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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /Documentation/devicetree/bindings/i2c/apple,i2c.yaml | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/apple,i2c.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/i2c/apple,i2c.yaml | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml new file mode 100644 index 0000000000..077d2a539c --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml @@ -0,0 +1,67 @@ +# 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 <sven@svenpeter.dev> + +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>; + }; |