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Freshen up the maintainer PGP guide:
- Bump minimum GnuPG version requirement from 2.2 to 2.4, since 2.2 is
no longer maintained
- All major hardware tokens now support Curve25519, so remove outdated
ECC support callouts
- Update hardware device recommendations (Nitrokey Pro 2 -> Nitrokey 3)
- Broaden backup media terminology (USB thumb drive -> external media)
- Update wording to follow vale's linter recommendations
- Various minor wording improvements for clarity
Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Reviewed-by: Paul Barker <paul@pbarker.dev>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20250902-pgp-guide-updates-v1-1-62ac7312d3f9@linuxfoundation.org>
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Every now and then people send stylistic patches and use Fixes
purely to refer to a commit which added the ugly or unnecessary
code. Reword the docs about Fixes.
It should hopefully be enough to lead with the word "bug"
rather than "issue". We can add more verbiage later, tho, let's
try the word swap first. I always feel like the more words the
smaller the chance someone will actually read the docs.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20250904144533.2146576-1-kuba@kernel.org>
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Add a new script and a new documentation 'make' target,
htmldocs-redirects.
This will generate HTML stub files in the HTML documentation output
directory that redirect the browser to the new path.
Suggested-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20250905144608.577449-4-vegard.nossum@oracle.com>
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This is the result of running:
scripts/documentation-gen-renames.py --rev v6.17-rc3 > Documentation/.renames.txt
This file records renames in the Documentation/ directory so that we
can use it to quickly generate HTML redirects from removed paths.
Suggested-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20250905144608.577449-3-vegard.nossum@oracle.com>
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Commit e9bb627561535d ("docs: w1: convert to ReST and add to the kAPI
group of docs") converts 1-Wire docs to reST alongside with SPDX
comment, yet the comment is written in one dot as opposed to two in
order to be recognized as comment directive, which spills it into
htmldocs output. This issue is partially fixed in d8fb03e1ea64e7 ("docs:
w1: Fix SPDX-License-Identifier syntax") as it only touches top-level w1
toctree.
Do the same fix on masters and slaves toctrees.
Fixes: e9bb62756153 ("docs: w1: convert to ReST and add to the kAPI group of docs")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20250909022142.18007-1-bagasdotme@gmail.com>
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Add binding for the Samsung Galaxy S20 board, codenamed X1Q,
which is based on the Qualcomm Snapdragon 865 SoC.
Signed-off-by: Eric Gonçalves <ghatto404@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250905190931.27481-3-ghatto404@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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This patch completes the removal of struct_mutex from the driver.
Remove the related TODO item, as the transition away from struct_mutex
is now complete.
Also clean up references to struct_mutex in i915.rst to avoid outdated
documentation.
Signed-off-by: Luiz Otavio Mello <luiz.mello@estudante.ufscar.br>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20250908131518.36625-10-luiz.mello@estudante.ufscar.br
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Property descriptions should indent with two spaces and they do not need
to preserve formatting.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250909140331.69756-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add the compatible string "qcom,qcs8300-camss" to support the
Camera Subsystem (CAMSS) on the Qualcomm QCS8300 platform.
The QCS8300 platform provides:
- 2 x VFE (version 690), each with 3 RDI
- 5 x VFE Lite (version 690), each with 6 RDI
- 2 x CSID (version 690)
- 5 x CSID Lite (version 690)
- 3 x CSIPHY (version 690)
- 3 x TPG
Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add the compatible string "qcom,sa8775p-camss" to support the
Camera Subsystem (CAMSS) on the Qualcomm lemans platform.
The Lemans(SA8775P) platform provides:
- 2 x VFE (version 690), each with 3 RDI
- 5 x VFE Lite (version 690), each with 6 RDI
- 2 x CSID (version 690)
- 5 x CSID Lite (version 690)
- 4 x CSIPHY (version 690)
- 3 x TPG
Lemans is the first Qualcomm SoC to introduce a CSIPHY-based
Test Pattern Generator (TPG).
Co-developed-by: Wenmeng Liu <quic_wenmliu@quicinc.com>
Signed-off-by: Wenmeng Liu <quic_wenmliu@quicinc.com>
Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add bindings for qcom,qcm2290-camss in order to support the camera
subsystem found in the Qualcomm Robotics RB1 Platform (QRB2210).
