| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-frontend.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Allwinner A10 Display Engine Frontend Device Tree Bindings |
| |
| maintainers: |
| - Chen-Yu Tsai <wens@csie.org> |
| - Maxime Ripard <mripard@kernel.org> |
| |
| description: | |
| The display engine frontend does formats conversion, scaling, |
| deinterlacing and color space conversion. |
| |
| properties: |
| compatible: |
| enum: |
| - allwinner,sun4i-a10-display-frontend |
| - allwinner,sun5i-a13-display-frontend |
| - allwinner,sun6i-a31-display-frontend |
| - allwinner,sun7i-a20-display-frontend |
| - allwinner,sun8i-a23-display-frontend |
| - allwinner,sun8i-a33-display-frontend |
| - allwinner,sun9i-a80-display-frontend |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| items: |
| - description: The frontend interface clock |
| - description: The frontend module clock |
| - description: The frontend DRAM clock |
| |
| clock-names: |
| items: |
| - const: ahb |
| - const: mod |
| - const: ram |
| |
| # FIXME: This should be made required eventually once every SoC will |
| # have the MBUS declared. |
| interconnects: |
| maxItems: 1 |
| |
| # FIXME: This should be made required eventually once every SoC will |
| # have the MBUS declared. |
| interconnect-names: |
| const: dma-mem |
| |
| resets: |
| maxItems: 1 |
| |
| ports: |
| type: object |
| description: | |
| A ports node with endpoint definitions as defined in |
| Documentation/devicetree/bindings/media/video-interfaces.txt. |
| |
| properties: |
| "#address-cells": |
| const: 1 |
| |
| "#size-cells": |
| const: 0 |
| |
| port@0: |
| type: object |
| description: | |
| Input endpoints of the controller. |
| |
| port@1: |
| type: object |
| description: | |
| Output endpoints of the controller. |
| |
| required: |
| - "#address-cells" |
| - "#size-cells" |
| - port@1 |
| |
| additionalProperties: false |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - clocks |
| - clock-names |
| - resets |
| - ports |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/clock/sun4i-a10-ccu.h> |
| #include <dt-bindings/reset/sun4i-a10-ccu.h> |
| |
| fe0: display-frontend@1e00000 { |
| compatible = "allwinner,sun4i-a10-display-frontend"; |
| reg = <0x01e00000 0x20000>; |
| interrupts = <47>; |
| clocks = <&ccu CLK_AHB_DE_FE0>, <&ccu CLK_DE_FE0>, |
| <&ccu CLK_DRAM_DE_FE0>; |
| clock-names = "ahb", "mod", |
| "ram"; |
| resets = <&ccu RST_DE_FE0>; |
| |
| ports { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| fe0_out: port@1 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <1>; |
| |
| fe0_out_be0: endpoint@0 { |
| reg = <0>; |
| remote-endpoint = <&be0_in_fe0>; |
| }; |
| |
| fe0_out_be1: endpoint@1 { |
| reg = <1>; |
| remote-endpoint = <&be1_in_fe0>; |
| }; |
| }; |
| }; |
| }; |
| |
| |
| ... |
