membarrier: riscv: Add full memory barrier in switch_mm()

commit d6cfd1770f20392d7009ae1fdb04733794514fa9 upstream.

The membarrier system call requires a full memory barrier after storing
to rq->cu

membarrier: riscv: Add full memory barrier in switch_mm()

commit d6cfd1770f20392d7009ae1fdb04733794514fa9 upstream.

The membarrier system call requires a full memory barrier after storing
to rq->curr, before going back to user-space. The barrier is only
needed when switching between processes: the barrier is implied by
mmdrop() when switching from kernel to userspace, and it's not needed
when switching from userspace to kernel.

Rely on the feature/mechanism ARCH_HAS_MEMBARRIER_CALLBACKS and on the
primitive membarrier_arch_switch_mm(), already adopted by the PowerPC
architecture, to insert the required barrier.

Fixes: fab957c11efe2f ("RISC-V: Atomic and Locking Code")
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/r/20240131144936.29190-2-parri.andrea@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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hwmon: Add driver for Astera Labs PT5161L retimer

This driver implements support for temperature monitoring of Astera Labs
PT5161L series PCIe retimer chips.

This driver implementation originates f

hwmon: Add driver for Astera Labs PT5161L retimer

This driver implements support for temperature monitoring of Astera Labs
PT5161L series PCIe retimer chips.

This driver implementation originates from the CSDK available at
Link: https://github.com/facebook/openbmc/tree/helium/common/recipes-lib/retimer-v2.14
The communication protocol utilized is based on the I2C/SMBus standard.

Signed-off-by: Cosmo Chou <chou.cosmo@gmail.com>
Link: https://lore.kernel.org/r/20240206125420.3884300-2-chou.cosmo@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
(cherry picked from commit 1b2ca93cd0592b1fcbc6f8b64e02552bc15f4bb4)
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>

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dt-bindings: hwmon: Add lltc ltc4286 driver bindings

Add a device tree bindings for ltc4286 device.

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@Wiwynn.com>
Reviewed-by: Conor Dooley <conor.do

dt-bindings: hwmon: Add lltc ltc4286 driver bindings

Add a device tree bindings for ltc4286 device.

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@Wiwynn.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231123015440.199822-2-Delphine_CC_Chiu@Wiwynn.com
[groeck: Fixed path to ltc4286.rst]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
(cherry picked from commit 7707cf82e1380776afc0fcd276ce48b71c521801)
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>

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pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()

[ Upstream commit c748a6d77c06a78651030e17da6beb278a1c9470 ]

In order to introduce a pwm api which can be used from atomic context,
we will

pwm: Rename pwm_apply_state() to pwm_apply_might_sleep()

[ Upstream commit c748a6d77c06a78651030e17da6beb278a1c9470 ]

In order to introduce a pwm api which can be used from atomic context,
we will need two functions for applying pwm changes:

int pwm_apply_might_sleep(struct pwm *, struct pwm_state *);
int pwm_apply_atomic(struct pwm *, struct pwm_state *);

This commit just deals with renaming pwm_apply_state(), a following
commit will introduce the pwm_apply_atomic() function.

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # for input
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Stable-dep-of: 974afccd3794 ("leds: pwm: Disable PWM when going to suspend")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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iio: add the IIO backend framework

[ Upstream commit 1a97905d3e48ebe79a06d16143fbfa427c56ce5f ]

This is a Framework to handle complex IIO aggregate devices.

The typical architecture is to have one

iio: add the IIO backend framework

[ Upstream commit 1a97905d3e48ebe79a06d16143fbfa427c56ce5f ]

This is a Framework to handle complex IIO aggregate devices.

The typical architecture is to have one device as the frontend device which
can be "linked" against one or multiple backend devices. All the IIO and
userspace interface is expected to be registers/managed by the frontend
device which will callback into the backends when needed (to get/set
some configuration that it does not directly control).

