bindings/display/bridge/parade,ps8622.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/bridge/parade,ps8622.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Parade PS8622/PS8625 DisplayPort to LVDS Converter
   8
   9 maintainers:
  10   - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
  11
  12 properties:
  13   compatible:
  14     enum:
  15       - parade,ps8622
  16       - parade,ps8625
  17
  18   reg:
  19     maxItems: 1
  20
  21   lane-count:
  22     $ref: /schemas/types.yaml#/definitions/uint32
  23     enum: [1, 2]
  24     description: Number of DP lanes to use.
  25
  26   use-external-pwm:
  27     type: boolean
  28     description: Backlight will be controlled by an external PWM.
  29
  30   reset-gpios:
  31     maxItems: 1
  32     description: GPIO connected to RST_ pin.
  33
  34   sleep-gpios:
  35     maxItems: 1
  36     description: GPIO connected to PD_ pin.
  37
  38   vdd12-supply: true
  39
  40   ports:
  41     $ref: /schemas/graph.yaml#/properties/ports
  42
  43     properties:
  44       port@0:
  45         $ref: /schemas/graph.yaml#/properties/port
  46         description: Video port for LVDS output.
  47
  48       port@1:
  49         $ref: /schemas/graph.yaml#/properties/port
  50         description: Video port for DisplayPort input.
  51
  52     required:
  53       - port@0
  54       - port@1
  55
  56 required:
  57   - compatible
  58   - reg
  59   - reset-gpios
  60   - sleep-gpios
  61   - ports
  62
  63 allOf:
  64   - if:
  65       properties:
  66         compatible:
  67           const: parade,ps8622
  68     then:
  69       properties:
  70         lane-count:
  71           const: 1
  72     else:
  73       properties:
  74         lane-count:
  75           const: 2
  76
  77 additionalProperties: false
  78
  79 examples:
  80   - |
  81     #include <dt-bindings/gpio/gpio.h>
  82     i2c {
  83         #address-cells = <1>;
  84         #size-cells = <0>;
  85
  86         lvds-bridge@48 {
  87             compatible = "parade,ps8625";
  88             reg = <0x48>;
  89             sleep-gpios = <&gpx3 5 GPIO_ACTIVE_HIGH>;
  90             reset-gpios = <&gpy7 7 GPIO_ACTIVE_HIGH>;
  91             lane-count = <2>;
  92             use-external-pwm;
  93
  94             ports {
  95                 #address-cells = <1>;
  96                 #size-cells = <0>;
  97
  98                 port@0 {
  99                     reg = <0>;
 100
 101                     bridge_out: endpoint {
 102                         remote-endpoint = <&panel_in>;
 103                     };
 104                 };
 105
 106                 port@1 {
 107                     reg = <1>;
 108
 109                     bridge_in: endpoint {
 110                         remote-endpoint = <&dp_out>;
 111                     };
 112                 };
 113             };
 114         };
 115     };