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2025-10-30dt-bindings: i2c: qcom-cci: Document msm8953 compatibleLuca Weiss1-0/+2
Add the msm8953 CCI device string compatible. Signed-off-by: Luca Weiss <luca@lucaweiss.eu> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20251028-msm8953-cci-v2-1-b5f9f7135326@lucaweiss.eu
2025-10-30dt-bindings: soc: mediatek: pwrap: Add compatible for MT8189 SoCLouis-Alexis Eyraud1-0/+1
Add compatible string for the PWRAP block on MT8189 SoC, which is compatible with the one used on MT8195. Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
2025-10-30scsi: ufs: dt-bindings: qcom: Drop redundant "reg" constraintsKrzysztof Kozlowski1-3/+0
The "reg" in top-level has maxItems:2, thus repeating this in "if:then:" blocks is redundant. Similarly number of items cannot be less than 1. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20251027113107.75835-2-krzysztof.kozlowski@linaro.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-10-30Merge patch series "ufs: Add support for AMD Versal Gen2 UFS"Martin K. Petersen1-0/+61
Ajay Neeli <ajay.neeli@amd.com> says: This patch series adds support for the UFS driver on the AMD Versal Gen 2 SoC. It includes: - Device tree bindings and driver implementation. - Secure read support for the secure retrieval of UFS calibration values. The UFS host driver is based upon the Synopsis DesignWare (DWC) UFS architecture, utilizing the existing UFSHCD_DWC and UFSHCD_PLATFORM drivers. Link: https://patch.msgid.link/20251021113003.13650-1-ajay.neeli@amd.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-10-30scsi: ufs: dt-bindings: amd-versal2: Add UFS Host Controller for AMD Versal ↵Sai Krishna Potthuri1-0/+61
Gen 2 SoC Add devicetree document for UFS Host Controller on AMD Versal Gen 2 SoC. This includes clocks and clock-names as mandated by UFS common bindings. Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com> Co-developed-by: Ajay Neeli <ajay.neeli@amd.com> Signed-off-by: Ajay Neeli <ajay.neeli@amd.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Acked-by: Bart Van Assche <bvanassche@acm.org> Link: https://patch.msgid.link/20251021113003.13650-2-ajay.neeli@amd.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-10-30dt-bindings: net: enetc: add compatible string for ENETC with pseduo MACWei Fang1-0/+1
The ENETC with pseudo MAC is used to connect to the CPU port of the NETC switch. This ENETC has a different PCI device ID, so add a standard PCI device compatible string to it. Signed-off-by: Wei Fang <wei.fang@nxp.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20251029013900.407583-3-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-30dt-bindings: net: netc-blk-ctrl: add compatible string for i.MX94 platformsWei Fang1-0/+1
Add the compatible string "nxp,imx94-netc-blk-ctrl" for i.MX94 platforms. Signed-off-by: Wei Fang <wei.fang@nxp.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20251029013900.407583-2-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-30ipv6: icmp: Add RFC 5837 supportIdo Schimmel1-0/+17
Add the ability to append the incoming IP interface information to ICMPv6 error messages in accordance with RFC 5837 and RFC 4884. This is required for more meaningful traceroute results in unnumbered networks. The feature is disabled by default and controlled via a new sysctl ("net.ipv6.icmp.errors_extension_mask") which accepts a bitmask of ICMP extensions to append to ICMP error messages. Currently, only a single value is supported, but the interface and the implementation should be able to support more extensions, if needed. Clone the skb and copy the relevant data portions before modifying the skb as the caller of icmp6_send() still owns the skb after the function returns. This should be fine since by default ICMP error messages are rate limited to 1000 per second and no more than 1 per second per specific host. Trim or pad the packet to 128 bytes before appending the ICMP extension structure in order to be compatible with legacy applications that assume that the ICMP extension structure always starts at this offset (the minimum length specified by RFC 