From: Daire McNamara <daire.mcnamara@xxxxxxxxxxxxx> Add device tree bindings for the Microchip PolarFire I2C controller Signed-off-by: Daire McNamara <daire.mcnamara@xxxxxxxxxxxxx> --- .../bindings/i2c/microchip,mpfs-i2c.yaml | 74 +++++++++++++++++++ 1 file changed, 74 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..bc4ea4498d35 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/microchip,mpfs-i2c.yaml @@ -0,0 +1,74 @@ +# 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> + +description: | + This I2C controller is found on the Microchip PolarFire SoC. + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + enum: + - microchip,mpfs-i2c # Microchip PolarFire SoC compatible SoCs + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + description: Phandle of the clock feeding the I2C controller. + minItems: 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> + soc { + #address-cells = <2>; + #size-cells = <2>; + i2c@2010a000 { + compatible = "microchip,mpfs-i2c"; + reg = <0 0x2010a000 0 0x1000>; + interrupts = <58>; + clock-frequency = <100000>; + clocks = <&clkcfg CLK_I2C0>; + }; + }; + - | + #include <dt-bindings/clock/microchip,mpfs-clock.h> + soc { + #address-cells = <2>; + #size-cells = <2>; + i2c@2010b000 { + compatible = "microchip,mpfs-i2c"; + reg = <0 0x2010b000 0 0x1000>; + interrupts = <61>; + clock-frequency = <100000>; + clocks = <&clkcfg CLK_I2C1>; + }; + }; +... -- 2.25.1
