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2024-05-06dt-bindings: i2c: renesas,riic: Document R9A09G057 supportLad Prabhakar1-8/+11
Document support for the I2C Bus Interface (RIIC) available in the Renesas RZ/V2H(P) (R9A09G057) SoC. The RIIC interface in the Renesas RZ/V2H(P) differs from RZ/A in a couple of ways: - Register offsets for the RZ/V2H(P) SoC differ from those of the RZ/A SoC. - RZ/V2H register access is limited to 8-bit, whereas RZ/A supports 8/16/32-bit. - RZ/V2H has bit differences in the slave address register. To accommodate these differences, a new compatible string "renesas,riic-r9a09g057" is added. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2022-12-02dt-bindings: i2c: renesas,riic: Document RZ/Five SoCLad Prabhakar1-1/+1
The RIIC block on the RZ/Five SoC is identical to one found on the RZ/G2UL SoC. "renesas,riic-r9a07g043" compatible string will be used on the RZ/Five SoC so to make this clear, update the comment to include RZ/Five SoC. No driver changes are required as generic compatible string "renesas,riic-rz" will be used as a fallback on RZ/Five SoC. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-30dt-bindings: i2c: renesas,riic: Fix 'unevaluatedProperties' warningsLad Prabhakar1-0/+3
With 'unevaluatedProperties' support implemented, there's a number of warnings when running dtbs_check: arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dtb: i2c@10058000: Unevaluated properties are not allowed ('resets' was unexpected) From schema: Documentation/devicetree/bindings/i2c/renesas,riic.yaml The main problem is that bindings schema marks resets as a required property for RZ/G2L (and alike) SoC's but resets property is not part of schema. So to fix this just add a resets property with maxItems set to 1. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-04-25dt-bindings: i2c: renesas,riic: Document RZ/G2UL SoCBiju Das1-0/+2
Document RZ/G2UL I2C bindings. RZ/G2UL I2C is identical to one found on the RZ/G2L SoC. No driver changes are required as RZ/G2L compatible string "renesas,riic-rz" will be used as a fallback. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220425133152.176949-1-biju.das.jz@bp.renesas.com
2022-03-01dt-bindings: i2c: renesas,riic: Document RZ/V2L SoCLad Prabhakar1-0/+2
Document RZ/V2L I2C bindings. RZ/V2L I2C is identical to one found on the RZ/G2L SoC. No driver changes are required as RZ/G2L compatible string "renesas,riic-rz" will be used as a fallback. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220227214747.24819-1-prabhakar.mahadev-lad.rj@bp.renesas.com
2021-08-12dt-bindings: i2c: renesas,riic: Make interrupt-names requiredGeert Uytterhoeven1-0/+1
Now the I2C device nodes in all DTS files have gained "interrupt-names" properties, the "interrupt-names" property can be made required. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/da8d1973dcd419d8d9c8c662ee614952f3a6969e.1626267422.git.geert+renesas@glider.be
2021-08-12dt-bindings: i2c: renesas,riic: Add interrupt-namesGeert Uytterhoeven1-8/+21
The Renesas RZ/A and RZ/G2L I2C Bus Interface has no less than 8 interrupts. Hence document the "interrupt-names" property, to make it easier to review the interrupt mappings in DTS files. Note that this property cannot be made required yet, as the RIIC nodes in all DTS files lack the property. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/a81d0e14e395f297666e8c3a8ce3e292d2606a65.1626267422.git.geert+renesas@glider.be
2021-06-20dt-bindings: i2c: renesas,riic: Document RZ/G2L I2C controllerBiju Das1-4/+15
Document RZ/G2L I2C controller bindings. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Wolfram Sang <wsa@kernel.org>
2021-05-28dt-bindings: i2c: renesas,riic: Convert to json-schemaGeert Uytterhoeven1-0/+82
Convert the Renesas RZ/A I2C Bus Interface (RIIC) Device Tree binding documentation to json-schema. Document missing properties. Update the example to match reality. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>