4884). Since commit 20e1954fe238 ("ipv6: RFC 4884 partial support for SIT/GRE tunnels") it is possible for icmp6_send() to be called with an skb that already contains ICMP extensions. This can happen when we receive an ICMPv4 message with extensions from a tunnel and translate it to an ICMPv6 message towards an IPv6 host in the overlay network. I could not find an RFC that supports this behavior, but it makes sense to not overwrite the original extensions that were appended to the packet. Therefore, avoid appending extensions if the length field in the provided ICMPv6 header is already filled. Export netdev_copy_name() using EXPORT_IPV6_MOD_GPL() to make it available to IPv6 when it is built as a module. Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20251027082232.232571-3-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-30ipv4: icmp: Add RFC 5837 supportIdo Schimmel1-0/+17
Add the ability to append the incoming IP interface information to ICMPv4 error messages in accordance with RFC 5837 and RFC 4884. This is required for more meaningful traceroute results in unnumbered networks. The feature is disabled by default and controlled via a new sysctl ("net.ipv4.icmp_errors_extension_mask") which accepts a bitmask of ICMP extensions to append to ICMP error messages. Currently, only a single value is supported, but the interface and the implementation should be able to support more extensions, if needed. Clone the skb and copy the relevant data portions before modifying the skb as the caller of __icmp_send() still owns the skb after the function returns. This should be fine since by default ICMP error messages are rate limited to 1000 per second and no more than 1 per second per specific host. Trim or pad the packet to 128 bytes before appending the ICMP extension structure in order to be compatible with legacy applications that assume that the ICMP extension structure always starts at this offset (the minimum length specified by RFC 4884). Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20251027082232.232571-2-idosch@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-30Documentation: netconsole: Remove obsolete contact peopleBagas Sanjaya1-3/+0
Breno Leitao has been listed in MAINTAINERS as netconsole maintainer since 7c938e438c56db ("MAINTAINERS: make Breno the netconsole maintainer"), but the documentation says otherwise that bug reports should be sent to original netconsole authors. Remove obsolate contact info. Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Link: https://patch.msgid.link/20251028132027.48102-1-bagasdotme@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-30Documentation: fix reference to PR_SPEC_L1D_FLUSHBrendan Jackman1-1/+1
PR_SET_L1D_FLUSH does not exist. Signed-off-by: Brendan Jackman <jackmanb@google.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251015-l1d-flush-doc-v1-2-f8cefea3f2f2@google.com>
2025-10-30Documentation: clarify PR_SPEC_L1D_FLUSHBrendan Jackman1-1/+5
For PR_SPEC_STORE_BYPASS and PR_SPEC_INDIRECT_BRANCH, PR_SPEC_DISABLE means "disable the speculation bug" i.e. "enable the mitigation". For PR_SPEC_L1D_FLUSH, PR_SPEC_DISABLE means "disable the mitigation". This is not obvious, so document it. Signed-off-by: Brendan Jackman <jackmanb@google.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251015-l1d-flush-doc-v1-1-f8cefea3f2f2@google.com>
2025-10-30Documentation: process: Also mention Sasha Levin as stable tree maintainerBagas Sanjaya1-2/+4
Sasha has also maintaining stable branch in conjunction with Greg since cb5d21946d2a2f ("MAINTAINERS: Add Sasha as a stable branch maintainer"). Mention him in 2.Process.rst. Cc: stable@vger.kernel.org Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251022034336.22839-1-bagasdotme@gmail.com>
2025-10-30docs: replace broken links in ramfs-rootfs-initramfs docsNadav Tasher1-6/+6
http://www.uwsg.iu.edu/ doesn't seem to exist anymore. I managed to find backups on archive.org, which helped me find the right links on https://lore.kernel.org/. http://freecode.com/projects/afio was also down, so I figured it could be replaced with https://linux.die.net/man/1/afio. Replace broken links to mailing list and aifo tool. Signed-off-by: Nadav Tasher <tashernadav@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Message-ID: <20251025171625.33197-1-tashernadav@gmail.com>
