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A handful drivers want to print a content of the struct timespec64
in a format of %lld:%09ld. In order to make their lives easier, add
the respecting specifier directly to the printf() implementation.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Link: https://patch.msgid.link/20251113150217.3030010-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
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The System Management Controller on Apple Silicon devices is responsible
for integrating and exposing the data reported by the vast array of
hardware monitoring sensors present on these devices. It is also
responsible for fan control, and allows users to manually set fan
speeds if they so desire. Add a hwmon driver to expose current,
power, temperature, and voltage monitoring sensors, as well as
fan speed monitoring and control via the SMC on Apple Silicon devices.
The SMC firmware has no consistency between devices, even when they
share an SoC. The FourCC keys used to access sensors are almost
random. An M1 Mac mini will have different FourCCs for its CPU core
temperature sensors to an M1 MacBook Pro, for example. For this
reason, the valid sensors for a given device are specified in a
child of the SMC Devicetree node. The driver uses this information
to determine which sensors to make available at runtime.
Reviewed-by: Neal Gompa <neal@gompa.dev>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Co-developed-by: Janne Grunau <j@jannau.net>
Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: James Calligeros <jcalligeros99@gmail.com>
Link: https://lore.kernel.org/r/20251112-macsmc-subdevs-v5-6-728e4b91fe81@gmail.com
[groeck: Added Documentation to index]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Since commit 1b255e1beabf ("tools: ynl: add ipv4-or-v6 display hint"), we
can display either IPv4 or IPv6 addresses for a single field based on the
address family. However, most dual-stack fields still use the ipv4 display
hint. This update changes them to use the new ipv4-or-v6 display hint and
converts IPv4-only fields to use the u32 type.
Field changes:
- v4-or-v6
- IFA_ADDRESS, IFA_LOCAL
- IFLA_GRE_LOCAL, IFLA_GRE_REMOTE
- IFLA_VTI_LOCAL, IFLA_VTI_REMOTE
- IFLA_IPTUN_LOCAL, IFLA_IPTUN_REMOTE
- NDA_DST
- RTA_DST, RTA_SRC, RTA_GATEWAY, RTA_PREFSRC
- FRA_SRC, FRA_DST
- ipv4
- IFA_BROADCAST
- IFLA_GENEVE_REMOTE
- IFLA_IPTUN_6RD_RELAY_PREFIX
Reviewed-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20251117024457.3034-3-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2025-11-18
1) Relax a lock contention bottleneck to improve IPsec crypto
offload performance. From Jianbo Liu.
2) Deprecate pfkey, the interface will be removed in 2027.
3) Update xfrm documentation and move it to ipsec maintainance.
From Bagas Sanjaya.
* tag 'ipsec-next-2025-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next:
MAINTAINERS: Add entry for XFRM documentation
net: Move XFRM documentation into its own subdirectory
Documentation: xfrm_sync: Number the fifth section
Documentation: xfrm_sysctl: Trim trailing colon in section heading
Documentation: xfrm_sync: Trim excess section heading characters
Documentation: xfrm_sync: Properly reindent list text
Documentation: xfrm_device: Separate hardware offload sublists
Documentation: xfrm_device: Use numbered list for offloading steps
Documentation: xfrm_device: Wrap iproute2 snippets in literal code block
pfkey: Deprecate pfkey
xfrm: Skip redundant replay recheck for the hardware offload path
xfrm: Refactor xfrm_input lock to reduce contention with RSS
====================
Link: https://patch.msgid.link/20251118092610.2223552-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The pic64gx uses an identical integration of the macb IP to mpfs.
Signed-off-by: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251117-easter-machine-37851f20aaf3@spud
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add interconnect dt-bindings and driver support for Qualcomm Kaanapali SoC.
