# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/i2c/apple,i2c.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Apple/PASemi I2C controller maintainers: - Sven Peter description: | Apple SoCs such as the M1 come with a I2C controller based on the one found in machines with P. A. Semi's PWRficient processors. The bus is used to communicate with e.g. USB PD chips or the speaker amp. allOf: - $ref: /schemas/i2c/i2c-controller.yaml# properties: compatible: items: - enum: - apple,t8103-i2c - apple,t8112-i2c - apple,t6000-i2c - const: apple,i2c reg: maxItems: 1 clocks: items: - description: I2C bus reference clock interrupts: maxItems: 1 clock-frequency: description: | Desired I2C bus clock frequency in Hz. If not specified, 100 kHz will be used. This frequency is generated by dividing the reference clock. Allowed values are between ref_clk/(16*4) and ref_clk/(16*255). power-domains: maxItems: 1 required: - compatible - reg - clocks - interrupts unevaluatedProperties: false examples: - | i2c@35010000 { compatible = "apple,t8103-i2c", "apple,i2c"; reg = <0x35010000 0x4000>; interrupt-parent = <&aic>; interrupts = <0 627 4>; clocks = <&ref_clk>; #address-cells = <1>; #size-cells = <0>; };