330 lines
8.6 KiB
YAML
330 lines
8.6 KiB
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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$id: http://devicetree.org/schemas/display/allwinner,sun8i-r40-tcon-top.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner R40 TCON TOP
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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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description: |
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TCON TOPs main purpose is to configure whole display pipeline. It
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determines relationships between mixers and TCONs, selects source
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TCON for HDMI, muxes LCD and TV encoder GPIO output, selects TV
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encoder clock source and contains additional TV TCON and DSI gates.
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It allows display pipeline to be configured in very different ways:
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/ LCD0/LVDS0
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/ [0] TCON-LCD0
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| \ MIPI DSI
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mixer0 |
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\ / [1] TCON-LCD1 - LCD1/LVDS1
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TCON-TOP
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/ \ [2] TCON-TV0 [0] - TVE0/RGB
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mixer1 | \
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| TCON-TOP - HDMI
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| /
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\ [3] TCON-TV1 [1] - TVE1/RGB
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Note that both TCON TOP references same physical unit. Both mixers
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can be connected to any TCON. Not all TCON TOP variants support all
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features.
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properties:
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"#clock-cells":
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const: 1
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compatible:
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enum:
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- allwinner,sun8i-r40-tcon-top
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- allwinner,sun20i-d1-tcon-top
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- allwinner,sun50i-h6-tcon-top
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reg:
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maxItems: 1
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clocks:
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minItems: 2
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maxItems: 6
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clock-names:
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minItems: 2
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maxItems: 6
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clock-output-names:
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minItems: 1
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maxItems: 3
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resets:
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maxItems: 1
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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 endpoint for Mixer 0 mux.
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port@1:
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$ref: /schemas/graph.yaml#/properties/port
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description: |
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Output endpoint for Mixer 0 mux
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port@2:
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$ref: /schemas/graph.yaml#/properties/port
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description: |
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Input endpoint for Mixer 1 mux.
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port@3:
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$ref: /schemas/graph.yaml#/properties/port
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description: |
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Output endpoint for Mixer 1 mux
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port@4:
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$ref: /schemas/graph.yaml#/properties/port
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description: |
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Input endpoint for HDMI mux.
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port@5:
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$ref: /schemas/graph.yaml#/properties/port
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description: |
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Output endpoint for HDMI mux
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required:
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- port@0
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- port@1
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- port@4
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- port@5
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required:
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- "#clock-cells"
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- compatible
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- reg
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- clocks
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- clock-names
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- clock-output-names
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- resets
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- ports
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additionalProperties: false
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allOf:
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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,sun8i-r40-tcon-top
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then:
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properties:
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clocks:
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items:
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- description: The TCON TOP interface clock
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- description: The TCON TOP TV0 clock
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- description: The TCON TOP TVE0 clock
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- description: The TCON TOP TV1 clock
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- description: The TCON TOP TVE1 clock
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- description: The TCON TOP MIPI DSI clock
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clock-names:
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items:
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- const: bus
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- const: tcon-tv0
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- const: tve0
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- const: tcon-tv1
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- const: tve1
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- const: dsi
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clock-output-names:
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items:
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- description: TCON TV0 output clock name
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- description: TCON TV1 output clock name
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- description: DSI output clock name
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ports:
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required:
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- port@2
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- port@3
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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,sun20i-d1-tcon-top
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then:
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properties:
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clocks:
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items:
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- description: The TCON TOP interface clock
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- description: The TCON TOP TV0 clock
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- description: The TCON TOP TVE0 clock
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- description: The TCON TOP MIPI DSI clock
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clock-names:
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items:
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- const: bus
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- const: tcon-tv0
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- const: tve0
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- const: dsi
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clock-output-names:
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items:
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- description: TCON TV0 output clock name
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- description: DSI output clock name
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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,sun50i-h6-tcon-top
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then:
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properties:
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clocks:
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items:
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- description: The TCON TOP interface clock
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- description: The TCON TOP TV0 clock
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clock-names:
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items:
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- const: bus
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- const: tcon-tv0
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clock-output-names:
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items:
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- description: TCON TV0 output clock name
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/clock/sun8i-r40-ccu.h>
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#include <dt-bindings/reset/sun8i-r40-ccu.h>
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tcon_top: tcon-top@1c70000 {
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compatible = "allwinner,sun8i-r40-tcon-top";
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reg = <0x01c70000 0x1000>;
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clocks = <&ccu CLK_BUS_TCON_TOP>,
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<&ccu CLK_TCON_TV0>,
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<&ccu CLK_TVE0>,
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<&ccu CLK_TCON_TV1>,
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<&ccu CLK_TVE1>,
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<&ccu CLK_DSI_DPHY>;
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clock-names = "bus",
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"tcon-tv0",
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"tve0",
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"tcon-tv1",
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"tve1",
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"dsi";
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clock-output-names = "tcon-top-tv0",
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"tcon-top-tv1",
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"tcon-top-dsi";
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resets = <&ccu RST_BUS_TCON_TOP>;
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#clock-cells = <1>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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tcon_top_mixer0_in: port@0 {
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reg = <0>;
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tcon_top_mixer0_in_mixer0: endpoint {
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remote-endpoint = <&mixer0_out_tcon_top>;
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};
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};
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tcon_top_mixer0_out: port@1 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <1>;
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tcon_top_mixer0_out_tcon_lcd0: endpoint@0 {
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reg = <0>;
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};
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tcon_top_mixer0_out_tcon_lcd1: endpoint@1 {
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reg = <1>;
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};
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tcon_top_mixer0_out_tcon_tv0: endpoint@2 {
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reg = <2>;
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remote-endpoint = <&tcon_tv0_in_tcon_top_mixer0>;
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};
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tcon_top_mixer0_out_tcon_tv1: endpoint@3 {
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reg = <3>;
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remote-endpoint = <&tcon_tv1_in_tcon_top_mixer0>;
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};
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};
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tcon_top_mixer1_in: port@2 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <2>;
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tcon_top_mixer1_in_mixer1: endpoint@1 {
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reg = <1>;
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remote-endpoint = <&mixer1_out_tcon_top>;
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};
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};
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tcon_top_mixer1_out: port@3 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <3>;
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tcon_top_mixer1_out_tcon_lcd0: endpoint@0 {
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reg = <0>;
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};
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tcon_top_mixer1_out_tcon_lcd1: endpoint@1 {
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reg = <1>;
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};
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tcon_top_mixer1_out_tcon_tv0: endpoint@2 {
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reg = <2>;
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remote-endpoint = <&tcon_tv0_in_tcon_top_mixer1>;
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};
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tcon_top_mixer1_out_tcon_tv1: endpoint@3 {
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reg = <3>;
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remote-endpoint = <&tcon_tv1_in_tcon_top_mixer1>;
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};
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};
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tcon_top_hdmi_in: port@4 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <4>;
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tcon_top_hdmi_in_tcon_tv0: endpoint@0 {
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reg = <0>;
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remote-endpoint = <&tcon_tv0_out_tcon_top>;
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};
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tcon_top_hdmi_in_tcon_tv1: endpoint@1 {
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reg = <1>;
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remote-endpoint = <&tcon_tv1_out_tcon_top>;
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};
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};
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tcon_top_hdmi_out: port@5 {
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reg = <5>;
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tcon_top_hdmi_out_hdmi: endpoint {
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remote-endpoint = <&hdmi_in_tcon_top>;
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};
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};
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};
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};
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...
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