* icc-kaanapali
dt-bindings: interconnect: document the RPMh Network-On-Chip interconnect in Kaanapali SoC
interconnect: qcom: add Kaanapali interconnect provider driver
dt-bindings: interconnect: qcom-bwmon: Document Kaanapali BWMONs
Link: https://lore.kernel.org/r/20251031-knp-interconnect-v4-0-568bba2cb3e5@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Document the Kaanapali BWMONs, which have one instance per
cluster of BWMONv4.
Signed-off-by: Amir Vajid <amir.vajid@oss.qualcomm.com>
Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250924-knp-bwmon-v1-1-56a9cdda7d72@oss.qualcomm.com
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Add compatible string for SM8750 video clock controller and the bindings
for SM8750 Qualcomm SoC.
Signed-off-by: Taniya Das <taniya.das@oss.qualcomm.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20251118-sm8750-videocc-v2-v4-4-049882a70c9f@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Remove unused devm_free_percpu().
By the way, it was never used in the drivers/ from day 1.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251111145046.997309-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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Make the different debounce timers configurable from the devicetree.
Depending on the board design, these have to be set different than the
default register values.
Signed-off-by: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251117202215.1936139-1-martijn.de.gouw@prodrive-technologies.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add document for mt8189 board with nau8825.
Signed-off-by: Cyril Chao <Cyril.Chao@mediatek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251031073216.8662-10-Cyril.Chao@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add mt8189 audio afe document.
Signed-off-by: Cyril Chao <Cyril.Chao@mediatek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251031073216.8662-8-Cyril.Chao@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add a device tree binding for the Toshiba TC9563 PCIe switch, which
provides an Ethernet MAC integrated to the 3rd downstream port and
two downstream PCIe ports.
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20251101-tc9563-v9-1-de3429f7787a@oss.qualcomm.com
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Enhance visibility into dm-verity Forward Error Correction (FEC)
activity. While FEC can correct on-disk corruptions, the number of
successful correction events is not readily exposed through a standard
interface.
This change integrates FEC statistics into the verity target's
.status handler for STATUSTYPE_INFO. The info output now
includes count of corrected block by FEC.
The counter is a per-device instance atomic64_t, maintained within
the struct dm_verity_fec, tracking blocks successfully repaired by FEC
on this specific device instance since it was created.
This approach aligns with the standard Device Mapper mechanism for
targets to report runtime information, as used by other targets like
dm-integrity.
This patch also updates Documentation/admin-guide/device-mapper/verity.rst
to reflect the new status information.
Tested:
Induced single-bit errors on a block device protected by dm-verity
with FEC on android phone. Confirmed 'dmctl status <device>' on Android
reports an incrementing 'fec_corrected_blocks' count after the
corrupted blocks were accessed.
Signed-off-by: Shubhankar Mishra <shubhankarm@google.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
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Biju <biju.das.au@gmail.com> says:
This patch series aims to add Renesas RZ/G3E USB3.0 PHY driver support.
This module is connected between USB3 Host and PHY module. The main
functions of this module are:
1) Reset control
2) Control of PHY input pins
3) Monitoring of PHY output pins
Biju Das (2):
dt-bindings: phy: renesas: Document Renesas RZ/G3E USB3.0 PHY
phy: renesas: Add Renesas RZ/G3E USB3.0 PHY driver
Link: https://patch.msgid.link/20251029084037.108610-1-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Document Renesas RZ/G3E USB3.0 PHY. This IP is connected between
USB3HOST and PHY module. The main functions of the module are
as follows:
- Reset control
- Control of PHY input pins
- Monitoring of PHY output pins
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20251029084037.108610-2-biju.das.jz@bp.renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
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Document Adreno X2-85 GMU found in Glymur chipsets in the
dt-binding specification. It is very similar to Adreno 840
GMU with the additional requirement of RSCC HUB clock.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/689032/
Message-ID: <20251118-kaana-gpu-support-v4-21-86eeb8e93fb6@oss.qualcomm.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
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Document Adreno 840 GMU in the dt-binding specification.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/689031/
Message-ID: <20251118-kaana-gpu-support-v4-20-86eeb8e93fb6@oss.qualcomm.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
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Update the devicetree bindings to document the GPU SMMUs present in
Kaanapali and Glymur chipsets.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/689028/
Message-ID: <20251118-kaana-gpu-support-v4-19-86eeb8e93fb6@oss.qualcomm.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
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"Command Read/Write" section has two DataByte* subsections describing
command bytes format. Add markup to these subsection heading texts.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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In "Packet Format" section, only "StickPointer data byte" subsection
heading is shown as such in htmldocs output; "Touchpad data byte" one
is in normal paragraph on the other hand.
