Add links to the IEEE 802.3-2008 document, and the RGMII v1.3 and v2.0
revisions of the standard.
Reviewed-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

RGMII is a recurring source of pain for people with Gigabit Ethernet
hardware since it may require PHY driver and MAC driver level
configuration hints. Document what are the expectations from PHYLIB and
what options exist.
Reviewed-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Describe that the Ethernet MAC controller is ultimately responsible for
dealing with proper pause frames/flow control advertisement and
enabling, and that it is therefore allowed to have it change
phydev->supported/advertising with SUPPORTED_Pause and
SUPPORTED_AsymPause.
Reviewed-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove the function pointers documentation which duplicates information
found in include/linux/phy.h. Maintaining documentation about two
different locations just does not work, but the code is less likely to
be outdated.
Reviewed-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With the devices added to the tables, the probe will recognize the
switch. This however is not sufficient to make it work properly, other
changes are needed because of incompatibilities.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Userspace can read the exact value of kvmclock by reading the TSC
and fetching the timekeeping parameters out of guest memory.  This
however is brittle and not necessary anymore with KVM 4.11.  Provide
a mechanism that lets userspace know if the new KVM_GET_CLOCK
semantics are in effect, and---since we are at it---if the clock
is stable across all VCPUs.

Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NRadim Krčmář <rkrcmar@redhat.com>

This patch derives device tree node from pcie bus layer framework.
Device tree bindings file has been renamed(marvell-sd8xxx.txt ->
marvell-8xxx.txt) to accommodate PCIe changes.
Signed-off-by: NXinming Hu <huxm@marvell.com>
Signed-off-by: NRajat Jain <rajatja@google.com>
Reviewed-by: NBrian Norris <briannorris@chromium.org>
Signed-off-by: NAmitkumar Karwar <akarwar@marvell.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

The Aspeed SoCs have two BT interfaces : one is IPMI compliant and the
other is H8S/2168 compliant.

The current ipmi/bt-bmc driver implements the IPMI version and we
should reflect its nature in the compatible node name using
'aspeed,ast2400-ibt-bmc' instead of 'aspeed,ast2400-bt-bmc'. The
latter should be used for a H8S interface driver if it is implemented
one day.
Signed-off-by: NCédric Le Goater <clg@kaod.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Introduce managed counterparts for alloc_percpu() and free_percpu().
Add devm_alloc_percpu() and devm_free_percpu() into the managed
interfaces list.
Signed-off-by: NMadalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add documentation how devicetree can be used to configure ath9k based
devices.
Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Signed-off-by: NPeter Rosin <peda@axentia.se>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

pm_rst, aclk_rst, pclk_rst was controlled by ROM code so the software
wasn't needed to control it again in theory.  But it didn't work properly,
so we do need to do it again and add enough delay between the assert of
pm_rst and the deassert of pm_rst.  The Soc intergrated with this
controller, rk3399, is still under MP test internally, so the backward
compatibility won't be a big deal.
Signed-off-by: NShawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NRob Herring <robh@kernel.org>

Since there is not enough tcam table entries for every vlan and multicast
address, HNS needs to add support of fuzzy matching of TCAM tables. Adding
the property to mask the bits to be fuzzy matched, so update the bindings
document
Signed-off-by: NKejian Yan <yankejian@huawei.com>
Reviewed-by: NYisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: NSalil Mehta <salil.mehta@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds documentation for some SR-related per-interface
sysctls.
Signed-off-by: NDavid Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There is some difference between force_igmp_version and force_mld_version.
Add document to make users aware of this.
Signed-off-by: NHangbin Liu <liuhangbin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In order to support PHY switching on Amlogic GXL SoCs, add support for
16bit and 32bit registers sizes.
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add Qualcomm QCA tagging introduced in cafdc45c to the
list of supported protocols.
Signed-off-by: NFabian Mewes <architekt@coding4coffee.org>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NH. Nikolaus Schaller <hns@goldelico.com>
Acked-by: NPeter Ujfalusi <perter.ujfalusi@ti.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NTony Lindgren <tony@atomide.com>

Clean-up the documentation to the bgmac-amac driver, per suggestion by
Rob Herring, and add details for NS2 support.
Signed-off-by: NJon Mason <jon.mason@broadcom.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add the documentation for PHY lane swapping.  This is a boolean entry to
notify the phy device drivers that the TX/RX lanes need to be swapped.
Signed-off-by: NJon Mason <jon.mason@broadcom.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add reset-names property for binding dw-mmc controller.
It might be used together with "reset" property.
-  Note: It must be "reset" as name.

Fixes: d6786fef ("mmc: dw_mmc: add reset support to dwmmc host controller")
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Acked-by: NJohn Stultz <john.stultz@linaro.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

Signed-off-by: NNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The "What:" field at the ABI should describe the location of
the ABI, e. g. the position under a mounted sysfs. However,
this file has only the basename without the path.

Fix it.

Cc: Vernon Mauery <vernux@us.ibm.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>

stm32 pinctrl driver could be probed even if no interrupt controller
is defined to manage gpio irqs. Entries related to gpio irq management
are moved to optional.
Signed-off-by: NAlexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

The MAC is capable of RGMII mode and that is probably a more typical
connection type than GMII today (eg it is used by Marvell Reference
designs for several SOCs). Let DT users specify the standard

   phy-connection-type = "rgmii-id";

On a phy node.
Signed-off-by: NJason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Renesas RZ/G SoC also have the SCIF, SCIFA, SCIFB, and HSCIF ports and
they  seem compatible with the R-Car gen2 SoC  in this respect...
Document RZ/G1[ME] (also known as R8A774[35]) SoC bindings.
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: NSimon Horman <horms+renesas@verge.net.au>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch Adds the new compatible string for ZynqMP SoC.
Signed-off-by: NNava kishore Manne <navam@xilinx.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This is long overdue, and not really hard.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Message-Id: <1476357057-17899-1-git-send-email-pbonzini@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

I made a mistake as for naming for this block.  The MIO block is not
implemented for these 3 SoCs in the first place.  The current naming
will be a trouble if an SoC with both MIO and SD-ctrl blocks appear
in the future.

