3567932c56
Add the obvious compatible name to the existing I2C binding, and pair it with the existing A31 fallback compatible string, as the devices are compatible. On the way use enums to group all compatible devices together. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@kernel.org>
122 lines
2.6 KiB
YAML
122 lines
2.6 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/i2c/marvell,mv64xxx-i2c.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Marvell MV64XXX I2C Controller Device Tree Bindings
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maintainers:
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- Gregory CLEMENT <gregory.clement@bootlin.com>
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properties:
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compatible:
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oneOf:
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- const: allwinner,sun4i-a10-i2c
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- items:
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- const: allwinner,sun7i-a20-i2c
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- const: allwinner,sun4i-a10-i2c
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- const: allwinner,sun6i-a31-i2c
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- items:
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- enum:
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- allwinner,sun8i-a23-i2c
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- allwinner,sun8i-a83t-i2c
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- allwinner,sun50i-a64-i2c
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- allwinner,sun50i-a100-i2c
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- allwinner,sun50i-h6-i2c
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- allwinner,sun50i-h616-i2c
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- const: allwinner,sun6i-a31-i2c
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- const: marvell,mv64xxx-i2c
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- const: marvell,mv78230-i2c
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- const: marvell,mv78230-a0-i2c
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description:
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Only use "marvell,mv78230-a0-i2c" for a very rare, initial
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version of the SoC which had broken offload support. Linux
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auto-detects this and sets it appropriately.
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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minItems: 1
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maxItems: 2
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items:
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- description: Reference clock for the I2C bus
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- description: Bus clock (Only for Armada 7K/8K)
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clock-names:
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minItems: 1
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maxItems: 2
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items:
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- const: core
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- const: reg
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description:
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Mandatory if two clocks are used (only for Armada 7k and 8k).
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resets:
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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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- interrupts
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allOf:
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- $ref: /schemas/i2c/i2c-controller.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- allwinner,sun4i-a10-i2c
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- allwinner,sun6i-a31-i2c
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then:
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required:
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- clocks
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- if:
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properties:
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compatible:
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contains:
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const: allwinner,sun6i-a31-i2c
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then:
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required:
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- resets
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unevaluatedProperties: false
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examples:
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- |
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i2c@11000 {
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compatible = "marvell,mv64xxx-i2c";
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reg = <0x11000 0x20>;
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interrupts = <29>;
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clock-frequency = <100000>;
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};
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- |
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i2c@11000 {
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compatible = "marvell,mv78230-i2c";
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reg = <0x11000 0x100>;
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interrupts = <29>;
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clock-frequency = <100000>;
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};
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- |
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i2c@701000 {
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compatible = "marvell,mv78230-i2c";
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reg = <0x701000 0x20>;
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interrupts = <29>;
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clock-frequency = <100000>;
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clock-names = "core", "reg";
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clocks = <&core_clock>, <®_clock>;
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};
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...
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