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1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/i2c/apple,i2c.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Apple/PASemi I2C controller8 9maintainers:10 - Sven Peter <sven@svenpeter.dev>11 12description: |13 Apple SoCs such as the M1 come with a I2C controller based on the one found14 in machines with P. A. Semi's PWRficient processors.15 The bus is used to communicate with e.g. USB PD chips or the speaker16 amp.17 18allOf:19 - $ref: /schemas/i2c/i2c-controller.yaml#20 21properties:22 compatible:23 items:24 - enum:25 - apple,t8103-i2c26 - apple,t8112-i2c27 - apple,t6000-i2c28 - const: apple,i2c29 30 reg:31 maxItems: 132 33 clocks:34 items:35 - description: I2C bus reference clock36 37 interrupts:38 maxItems: 139 40 clock-frequency:41 description: |42 Desired I2C bus clock frequency in Hz. If not specified, 100 kHz will be43 used. This frequency is generated by dividing the reference clock.44 Allowed values are between ref_clk/(16*4) and ref_clk/(16*255).45 46 power-domains:47 maxItems: 148 49required:50 - compatible51 - reg52 - clocks53 - interrupts54 55unevaluatedProperties: false56 57examples:58 - |59 i2c@35010000 {60 compatible = "apple,t8103-i2c", "apple,i2c";61 reg = <0x35010000 0x4000>;62 interrupt-parent = <&aic>;63 interrupts = <0 627 4>;64 clocks = <&ref_clk>;65 #address-cells = <1>;66 #size-cells = <0>;67 };68