kernel/linux.git/Documentation/devicetree, branch v6.12.53

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: display/msm: qcom,mdp5: drop lut clock

2025-09-04T13:31:48+00:00

[ Upstream commit 7ab3b7579a6d2660a3425b9ea93b9a140b07f49c ] None of MDP5 platforms have a LUT clock on the display-controller, it was added by the mistake. Drop it, fixing DT warnings on MSM8976 / MSM8956 platforms. Technically it's an ABI break, but no other platforms are affected. Fixes: 385c8ac763b3 ("dt-bindings: display/msm: convert MDP5 schema to YAML format") Signed-off-by: Dmitry Baryshkov Acked-by: Rob Herring (Arm) Patchwork: https://patchwork.freedesktop.org/patch/667822/ Signed-off-by: Rob Clark Signed-off-by: Sasha Levin

scsi: dt-bindings: mediatek,ufs: Add ufs-disable-mcq flag for UFS host

2025-08-28T14:30:57+00:00

commit 794ff7a0a6e76af93c5ec09a49b86fe73373ca59 upstream. Add the 'mediatek,ufs-disable-mcq' property to the UFS device-tree bindings. This flag corresponds to the UFS_MTK_CAP_DISABLE_MCQ host capability recently introduced in the UFS host driver, allowing it to disable the Multiple Circular Queue (MCQ) feature when present. The binding schema has also been updated to resolve DTBS check errors. Cc: stable@vger.kernel.org Fixes: 46bd3e31d74b ("scsi: ufs: mediatek: Add UFS_MTK_CAP_DISABLE_MCQ") Signed-off-by: Macpaul Lin Link: https://lore.kernel.org/r/20250722085721.2062657-2-macpaul.lin@mediatek.com Reviewed-by: Rob Herring (Arm) Reviewed-by: Peter Wang Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman

dt-bindings: display: sprd,sharkl3-dsi-host: Fix missing clocks constraints

2025-08-28T14:30:57+00:00

commit 2558df8c13ae3bd6c303b28f240ceb0189519c91 upstream. 'minItems' alone does not impose upper bound, unlike 'maxItems' which implies lower bound. Add missing clock constraint so the list will have exact number of items (clocks). Fixes: 2295bbd35edb ("dt-bindings: display: add Unisoc's mipi dsi controller bindings") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250720123003.37662-4-krzysztof.kozlowski@linaro.org Signed-off-by: Rob Herring (Arm) Signed-off-by: Greg Kroah-Hartman

dt-bindings: display: sprd,sharkl3-dpu: Fix missing clocks constraints

2025-08-28T14:30:57+00:00

commit 934da599e694d476f493d3927a30414e98a81561 upstream. 'minItems' alone does not impose upper bound, unlike 'maxItems' which implies lower bound. Add missing clock constraint so the list will have exact number of items (clocks). Fixes: 8cae15c60cf0 ("dt-bindings: display: add Unisoc's dpu bindings") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250720123003.37662-3-krzysztof.kozlowski@linaro.org Signed-off-by: Rob Herring (Arm) 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: i2c: nvidia,tegra20-i2c: Specify the required properties

2025-06-27T10:11:44+00:00

commit 903cc7096db22f889d48e2cee8840709ce04fdac upstream. Specify the properties which are essential and which are not for the Tegra I2C driver to function correctly. This was not added correctly when the TXT binding was converted to yaml. All the existing DT nodes have these properties already and hence this does not break the ABI. dmas and dma-names which were specified as a must in the TXT binding is now made optional since the driver can work in PIO mode if dmas are missing. Fixes: f10a9b722f80 ("dt-bindings: i2c: tegra: Convert to json-schema”) Signed-off-by: Akhil R Cc: # v5.17+ Reviewed-by: Krzysztof Kozlowski Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20250603153022.39434-1-akhilrajeev@nvidia.com Signed-off-by: Greg Kroah-Hartman

regulator: dt-bindings: mt6357: Drop fixed compatible requirement

2025-06-19T13:32:37+00:00

commit 9cfdd7752ba5f8cc9b8191e8c9aeeec246241fa4 upstream. Some of the regulators on the MT6357 PMIC currently reference the fixed-regulator dt-binding, which enforces the presence of a regulator-fixed compatible. However since all regulators on the MT6357 PMIC are handled by a single mt6357-regulator driver, probed through MFD, the compatibles don't serve any purpose. In fact they cause failures in the DT kselftest since they aren't probed by the fixed regulator driver as would be expected. Furthermore this is the only dt-binding in this family like this: mt6359-regulator and mt6358-regulator don't require those compatibles. Commit d77e89b7b03f ("arm64: dts: mediatek: mt6357: Drop regulator-fixed compatibles") removed the compatibles from Devicetree, but missed updating the binding, which still requires them, introducing dt-binding errors. Remove the compatible requirement by referencing the plain regulator dt-binding instead to fix the dt-binding errors. Fixes: d77e89b7b03f ("arm64: dts: mediatek: mt6357: Drop regulator-fixed compatibles") Signed-off-by: Nícolas F. R. A. Prado Link: https://patch.msgid.link/20250514-mt6357-regulator-fixed-compatibles-removal-bindings-v1-1-2421e9cc6cc7@collabora.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

dt-bindings: pwm: adi,axi-pwmgen: Fix clocks

2025-06-19T13:32:24+00:00

[ Upstream commit e683131e64f71e957ca77743cb3d313646157329 ] Fix a shortcoming in the bindings that doesn't allow for a separate external clock. The AXI PWMGEN IP block has a compile option ASYNC_CLK_EN that allows the use of an external clock for the PWM output separate from the AXI clock that runs the peripheral. This was missed in the original bindings and so users were writing dts files where the one and only clock specified would be the external clock, if there was one, incorrectly missing the separate AXI clock. The correct bindings are that the AXI clock is always required and the external clock is optional (must be given only when HDL compile option ASYNC_CLK_EN=1). Fixes: 1edf2c2a2841 ("dt-bindings: pwm: Add AXI PWM generator") Cc: stable@vger.kernel.org Signed-off-by: David Lechner Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250529-pwm-axi-pwmgen-add-external-clock-v3-2-5d8809a7da91@baylibre.com Signed-off-by: Uwe Kleine-König Signed-off-by: Sasha Levin

dt-bindings: pwm: Correct indentation and style in DTS example

2025-06-19T13:32:24+00:00

[ Upstream commit 78dcad6daa405b8a939cd08f6ccd6c4e2cb50a9c ] DTS example in the bindings should be indented with 2- or 4-spaces and aligned with opening '- |', so correct any differences like 3-spaces or mixtures 2- and 4-spaces in one binding. No functional changes here, but saves some comments during reviews of new patches built on existing code. Signed-off-by: Krzysztof Kozlowski Acked-by: Nuno Sa Link: https://lore.kernel.org/r/20250107125831.225068-1-krzysztof.kozlowski@linaro.org Signed-off-by: Uwe Kleine-König Stable-dep-of: e683131e64f7 ("dt-bindings: pwm: adi,axi-pwmgen: Fix clocks") Signed-off-by: Sasha Levin