The basic framework interface is pretty simple:
- Backends should register themselves with @devm_iio_backend_register()
- Frontend devices should get backends with @devm_iio_backend_get()

Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240210-iio-backend-v11-5-f5242a5fb42a@analog.com
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Stable-dep-of: cf1c833f89e7 ("iio: adc: adi-axi-adc: only error out in major version mismatch")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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ALSA: scarlett2: Rename scarlett_gen2 to scarlett2

[ Upstream commit efc3d7d20361cc59325a9f0525e079333b4459c0 ]

This driver was originally developed for the Focusrite Scarlett Gen 2
series. Since t

ALSA: scarlett2: Rename scarlett_gen2 to scarlett2

[ Upstream commit efc3d7d20361cc59325a9f0525e079333b4459c0 ]

This driver was originally developed for the Focusrite Scarlett Gen 2
series. Since then Focusrite have used a similar protocol for their
Gen 3, Gen 4, Clarett USB, Clarett+, and Vocaster series.

Let's call this common protocol the "Scarlett 2 Protocol" and rename
the driver to scarlett2 to not imply that it is restricted to Gen 2
series devices.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/e1ad7f69a1e20cdb39094164504389160c1a0a0b.1698342632.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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MAINTAINERS: add Catherine as xfs maintainer for 6.6.y

This is an attempt to direct the bots and humans that are testing
LTS 6.6.y towards the maintainer of xfs in the 6.6.y tree.

Signed-off-by: Ca

MAINTAINERS: add Catherine as xfs maintainer for 6.6.y

This is an attempt to direct the bots and humans that are testing
LTS 6.6.y towards the maintainer of xfs in the 6.6.y tree.

Signed-off-by: Catherine Hoang <catherine.hoang@oracle.com>
Acked-by: Chandan Babu R <chandanbabu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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media: nuvoton: Add driver for NPCM video capture and encoding engine

Add driver for Video Capture/Differentiation Engine (VCD) and Encoding
Compression Engine (ECE) present on Nuvoton NPCM SoCs. As

media: nuvoton: Add driver for NPCM video capture and encoding engine

Add driver for Video Capture/Differentiation Engine (VCD) and Encoding
Compression Engine (ECE) present on Nuvoton NPCM SoCs. As described in
the datasheet NPCM750D_DS_Rev_1.0, the VCD can capture frames from
digital video input and compare two frames in memory, and then the ECE
can compress the frame data into HEXTILE format. This driver implements
V4L2 interfaces and provides user controls to support KVM feature, also
tested with VNC Viewer ver.6.22.826 and openbmc/obmc-ikvm.

OpenBMC-Staging-Count: 1
Signed-off-by: Marvin Lin <milkfafa@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
(cherry picked from commit 46c15a4ff1f4fe078c5b250fb2570020211eab38)
Signed-off-by: Joel Stanley <joel@jms.id.au>

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soc: aspeed: Add XDMA Engine Driver

The XDMA engine embedded in the AST2500 and AST2600 SOCs performs PCI
DMA operations between the SOC (acting as a BMC) and a host processor
in a server.

This com

soc: aspeed: Add XDMA Engine Driver

The XDMA engine embedded in the AST2500 and AST2600 SOCs performs PCI
DMA operations between the SOC (acting as a BMC) and a host processor
in a server.

This commit adds a driver to control the XDMA engine and adds functions
to initialize the hardware and memory and start DMA operations.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/1588697905-23444-3-git-send-email-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

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dt-bindings: soc: Add Aspeed XDMA Engine

Document the bindings for the Aspeed AST25XX and AST26XX XDMA engine.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Andrew Jeffery <andrew

dt-bindings: soc: Add Aspeed XDMA Engine

Document the bindings for the Aspeed AST25XX and AST26XX XDMA engine.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/1588697905-23444-2-git-send-email-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

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fpga: m10bmc-sec: Change contact for secure update driver

Change the maintainer for the Intel MAX10 BMC Secure Update driver from
Russ Weight to Peter Colberg. Update the ABI documentation contact
i

fpga: m10bmc-sec: Change contact for secure update driver

Change the maintainer for the Intel MAX10 BMC Secure Update driver from
Russ Weight to Peter Colberg. Update the ABI documentation contact
information as well.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Acked-by: Peter Colberg <peter.colberg@intel.com>
Link: https://lore.kernel.org/r/20230928164753.278684-1-russell.h.weight@intel.com
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Link: https://lore.kernel.org/r/20231023032857.902699-2-yilun.xu@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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MAINTAINERS: Ondrej has moved

Update my email-address in MAINTAINERS to <megi@xff.cz>. Also add
.mailmap entries to map my old, now blocked, email address.

