summaryrefslogtreecommitdiff
path: root/Documentation
AgeCommit message (Collapse)Author
2025-11-06dt-bindings: net: dsa: lantiq,gswip: add support for MII delay propertiesDaniel Golle
Add support for standard tx-internal-delay-ps and rx-internal-delay-ps properties on port nodes to allow fine-tuning of RGMII clock delays. The GSWIP switch hardware supports delay values in 500 picosecond increments from 0 to 3500 picoseconds, with a post-reset default of 2000 picoseconds for both TX and RX delays. The driver currently sets the delay to 0 in case the PHY is setup to carry out the delay by the corresponding interface modes ("rgmii-id", "rgmii-rxid", "rgmii-txid"). This corresponds to the driver changes that allow adjusting MII delays using Device Tree properties instead of relying solely on the PHY interface mode. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/9e007d4f85c2c6d69e0b91f3663d99e0f6fc8eac.1762170107.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-06dt-bindings: net: dsa: lantiq,gswip: add MaxLinear RMII refclk output propertyDaniel Golle
Add support for the maxlinear,rmii-refclk-out boolean property on port nodes to configure the RMII reference clock to be an output rather than an input. This property is only applicable for ports in RMII mode and allows the switch to provide the reference clock for RMII-connected PHYs instead of requiring an external clock source. This corresponds to the driver changes that read this Device Tree property to configure the RMII clock direction. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/9813bb916ecce9bae366e6c50c081014fe5371ea.1762170107.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-06dt-bindings: rtc: Add support for ATCRTC100 RTCCL Wang
Document Device Tree bindings for the Andes ATCRTC100 Real-Time Clock. Signed-off-by: CL Wang <cl634@andestech.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20250915031439.2680364-2-cl634@andestech.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-11-06i40e: support generic devlink param "max_mac_per_vf"Mohammad Heib
Currently the i40e driver enforces its own internally calculated per-VF MAC filter limit, derived from the number of allocated VFs and available hardware resources. This limit is not configurable by the administrator, which makes it difficult to control how many MAC addresses each VF may use. This patch adds support for the new generic devlink runtime parameter "max_mac_per_vf" which provides administrators with a way to cap the number of MAC addresses a VF can use: - When the parameter is set to 0 (default), the driver continues to use its internally calculated limit. - When set to a non-zero value, the driver applies this value as a strict cap for VFs, overriding the internal calculation. Important notes: - The configured value is a theoretical maximum. Hardware limits may still prevent additional MAC addresses from being added, even if the parameter allows it. - Since MAC filters are a shared hardware resource across all VFs, setting a high value may cause resource contention and starve other VFs. - This change gives administrators predictable and flexible control over VF resource allocation, while still respecting hardware limitations. - Previous discussion about this change: https://lore.kernel.org/netdev/20250805134042.2604897-2-dhill@redhat.com https://lore.kernel.org/netdev/20250823094952.182181-1-mheib@redhat.com Signed-off-by: Mohammad Heib <mheib@redhat.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-11-06devlink: Add new "max_mac_per_vf" generic device paramMohammad Heib
Add a new device generic parameter to controls the maximum number of MAC filters allowed per VF. For example, to limit a VF to 3 MAC addresses: $ devlink dev param set pci/0000:3b:00.0 name max_mac_per_vf \ value 3 \ cmode runtime Signed-off-by: Mohammad Heib <mheib@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2025-11-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.18-rc5). Conflicts: drivers/net/wireless/ath/ath12k/mac.c 9222582ec524 ("Revert "wifi: ath12k: Fix missing station power save configuration"") 6917e268c433 ("wifi: ath12k: Defer vdev bring-up until CSA finalize to avoid stale beacon") https://lore.kernel.org/11cece9f7e36c12efd732baa5718239b1bf8c950.camel@sipsolutions.net Adjacent changes: drivers/net/ethernet/intel/Kconfig b1d16f7c0063 ("libie: depend on DEBUG_FS when building LIBIE_FWLOG") 93f53db9f9dc ("ice: switch to Page Pool") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-06ASoC: Merge up fixesMark Brown
There is some overlap with the cs4271 driver.
