| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/bus/allwinner,sun50i-a64-de2.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Allwinner A64 Display Engine Bus |
| |
| maintainers: |
| - Chen-Yu Tsai <wens@csie.org> |
| - Maxime Ripard <mripard@kernel.org> |
| |
| properties: |
| $nodename: |
| pattern: "^bus(@[0-9a-f]+)?$" |
| |
| "#address-cells": |
| const: 1 |
| |
| "#size-cells": |
| const: 1 |
| |
| compatible: |
| oneOf: |
| - const: allwinner,sun50i-a64-de2 |
| - items: |
| - const: allwinner,sun50i-h6-de3 |
| - const: allwinner,sun50i-a64-de2 |
| |
| reg: |
| maxItems: 1 |
| |
| allwinner,sram: |
| description: |
| The SRAM that needs to be claimed to access the display engine |
| bus. |
| $ref: /schemas/types.yaml#/definitions/phandle-array |
| items: |
| - items: |
| - description: phandle to SRAM |
| - description: register value for device |
| |
| ranges: true |
| |
| patternProperties: |
| # All other properties should be child nodes with unit-address and 'reg' |
| "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$": |
| type: object |
| properties: |
| reg: |
| maxItems: 1 |
| |
| required: |
| - reg |
| |
| required: |
| - compatible |
| - reg |
| - "#address-cells" |
| - "#size-cells" |
| - ranges |
| - allwinner,sram |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| bus@1000000 { |
| compatible = "allwinner,sun50i-a64-de2"; |
| reg = <0x1000000 0x400000>; |
| allwinner,sram = <&de2_sram 1>; |
| #address-cells = <1>; |
| #size-cells = <1>; |
| ranges = <0 0x1000000 0x400000>; |
| |
| display_clocks: clock@0 { |
| compatible = "allwinner,sun50i-a64-de2-clk"; |
| reg = <0x0 0x100000>; |
| clocks = <&ccu 52>, <&ccu 99>; |
| clock-names = "bus", "mod"; |
| resets = <&ccu 30>; |
| #clock-cells = <1>; |
| #reset-cells = <1>; |
| }; |
| }; |
| |
| ... |