Properly format the headings to be consistent.
Fixes: 2562756dde55 ("HID: add Alps I2C HID Touchpad-Stick support")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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TH1520 SoC is divided into several subsystems, most of them have
distinct reset controllers. Let's document reset controllers other than
the one for VO subsystem and IDs for their reset signals.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Drew Fustini <fustini@kernel.org>
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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The Renesas USB PHY hardware block needs to have the PWRRDY bit in the
system controller set before applying any other settings. The PWRRDY bit
must be controlled during power-on, power-off, and system suspend/resume
sequences as follows:
- during power-on/resume, it must be set to zero before enabling clocks and
modules
- during power-off/suspend, it must be set to one after disabling clocks
and modules
Add the renesas,sysc-pwrrdy device tree property, which allows the
reset-rzg2l-usbphy-ctrl driver to parse, map, and control the system
controller PWRRDY bit at the appropriate time. Along with it add a new
compatible for the RZ/G3S SoC.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Add device tree binding documentation and header file for the ESWIN
eic7700 reset controller module.
Signed-off-by: Yifeng Huang <huangyifeng@eswincomputing.com>
Signed-off-by: Xuyang Dong <dongxuyang@eswincomputing.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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LAN969x also uses the Microchip reset driver, it reuses the LAN966x
support so use a fallback compatible.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Now that we have tools/lib/python for our Python modules, turn them into
proper packages with a single namespace so that everything can just use
tools/lib/python in sys.path. No functional change.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251110220430.726665-3-corbet@lwn.net>
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"scripts/lib" was always a bit of an awkward place for Python modules. We
already have tools/lib; create a tools/lib/python, move the libraries
there, and update the users accordingly.
While at it, move the contents of tools/docs/lib. Rather than make another
directory, just put these documentation-oriented modules under "kdoc".
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251110220430.726665-2-corbet@lwn.net>
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Move the kernel build options abbreviations to the .txt file so that
they are together instead of one having to go hunt them in the .rst
file.
Tweak the formatting so that the inclusion of kernel-parameters.txt
still keeps the whole thing somewhat presentable in the html output too.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251112114641.8230-1-bp@kernel.org>
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Replace "vantage" with "advantage" in the description of userspace API
cross-references.
Signed-off-by: Ankit Khushwaha <ankitkhushwaha.linux@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251115114233.32239-1-ankitkhushwaha.linux@gmail.com>
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description
Fixes a typo in the retbleed= parameter description, changing
"migitation" to "mitigation".
Fixes: 7fbf47c7ce50 ("x86/bugs: Add AMD retbleed= boot parameter")
Signed-off-by: Xie Yuanbin <qq570070308@gmail.com>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251116145302.3681-1-qq570070308@gmail.com>
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Common boolean properties need to be only allowed in the binding
(":true"), because their type is already defined by core DT schema.
Simplify dma-coherent property to match common syntax.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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pic64gx GPIO is compatible with mpfs-gpio controller, add it with a
fallback.
Signed-off-by: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20251117-grumbly-oversized-2215fe887181@spud
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Merge series from Cezary Rojewski <cezary.rojewski@intel.com>
From AudioDSP perspective, only gateway-related modules e.g.: Copier:
Small set of changes providing new feature which the driver is already
utilizing on the market - for its Long-Term-Support (LTS) devices.
