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These devices may require corresponding device tree nodes, especially when acting as providers, to supply phandles for their consumers. Define an RPMSG node to work as a container for a group of RPMSG channels under the imx_rproc node. Each subnode within "rpmsg" represents an individual RPMSG channel. The name of each subnode corresponds to the channel name as defined by the remote processor. All remote devices associated with a given channel are defined as child nodes under the corresponding channel node. Signed-off-by: Shenwei Wang --- .../bindings/remoteproc/fsl,imx-rproc.yaml | 117 ++++++++++++++++++ 1 file changed, 117 insertions(+) diff --git a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml index 57d75acb0b5e..a105aac798d0 100644 --- a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml @@ -84,6 +84,86 @@ properties: This property is to specify the resource id of the remote processor in SoC which supports SCFW + rpmsg: + type: object + additionalProperties: false + description: + Present a group of RPMSG channel devices. + + properties: + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + rpmsg-io-channel: + type: object + unevaluatedProperties: false + properties: + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + patternProperties: + "gpio@[0-9a-f]+$": + type: object + unevaluatedProperties: false + properties: + compatible: + enum: + - fsl,imx-rpmsg-gpio + + reg: + maxItems: 1 + + required: + - compatible + - reg + + allOf: + - $ref: /schemas/gpio/gpio.yaml# + - $ref: /schemas/interrupt-controller.yaml# + + required: + - '#address-cells' + - '#size-cells' + + rpmsg-i2c-channel: + type: object + unevaluatedProperties: false + properties: + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + patternProperties: + "i2c@[0-9a-f]+$": + type: object + unevaluatedProperties: false + properties: + compatible: + enum: + - fsl,imx-rpmsg-i2c + + reg: + maxItems: 1 + + required: + - compatible + - reg + + allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + + required: + - '#address-cells' + - '#size-cells' + required: - compatible @@ -146,5 +226,42 @@ examples: &mu 3 1>; memory-region = <&vdev0buffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>; syscon = <&src>; + + rpmsg { + rpmsg-io-channel { + #address-cells = <1>; + #size-cells = <0>; + + gpio@0 { + compatible = "fsl,imx-rpmsg-gpio"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells = <2>; + interrupt-controller; + interrupt-parent = <&rpmsg_gpioa>; + }; + + gpio@1 { + compatible = "fsl,imx-rpmsg-gpio"; + reg = <1>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells = <2>; + interrupt-controller; + interrupt-parent = <&rpmsg_gpiob>; + }; + }; + + rpmsg-i2c-channel { + #address-cells = <1>; + #size-cells = <0>; + + i2c@0 { + compatible = "fsl,imx-rpmsg-i2c"; + reg = <0>; + }; + }; + }; }; ... -- 2.43.0