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
[bod: reordered patch title to dt-bindings: media]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The Qualcomm SoC Iris video codec is an evolution of previous Venus and
it comes with its own Iris Linux drivers. These new drivers were
accepted under condition they actually improve state of afairs, instead
of duplicating old, legacy solutions.
Unfortunately binding still references common parts of Venus without
actual need and benefit. For example Iris does not use fake
"video-firmware" device node (fake because there is no actual device
underlying it and it was added only to work around some Linux issues
with IOMMU mappings).
Stop referencing venus-common schema in the new Qualcomm Iris bindings
and move all necessary properties, except unused "video-firmware" (no
driver usage, no DTS).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bod@kernel.org>
[bod: Changed title order to dt-bindings: media]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add binding for Qualcom SM8750 Iris video codec, which comes with
significantly different powering up sequence than previous SM8650, thus
different clocks and resets. For consistency keep existing clock and
clock-names naming, so the list shares common part.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
[bod: re-ordered patch title to dt-bindings: media]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Iris in X1E80100 is pretty much identical to SM8550. We can use the same
firmware image and the same definitions in the driver, so just add
qcom,x1e80100-iris to the existing list with qcom,sm8550-iris as fallback
compatible.
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Replace quic_dikshita@quicinc.com by dikshita.agarwal@oss.qualcomm.com.
Signed-off-by: Dikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
[bod: Fixed patch title]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The ov6650 driver was introduced in v2.6.37 to support the OMAP1-based
Amstrad Delta video phone. The platform still has a board file in the
kernel, but support for the camera was dropped in commit ce548396a433
("media: mach-omap1: board-ams-delta.c: remove soc_camera dependencies")
in v5.9. The driver has been unused since as it has received neither
ACPI nor DT support.
The ov6650 driver is one of the last sensor drivers calling
clk_set_rate(). This is deprecated, and calls to the function are being
removed to avoid cargo-cult. As the driver is unlikely to ever be used
again, drop it instead of trying to avoid call clk_set_rate().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The sensor requires an external clock, and drivers need to access the
clock to retrieve its frequency in order to configure the sensor. This
makes usage of the clocks property mandatory for a system to work
properly. Mark the clocks and clock-names properties as required, and
update the example accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The sensor requires an external clock, and drivers need to access the
clock to retrieve its frequency in order to configure the sensor. This
makes usage of the clocks property mandatory for a system to work
properly. Mark the property as required.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Usage of the clock-frequency property for camera sensors is discouraged
in favour of using assigned-clock-rates (and assigned-clock-parents
where needed). Drop the property, and update the example accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Usage of the clock-frequency property for camera sensors is discouraged
in favour of using assigned-clock-rates (and assigned-clock-parents
where needed). Mark the property as deprecated.
Update the examples accordingly. In DT examples where the sensor input
clock appears to come from a programmable clock generator, replace
clock-frequency by the assigned-clocks and assigned-clock-rates
properties. Otherwise, just drop clock-frequency.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add bindings for Omnivision OV2735 sensor.
Add MAINTAINERS entry for Omnivision OV2735 binding documentation
Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
Signed-off-by: Hardevsinh Palaniya <hardevsinh.palaniya@siliconsignals.io>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add device tree bindings documentation for OmniVision OG0VE1B camera
sensor.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add device tree bindings documentation for OmniVision OV6211 image
sensor.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add a schema for the venus video encoder/decoder on the qcm2290.
The order of the IOMMU list is strict: the first two entries correspond
to non-secure IOMMUs, and the remaining three to secure IOMMUs.
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Replace hverkuil@xs4all.nl by hverkuil@kernel.org.
Signed-off-by: Hans Verkuil <hverkuil@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Replace hverkuil-cisco@xs4all.nl by hverkuil@kernel.org.
Signed-off-by: Hans Verkuil <hverkuil@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Add sensirion,sht2x trivial sensors.
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250908-sht2x-v4-3-bc15f68af7de@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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array
The documentation of the 'bcm_msg_head' struct does not match how
it is defined in 'bcm.h'. Changed the frames member to a flexible array,
matching the definition in the header file.
