Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml

   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 Device Tree Bindings
   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 ...