Link: https://lkml.kernel.org/r/20231008

MAINTAINERS: Ondrej has moved

Update my email-address in MAINTAINERS to <megi@xff.cz>. Also add
.mailmap entries to map my old, now blocked, email address.

Link: https://lkml.kernel.org/r/20231008105812.1084226-1-megi@xff.cz
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Cc: Bjorn Andersson <quic_bjorande@quicinc.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org> # qcom
Cc: Mark Brown <broonie@kernel.org>
Cc: Qais Yousef <qyousef@layalina.io>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

show more ...

MAINTAINERS: nolibc: update tree location

The nolibc tree moved out of Willys user namespace into its own.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>

MAINTAINERS: nolibc: update tree location

The nolibc tree moved out of Willys user namespace into its own.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20230916-nolibc-tree-v1-1-06c9b59a5035@weissschuh.net

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IXP4xx MAINTAINERS entries

Update MAINTAINERS entries for Intel IXP4xx SoCs.

Linus has been handling all IXP4xx stuff since 2019 or so.

Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Acked-by:

IXP4xx MAINTAINERS entries

Update MAINTAINERS entries for Intel IXP4xx SoCs.

Linus has been handling all IXP4xx stuff since 2019 or so.

Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Deepak Saxena <dsaxena@plexity.net>
Link: https://lore.kernel.org/r/m3ttqxu4ru.fsf@t19.piap.pl
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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platform/x86: wmi: Update MAINTAINERS entry

Since 2011, the WMI subsystem is marked as orphaned,
which means that a important part of platform support
for modern notebooks and even desktops is recei

platform/x86: wmi: Update MAINTAINERS entry

Since 2011, the WMI subsystem is marked as orphaned,
which means that a important part of platform support
for modern notebooks and even desktops is receiving
not enough maintenance.
So i decided to take over the maintenance of the WMI
subsystem.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231007233933.72121-2-W_Armin@gmx.de
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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MAINTAINERS: Remove myself from the general IRQ subsystem maintenance

It is pretty obvious that I haven't done much on the IRQ side
for a while, and it is unlikely that I'll have more bandwidth
for

MAINTAINERS: Remove myself from the general IRQ subsystem maintenance

It is pretty obvious that I haven't done much on the IRQ side
for a while, and it is unlikely that I'll have more bandwidth
for it any time soon. People keep sending me patches that
I end-up reviewing in a cursory manner, which isn't great for
anyone.

So in everyone's interest, I'm removing myself from the list
of maintainers and leave the irqchip and irqdomain subsystems
in Thomas' capable hands.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231002141302.3409485-3-maz@kernel.org

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MAINTAINERS: Add myself as the ARM GIC maintainer

The ARM GIC maintenance is currently covered by the blanket
IRQCHIP DRIVERS entry, which I'm about to remove myself from.

It is unlikely that anyon

MAINTAINERS: Add myself as the ARM GIC maintainer

The ARM GIC maintenance is currently covered by the blanket
IRQCHIP DRIVERS entry, which I'm about to remove myself from.

