kernel/linux.git/Documentation/devicetree/bindings/serial, branch v6.12.80

dt-bindings: serial: brcm,bcm7271-uart: Constrain clocks

2025-09-19T14:35:48+00:00

commit ee047e1d85d73496541c54bd4f432c9464e13e65 upstream. Lists should have fixed constraints, because binding must be specific in respect to hardware, thus add missing constraints to number of clocks. Cc: stable Fixes: 88a499cd70d4 ("dt-bindings: Add support for the Broadcom UART driver") Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250812121630.67072-2-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: 8250: Make clocks and clock-frequency exclusive

2025-07-06T09:01:43+00:00

commit 09812134071b3941fb81def30b61ed36d3a5dfb5 upstream. The 8250 binding before converting to json-schema states, - clock-frequency : the input clock frequency for the UART or - clocks phandle to refer to the clk used as per Documentation/devicetree for clock-related properties, where "or" indicates these properties shouldn't exist at the same time. Additionally, the behavior of Linux's driver is strange when both clocks and clock-frequency are specified: it ignores clocks and obtains the frequency from clock-frequency, left the specified clocks unclaimed. It may even be disabled, which is undesired most of the time. But "anyOf" doesn't prevent these two properties from coexisting, as it considers the object valid as long as there's at LEAST one match. Let's switch to "oneOf" and disallows the other property if one exists, precisely matching the original binding and avoiding future confusion on the driver's behavior. Fixes: e69f5dc623f9 ("dt-bindings: serial: Convert 8250 to json-schema") Cc: stable Signed-off-by: Yao Zi Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20250623093445.62327-1-ziyao@disroot.org Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: rs485: Fix rs485-rts-delay property

2024-12-05T13:02:53+00:00

commit 12b3642b6c242061d3ba84e6e3050c3141ded14c upstream. Code expects array only with 2 items which should be checked. But also item checking is not working as it should likely because of incorrect items description. Fixes: d50f974c4f7f ("dt-bindings: serial: Convert rs485 bindings to json-schema") Signed-off-by: Michal Simek Cc: stable@vger.kernel.org Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/820c639b9e22fe037730ed44d1b044cdb6d28b75.1726480384.git.michal.simek@amd.com Signed-off-by: Greg Kroah-Hartman

Merge tag 'tty-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2024-09-26T16:59:50+00:00

Pull tty / serial driver updates from Greg KH: "Here is the "big" set of tty/serial driver updates for 6.12-rc1. Nothing major in here, just nice forward progress in the slow cleanup of the serial apis, and lots of other driver updates and fixes. Included in here are: - serial api updates from Jiri to make things more uniform and sane - 8250_platform driver cleanups - samsung serial driver fixes and updates - qcom-geni serial driver fixes from Johan for the bizarre UART engine that that chip seems to have. Hopefully it's in a better state now, but hardware designers still seem to come up with more ways to make broken UARTS 40+ years after this all should have finished. - sc16is7xx driver updates - omap 8250 driver updates - 8250_bcm2835aux driver updates - a few new serial driver bindings added - other serial minor driver updates All of these have been in linux-next for a long time with no reported problems" * tag 'tty-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (65 commits) tty: serial: samsung: Fix serial rx on Apple A7-A9 tty: serial: samsung: Fix A7-A11 serial earlycon SError tty: serial: samsung: Use bit manipulation macros for APPLE_S5L_* tty: rp2: Fix reset with non forgiving PCIe host bridges serial: 8250_aspeed_vuart: Enable module autoloading serial: qcom-geni: fix polled console corruption serial: qcom-geni: disable interrupts during console writes serial: qcom-geni: fix console corruption serial: qcom-geni: introduce qcom_geni_serial_poll_bitfield() serial: qcom-geni: fix arg types for qcom_geni_serial_poll_bit() soc: qcom: geni-se: add GP_LENGTH/IRQ_EN_SET/IRQ_EN_CLEAR registers serial: qcom-geni: fix false console tx restart serial: qcom-geni: fix fifo polling timeout tty: hvc: convert comma to semicolon mxser: convert comma to semicolon serial: 8250_bcm2835aux: Fix clock imbalance in PM resume serial: sc16is7xx: convert bitmask definitions to use BIT() macro serial: sc16is7xx: fix copy-paste errors in EFR_SWFLOWx_BIT constants serial: sc16is7xx: remove SC16IS7XX_MSR_DELTA_MASK serial: xilinx_uartps: Make cdns_rs485_supported static ...