2025-11-06spi: dt-bindings: fsl-qspi: add optional resetsAlex Elder
Allow two resets to be defined to support the SpacemiT K1 SoC QSPI IP. Move the allOf block down, below the required section. Reviewed-by: Frank Li <Frank.Li@nxp.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Alex Elder <elder@riscstar.com> Link: https://patch.msgid.link/20251027133008.360237-3-elder@riscstar.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-06spi: dt-bindings: fsl-qspi: support SpacemiT K1Alex Elder
Add the SpacemiT K1 SoC QSPI IP to the list of supported hardware. This is the first non-Freescale device represented here. It has a nearly identidal register set, and this binding correctly describes the hardware. Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Alex Elder <elder@riscstar.com> Link: https://patch.msgid.link/20251027133008.360237-2-elder@riscstar.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-06dt-bindings: mfd: tps65910: Make interrupt properties optionalShree Ramamoorthy
Mark 'interrupts', 'interrupt-controller', and 'interrupt-cells' as optional in the binding schema. The 'interrupts' property should not be required for the TPS65910 PMIC. On the AM335x-ICEV2 SoC, there is no hardware connection from the PMIC_INT pin to the SoC. Without the 'interrupts' property defined, the PMIC cannot forward interrupts. Signed-off-by: Shree Ramamoorthy <s-ramamoorthy@ti.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20251021182716.292652-1-s-ramamoorthy@ti.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-11-06dt-bindings: mfd: dlg,da9063: Allow wakeup-source propertyFrank Li
Allow wakeup-source property to below CHECK_DTBS warnings: arch/arm/boot/dts/nxp/imx/imx6dl-emcon-avari.dtb: pmic@58 (dlg,da9063): onkey: 'wakeup-source' does not match any of the regexes: 'pinctrl-[0-9]+' Signed-off-by: Frank Li <Frank.Li@nxp.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20251014184114.2353199-1-Frank.Li@nxp.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-11-06dt-bindings: mfd: Add Renesas R2A11302FT PMICWolfram Sang
This PMIC is referenced in upstream DTs for the Renesas Lager and Koelsch boards. Sadly, there is no documentation available. This minimal binding description states the facts that we do know. Fixes: arch/arm/boot/dts/renesas/r8a7790-lager.dtb: /soc/spi@e6e10000/pmic@0: failed to match any schema with compatible: ['renesas,r2a11302ft'] arch/arm/boot/dts/renesas/r8a7791-koelsch.dtb: /soc/spi@e6e20000/pmic@0: failed to match any schema with compatible: ['renesas,r2a11302ft'] Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20251010094734.10487-2-wsa+renesas@sang-engineering.com Signed-off-by: Lee Jones <lee@kernel.org>
2025-11-06mfd: wl1273-core: Remove the headerDr. David Alan Gilbert
The wl1273 FM radio is on Arnd's unused driver list: https://lore.kernel.org/lkml/a15bb180-401d-49ad-a212-0c81d613fbc8@app.fastmail.com/ Other patches have removed the core, the ASoC code and the Radio code. With all those in, remove the header. Also, tidy the ref in the docs. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee@kernel.org>
2025-11-06dt-bindings: max77705: Add interrupt-controller propertyDzmitry Sankouski
Add interrupt-controller property, because max77705 has dedicated interrupt source register to determine which sub device triggered an interrupt. Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Lee Jones <lee@kernel.org>
2025-11-06dt-bindings: mfd: sy7636a: Add missing GPIO pins and supplyAndreas Kemnade
To be able to fully describe how the SY7636A is connected to the system, add properties for the EN and VCOM_EN pins. To squeeze out every bit of unused current, in many devices it is possible to power off the complete chip. Add an input regulator to allow that. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Andreas Kemnade <akemnade@kernel.org> Signed-off-by: Lee Jones <lee@kernel.org>
2025-11-06EDAC: Remove the legacy EDAC sysfs interfaceAvadhut Naik
