From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Add device tree bindings for the i2c controller on the Microchip PolarFire SoC. Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Daire McNamara <daire.mcnamara@xxxxxxxxxxxxx> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> --- .../bindings/i2c/microchip,mpfs-i2c.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml b/Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml new file mode 100644 index 000000000000..065ec3d4c95e --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/microchip,mpfs-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip MPFS I2C Controller Device Tree Bindings + +maintainers: + - Daire McNamara <daire.mcnamara@xxxxxxxxxxxxx> + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + oneOf: + - items: + - const: microchip,mpfs-i2c # Microchip PolarFire SoC compatible SoCs + - const: microchip,corei2c-rtl-v7 # Microchip Fabric based i2c IP core + - const: microchip,corei2c-rtl-v7 # Microchip Fabric based i2c IP core + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-frequency: + description: | + Desired I2C bus clock frequency in Hz. As only Standard and Fast + modes are supported, possible values are 100000 and 400000. + enum: [100000, 400000] + +required: + - compatible + - reg + - interrupts + - clocks + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/clock/microchip,mpfs-clock.h> + i2c@2010a000 { + compatible = "microchip,mpfs-i2c", "microchip,corei2c-rtl-v7"; + reg = <0x2010a000 0x1000>; + clocks = <&clkcfg CLK_I2C0>; + interrupt-parent = <&plic>; + interrupts = <58>; + clock-frequency = <100000>; + }; +... -- 2.35.0
