allwinner,sun6i-a31-drc.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/display/allwinner,sun6i-a31-drc.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Allwinner A31 Dynamic Range Controller Device Tree Bindings
    8 
    9 maintainers:
   10   - Chen-Yu Tsai <wens@csie.org>
   11   - Maxime Ripard <mripard@kernel.org>
   12 
   13 description: |
   14   The DRC (Dynamic Range Controller) allows to dynamically adjust
   15   pixel brightness/contrast based on histogram measurements for LCD
   16   content adaptive backlight control.
   17 
   18 properties:
   19   compatible:
   20     enum:
   21       - allwinner,sun6i-a31-drc
   22       - allwinner,sun6i-a31s-drc
   23       - allwinner,sun8i-a23-drc
   24       - allwinner,sun8i-a33-drc
   25       - allwinner,sun9i-a80-drc
   26 
   27   reg:
   28     maxItems: 1
   29 
   30   interrupts:
   31     maxItems: 1
   32 
   33   clocks:
   34     items:
   35       - description: The DRC interface clock
   36       - description: The DRC module clock
   37       - description: The DRC DRAM clock
   38 
   39   clock-names:
   40     items:
   41       - const: ahb
   42       - const: mod
   43       - const: ram
   44 
   45   resets:
   46     maxItems: 1
   47 
   48   ports:
   49     $ref: /schemas/graph.yaml#/properties/ports
   50 
   51     properties:
   52       port@0:
   53         $ref: /schemas/graph.yaml#/properties/port
   54         description: |
   55           Input endpoints of the controller.
   56 
   57       port@1:
   58         $ref: /schemas/graph.yaml#/properties/port
   59         description: |
   60           Output endpoints of the controller.
   61 
   62     required:
   63       - port@0
   64       - port@1
   65 
   66 required:
   67   - compatible
   68   - reg
   69   - interrupts
   70   - clocks
   71   - clock-names
   72   - resets
   73   - ports
   74 
   75 additionalProperties: false
   76 
   77 examples:
   78   - |
   79     #include <dt-bindings/interrupt-controller/arm-gic.h>
   80 
   81     #include <dt-bindings/clock/sun6i-a31-ccu.h>
   82     #include <dt-bindings/reset/sun6i-a31-ccu.h>
   83 
   84     drc0: drc@1e70000 {
   85         compatible = "allwinner,sun6i-a31-drc";
   86         reg = <0x01e70000 0x10000>;
   87         interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
   88         clocks = <&ccu CLK_AHB1_DRC0>, <&ccu CLK_IEP_DRC0>,
   89                  <&ccu CLK_DRAM_DRC0>;
   90         clock-names = "ahb", "mod",
   91                       "ram";
   92         resets = <&ccu RST_AHB1_DRC0>;
   93 
   94         ports {
   95             #address-cells = <1>;
   96             #size-cells = <0>;
   97 
   98             drc0_in: port@0 {
   99                 reg = <0>;
  100 
  101                 drc0_in_be0: endpoint {
  102                     remote-endpoint = <&be0_out_drc0>;
  103                 };
  104             };
  105 
  106             drc0_out: port@1 {
  107                 #address-cells = <1>;
  108                 #size-cells = <0>;
  109                 reg = <1>;
  110 
  111                 drc0_out_tcon0: endpoint@0 {
  112                     reg = <0>;
  113                     remote-endpoint = <&tcon0_in_drc0>;
  114                 };
  115 
  116                 drc0_out_tcon1: endpoint@1 {
  117                     reg = <1>;
  118                     remote-endpoint = <&tcon1_in_drc0>;
  119                 };
  120             };
  121         };
  122     };
  123 
  124 
  125 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/display/allwinner,sun6i-a31-drc.yaml

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sys/contrib/device-tree/Bindings/display/allwinner,sun6i-a31-drc.yaml