Commit 199747106934 ("edac: add a new per-dimm API and make the old per-virtual-rank API obsolete") introduced a new per-DIMM sysfs interface for EDAC making the old per-virtual-rank sysfs interface obsolete. Since this new sysfs interface was introduced more than a decade ago, remove the obsolete legacy interface. Signed-off-by: Avadhut Naik <avadhut.naik@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/20251106015727.1987246-1-avadhut.naik@amd.com
2025-11-06dt-bindings: riscv: spacemit: add MusePi Pro boardTroy Mitchell
Document the compatible string for the MusePi Pro [1]. It is a 1.8-inch single board computer based on the SpacemiT K1/M1 RISC-V SoC [2]. Here's a refined list of its core features: - SoC: SpacemiT M1/K1, 8-core 64-bit RISC-V. - Memory: LPDDR4X @ 2400MT/s, available in 8GB & 16GB options. - Storage: Onboard eMMC 5.1 (64GB/128GB options), M.2 M-Key for NVMe SSD (2230 size), and a microSD slot (UHS-II) for expansion. - Display: HDMI 1.4 (1080P@60Hz) and 2-lane MIPI DSI FPC (1080P@60Hz). - Connectivity: Onboard Wi-Fi 6 & Bluetooth 5.2, single Gigabit Ethernet port (RJ45). - USB: 4x USB 3.0 Type-A (host) and 1x USB 2.0 Type-C (device/OTG). - Expansion: Full-size miniPCIe slot and a second M.2 M-Key (2230). - GPIO: Standard 40-pin GPIO interface. - MIPI: 1x 4-lane MIPI CSI FPC and 2x MIPI DSI FPC interfaces. - Clock: Onboard RTC with battery support. Link: https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf [1] Link: https://www.spacemit.com/en/key-stone-k1 [2] Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com> Link: https://lore.kernel.org/r/20251023-k1-musepi-pro-dts-v4-1-01836303e10f@linux.spacemit.com Signed-off-by: Yixun Lan <dlan@gentoo.org>
2025-11-06media: dt-bindings: Add qcom,msm8939-camssVincent Knecht
Add bindings for qcom,msm8939-camss in order to support the camera subsystem for MSM8939. Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org> [André: Make order of items the same as in 8916] Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: André Apitzsch <git@apitzsch.eu> Signed-off-by: Bryan O'Donoghue <bod@kernel.org> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06dt-bindings: media: Describe Qualcomm SM8650 CAMSS IPVladimir Zapolskiy
Add device tree bindings for Qualcomm SM8650 camera subsystem. Qualcomm SM8650 CAMSS IP contains the next subdevices: * 6 x CSIPHY, * 3 x CSID, 2 x CSID Lite, * 3 x IFE, 2 x IFE Lite. Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD Signed-off-by: Bryan O'Donoghue <bod@kernel.org> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06media: dt-bindings: qcom,x1e80100-camss: Fix typo in CSIPHY supply descriptionKrzysztof Kozlowski
Correct description of the CSIPHY 1.2 V supply ("vdd-csiphy-1p2-supply"), because it supplies 1.2 V, confirmed with DTS on the mailing lists. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Signed-off-by: Bryan O'Donoghue <bod@kernel.org> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06dt-bindings: arm: document the static TPDM compatibleJie Gan
The static TPDM device is intended for sources that do not require MMIO mapping. Its compatible string should be documented clearly, along with an example illustrating how to define a static TPDM node in the DT. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251028-add_static_tpdm_support-v4-1-84e21b98e727@oss.qualcomm.com Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
2025-11-06Add support MT6316/6363/MT6373 PMICs regulatorsMark Brown
Merge series from AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>: This series adds support for three new MediaTek PMICs: MT6316, MT6363 and MT6373 and their variants - used in board designs featuring the MediaTek MT8196 Chromebook SoC, or the MT6991 Dimensity 9400 Smartphone SoC. In particular, MT6316 is a regulator, but the MT6363 and MT6373 PMICs are multi-function devices, as they have and expose multiple sub-devices; moreover, some of those also contain an interrupt controller, managing internal IPs interrupts: for those, a chained interrupt handler is registered, which parent is the SPMI controller itself. This series adds support for all of the MT6316 regulator variants and for MT6363, MT6373 SPMI PMICs and their interrupt controller.
