1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/display/allwinner,sun9i-a80-deu.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Allwinner A80 Detail Enhancement Unit
8
9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
12
13 description: |
14 The DEU (Detail Enhancement Unit), found in the Allwinner A80 SoC,
15 can sharpen the display content in both luma and chroma channels.
16
17 properties:
18 compatible:
19 const: allwinner,sun9i-a80-deu
20
21 reg:
22 maxItems: 1
23
24 interrupts:
25 maxItems: 1
26
27 clocks:
28 items:
29 - description: The DEU interface clock
30 - description: The DEU module clock
31 - description: The DEU DRAM clock
32
33 clock-names:
34 items:
35 - const: ahb
36 - const: mod
37 - const: ram
38
39 resets:
40 maxItems: 1
41
42 ports:
43 $ref: /schemas/graph.yaml#/properties/ports
44
45 properties:
46 port@0:
47 $ref: /schemas/graph.yaml#/properties/port
48 description: |
49 Input endpoints of the controller.
50
51 port@1:
52 $ref: /schemas/graph.yaml#/properties/port
53 description: |
54 Output endpoints of the controller.
55
56 required:
57 - port@0
58 - port@1
59
60 required:
61 - compatible
62 - reg
63 - interrupts
64 - clocks
65 - clock-names
66 - resets
67 - ports
68
69 additionalProperties: false
70
71 examples:
72 - |
73 #include <dt-bindings/interrupt-controller/arm-gic.h>
74
75 #include <dt-bindings/clock/sun9i-a80-de.h>
76 #include <dt-bindings/reset/sun9i-a80-de.h>
77
78 deu0: deu@3300000 {
79 compatible = "allwinner,sun9i-a80-deu";
80 reg = <0x03300000 0x40000>;
81 interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
82 clocks = <&de_clocks CLK_BUS_DEU0>,
83 <&de_clocks CLK_IEP_DEU0>,
84 <&de_clocks CLK_DRAM_DEU0>;
85 clock-names = "ahb",
86 "mod",
87 "ram";
88 resets = <&de_clocks RST_DEU0>;
89
90 ports {
91 #address-cells = <1>;
92 #size-cells = <0>;
93
94 deu0_in: port@0 {
95 reg = <0>;
96
97 deu0_in_fe0: endpoint {
98 remote-endpoint = <&fe0_out_deu0>;
99 };
100 };
101
102 deu0_out: port@1 {
103 #address-cells = <1>;
104 #size-cells = <0>;
105 reg = <1>;
106
107 deu0_out_be0: endpoint@0 {
108 reg = <0>;
109 remote-endpoint = <&be0_in_deu0>;
110 };
111
112 deu0_out_be1: endpoint@1 {
113 reg = <1>;
114 remote-endpoint = <&be1_in_deu0>;
115 };
116 };
117 };
118 };
119
120 ...
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