See commit 94dfc73e7cf4 ("treewide: uapi: Replace zero-length arrays with
flexible-array members")
Signed-off-by: Alex Tran <alex.t.tran@gmail.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20250904031709.1426895-1-alex.t.tran@gmail.com
Fixes: 94dfc73e7cf4 ("treewide: uapi: Replace zero-length arrays with flexible-array members")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217783
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Add compatible strings for the four SCU interrupt controller instances
on the AST2700 SoC (scu-ic0 to 3), following the multi-instance model used
on AST2600.
Also define interrupt indices in the binding header.
Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/all/20250908011812.1033858-4-ryan_chen@aspeedtech.com
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Add SCU interrupt controller compatible strings for the AST2700 SoC:
scu-ic0 to 3. This extends the MFD binding to support AST2700-based
platforms.
Signed-off-by: Ryan Chen <ryan_chen@aspeedtech.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/all/20250908011812.1033858-3-ryan_chen@aspeedtech.com
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Add a new ad_select policy 'port_priority' that uses the per-port
actor priority values (set via ad_actor_port_prio) to determine
aggregator selection.
This allows administrators to influence which ports are preferred
for aggregation by assigning different priority values, providing
more flexible load balancing control in LACP configurations.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250902064501.360822-3-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Introduce a new netlink attribute 'actor_port_prio' to allow setting
the LACP actor port priority on a per-slave basis. This extends the
existing bonding infrastructure to support more granular control over
LACP negotiations.
The priority value is embedded in LACPDU packets and will be used by
subsequent patches to influence aggregator selection policies.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250902064501.360822-2-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Update ti,tas2781.yaml for adding tas2118, tas2x20, tas257x and tas582x.
Signed-off-by: Baojun Xu <baojun.xu@ti.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The i.MX6Q Reference Manual describes the three digital LDO regulators
as follows:
"10.4.1.1.1
Digital LDO Regulators
The integrated PMU includes three digital LDO regulators: LDO_ARM, LDO_PU, and
LDO_SOC. These regulators provide power to the ARM_Core power domain, the
combined VPU, IPU and GPU power domain, and the rest of the SoC logic (except
always-ON SNVS domain)."
imx6dl.dtsi uses the correct names to describe these supplies:
arm-supply = <®_arm>;
pu-supply = <®_pu>;
soc-supply = <®_soc>;
'arm-supply' and 'soc-supply' are already documented, but 'pu-supply' is not.
Document the 'pu-supply' property and set it to deprecated.
This fixes the following dt-schema warning:
cpu@1 (arm,cortex-a9): Unevaluated properties are not allowed ('pu-supply' was unexpected)
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250907152513.590218-1-festevam@gmail.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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DP-to-HDMI bridge
The Realtek RTD2171 chipset is a transparent DisplayPort 1.4 to
HDMI 2.0 bridge.
This chipset is usually found in USB-C To HDMI Adapters and Docks,
or laptops to provide HDMI display output.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250908-topic-x1e80100-hdmi-v3-1-c53b0f2bc2fb@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
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Add GPD fan driver document
Signed-off-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Link: https://lore.kernel.org/r/20250908-gpd_fan-v9-2-7b4506c03953@uniontech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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All sht2x chips share the same communication protocol so add support for
them.
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250908-sht2x-v4-2-bc15f68af7de@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Drop extra empty lines and organize sysfs entries in a table.
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20250908-sht2x-v4-1-bc15f68af7de@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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The 5" and 7" Raspberry Pi 720x1280 Display 2 MCU is a bit more
complex than the original Display 1 ATTINY88 and the binding is
also a bit more demanding. Split the binding into separate file
and fill in required gpio-controller, #gpio-cells and #pwm-cells
which must be present for the V2 MCU. Include mention of the 5"
panel in the description of Display 2, as the 5" panel uses the
same MCU.
