bindings/display/bridge/ps8640.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/ps8640.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: MIPI DSI to eDP Video Format Converter
   8
   9 maintainers:
  10   - Nicolas Boichat <drinkcat@chromium.org>
  11
  12 description: |
  13   The PS8640 is a low power MIPI-to-eDP video format converter supporting
  14   mobile devices with embedded panel resolutions up to 2048 x 1536. The
  15   device accepts a single channel of MIPI DSI v1.1, with up to four lanes
  16   plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The
  17   device outputs eDP v1.4, one or two lanes, at a link rate of up to
  18   3.24Gbit/sec per lane.
  19
  20 properties:
  21   compatible:
  22     const: parade,ps8640
  23
  24   reg:
  25     maxItems: 1
  26     description: Base I2C address of the device.
  27
  28   powerdown-gpios:
  29     maxItems: 1
  30     description: GPIO connected to active low powerdown.
  31
  32   reset-gpios:
  33     maxItems: 1
  34     description: GPIO connected to active low reset.
  35
  36   vdd12-supply:
  37     description: Regulator for 1.2V digital core power.
  38
  39   vdd33-supply:
  40     description: Regulator for 3.3V digital core power.
  41
  42   aux-bus:
  43     $ref: /schemas/display/dp-aux-bus.yaml#
  44
  45   ports:
  46     $ref: /schemas/graph.yaml#/properties/ports
  47
  48     properties:
  49       port@0:
  50         $ref: /schemas/graph.yaml#/properties/port
  51         description:
  52           Video port for DSI input
  53
  54       port@1:
  55         $ref: /schemas/graph.yaml#/properties/port
  56         description:
  57           Video port for eDP output (panel or connector).
  58
  59     required:
  60       - port@0
  61
  62 required:
  63   - compatible
  64   - reg
  65   - powerdown-gpios
  66   - reset-gpios
  67   - vdd12-supply
  68   - vdd33-supply
  69   - ports
  70
  71 additionalProperties: false
  72
  73 examples:
  74   - |
  75     #include <dt-bindings/gpio/gpio.h>
  76     i2c {
  77         #address-cells = <1>;
  78         #size-cells = <0>;
  79
  80         ps8640: edp-bridge@18 {
  81             compatible = "parade,ps8640";
  82             reg = <0x18>;
  83             powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>;
  84             reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>;
  85             vdd12-supply = <&ps8640_fixed_1v2>;
  86             vdd33-supply = <&mt6397_vgp2_reg>;
  87
  88             ports {
  89                 #address-cells = <1>;
  90                 #size-cells = <0>;
  91
  92                 port@0 {
  93                     reg = <0>;
  94                     ps8640_in: endpoint {
  95                         remote-endpoint = <&dsi0_out>;
  96                     };
  97                 };
  98
  99                 port@1 {
 100                     reg = <1>;
 101                     ps8640_out: endpoint {
 102                         remote-endpoint = <&panel_in>;
 103                     };
 104                 };
 105             };
 106
 107             aux-bus {
 108                 panel {
 109                     compatible = "boe,nv133fhm-n62";
 110                     power-supply = <&pp3300_dx_edp>;
 111                     backlight = <&backlight>;
 112
 113                     port {
 114                         panel_in: endpoint {
 115                             remote-endpoint = <&ps8640_out>;
 116                         };
 117                     };
 118                 };
 119             };
 120         };
 121     };