA7eFf1+aL2Em8eBJ3S+Xh
 uBFt4dWR6Gctwsmkyu5GOOFgAzPB+9aCFEEOTjnzBszj3U7lIzqDq6G2Mrg4gb7b
 3Y4pS2JjA2V6lpflGomfhfIEq7hDmr7LB4/kl8Odf1C3pJI3lwmIux883qm+zmIO
 zl0vKVpWoskxl7yMxLGALhiRN/gUQF4grcSGDWHQ6lmcREgo5Ixw8IUUcnpabmqy
 UAZgixdNutquaAF+QvZ8VshktcleMYxWZhvJ/ttPee8RNvh6yTqgcRM/8ujrQPPT
 xVamXHOgs92K1Ljw1Er+YnmCH3C6nL6Amsr7Ya2VmIPtXDuWxIRmk5NAFTc+XVb1
 IK8Me7KVb0FF910in2/m
 =UAR0
 -----END PGP SIGNATURE-----

Merge tag 'extcon-next-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Update extcon for 4.12

Detailed description for this pull request:
1. Add new 'extcon-intel-cht-wc.c' driver
- Intel Cherrytrail Whiskey Cove PMIC extcon driver supports
the detection of the charger connectors and the control.

2. Add new extcon API to monitor the all external connectors.
- The extcon consumer might need to monitor the all supported external
connectors from the extcon device. Before, the extcon consumer
should have each notifier_block structure for each external connector.

In order to support the requirement, the extcon adds new
extcon_register_notifier_all() API. The extcon consumer is able
to monitor the state change of all supported external connectors
from the extcon device by using only one notifier_block.

- extcon_(register|unregister)_notifier_all(struct extcon_dev *edev
				struct notifier_block *nb)
- devm_extcon_(register|unregister)_notifier_all(struct device *dev,
				struct extcon_dev *edev
				struct notifier_block *nb)

3. Remove porting compatibility of old switch class
- The extcon removes the porting compatibility of old switch class
because there are no any use-case and requirement of switch class.

4. Update the extcon drivers and Fix the minor issues
- Revert the ACPI gpio interface on the extcon-usb-gpioc.c.
- Fix the issues related to the suspend-to-ram for both extcon-usb-gpio.c
  and extcon-palmas.c.
- Add warning message for extcon-arizona.c when headphone detection is not
  finished.
2017-04-10 15:42:15 +02:00
Greg Kroah-Hartman f78a8236c6 Merge 4.11-rc6 into staging-next
We want the staging and iio fixes in here to handle merging easier.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-10 15:21:55 +02:00
Greg Kroah-Hartman 523aa3586f Merge 4.11-rc6 into driver-core-next
We want the fixes in here as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-10 15:13:06 +02:00
Hans Verkuil 426b188040 [media] dev-capture.rst/dev-output.rst: video standards ioctls are optional
The documentation for video capture and output devices claims that the video standard
ioctls are required. This is not the case, they are only required for PAL/NTSC/SECAM
type inputs and outputs. Sensors do not implement this at all and e.g. HDMI inputs
implement the DV Timings ioctls.

Just drop the mention of 'video standard' ioctls.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 08:23:08 -03:00
Sjoerd Simons 9d685ed77b phy: rockchip-usb: Add vbus regulator support.
On rockchip devices vbus is supplied by a separate power supply, often
through a regulator. Add support for describing the the regulator in
device-tree following the same convention as several other usb phy's.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Vivek Gautam 3a9d31cd8e dt-bindings: phy: Add support for QMP phy
Qualcomm chipsets have QMP phy controller that provides
support to a number of controller, viz. PCIe, UFS, and USB.
Adding dt binding information for the same.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Vivek Gautam e9eef1e596 dt-bindings: phy: Add support for QUSB2 phy
Qualcomm chipsets have QUSB2 phy controller that provides
HighSpeed functionality for DWC3 controller.
Adding dt binding information for the same.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Meng Dongyang 40544ba591 dt-bindings: add DT bindings for usb2-phy grf
Adds the device tree bindings description for usb2-phy grf
of RK3328 platform.

Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Meng Dongyang e3462f9e07 dt-bindings: phy-rockchip-inno-usb2: add assign clock property in usb2-phy node
On some platform such as RK3328, the 480m clock may need to assign
clock parent in dts in stead of clock driver. So this patch add
property of assigned-clocks and assigned-clock-parents to assign
parent for 480m clock.

Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:41 +05:30
Chunfeng Yun 5e3bf9c5b7 dt-bindings: phy-mt65xx-usb: add support for new version phy
add a new compatible string for "mt2712", and move reference clock
into each port node;

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:43:40 +05:30
Icenowy Zheng a0b1910e85 dt: bindings: add pmu0 regs for USB PHYs on Allwinner H3/V3s/A64
Allwinner H3/V3s/A64 SoCs have a special USB PHY0 that can route to two
controllers: one is MUSB and the other is a EHCI/OHCI pair.

When it's routed to EHCI/OHCI pair, it will needs a "pmu0" regs to
tweak, like other EHCI/OHCI pairs in Allwinner SoCs.

Add this to the binding of USB PHYs on Allwinner H3/V3s/A64.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-04-10 16:42:57 +05:30
Hans Verkuil 9f994253c8 [media] ov2640: update bindings
Update the bindings for this device based on a working DT example.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 08:12:21 -03:00
Hans Verkuil e48f4eeac1 [media] atmel-isi: update device tree bindings documentation
The original bindings documentation was incomplete (missing pinctrl-names,
missing endpoint node properties) and the example was out of date.

Add the missing information and tidy up the text.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:55:24 -03:00
Hans Verkuil bba582894a [media] ov7670: document device tree bindings
Add binding documentation and add that file to the MAINTAINERS entry.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:51:08 -03:00
Evgeni Raikhel 5df082e231 [media] Documentation: Intel SR300 Depth camera INZI format
Provide the frame structure and data layout of V4L2-PIX-FMT-INZI
format utilized by Intel SR300 Depth camera.

Signed-off-by: Evgeni Raikhel <evgeni.raikhel@intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:46:42 -03:00
Hans Verkuil bff8ff6528 [media] vidioc-enumin/output.rst: improve documentation
The V4L2_INPUT_TYPE_CAMERA and V4L2_OUTPUT_TYPE_ANALOG descriptions were
hopelessly out of date. Fix this, and also fix a few style issues in these
documents. Finally add the missing documentation for V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY
(only used by the zoran driver).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:28:38 -03:00
Hans Verkuil 3369cde0af [media] video.rst: a sensor is also considered to be a physical input
Add the line "Camera sensors are also considered to be a video input."

In practice all non-MC drivers for sensors support the input ioctls, and the
compliance test actually tests for the presence of these ioctls. So clarify
the documentation by explicitly mentioning sensors.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:25:56 -03:00
Linus Torvalds 5b50be743f Driver core fixes for 4.11-rc6
Here are 3 small fixes for 4.11-rc6.  One resolves a reported issue with
 sysfs files that NeilBrown found, one is a documenatation fix for the
 stable kernel rules, and the last is a small MAINTAINERS file update for
 kernfs.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWOnrMw8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+yk/JQCfQKjOpGDAR9Hs6u4YQ4hJrAHFneYAn1F4MLDW
 3b0ZMnlZHkDq834UwKnB
 =iiei
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-4.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are 3 small fixes for 4.11-rc6.

  One resolves a reported issue with sysfs files that NeilBrown found,
  one is a documenatation fix for the stable kernel rules, and the last
  is a small MAINTAINERS file update for kernfs"

* tag 'driver-core-4.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  MAINTAINERS: separate out kernfs maintainership
  sysfs: be careful of error returns from ops->show()
  Documentation: stable-kernel-rules: fix stable-tag format
2017-04-09 09:03:51 -07:00
Linus Torvalds 2a610b8aa8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS fixes from Al Viro:
 "statx followup fixes and a fix for stack-smashing on alpha"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  alpha: fix stack smashing in old_adjtimex(2)
  statx: Include a mask for stx_attributes in struct statx
  statx: Reserve the top bit of the mask for future struct expansion
  xfs: report crtime and attribute flags to statx
  ext4: Add statx support
  statx: optimize copy of struct statx to userspace
  statx: remove incorrect part of vfs_statx() comment
  statx: reject unknown flags when using NULL path
  Documentation/filesystems: fix documentation for ->getattr()
2017-04-09 08:26:21 -07:00
Alexander Graf 3fe17e6826 KVM: arm/arm64: Add ARM user space interrupt signaling ABI
We have 2 modes for dealing with interrupts in the ARM world. We can
either handle them all using hardware acceleration through the vgic or
we can emulate a gic in user space and only drive CPU IRQ pins from
there.