The goal is to cover systems which shipped with invalid Non HDAudio Link
Table (NHLT) - not just the descriptors (headers), but cases where the
hardware configuration is invalid too. The table is part of the ACPI
tree and forcing BIOS updates is not a feasible solution. With the
override, the topology file can carry the hardware configuration
instead.
From AudioDSP perspective, only gateway-related modules e.g.: Copier
care about the procedure. To ensure correct order of operations when
initializing such modules, the overrides take precedence over what's
currently there in the NHLT.
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Move the WMI core code into a separate directory to prepare for
future additions to the WMI driver. Also update the description
of the Kconfig entry to better fit with the other subsystem
Kconfig entries.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20251111131125.3379-5-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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With the existence of the asus-armoury module the attributes no longer
need to live under the /sys/devices/platform/asus-nb-wmi/ path.
Deprecate all those that were implemented in asus-bioscfg with the goal
of removing them fully in the next LTS cycle.
Signed-off-by: Denis Benato <denis.benato@linux.dev>
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20251102215319.3126879-8-denis.benato@linux.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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And expand it to encompass all pressure pads.
Definition: "pressure pad" as used here as includes all touchpads that
use physical pressure to convert to click, without physical hinges. Also
called haptic touchpads in general parlance, Synaptics calls them
ForcePads.
Most (all?) pressure pads are currently advertised as
INPUT_PROP_BUTTONPAD. The suggestion to identify them as pressure pads
by defining the resolution on ABS_MT_PRESSURE has been in the docs since
commit 20ccc8dd38a3 ("Documentation: input: define
ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams") but few devices
provide this information.
In userspace it's thus impossible to determine whether a device is a
true pressure pad (pressure equals pressure) or a normal clickpad with
(pressure equals finger size).
Commit 7075ae4ac9db ("Input: add INPUT_PROP_HAPTIC_TOUCHPAD") introduces
INPUT_PROP_HAPTIC_TOUCHPAD but restricted it to those touchpads that
have support for userspace-controlled effects. Let's expand and rename
that definition to include all pressure pad touchpads since those that
do support FF effects can be identified by the presence of the
FF_HAPTIC bit.
This means:
- clickpad: INPUT_PROP_BUTTONPAD
- pressurepad: INPUT_PROP_BUTTONPAD + INPUT_PROP_PRESSUREPAD
- pressurepad with configurable haptics:
INPUT_PROP_BUTTONPAD + INPUT_PROP_PRESSUREPAD + FF_HAPTIC
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://patch.msgid.link/20251106114534.GA405512@tassie
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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no_slb_preload cmdline can come useful in quickly disabling and/or
testing the performance impact of userspace slb preloads. Recently there
was a slb multi-hit issue due to slb preload cache which was very
difficult to triage. This cmdline option allows to quickly disable
preloads and verify if the issue exists in preload cache or somewhere
else. This can also be a useful option to see the effect of slb preloads
for any application workload e.g. number of slb faults with or w/o slb
preloads.
with slb_preload:
slb_faults (minimal initrd boot): 15
slb_faults (full systemd boot): 300
with no_slb_preload:
slb_faults (minimal initrd boot): 33
slb_faults (full systemd boot): 138180
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/de484b55c45d831bc2db63945f455153c89a9a65.1761834163.git.ritesh.list@gmail.com
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Not used anymore.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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As the ethernet controller of SG2044 and SG2042 only supports
RGMII phy. Add phy-mode property to restrict the value.
Also, since SG2042 has internal rx delay in its mac, make
only "rgmii-txid" and "rgmii-id" valid for phy-mode.
Fixes: e281c48a7336 ("dt-bindings: net: sophgo,sg2044-dwmac: Add support for Sophgo SG2042 dwmac")
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20251114003805.494387-2-inochiama@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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net.ipv4.tcp_comp_sack_slack_ns current default value is too high.
