kernel.git/Documentation/devicetree/bindings/i2c, branch linux-6.15.y

dt-bindings: i2c: realtek,rtl9301: Fix missing 'reg' constraint

2025-07-10T14:08:52Z

commit 5f05fc6e2218db7ecc52c60eb34b707fe69262c2 upstream. Lists should have fixed amount if items, so add missing constraint to the 'reg' property (only one address space entry). Fixes: c5eda0333076 ("dt-bindings: i2c: Add Realtek RTL I2C Controller") Cc: # v6.13+ Signed-off-by: Krzysztof Kozlowski Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20250702061530.6940-2-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman

dt-bindings: i2c: nvidia,tegra20-i2c: Specify the required properties

2025-06-27T10:13:40Z

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

dt-bindings: i2c: snps,designware-i2c: describe Renesas RZ/N1D variant

2025-03-28T11:37:41Z

So far, no differences are known, so it can fallback to the default compatible. Signed-off-by: Wolfram Sang Acked-by: Conor Dooley

dt-bindings: i2c: spacemit: add support for K1 SoC

2025-03-21T00:31:02Z

The I2C of K1 supports fast-speed-mode and high-speed-mode, and supports FIFO transmission. Signed-off-by: Troy Mitchell Reviewed-by: Conor Dooley Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20250319-k1-i2c-master-v8-1-013e2df2b78d@gmail.com

dt-bindings: i2c: omap: Add mux-states property

2025-03-21T00:31:02Z

Add mux controller support for when the I2C lines are muxed after signals come out of SoC and before they go to any client. Signed-off-by: Jayesh Choudhary Reviewed-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20250318103622.29979-2-j-choudhary@ti.com Signed-off-by: Andi Shyti

dt-bindings: i2c: i2c-rk3x: Add rk3562 support

2025-03-18T20:53:54Z

rk3562 i2c compatible to the existing rk3399 binding. Signed-off-by: Kever Yang Reviewed-by: Heiko Stuebner Acked-by: Rob Herring (Arm) Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20250227111913.2344207-5-kever.yang@rock-chips.com

dt-bindings: i2c: imx-lpi2c: add i.MX94 LPI2C

2025-03-18T20:53:54Z

Add compatible string "fsl,imx94-lpi2c" for the i.MX94 chip, which is backward compatible with i.MX7ULP. Set it to fall back to "fsl,imx7ulp-lpi2c". Signed-off-by: Frank Li Acked-by: Conor Dooley Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20250306155815.110514-1-Frank.Li@nxp.com

dt-bindings: i2c: qup: Document interconnects

2025-03-18T20:53:53Z

When the I2C QUP controller is used together with a DMA engine it needs to vote for the interconnect path to the DRAM. Otherwise it may be unable to access the memory quickly enough. Signed-off-by: Stephan Gerhold Reviewed-by: Rob Herring Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20231128-i2c-qup-dvfs-v1-2-59a0e3039111@kernkonzept.com

dt-bindings: i2c: qcom,i2c-qup: Document power-domains

2025-03-18T20:53:53Z

Similar to qcom,geni-i2c, for i2c-qup we need to vote for performance states on the VDDCX power domain to ensure that required clock rates can be generated correctly. I2C is typically used with a fixed clock rate, so a single required-opp is sufficient without a full OPP table (unlike spi-qup for example). Signed-off-by: Stephan Gerhold Reviewed-by: Rob Herring Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20231128-i2c-qup-dvfs-v1-1-59a0e3039111@kernkonzept.com

dt-bindings: i2c: exynos5: add exynos7870-hsi2c compatible

2025-03-18T20:53:53Z

Exynos7870's HS-I2C controllers are entirely compatible with samsung,exynos7-hsi2c. Document Exynos7870's HS-I2C compatible string appropriately. Signed-off-by: Kaustabh Chakraborty Reviewed-by: Krzysztof Kozlowski Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20250204-exynos7870-i2c-v1-2-63d67871ab7e@disroot.org