2025-11-06ASoC: qcom: q6dsp: fixes and updatesMark Brown
Merge series from Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>: This patchset has 4 fixes and some enhancements to the Elite DSP driver support. Fixes includes - setting correct flags for expected behaviour of appl_ptr - fix closing of copp instances - fix buffer alignment. - fix state checks before closing asm stream Enhancements include: - adding q6asm_get_hw_pointer and ack callback support - simplify code via __free(kfree) mechanism. - use spinlock guards - few cleanups discovered during doing above 2. There is another set of updates comming soon, which will add support for early memory mapping and few more modules support in audioreach.
2025-11-06dt-bindings: crypto: qcom-qce: Document the kaanapli crypto engineGaurav Kashyap
Document the crypto engine on the kaanapali platform. Signed-off-by: Gaurav Kashyap <gaurav.kashyap@oss.qualcomm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-06dt-bindings: crypto: qcom,prng: Document kaanapali RNGGaurav Kashyap
Document kaanapali compatible for the True Random Number Generator. Signed-off-by: Gaurav Kashyap <gaurav.kashyap@oss.qualcomm.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-11-05lib/crypto: sha3: Add SHA-3 supportDavid Howells
Add SHA-3 support to lib/crypto/. All six algorithms in the SHA-3 family are supported: four digests (SHA3-224, SHA3-256, SHA3-384, and SHA3-512) and two extendable-output functions (SHAKE128 and SHAKE256). The SHAKE algorithms will be required for ML-DSA. [EB: simplified the API to use fewer types and functions, fixed bug that sometimes caused incorrect SHAKE output, cleaned up the documentation, dropped an ad-hoc test that was inconsistent with the rest of lib/crypto/, and many other cleanups] Signed-off-by: David Howells <dhowells@redhat.com> Co-developed-by: Eric Biggers <ebiggers@kernel.org> Tested-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20251026055032.1413733-4-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
2025-11-05dt-bindings: ethernet: eswin: fix yaml schema issuesShangjuan Wei
eswin,hsp-sp-csr attribute is one phandle with multiple arguments, so the syntax should be in the form of: items: - items: - description: ... - description: ... - description: ... - description: ... To align with the description of the 'eswin-sp-csr' attribute in the mmc,usb modules, the description of the 'eswin,hsp-sp-csr' attribute has been modified. Fixes: 888bd0eca93c ("dt-bindings: ethernet: eswin: Document for EIC7700 SoC") Reported-by: Rob Herring (Arm) <robh@kernel.org> Closes: https://lore.kernel.org/all/176096011380.22917.1988679321096076522.robh@kernel.org/ Signed-off-by: Shangjuan Wei <weishangjuan@eswincomputing.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20251104073305.299-1-weishangjuan@eswincomputing.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-05doc: Update for SRCU-fast definitions and initializationPaul E. McKenney
This commit documents the DEFINE_SRCU_FAST(), DEFINE_STATIC_SRCU_FAST(), and init_srcu_struct_fast() API members. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: <bpf@vger.kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
2025-11-05docs: ABI: sysfs-module: update modules taint flagsRandy Dunlap
Add missing taint flags for loadable modules, as pointed out by Petr Pavlu [1]. [1] https://lore.kernel.org/all/c58152f1-0fbe-4f50-bb61-e2f4c0584025@suse.com/ Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Petr Pavlu <petr.pavlu@suse.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251102060458.517911-1-rdunlap@infradead.org>
2025-11-05Documentation: uacce: Add explicit titleBagas Sanjaya
Uacce docs' sections are listed in misc-devices toctree instead due to lack of explicit docs title. Add it to clean up the toctree. Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251103093817.52764-2-bagasdotme@gmail.com>
2025-11-05Documentation: pldmfw: Demote library overview sectionBagas Sanjaya
pldmfw library overview section is formatted as title heading (the second title of index.rst), making it listed in driver-api toctree. Demote the section. Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251103030228.23851-1-bagasdotme@gmail.com>
2025-11-05doc-guide: kernel-doc: add %CONST examplesRandy Dunlap