2025-10-30dt-bindings: display: panel: document Synaptics TDDI panelKaustabh Chakraborty1-0/+89
Document the Synaptics TDDI (Touch/Display Integration) panel hardware. Along with the MIPI-DSI panel, these devices also have an in-built LED backlight device and a touchscreen, all packed together in a single chip. Also, add compatibles for supported panels - TD4101 and TD4300. Both have the '-panel' suffix so as to remove any ambiguity between the panel and touchscreen chips. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20251009-panel-synaptics-tddi-v5-1-59390997644e@disroot.org
2025-10-30dt-bindings: display: bridge: renesas,dsi-csi2-tx: Align panel example with ↵Marek Vasut1-1/+2
ili9881c binding Update the panel example in this DT schema to match requirements in binding display/panel/ilitek,ili9881c.yaml . This fixes the following schema check warnings: " /tmp/dtx/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.example.dtb: panel@0 (raspberrypi,dsi-7inch): compatible: ['raspberrypi,dsi-7inch'] is too short from schema $id: http://devicetree.org/schemas/display/panel/ilitek,ili9881c.yaml /tmp/dtx/Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.example.dtb: panel@0 (raspberrypi,dsi-7inch): 'power-supply' is a required property from schema $id: http://devicetree.org/schemas/display/panel/ilitek,ili9881c.yaml " Fixes: c376a6943741 ("dt-bindings: display: bridge: renesas,dsi-csi2-tx: Allow panel@ subnode") Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20251029200519.214548-1-marek.vasut+renesas@mailbox.org
2025-10-30dt-bindings: display: panel: samsung,atna33xc20: Document ATNA60CL08Abel Vesa1-0/+2
The Samsung ATNA40CT06 panel is a 16" AMOLED eDP panel. It is similar to the ATNA33XC20 except that it is larger and has a different resolution. It is found on Qualcomm Glymur CRD platform. Raw panel edid: 00 ff ff ff ff ff ff 00 4c 83 a6 41 00 00 00 00 00 20 01 04 b5 22 16 78 03 0b d1 af 51 3d b6 23 0b 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 cb fe 40 64 b0 08 18 70 20 08 88 00 58 d7 10 00 00 1b cb fe 40 64 b0 08 c8 7a 20 08 88 00 58 d7 10 00 00 1b 00 00 00 fd 00 30 78 da da 42 01 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 19 96 c8 46 1c 5e c8 00 00 00 01 4c 70 20 79 02 00 20 00 0c ba 41 59 a6 41 00 00 00 00 00 16 00 21 00 1d 48 0d 98 08 40 0b 08 07 00 f2 ea 50 d7 d3 b6 3d 42 0b 01 45 54 40 5e d0 60 18 10 23 78 26 00 09 07 06 03 00 00 00 50 00 00 22 00 14 e7 f3 09 85 3f 0b 63 00 1f 00 07 00 07 07 17 00 07 00 07 00 81 00 1f 73 1a 00 00 03 03 30 78 00 a0 74 02 60 02 78 00 00 00 00 8d e3 05 80 00 e6 06 05 01 74 60 02 00 00 00 00 00 5f 90 Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20251028-drm-panel-samsung-add-atna60cl08-v1-1-73123789fcdb@linaro.org
2025-10-30dt-bindings: panel: Add Samsung S6E3FC2X01 DDIC with panelDavid Heidelberg2-3/+81
Basic description for S6E3FC2X01 DDIC with attached panel AMS641RW. Samsung AMS641RW is 6.41 inch, 1080x2340 pixels, 19.5:9 ratio panel This panel has three supplies, while panel-simple-dsi is limited to one. There is no user of this compatible, nor the compatible make sense. Remove it from simple DSI panel definitions. Signed-off-by: David Heidelberg <david@ixit.cz> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patch.msgid.link/20251023-s6e3fc2x01-v5-1-8f8852e67417@ixit.cz
2025-10-29ASoC: dt-bindings: cirrus,cs4271: Document mclk clockHerve Codina1-0/+10
The Cirrus CS4271 codec can use an external clock as an input Master Clock. When no crystal is used, the CS4271 component considers its MCLK pin as an input pin and expects the external clock connected to provide the Master Clock. This clock is not documented in the binding. Add the missing clock. Signed-off-by: Herve Codina <herve.codina@bootlin.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://patch.msgid.link/20251029093921.624088-4-herve.codina@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-10-29Documentation: intel_pstate: fix duplicate hyperlink target errorsSwaraj Gaikwad1-0/+8