When a flow has many drops (1 % or more), and small RTT, adding 100 usec
before sending SACK stalls the sender relying on getting SACK
fast enough to keep the pipe busy.
Decrease the default to 10 usec.
This is orthogonal to Congestion Control heuristics to determine
if drops are caused by congestion or not.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Neal Cardwell <ncardwell@google.com>
Link: https://patch.msgid.link/20251114135141.3810964-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The pic64gx use the same IP than mpfs, therefore add compatibility with
mpfs as fallback.
Signed-off-by: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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Currently it is not possible to disable streaming mode via ptrace on SME
only systems, the interface for doing this is to write via NT_ARM_SVE but
such writes will be rejected on a system without SVE support. Enable this
functionality by allowing userspace to write SVE_PT_REGS_FPSIMD format data
via NT_ARM_SVE with the vector length set to 0 on SME only systems. Such
writes currently error since we require that a vector length is specified
which should minimise the risk that existing software is relying on current
behaviour.
Reads are not supported since I am not aware of any use case for this and
there is some risk that an existing userspace application may be confused if
it reads NT_ARM_SVE on a system without SVE. Existing kernels will return
FPSIMD formatted register state from NT_ARM_SVE if full SVE state is not
stored, for example if the task has not used SVE. Returning a vector length
of 0 would create a risk that software would try to do things like allocate
space for register state with zero sizes, while returning a vector length of
128 bits would look like SVE is supported. It seems safer to just not make
the changes to add read support.
It remains possible for userspace to detect a SME only system via the ptrace
interface only since reads of NT_ARM_SSVE and NT_ARM_ZA will succeed while
reads of NT_ARM_SVE will fail. Read/write access to the FPSIMD registers in
non-streaming mode is available via REGSET_FPR.
sve_set_common() already avoids allocating SVE storage when doing a FPSIMD
formatted write and allocating SME storage when doing a NT_ARM_SVE write so
we change the function to validate the new case and skip setting a vector
length for it.
The aim is to make a minimally invasive change, no operation that would
previously have succeeded will be affected, and we use a previously
defined interface in new circumstances rather than define completely new
ABI.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: David Spickett <david.spickett@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Some of the datasheet links contained .pdf suffix which resulted in 404.
This patch updates the links to the correct URLs on Renesas website.
Signed-off-by: Igor Reznichenko <igor@reznichenko.net>
Link: https://lore.kernel.org/r/20251115182908.1357793-1-igor@reznichenko.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Convert APM X-Gene Storm DMA binding to DT schema format. It's a
straight-forward conversion.
Link: https://patch.msgid.link/20251013213037.684981-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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The binding is already defined in mfd/stericsson,db8500-prcmu.yaml and none
of 'the tripN.*' properties appear to be in use.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20251030195234.439141-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Convert the brcm,sr-thermal binding to DT schema format. It's a
straight-forward conversion. "polling-delay", "thermal-sensors", and
"temperature" all apply to the thermal zones, not the sensor node.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251013215810.783006-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Convert amazon,al-thermal binding to DT schema format. It's a
straight-forward conversion.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251013215820.783272-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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For better readability, it is recommended to insert a newline before the
'status' property. Adjust the examples accordingly.
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251023-docs-dt-newline-v1-1-1bf5e0040c0b@ixit.cz
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Generally at most 1 blank line is the standard style for DT schema
files. Remove the few cases with more than 1 so that the yamllint check
for this can be enabled.
Acked-by: Lee Jones <lee@kernel.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> # remoteproc
Acked-by: Georgi Djakov <djakov@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org> # for allwinner,sun4i-a10-pwm.yaml
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> # mtd
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org> # For PCI controller bindings
Link: https://patch.msgid.link/20251023143957.2899600-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Update Krzysztof Kozlowski's email address to kernel.org account to stay
reachable.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20251021095354.86455-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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