0001 # SPDX-License-Identifier: GPL-2.0
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/bus/allwinner,sun50i-a64-de2.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Allwinner A64 Display Engine Bus Device Tree Bindings
0008
0009 maintainers:
0010 - Chen-Yu Tsai <wens@csie.org>
0011 - Maxime Ripard <mripard@kernel.org>
0012
0013 properties:
0014 $nodename:
0015 pattern: "^bus(@[0-9a-f]+)?$"
0016
0017 "#address-cells":
0018 const: 1
0019
0020 "#size-cells":
0021 const: 1
0022
0023 compatible:
0024 oneOf:
0025 - const: allwinner,sun50i-a64-de2
0026 - items:
0027 - const: allwinner,sun50i-h6-de3
0028 - const: allwinner,sun50i-a64-de2
0029
0030 reg:
0031 maxItems: 1
0032
0033 allwinner,sram:
0034 description:
0035 The SRAM that needs to be claimed to access the display engine
0036 bus.
0037 $ref: /schemas/types.yaml#/definitions/phandle-array
0038 items:
0039 - items:
0040 - description: phandle to SRAM
0041 - description: register value for device
0042
0043 ranges: true
0044
0045 patternProperties:
0046 # All other properties should be child nodes with unit-address and 'reg'
0047 "^[a-zA-Z][a-zA-Z0-9,+\\-._]{0,63}@[0-9a-fA-F]+$":
0048 type: object
0049 properties:
0050 reg:
0051 maxItems: 1
0052
0053 required:
0054 - reg
0055
0056 required:
0057 - compatible
0058 - reg
0059 - "#address-cells"
0060 - "#size-cells"
0061 - ranges
0062 - allwinner,sram
0063
0064 additionalProperties: false
0065
0066 examples:
0067 - |
0068 bus@1000000 {
0069 compatible = "allwinner,sun50i-a64-de2";
0070 reg = <0x1000000 0x400000>;
0071 allwinner,sram = <&de2_sram 1>;
0072 #address-cells = <1>;
0073 #size-cells = <1>;
0074 ranges = <0 0x1000000 0x400000>;
0075
0076 display_clocks: clock@0 {
0077 compatible = "allwinner,sun50i-a64-de2-clk";
0078 reg = <0x0 0x100000>;
0079 clocks = <&ccu 52>, <&ccu 99>;
0080 clock-names = "bus", "mod";
0081 resets = <&ccu 30>;
0082 #clock-cells = <1>;
0083 #reset-cells = <1>;
0084 };
0085 };
0086
0087 ...
