# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-hdmi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner A10 HDMI Controller Device Tree Bindings
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description: |
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The HDMI Encoder supports the HDMI video and audio outputs, and does
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CEC. It is one end of the pipeline.
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maintainers:
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- Chen-Yu Tsai <wens@csie.org>
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- Maxime Ripard <mripard@kernel.org>
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properties:
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compatible:
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oneOf:
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- const: allwinner,sun4i-a10-hdmi
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- const: allwinner,sun5i-a10s-hdmi
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- const: allwinner,sun6i-a31-hdmi
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- items:
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- const: allwinner,sun7i-a20-hdmi
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- const: allwinner,sun5i-a10s-hdmi
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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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oneOf:
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- items:
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- description: The HDMI interface clock
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- description: The HDMI module clock
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- description: The first video PLL
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- description: The second video PLL
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- items:
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- description: The HDMI interface clock
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- description: The HDMI module clock
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- description: The HDMI DDC clock
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- description: The first video PLL
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- description: The second video PLL
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clock-names:
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oneOf:
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- items:
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- const: ahb
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- const: mod
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- const: pll-0
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- const: pll-1
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- items:
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- const: ahb
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- const: mod
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- const: ddc
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- const: pll-0
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- const: pll-1
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resets:
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maxItems: 1
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dmas:
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items:
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- description: DDC Transmission DMA Channel
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- description: DDC Reception DMA Channel
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- description: Audio Transmission DMA Channel
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dma-names:
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items:
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- const: ddc-tx
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- const: ddc-rx
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- const: audio-tx
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ports:
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type: object
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description: |
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A ports node with endpoint definitions as defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt.
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properties:
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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port@0:
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type: object
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description: |
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Input endpoints of the controller.
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port@1:
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type: object
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description: |
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Output endpoints of the controller. Usually an HDMI
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connector.
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required:
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- "#address-cells"
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- "#size-cells"
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- port@0
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- port@1
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additionalProperties: false
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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- dmas
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- dma-names
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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-hdmi
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then:
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properties:
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clocks:
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minItems: 5
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clock-names:
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minItems: 5
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required:
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- resets
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/sun4i-a10-ccu.h>
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#include <dt-bindings/dma/sun4i-a10.h>
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#include <dt-bindings/reset/sun4i-a10-ccu.h>
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hdmi: hdmi@1c16000 {
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compatible = "allwinner,sun4i-a10-hdmi";
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reg = <0x01c16000 0x1000>;
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interrupts = <58>;
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clocks = <&ccu CLK_AHB_HDMI0>, <&ccu CLK_HDMI>,
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<&ccu CLK_PLL_VIDEO0_2X>,
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<&ccu CLK_PLL_VIDEO1_2X>;
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clock-names = "ahb", "mod", "pll-0", "pll-1";
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dmas = <&dma SUN4I_DMA_NORMAL 16>,
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<&dma SUN4I_DMA_NORMAL 16>,
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<&dma SUN4I_DMA_DEDICATED 24>;
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dma-names = "ddc-tx", "ddc-rx", "audio-tx";
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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hdmi_in: port@0 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0>;
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hdmi_in_tcon0: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&tcon0_out_hdmi>;
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};
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hdmi_in_tcon1: endpoint@1 {
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reg = <1>;
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remote-endpoint = <&tcon1_out_hdmi>;
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};
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};
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hdmi_out: port@1 {
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reg = <1>;
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};
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};
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};
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...
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