This driver has just been merged in the previous merge window.
Rename it before the release.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>

Signed-off-by: NRich Felker <dalias@libc.org>
Acked-by: NRob Herring <robh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Link: http://lkml.kernel.org/r/8b107c292ed8cf8eed0fa283071fc8a930098628.1476393790.git.dalias@libc.orgSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

gpiod_set_value() is preffered interface these days, so add a
pointer. Also fix a missing ).
Signed-off-by: NPavel Machek <pavel@ucw.cz>
[Fixed some grammar and reworded]
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This reverts more of:

  b7643757 ("procfs: mark thread stack correctly in proc/<pid>/maps")

... which was partially reverted by:

  65376df5 ("proc: revert /proc/<pid>/maps [stack:TID] annotation")

Originally, /proc/PID/task/TID/maps was the same as /proc/TID/maps.

In current kernels, /proc/PID/maps (or /proc/TID/maps even for
threads) shows "[stack]" for VMAs in the mm's stack address range.

In contrast, /proc/PID/task/TID/maps uses KSTK_ESP to guess the
target thread's stack's VMA.  This is racy, probably returns garbage
and, on arches with CONFIG_TASK_INFO_IN_THREAD=y, is also crash-prone:
KSTK_ESP is not safe to use on tasks that aren't known to be running
ordinary process-context kernel code.

This patch removes the difference and just shows "[stack]" for VMAs
in the mm's stack range.  This is IMO much more sensible -- the
actual "stack" address really is treated specially by the VM code,
and the current thread stack isn't even well-defined for programs
that frequently switch stacks on their own.
Reported-by: NJann Horn <jann@thejh.net>
Signed-off-by: NAndy Lutomirski <luto@kernel.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux API <linux-api@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tycho Andersen <tycho.andersen@canonical.com>
Link: http://lkml.kernel.org/r/3e678474ec14e0a0ec34c611016753eea2e1b8ba.1475257877.git.luto@kernel.orgSigned-off-by: NIngo Molnar <mingo@kernel.org>

I made a mistake as for naming for this block.  The MIO block is not
implemented for these 3 SoCs in the first place.  The current naming
will be a trouble if an SoC with both MIO and SD-ctrl blocks appear
in the future.

This driver has just been merged in the previous merge window.
Rename it before the release.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>

This patch prevents resetting the cxl adapter via sysfs in presence of
one or more active cxl_context on it. This protects against an
unrecoverable error caused by PSL owning a dirty cache line even after
reset and host tries to touch the same cache line. In case a force reset
of the card is required irrespective of any active contexts, the int
value -1 can be stored in the 'reset' sysfs attribute of the card.

The patch introduces a new atomic_t member named contexts_num inside
struct cxl that holds the number of active context attached to the card
, which is checked against '0' before proceeding with the reset. To
prevent against a race condition where a context is activated just after
reset check is performed, the contexts_num is atomically set to '-1'
after reset-check to indicate that no more contexts can be activated on
the card anymore.

Before activating a context we atomically test if contexts_num is
non-negative and if so, increment its value by one. In case the value of
contexts_num is negative then it indicates that the card is about to be
reset and context activation is error-ed out at that point.

Fixes: 62fa19d4 ("cxl: Add ability to reset the card")
Cc: stable@vger.kernel.org # v4.0+
Acked-by: NFrederic Barrat <fbarrat@linux.vnet.ibm.com>
Reviewed-by: NAndrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: NVaibhav Jain <vaibhav@linux.vnet.ibm.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>

Add a workaround for mainstone, idp and stargate2 boards, for u16 writes
which must be aligned on 32 bits addresses.
Signed-off-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Cc: Jeremy Linton <jeremy.linton@arm.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add documention of ti,min-output-impedance and ti,max-output-impedance
which can be used to correct MAC impedance mismatch using phy extended
registers.
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The SPI1 function was associated with the wrong pins: The functions that
those pins provide is either an SPI debug or passthrough function
coupled to SPI1. Make the SPI1 mux function configure the relevant pins
and associate new SPI1DEBUG and SPI1PASSTHRU functions with the pins
that were already defined.

The notation used in the datasheet's multi-function pin table for the SoC is
often creative: in this case the SYS* signals are enabled by a single bit,
which is nothing unusual on its own, but in this case the bit was also
participating in a multi-bit bitfield and therefore represented multiple
functions. This fact was overlooked in the original patch.

Fixes: 56e57cb6 (pinctrl: Add pinctrl-aspeed-g5 driver)
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

This binding was deprecated due to commit aa381a72 ("usb: dwc2:
gadget: fix TX FIFO size and address initialization"). However that
commit is now reverted, so also revert this commit.

The binding is valid and shouldn't be deprecated.

This reverts commit 65e1ff7f ("Documentation: devicetree: dwc2:
Deprecate g-tx-fifo-size").
Signed-off-by: NJohn Youn <johnyoun@synopsys.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NFelipe Balbi <felipe.balbi@linux.intel.com>

dm-raid 1.9.0 fails to activate existing RAID4/10 devices that have the
old superblock format (which does not have takeover/reshaping support
that was added via commit 33e53f06).

Fix validation path for old superblocks by reverting to the old raid4
layout and basing checks on mddev->new_{level,layout,...} members in
super_init_validation().

Cc: stable@vger.kernel.org # 4.8
Signed-off-by: NHeinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>