Fix reST warnings in Documentation/admin-guide/pm/intel_pstate.rst caused by missing explicit hyperlink labels for section titles. Before this change, the following errors were printed during `make htmldocs`: Documentation/admin-guide/pm/intel_pstate.rst:401: ERROR: Indirect hyperlink target (id="id6") refers to target "passive mode", which is a duplicate, and cannot be used as a unique reference. Documentation/admin-guide/pm/intel_pstate.rst:517: ERROR: Indirect hyperlink target (id="id9") refers to target "active mode", which is a duplicate, and cannot be used as a unique reference. Documentation/admin-guide/pm/intel_pstate.rst:611: ERROR: Indirect hyperlink target (id="id15") refers to target "global attributes", which is a duplicate, and cannot be used as a unique reference. ERROR: Duplicate target name, cannot be used as a unique reference: "passive mode", "active mode", "global attributes". These errors occurred because the sections "Active Mode", "Active Mode With HWP", "Passive Mode", and "Global Attributes" did not define explicit hyperlink labels. As a result, Sphinx auto-generated duplicate anchors when the same titles appeared multiple times within the document. Because of this, the generated HTML documentation contained broken references such as: `active mode <Active Mode_>`_ `passive mode <Passive Mode_>`_ `global attributes <Global Attributes_>`_ This patch adds explicit hyperlink labels for the affected sections, ensuring all references are unique and correctly resolved. After applying this patch, `make htmldocs` completes without any warnings, and all hyperlinks in intel_pstate.html render properly. Signed-off-by: Swaraj Gaikwad <swarajgaikwad1925@gmail.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> [ rjw: Subject adjustment ] Link: https://patch.msgid.link/20251029134737.42229-1-swarajgaikwad1925@gmail.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2025-10-29dt-bindings: soc: qcom,aoss-qmp: Document the Glymur AOSS side channelSibi Sankar1-0/+1
Document the Always-on Subsystem side channel on the Glymur SoC. Signed-off-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com> Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20251022-knp-soc-binding-v2-4-3cd3f390f3e2@oss.qualcomm.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-29dt-bindings: soc: qcom,aoss-qmp: Document the Kaanapali AOSS channelJingyi Wang1-0/+1
Document the Always-On Subsystem side channel on the Qualcomm Kaanapali platform for communication with client found on the SoC such as remoteprocs. Reviewed-by: Eugen Hristev <eugen.hristev@linaro.org> Signed-off-by: Jingyi Wang <jingyi.wang@oss.qualcomm.com> Acked-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20251022-knp-soc-binding-v2-2-3cd3f390f3e2@oss.qualcomm.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2025-10-29ASoC: dt-bindings: pm4125-sdw: correct number of soundwire portsSrinivas Kandagatla1-2/+2
For some reason we ended up limiting the number of soundwire ports to 2 in the bindings, the actual codec supports 4 rx and 5 tx ports. Fixes: 88d0d17192c5 ("ASoC: dt-bindings: add bindings for pm4125 audio codec") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com> Link: https://patch.msgid.link/20251029144636.357203-1-srinivas.kandagatla@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
2025-10-29media: dt-bindings: vd55g1: Add vd65g4 compatibleBenjamin Mugnier1-1/+5
Switch compatible from a const to an enum to accommodate both the vd55g1 and the vd65g4, which is the color variant. Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-29media: dt-bindings: video-interfaces: add video-interfaces.h informationFrank Li1-2/+2
Mention include/dt-bindings/media/video-interfaces.h in descriptions to help avoid use hardcode in dts. Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-29dt-bindings: media: convert nxp,tda1997x.txt to yaml formatFrank Li2-178/+162
Convert nxp,tda1997x.txt to yaml format Additional changes: - update audio width to 8, 16, 24, 32. - keep one example only. Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-29dt-bindings: media: Convert ti,tvp5150.txt to yaml format.Frank Li2-157/+133