Fixes: 6d09c6e474bd ("regulator: dt-bindings: rpi-panel: Add regulator for 7" Raspberry Pi 720x1280")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Message-ID: <20250905191637.147141-1-marek.vasut+renesas@mailbox.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Samsung S3C24xx family of SoCs was removed the Linux kernel in the
commit 61b7f8920b17 ("ARM: s3c: remove all s3c24xx support"), in January
2023. There are no in-kernel users of remaining S3C24xx compatibles.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-ID: <20250830132605.311115-4-krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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The ASpeed kcs-bmc nodes have a "clocks" property which isn't
documented. It looks like all the LPC child devices have the same clock
source and some of the drivers manage their clock. Perhaps it is the
parent device that should have the clock, but it's too late for that.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Message-ID: <20250807132852.3291305-1-robh@kernel.org>
Signed-off-by: Corey Minyard <corey@minyard.net>
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Introduce new bindings for the Monaco Evaluation Kit (EVK),
an IoT board based on the QCS8300 SoC.
Signed-off-by: Umang Chheda <umang.chheda@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250905192350.1223812-2-umang.chheda@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Descirbe A505 clocks it is using same clocks like A506.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Patchwork: https://patchwork.freedesktop.org/patch/672751/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
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Implement locking in the hardware monitoring core for drivers using
the _with_info() API functions.
Most hardware monitoring drivers need to support locking to protect
against parallel accesses from userspace. With older API functions, such
locking had to be implemented in the driver code since sysfs attributes
were created by the driver. However, the _with_info() API creates sysfs
attributes in the hardware monitoring core. This makes it easy to move
the locking primitives into that code. This has the benefit of simplifying
driver code while at the same time reducing the risk of incomplete of bad
locking implementations in hardware monitoring drivers.
While this means that all accesses are forced to be synchronized, this
has little if any practical impact since accesses are expected to be low
frequency and are typically synchronized from userspace anyway since
only a single process is accessing the data. On top of that, many drivers
use regmap, which also has its own locking scheme and already serializes
accesses.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add support for MPS VR controller mp29502. This driver exposes
telemetry and limits value readings and writtings.
Signed-off-by: Wensheng Wang <wenswang@yeah.net>
Link: https://lore.kernel.org/r/20250805102020.749850-3-wenswang@yeah.net
[groeck: Fixed document formatting]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add DeviceTree binding for Glymur SoC TLMM block
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Pankaj Patil <pankaj.patil@oss.qualcomm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The SME ABI documentation contains an inaccurate description of the
architectural streaming mode entry/exit behaviour, just remove it since
this is better documented by the architecture or with the rest of the
documentation for the specific software interfaces concerned.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
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This generic pin config property is confusingly named so let's
rename it to make things clearer.
There are already drivers in the tree that use PIN_CONFIG_OUTPUT
to *read* the value of an output driven pin, which is a big
semantic confusion for the head: are we then reading the
setting of the output or the actual value/level that is put
out on the pin?
We already have PIN_CONFIG_OUTPUT_ENABLE that turns on driver
buffers for output, so this can by logical conclusion only
drive the voltage level if it should be any different.
But if we read the pin, are we then reading the *setting* of
the output value or the *actual* value we can see on the
line?
If the pin has not first been set into output mode with
PIN_CONFIG_OUTPUT_ENABLE, but is instead in some input mode
or tristate, what will reading this property actually
return?
Reading the current users reading this property it is clear
that what we read is the logical level of the pin as 0 or 1
depending on if it is low or high.
Rename it to PIN_CONFIG_LEVEL so it is crystal clear that
we set or read the voltage level of the pin and nothing else.
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The STB pin controller represents a family whose silicon instances
are found e.g. on BCM2712 SoC.
In particular, on RaspberryPi 5, there are two separate instantiations
of the same IP block which differ in the number of pins that are
associated and the pinmux functions for each of those pins. The
-aon- variant stands for 'Always On'.
Depending on the revision of the BCM2712 (CO or D0), the pin
controller instance has slight differences in the register layout.
Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
[linusw: Dropped extranous label and fixed whitespace]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Loongson-2K0300 ships a GPIO controller whose input/output control logic
is similar to previous generation of SoCs. Additionally, it acts as an
interrupt-controller supporting both level and edge interrupts and has a
distinct reset signal.
Describe its compatible in devicetree. We enlarge the maximum value of
ngpios to 128, since the controller technically supports at most 128
pins, although only 106 are routed out of the package. Properties for
interrupt-controllers and resets are introduced and limited as LS2K0300
only.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250904013438.2405-2-ziyao@disroot.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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