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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml
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# 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

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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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    $ref: /schemas/graph.yaml#/properties/ports

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    properties:

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      port@0:

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        $ref: /schemas/graph.yaml#/properties/port

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        description: |

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          Input endpoints of the controller.

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      port@1:

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        $ref: /schemas/graph.yaml#/properties/port

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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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      - port@0

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      - port@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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  - 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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