Convert ti,tvp5150.txt to yaml format. Signed-off-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: David Heidelberg <david@ixit.cz> [Sakari Ailus: Align the endpoint properties to the right column.] Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-29dt-bindings: media: i2c: dw9719: Document DW9800KGriffin Kroah-Hartman1-0/+1
Document the Dongwoon Anatech DW9800K. Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-29dt-bindings: media: i2c: Add DW9718S, DW9719 and DW9761 VCMAndré Apitzsch1-0/+88
Document Dongwoon DW9718S, DW9719 and DW9761 VCM devicetree bindings. Signed-off-by: André Apitzsch <git@apitzsch.eu> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-29dt-bindings: eeprom: at24: Add compatible for Belling BL24S64Luca Weiss1-0/+1
Add the compatible for an 64Kb EEPROM from Belling. Signed-off-by: Luca Weiss <luca@lucaweiss.eu> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20251028-msm8953-cci-v2-3-b5f9f7135326@lucaweiss.eu Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-10-29tracing: Add a config and syscall_user_buf_size file to limit amount writtenSteven Rostedt1-0/+8
When a system call that can copy user space addresses into the ring buffer, it can copy up to 511 bytes of data. This can waste precious ring buffer space if the user isn't interested in the output. Add a new file "syscall_user_buf_size" that gets initialized to a new config CONFIG_SYSCALL_BUF_SIZE_DEFAULT that defaults to 63. The config also is used to limit how much perf can read from user space. Also lower the max down to 165, as this isn't to record everything that a system call may be passing through to the kernel. 165 is more than enough. The reason for 165 is because adding one for the nul terminating byte, as well as possibly needing to append the "..." string turns it into 170 bytes. As this needs to save up to 3 arguments and 3 * 170 is 510 which fits nicely in 512 bytes (a power of 2). Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Takaya Saeki <takayas@google.com> Cc: Tom Zanussi <zanussi@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ian Rogers <irogers@google.com> Cc: Douglas Raillard <douglas.raillard@arm.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Link: https://lore.kernel.org/20251028231148.260068913@kernel.org Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2025-10-29docs: move find-unused-docs.sh to tools/docsJonathan Corbet2-2/+2
...and update references accordingly. Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-29docs: move test_doc_build.py to tools/docsJonathan Corbet1-1/+1
Add this tool to tools/docs. Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-29docs: move get_abi.py to tools/docsJonathan Corbet3-3/+3
Move this tool out of scripts/ to join the other documentation tools; fix up a couple of erroneous references in the process. It's worth noting that this script will fail badly unless one has a PYTHONPATH referencing scripts/lib/abi. Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-29docs: move scripts/documentation-file-ref-check to tools/docsJonathan Corbet1-2/+2
Add this script to the growing collection of documentation tools. Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-29docs: move checktransupdate.py to tools/docsJonathan Corbet3-7/+7
The checktranslate.py tool currently languishes in scripts/; move it to tools/docs and update references accordingly. Cc: Alex Shi <alexs@kernel.org> Cc: Yanteng Si <si.yanteng@linux.dev> Cc: Dongliang Mu <dzm91@hust.edu.cn> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-29docs: Move the "features" tools to tools/docsJonathan Corbet3-111/+2
The scripts for managing the features docs are found in three different directories; unite them all under tools/docs and update references as needed. Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2025-10-29Merge branch '20251014-qcom_ipq5424_nsscc-v7-2-081f4956be02@quicinc.com' ↵Bjorn Andersson1-8/+55
into HEAD Merge IPQ5424 DeviceTree bindings for the Network Subsystem clock controller from topic branch, to gain access to binding constants.
