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The i2c block on the Apple silicon t8122 (M3) SoC is compatible with the existing driver. Add "apple,t8122-i2c" as SoC specific compatible under "apple,t8103-i2c" used by the deriver. Signed-off-by: Janne Grunau <j@jannau.net> Acked-by: Andi Shyti <andi.shyti@kernel.org> Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
80 lines
1.8 KiB
YAML
80 lines
1.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/i2c/apple,i2c.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Apple/PASemi I2C controller
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maintainers:
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- Sven Peter <sven@svenpeter.dev>
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description: |
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Apple SoCs such as the M1 come with a I2C controller based on the one found
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in machines with P. A. Semi's PWRficient processors.
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The bus is used to communicate with e.g. USB PD chips or the speaker
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amp.
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allOf:
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- $ref: /schemas/i2c/i2c-controller.yaml#
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- apple,t6020-i2c
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- apple,t8122-i2c
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- const: apple,t8103-i2c
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- items:
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- enum:
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# Do not add additional SoC to this list.
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- apple,s5l8960x-i2c
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- apple,t7000-i2c
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- apple,s8000-i2c
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- apple,t8010-i2c
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- apple,t8015-i2c
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- apple,t8103-i2c
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- apple,t8112-i2c
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- apple,t6000-i2c
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- const: apple,i2c
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reg:
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maxItems: 1
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clocks:
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items:
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- description: I2C bus reference clock
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interrupts:
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maxItems: 1
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clock-frequency:
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description: |
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Desired I2C bus clock frequency in Hz. If not specified, 100 kHz will be
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used. This frequency is generated by dividing the reference clock.
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Allowed values are between ref_clk/(16*4) and ref_clk/(16*255).
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power-domains:
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maxItems: 1
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required:
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- compatible
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- reg
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- clocks
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- interrupts
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unevaluatedProperties: false
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examples:
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- |
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i2c@35010000 {
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compatible = "apple,t8103-i2c", "apple,i2c";
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reg = <0x35010000 0x4000>;
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interrupt-parent = <&aic>;
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interrupts = <0 627 4>;
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clocks = <&ref_clk>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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