Add examples of using '%' for formatting constant values to facilitate more usage of "%CONST" in kernel-doc. Suggested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251104050930.720711-1-rdunlap@infradead.org>
2025-11-05docs: Makefile: Sort Documentation targets case-insensitively in make helpBhanu Seshu Kumar Valluri
Avoid case-sensitive sorting when listing Documentation targets in make help. Previously, targets like PCI and RCU appeared ahead of others due to uppercase names. Normalize casing during _SPHINXDIRS generation to ensure consistent and intuitive ordering. Fixes: 965fc39f7393 ("Documentation: sort _SPHINXDIRS for 'make help'") Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Bhanu Seshu Kumar Valluri <bhanuseshukumar@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251104061723.16629-1-bhanuseshukumar@gmail.com>
2025-11-05docs: w1: fix w1-netlink invalid URLRandy Dunlap
The URL in w1-netlink.rst for an example userspace application has changed. The former URL is no longer valid. Update it to the github URL. Fixes: e4e056aa3518 ("w1: documentation update") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251104194403.945611-1-rdunlap@infradead.org>
2025-11-05Documentation/rtla: Include defaults for tracer optionsTomas Glozar
Commit 0122938a7ab4 ("rtla: Always set all tracer options") changed the behavior of RTLA to always set all osnoise and timerlat tracer options to default values taken from the tracers whenever an RTLA measurement is started. The change was done to make RTLA results consistent on subsequent runs of the same command. Include the default values for tracer options also in documentation where appropriate. Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-10-tglozar@redhat.com>
2025-11-05Documentation/trace: Specify exact priority for timerlatTomas Glozar
The timerlat tracer documentation mentions that threads are created with real-time priority, but does not mention which priority and scheduling class is used. Add the information so that users do not have to look it up in trace_osnoise.c. Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-9-tglozar@redhat.com>
2025-11-05Documentation/rtla: Mention default cgroup stateTomas Glozar
The RTLA option -C/--cgroup is used to set a cgroup for workload threads. This is either a specific cgroup, if passed an argument, or rtla's cgroup, if no argument is given. Expand the documentation of the -C option to also include the information about the cgroup settings when the option is not specified. Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-8-tglozar@redhat.com>
2025-11-05Documentation/rtla: Mention default priorityTomas Glozar
RTLA allows the priority of workload threads to be set using the -P option. This is covered in docs, but the default state for RTLA's own user workload (implemented in timerlat_u.c) is not mentioned. Add mention of the default user workload priority as well as a reference to osnoise and timerlat tracers for kernel workload priority. Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-7-tglozar@redhat.com>
2025-11-05Documentation/rtla: Correct tracer name for common optionsTomas Glozar
Several options in common_options.rst say "osnoise tracer" for both osnoise and timerlat. Use |tool| variable so that the correct tool name is used. Fixes: b1be48307de4 ("rtla: Add rtla osnoise top documentation") Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-6-tglozar@redhat.com>
2025-11-05Documentation/rtla: Fix typo in common_timerlat_options.txtTomas Glozar
Fix spelling error "equilavent" in place of "equivalent". Fixes: 173a3b014827 ("rtla/timerlat: Add the automatic trace option") Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-5-tglozar@redhat.com>
2025-11-05Documentation/rtla: Fix typo in rtla-timerlat-top.rstTomas Glozar
Fix "seem" in place of intended "seen" in rtla-timerlat-top documentation. Fixes: df337d014b57 ("rtla: Add rtla timerlat top documentation") Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-4-tglozar@redhat.com>
2025-11-05Documentation/rtla: Fix typo in common_timerlat_options.txtTomas Glozar
Fix "awakes" being used in place of "awakened" in --users-threads option documentation. Fixes: 612738321774 ("Documentation: Add tools/rtla timerlat -u option documentation") Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-3-tglozar@redhat.com>