2025-10-28dt-bindings: dma: allwinner,sun50i-a64-dma: Add compatibles for A523Chen-Yu Tsai1-1/+4
There are two DMA controllers on the A523, one in the main system area and the other for the MCU. These are the same as the one found on the A100. The only difference is the DMA endpoint (DRQ) layout. Since the number of channels and endpoints are described with additional generic properties, just add new A523-specific compatible strings and fallback to the A100 one. Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20251027125655.793277-2-wens@kernel.org Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
2025-10-28dt-bindings: mtd: sunxi: Add H616 compatibleRichard Genoud1-3/+38
The H616 NAND controller is quite different from the A10 and A23 ones, some registers offset changed, and some new one are introduced. Also, the DMA handling is different (it uses chained descriptors) So, introduce a new compatible to represent this version of the IP. Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Richard Genoud <richard.genoud@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28dt-bindings: mtd: physmap: add 'clocks' and 'power-domains'Wolfram Sang1-0/+10
Physmap supports minimal PM since commit 0bc448b49e8a017e ("mtd: maps: physmap: Add minimal Runtime PM support"), so support it also when used in DT configurations. Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-10-28dt-bindings: usb: qcom,snps-dwc3: Add Glymur compatibleWesley Cheng1-0/+26
Introduce the compatible definition for Glymur QCOM SNPS DWC3. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Wesley Cheng <wesley.cheng@oss.qualcomm.com> Link: https://patch.msgid.link/20251024-glymur_usb_subsystem-v1-1-bf6faf63b566@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-28net: stmmac: Add a devlink attribute to control timestamping modeMaxime Chevallier2-0/+32
The DWMAC1000 supports 2 timestamping configurations to configure how frequency adjustments are made to the ptp_clock, as well as the reported timestamp values. There was a previous attempt at upstreaming support for configuring this mode by Olivier Dautricourt and Julien Beraud a few years back [1] In a nutshell, the timestamping can be either set in fine mode or in coarse mode. In fine mode, which is the default, we use the overflow of an accumulator to trigger frequency adjustments, but by doing so we lose precision on the timetamps that are produced by the timestamping unit. The main drawback is that the sub-second increment value, used to generate timestamps, can't be set to lower than (2 / ptp_clock_freq). The "fine" qualification comes from the frequent frequency adjustments we are able to do, which is perfect for a PTP follower usecase. In Coarse mode, we don't do frequency adjustments based on an accumulator overflow. We can therefore have very fine subsecond increment values, allowing for better timestamping precision. However this mode works best when the ptp clock frequency is adjusted based on an external signal, such as a PPS input produced by a GPS clock. This mode is therefore perfect for a Grand-master usecase. Introduce a driver-specific devlink parameter "ts_coarse" to enable or disable coarse mode, keeping the "fine" mode as a default. This can then be changed with: devlink dev param set <dev> name ts_coarse value true cmode runtime The associated documentation is also added. [1] : https://lore.kernel.org/netdev/20200514102808.31163-1-olivier.dautricourt@orolia.com/ Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Kory Maincent <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20251024070720.71174-3-maxime.chevallier@bootlin.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-10-28Add support for Cirrus Logic CS530x DAC and CODECMark Brown1-0/+8
Merge series from Vitaly Rodionov <vitalyr@opensource.cirrus.com>: This patch series introduces DAC, CODEC, and SPI control bus support for Cirrus Logic CS530x variants, along with general code cleanup and resolution of checkpatch.pl warnings.
2025-10-28allwinner: a523: Enable I2S and SPDIF TXMark Brown2-7/+41
Merge series from Chen-Yu Tsai <wens@kernel.org>: This series enables the SPDIF and I2S hardware found on the Allwinner A523/A527/T527 family SoCs. These SoCs have one SPDIF interface and four I2S interfaces. All of them are capable of both playback and capture, however the SPDIF driver only supports playback.