Unfortunately, when driving IRQs from user space, we never tell user
space about events from devices emulated inside the kernel, which may
result in interrupt line state changes, so we lose out on for example
timer and PMU events if we run with user space gic emulation.

Define an ABI to publish such device output levels to userspace.

Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-04-09 07:49:38 -07:00
Marc Zyngier d824ca52ab arm/arm64: Add hyp-stub API documentation
In order to help people understanding the hyp-stub API that exists
between the host kernel and the hypervisor mode (whether a hypervisor
has been installed or not), let's document said API.

As with any form of documentation, I expect it to become obsolete
and completely misleading within 20 minutes after having being merged.

Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-04-09 07:49:36 -07:00
Linus Torvalds c3df1c7c36 Late pin control fix for v4.11:
An issue was detected with pin control hos on the Freescale i.MX after
 the refactorings for more general group and function handling. We now
 have the proper fix for this.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJY6LkVAAoJEEEQszewGV1znr0P/17ltjCxoR9qYkMsreCs6FIk
 BSCx2UEmYt03WKizyj1M1/YKP2NYcngp8TXsRsMyi7vqMjVoL1BsPo8BjFGNI7lq
 znLyUWuP3xo9Y/naagxkfLw5TbfNF4hyL0JBchvg6ox1Kt7Z47Sed7KDXtB5QQdJ
 WbU4Hdo6ZG/nvl3LAc1wivF3qtnBsxIzx6CMiR2dyiOmLGADHj7jiJ70BuRMyTlo
 4no0Cfm93lnPo1ccNMVZY2Rqt09XhwPppewL7j2IqOin/Kr88qWKwdOheCu/Ojsp
 GJfTgKjVpieKW2PjkIiDDSiTKKkUvVmzEQz+qqXozjQSwwKtJ106xZ8fW+d5xFeY
 EJ3jsQtKdmI3q7M0mbYpfK0vM9C1MKMg71CJt8pvbtg2NXfAfLsA9BioVOGKrOua
 upy6RCMDhoBRh4jRjd5DcJPKRq45m/toVSZ+tfS1Nur2k3tXd41CI3y6D+wUlz95
 oq8QW2bWsC52vLXS6qywJkUM7CQiBs61FIryf84YC7mE4AqRFJpCZfBqrUYLkctN
 5OHF++wu6tEXYfgR6rtWY+c26xgc6PK/rALtYvzDC4o72Z0xQLlQqFnf6hGAp3Dl
 eosuW5TUvnlFUEMF3CEQwVHj3awpgdo6X4UnYDIxZDRU4R/vODH46s1H719TMIWx
 ZBztLllUHpn57LVRvudT
 =06og
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-v4.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fix from Linus Walleij:
 "This late fix for pin control is hopefully the last I send this cycle.

  The problem was detected early in the v4.11 release cycle and there
  has been some back and forth on how to solve it. Sadly the proper fix
  arrives late, but at least not too late.

  An issue was detected with pin control on the Freescale i.MX after the
  refactorings for more general group and function handling.

  We now have the proper fix for this"

* tag 'pinctrl-v4.11-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable()
2017-04-08 11:43:38 -07:00
Christoph Hellwig 48920ff2a5 block: remove the discard_zeroes_data flag
Now that we use the proper REQ_OP_WRITE_ZEROES operation everywhere we can
kill this hack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-08 11:25:38 -06:00
Jonathan Corbet 3d885bef0c Merge branch 'user-space-api' into docs-next
Create a beginning user-space API manual, and add one old doc that nobody
cares much about.  More useful stuff should come soon...
2017-04-08 11:25:37 -06:00
Johan Hovold 9581539e30 Documentation: stable-kernel-rules: fix stable-tag format
A patch documenting how to specify which kernels a particular fix should
be backported to (seemingly) inadvertently added a minus sign after the
kernel version. This particular stable-tag format had never been used
prior to this patch, and was neither present when the patch in question
was first submitted (it was added in v2 without any comment).