2025-11-05Documentation/rtla: Fix typo in common_options.txtTomas Glozar
Fix "unlike" being spelled "nlike" in --on-threshold documentation. Fixes: 70165c78e31d ("Documentation/rtla: Add actions feature") Signed-off-by: Tomas Glozar <tglozar@redhat.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251010083338.478961-2-tglozar@redhat.com>
2025-11-05dt-bindings: regulator: Document MediaTek MT6363 PMIC RegulatorsAngeloGioacchino Del Regno
Add bindings for the regulators found in the MediaTek MT6363 PMIC, usually found in board designs using the MT6991 Dimensity 9400 and on MT8196 Kompanio SoC for Chromebooks, along with the MT6316 and MT6373 PMICs. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patch.msgid.link/20251027110527.21002-4-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-05dt-bindings: regulator: Document MediaTek MT6316 PMIC RegulatorsAngeloGioacchino Del Regno
Add bindings for the regulators found in the MediaTek MT6316 PMIC, usually found in board designs using the MT6991 Dimensity 9400 and on MT8196 Kompanio SoC for Chromebooks. This chip is fully controlled by SPMI and has multiple variants providing different phase configurations. Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20251027110527.21002-2-angelogioacchino.delregno@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-05dt-bindings: arm: mediatek: add BPI-R4 Pro boardFrank Wunderlich
Add compatibles for Bananapi R4 Pro boards. Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
2025-11-05dt-bindings: soc: bcm: Add bcm2712 compatibleStanimir Varbanov
Add bcm2712-pm compatible and update the bindings to satisfy it's requirements. The PM hardware block inside bcm2712 lacks the "asb" and "rpivid_asb" register ranges and also does not have clocks, update the bindings accordingly. Signed-off-by: Stanimir Varbanov <svarbanov@suse.de> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2025-11-05iomap: add caller-provided callbacks for read and readaheadJoanne Koong
Add caller-provided callbacks for read and readahead so that it can be used generically, especially by filesystems that are not block-based. In particular, this: * Modifies the read and readahead interface to take in a struct iomap_read_folio_ctx that is publicly defined as: struct iomap_read_folio_ctx { const struct iomap_read_ops *ops; struct folio *cur_folio; struct readahead_control *rac; void *read_ctx; }; where struct iomap_read_ops is defined as: struct iomap_read_ops { int (*read_folio_range)(const struct iomap_iter *iter, struct iomap_read_folio_ctx *ctx, size_t len); void (*read_submit)(struct iomap_read_folio_ctx *ctx); }; read_folio_range() reads in the folio range and is required by the caller to provide. read_submit() is optional and is used for submitting any pending read requests. * Modifies existing filesystems that use iomap for read and readahead to use the new API, through the new statically inlined helpers iomap_bio_read_folio() and iomap_bio_readahead(). There is no change in functionality for those filesystems. Signed-off-by: Joanne Koong <joannelkoong@gmail.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-05ASoC: dt-bindings: ti,pcm1862: convert to dtschemaRanganath V N
convert the Texas Instruments PCM186x Universal audio ADC bindings to DT schema. The PCM186x codec provides a single digital audio interface. Therefore this binding adds a reference to dai-common.yaml and defines '#sound-dai-cells = 0". Signed-off-by: Ranganath V N <vnranganath.20@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20251104-dtbs-v7-1-224aacb09671@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-11-05spi: tegra210-quad: Improve timeout handling underMark Brown
Merge series from Vishwaroop A <va@nvidia.com>: This patch series addresses timeout handling issues in the Tegra QSPI driver that occur under high system load conditions. We've observed that when CPUs are saturated (due to error injection, RAS firmware activity, or general CPU contention), QSPI interrupt handlers can be delayed, causing spurious transfer failures even though the hardware completed the operation successfully. These changes have been tested in production environments under various high load scenarios including RAS testing and CPU saturation workloads.
generated by cgit v1.2.3 (git 2.39.1) at 2026-09-19 21:21:47 +0000