Merge tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2024-09-19T07:16:04+00:00

Pull x86 platform drivers updates from Hans de Goede: - asus-wmi: Add support for vivobook fan profiles - dell-laptop: Add knobs to change battery charge settings - lg-laptop: Add operation region support - intel-uncore-freq: Add support for efficiency latency control - intel/ifs: Add SBAF test support - intel/pmc: Ignore all LTRs during suspend - platform/surface: Support for arm64 based Surface devices - wmi: Pass event data directly to legacy notify handlers - x86/platform/geode: switch GPIO buttons and LEDs to software properties - bunch of small cleanups, fixes, hw-id additions, etc. * tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits) MAINTAINERS: adjust file entry in INTEL MID PLATFORM platform/x86: x86-android-tablets: Adjust Xiaomi Pad 2 bottom bezel touch buttons LED platform/mellanox: mlxbf-pmc: fix lockdep warning platform/x86/amd: pmf: Add quirk for TUF Gaming A14 platform/x86: touchscreen_dmi: add nanote-next quirk platform/x86: asus-wmi: don't fail if platform_profile already registered platform/x86: asus-wmi: add debug print in more key places platform/x86: intel_scu_wdt: Move intel_scu_wdt.h to x86 subfolder platform/x86: intel_scu_ipc: Move intel_scu_ipc.h out of arch/x86/include/asm MAINTAINERS: Add Intel MID section platform/x86: panasonic-laptop: Add support for programmable buttons platform/olpc: Remove redundant null pointer checks in olpc_ec_setup_debugfs() platform/x86: intel/pmc: Ignore all LTRs during suspend platform/x86: wmi: Call both legacy and WMI driver notify handlers platform/x86: wmi: Merge get_event_data() with wmi_get_notify_data() platform/x86: wmi: Remove wmi_get_event_data() platform/x86: wmi: Pass event data directly to legacy notify handlers platform/x86: thinkpad_acpi: Fix uninitialized symbol 's' warning platform/x86: x86-android-tablets: Fix spelling in the comments platform/x86: ideapad-laptop: Make the scope_guard() clear of its scope ...

dt-bindings: Fix various typos

2024-09-13T19:01:34+00:00

Corrected several typos in Documentation/devicetree/bindings files. Reviewed-by: Krzysztof Kozlowski Reviewed-by: Kuan-Wei Chiu Reviewed-by: Matti Vaittinen Signed-off-by: Yu-Chun Lin Link: https://lore.kernel.org/r/20240905151943.2792056-1-eleanor15x@gmail.com Signed-off-by: Rob Herring (Arm)

dt-bindings: serial: add common properties schema for UART children

2024-08-19T22:04:55+00:00

Properties should be defined in only one place, thus add new serial-peripheral-props.yaml schema with definition of common properties for UART-connected devices (children of UART controller): current-speed and max-speed. The schema can be referenced by individual devices using these properties. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20240811-dt-bindings-serial-peripheral-props-v1-2-1dba258b7492@linaro.org Signed-off-by: Rob Herring (Arm)

dt-bindings: serial: add missing "additionalProperties" on child nodes

2024-08-19T22:04:55+00:00

All nodes need an explicit additionalProperties or unevaluatedProperties unless a $ref has one that's false. Add missing additionalProperties for serial-attached devices. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20240811-dt-bindings-serial-peripheral-props-v1-1-1dba258b7492@linaro.org Signed-off-by: Rob Herring (Arm)

dt-bindings: serial: Allow embedded-controller as child node

2024-08-19T11:39:02+00:00

There exist some embedded controllers (like Microsoft SAM found on Surface devices or Apple Oscar found on old iPhones) that connect to the host device via serial. Allow that class of devices to exist under serial interface controller nodes. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Konrad Dybcio Link: https://lore.kernel.org/r/20240814-topic-sam-v3-1-a84588aad233@quicinc.com Signed-off-by: Hans de Goede

dt-bindings: serial: 8250_omap: Add wakeup-source property

2024-08-14T06:22:49+00:00

Add the wakeup-source to enable this device as a wakeup source if defined in DT. Signed-off-by: Markus Schneider-Pargmann Acked-by: Conor Dooley Reviewed-by: Kevin Hilman Tested-by: Kevin Hilman Link: https://lore.kernel.org/r/20240807141227.1093006-2-msp@baylibre.com Signed-off-by: Greg Kroah-Hartman