It is unlikely that anyone is mad enough to pick this up,
so I'll keep doing that for the foreseable future.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <zenghui.yu@linux.dev>
Link: https://lore.kernel.org/r/20231002141302.3409485-2-maz@kernel.org

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MAINTAINERS: update the dm-devel mailing list

dm-devel@redhat.com has migrated to dm-devel@lists.linux.dev

Signed-off-by: Mike Snitzer <snitzer@kernel.org>

MAINTAINERS: Add Angelo as MediaTek SoC co-maintainer

I am a top reviewer mainly for MediaTek SoC related patches in most
subsystems and I've also been upstreaming both improvements, fixes
and new d

MAINTAINERS: Add Angelo as MediaTek SoC co-maintainer

I am a top reviewer mainly for MediaTek SoC related patches in most
subsystems and I've also been upstreaming both improvements, fixes
and new drivers and devicetrees when required.

The MediaTek scene saw a generous increase in number of patches that
are sent to the lists every week, increasing the amount of required
efforts to maintain the MTK bits overall, and we will possibly see
even more of that.

For this reason, and also because of suggestions and encouragement
coming from the community, I'm stepping up to be a co-maintainer of
MediaTek SoCs support.

Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20230929082009.71843-1-angelogioacchino.delregno@collabora.com
Link: https://lore.kernel.org/r/20231003-mediatek-fixes-v6-7-v1-1-dad7cd62a8ff@collabora.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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MAINTAINERS: update Matthieu's email address

Use my kernel.org account instead.

The other one will bounce by the end of the year.

Signed-off-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by:

MAINTAINERS: update Matthieu's email address

Use my kernel.org account instead.

The other one will bounce by the end of the year.

Signed-off-by: Matthieu Baerts <matttbe@kernel.org>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20231004-send-net-20231004-v1-3-28de4ac663ae@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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firmware_loader: Update contact emails for ABI docs

Update the firmware_loader documentation and corresponding section
in the MAINTAINERs file with a new email address.

Signed-off-by: Russ Weight <

firmware_loader: Update contact emails for ABI docs

Update the firmware_loader documentation and corresponding section
in the MAINTAINERs file with a new email address.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Link: https://lore.kernel.org/r/20230929151326.311959-1-russell.h.weight@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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MAINTAINERS: Fix Florian Fainelli's email address

Commit 31345a0f5901 ("MAINTAINERS: Replace my email address") added 13
instances of ...@broadcom.com and one of only ...@broadcom. I didn't
double c

MAINTAINERS: Fix Florian Fainelli's email address

Commit 31345a0f5901 ("MAINTAINERS: Replace my email address") added 13
instances of ...@broadcom.com and one of only ...@broadcom. I didn't
double check if Broadcom really owns that TLD, but git send-email
doesn't accept it, so add ".com" to that one bogous(?) instance.

Fixes: 31345a0f5901 ("MAINTAINERS: Replace my email address")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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MAINTAINERS: update nouveau maintainers

Since I will continue to work on Nouveau consistently, also beyond my
former and still ongoing VM_BIND/EXEC work, add myself to the list of
Nouveau maintainer

MAINTAINERS: update nouveau maintainers

Since I will continue to work on Nouveau consistently, also beyond my
former and still ongoing VM_BIND/EXEC work, add myself to the list of
Nouveau maintainers.

Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230926014913.7721-1-dakr@redhat.com

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MAINTAINERS: aspeed: Update Andrew's email address

I've changed employers, have company email that deals with patch-based
workflows without too much of a headache, and am trying to steer some
conten

MAINTAINERS: aspeed: Update Andrew's email address

I've changed employers, have company email that deals with patch-based
workflows without too much of a headache, and am trying to steer some
content out of my personal mail.

Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230925030647.40283-1-andrew@codeconstruct.com.au
Signed-off-by: Joel Stanley <joel@jms.id.au>

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MAINTAINERS: aspeed: Update git tree URL

The description for joel/aspeed.git on git.kernel.org currently says:

Old Aspeed tree. Please see joel/bmc.git

Let's update MAINTAINERS accordingly.

S

MAINTAINERS: aspeed: Update git tree URL

The description for joel/aspeed.git on git.kernel.org currently says:

Old Aspeed tree. Please see joel/bmc.git

Let's update MAINTAINERS accordingly.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Acked-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230922223405.24717-2-zev@bewilderbeest.net
Signed-off-by: Joel Stanley <joel@jms.id.au>

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