Drop the minus sign to avoid any confusion.

Fixes: fdc81b7910 ("stable_kernel_rules: Add clause about specification of kernel versions to patch.")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-08 11:17:14 -06:00
Tsugikazu Shibata f012733894 Documentation: Add HOWTO Japanese translation into rst based build system
This commit adds Japanese translation of HOWTO document into rst based
documentation build system with updates.

Signed-off-by: Tsugikazu Shibata <tshibata@ab.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-08 11:13:05 -06:00
Chunyan Zhang 26b82caae4 dt-bindings: serial: add a new compatible string for SC9860
SC9860 use the same serial device which SC9836 uses, so added a new
compatible string to support SC9860 as well, also added an example
of how to describe this serial device in DT.

Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 18:42:46 +02:00
Chunyan Zhang 32680c53f7 dt-bindings: arm: Add bindings for SP9860G
Added bindings for Spreadtrum SP9860G board and SC9860 SoC.
This patch also revised bindings of SC9836 to make the format
more clear.

Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 18:42:46 +02:00
Linus Walleij 96b3c83303 iio: xoadc: augment DT bindings a bit
In order to accommodate in a logical manner for the premuxed channels
in PM8921 and the similarly addressed channels in later PMICs, we
need a twocell arrangement with premux and analog mux setting as
a tuple to uniquely identify a hardware channel.

These bindings are not yet in use, so it should be fine to augment
them before we actually start using it in drivers and device trees.

This scheme came out of lengthy discussions and reverse-engineering
and reading of the few information sources we have.

Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh+dt@kernel.org>
Suggested-by: Björn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-08 17:40:07 +01:00
Thomas Hellstrom fd0f50db2e Revert "kref: double kref_put() in my_data_handler()"
This reverts commit 8f1ecc9fbc.

The correction is incorrect, see discussion at

http://stackoverflow.com/questions/20093127/why-kref-doc-of-linux-kernel-omits-kref-put-when-kthread-run-fail

Reported-by: KrishnamRaju raju <ekraju@gmail.com>
Cc: Roel Kluin <roel.kluin@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: KrishnamRaju raju <ekraju@gmail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 18:38:10 +02:00
Juri Lelli a2b60670ac Documentation/ABI: add information about cpu_capacity
/sys/devices/system/cpu/cpu#/cpu_capacity describe information about
CPUs heterogeneity (ref. to Documentation/devicetree/bindings/arm/
cpu-capacity.txt).

Add such description.

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 18:26:14 +02:00
Jacopo Mondi 3fed601c1c iio: Documentation: Add max9611 sysfs documentation
Add documentation for max9611 driver.
Document attributes describing value of shunt resistor installed between
RS+ and RS- voltage sense inputs.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-08 17:26:03 +01:00
Jacopo Mondi 2a70d55029 dt-bindings: iio: adc: Add max9611 ADC
Add device tree bindings documentation for Maxim max9611/max9612 current
sense amplifier.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-04-08 17:25:59 +01:00
Julius Werner 88cfb1eefc firmware: Add coreboot device tree binding documentation
This patch adds documentation describing a device tree binding for the
coreboot firmware. It is meant to be dynamically added during boot and
contains address definitions for the coreboot table (a list of
variable-sized descriptors providing information about various compile-
and run-time generated firmware parameters) and the CBMEM area (the
structure containing most run-time resident memory regions set up by
coreboot).

These definitions allow kernel drivers to easily access data contained
in and pointed to by these regions (such as coreboot's in-memory log).
(An example implementation can be seen in the following patch)

Signed-off-by: Julius Werner <jwerner@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 18:05:36 +02:00
Richard Leitner 0642bac7da nvmem: imx-ocotp: add write support
Implement write routine for OCOTP controller found in i.MX6 SoC's.
Furthermore add locking to the read function to prevent race conditions.
The write routine code is based on the fsl_otp driver from Freescale.

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 17:51:48 +02:00