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dt-bindings: aspeed-i2c: Convert txt to yaml format
Convert aspeed i2c to yaml.
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Link: https://lore.kernel.org/r/20210603024839.27976-2-jamin_lin@aspeedtech.com
Signed-off-by: Rob Herring <robh@kernel.org>
authored by
Jamin Lin
and committed by
Rob Herring
810e4441
000fe967
+75
-49
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Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
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Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
···
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ASPEED I2C on the AST24XX, AST25XX, and AST26XX SoCs Device Tree Bindings
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maintainers:
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- Rayn Chen <rayn_chen@aspeedtech.com>
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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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enum:
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- aspeed,ast2400-i2c-bus
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- aspeed,ast2500-i2c-bus
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- aspeed,ast2600-i2c-bus
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reg:
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minItems: 1
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maxItems: 2
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items:
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- description: address offset and range of bus
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- description: address offset and range of bus buffer
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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description:
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root clock of bus, should reference the APB
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clock in the second cell
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resets:
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maxItems: 1
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bus-frequency:
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minimum: 500
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maximum: 4000000
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default: 100000
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description: frequency of the bus clock in Hz defaults to 100 kHz when not
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specified
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multi-master:
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type: boolean
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description:
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states that there is another master active on this bus
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required:
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- reg
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- compatible
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- clocks
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- resets
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/aspeed-clock.h>
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i2c0: i2c-bus@40 {
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#address-cells = <1>;
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#size-cells = <0>;
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#interrupt-cells = <1>;
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compatible = "aspeed,ast2500-i2c-bus";
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reg = <0x40 0x40>;
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clocks = <&syscon ASPEED_CLK_APB>;
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resets = <&syscon ASPEED_RESET_I2C>;
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bus-frequency = <100000>;
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interrupts = <0>;
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interrupt-parent = <&i2c_ic>;
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};
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Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
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Documentation/devicetree/bindings/i2c/i2c-aspeed.txt
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Device tree configuration for the I2C busses on the AST24XX, AST25XX, and AST26XX SoCs.
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Required Properties:
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- #address-cells : should be 1
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- #size-cells : should be 0
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- reg : address offset and range of bus
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- compatible : should be "aspeed,ast2400-i2c-bus"
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or "aspeed,ast2500-i2c-bus"
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or "aspeed,ast2600-i2c-bus"
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- clocks : root clock of bus, should reference the APB
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clock in the second cell
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- resets : phandle to reset controller with the reset number in
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the second cell
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- interrupts : interrupt number
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-
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Optional Properties:
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- bus-frequency : frequency of the bus clock in Hz defaults to 100 kHz when not
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specified
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- multi-master : states that there is another master active on this bus.
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Example:
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i2c {
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compatible = "simple-bus";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0 0x1e78a000 0x1000>;
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i2c_ic: interrupt-controller@0 {
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#interrupt-cells = <1>;
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compatible = "aspeed,ast2400-i2c-ic";
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reg = <0x0 0x40>;
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interrupts = <12>;
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interrupt-controller;
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};
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i2c0: i2c-bus@40 {
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#address-cells = <1>;
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#size-cells = <0>;
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#interrupt-cells = <1>;
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reg = <0x40 0x40>;
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compatible = "aspeed,ast2400-i2c-bus";
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clocks = <&syscon ASPEED_CLK_APB>;
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resets = <&syscon ASPEED_RESET_I2C>;
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bus-frequency = <100000>;
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interrupts = <0>;
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interrupt-parent = <&i2c_ic>;
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};
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};