2025-10-28Sndcard compatible for qrb2210/qcm2290Mark Brown1-0/+1
Merge series from Alexey Klimov <alexey.klimov@linaro.org>: This is a small patch series that serves as a preparation for adding HDMI audio playback support on QRB2210 RB1 board. The patches here are for sound subsystem. The other series will focus on qcom DT files. The original series where one of the patches here were taken from is https://lore.kernel.org/linux-sound/20250302-rb1_hdmi_sound_first-v1-0-81a87ae1503c@linaro.org/ and sndcard compable patch was added as new one. Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org> --- Changes in v2: - rewrote commit description and subjects/titles where applicable; - switched to SoC-level compatible for qrb2210 sndcard, therefore adjusted DT schema changes; - Link to v1: https://lore.kernel.org/r/20251007-qrb2210-qcm2290-sndcard-v1-0-8222141bca79@linaro.org --- Alexey Klimov (2): ASoC: dt-bindings: qcom,sm8250: add QRB2210 soundcard ASoC: qcom: sm8250: add qrb2210-sndcard compatible string Documentation/devicetree/bindings/sound/qcom,sm8250.yaml | 1 + sound/soc/qcom/sm8250.c | 1 + 2 files changed, 2 insertions(+) --- base-commit: fe45352cd106ae41b5ad3f0066c2e54dbb2dfd70 change-id: 20251007-qrb2210-qcm2290-sndcard-da54245aae3f Best regards, -- Alexey Klimov <alexey.klimov@linaro.org>
2025-10-28ALSA: cs35l56: Add support for factory calibrationMark Brown21-68/+124
Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>: Until now, all products with an amplifier supported by the cs35l56 driver have shipped with Microsoft Windows pre-installed. The factory calibration of speaker protection has therefore been done using the Windows driver. However, products that ship with a Linux-based distro must be able to perform the factory calibration procedure from within the Linux-based environment. This patch series adds that support. NOTE: unfortunately this is yet another series that is mainly ASoC but also needs some changes to the HDA driver, and they have build dependencies on the ASoC code. I suggest taking this all through Mark's tree and we'll avoid sending any other commits to the HDA driver until it has all landed in Takashi's tree.
2025-10-28dt-bindings: serial: snps-dw-apb-uart: Add support for rk3506Heiko Stuebner1-0/+1
The uarts used in the RK3506 SoC are still the same dw-apb-uart compatible type as on the SoCs that came before, so add the RK3506 to the list of variants. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://patch.msgid.link/20251021223209.193569-1-heiko@sntech.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-10-28dt-bindings: net: cdns,macb: add Mobileye EyeQ5 ethernet interfaceThéo Lebrun1-0/+10
Add "cdns,eyeq5-gem" as compatible for the integrated GEM block inside Mobileye EyeQ5 SoCs. It is different from other compatibles in two main ways: (1) it requires a generic PHY and (2) it is better to keep TCP Segmentation Offload (TSO) disabled. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com> Link: https://patch.msgid.link/20251023-macb-eyeq5-v3-1-af509422c204@bootlin.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-10-28regulator: pca9450: add input supply linksMark Brown33-128/+410
Merge series from Oleksij Rempel <o.rempel@pengutronix.de>: This series adds input supply definitions for the NXP PCA9450 PMIC. Some systems detect power events such as undervoltage before the PMIC. To allow correct propagation of such events, each regulator must define its upstream input supply. The first patch updates the devicetree binding to document new *-supply properties, and the second patch adds matching .supply_name entries in the driver. Changes in this series: - Document INL1, INB13, INB26 and INB45 supply properties - Link all LDO and BUCK regulators to their corresponding input groups
generated by cgit v1.2.3 (git 2.39.0) at 2026-05-24 01:45:34 +0300