Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/bridge/ite,it66121.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: ITE it66121 HDMI bridge
   8
   9 maintainers:
  10   - Phong LE <ple@baylibre.com>
  11   - Neil Armstrong <neil.armstrong@linaro.org>
  12
  13 description: |
  14   The IT66121 is a high-performance and low-power single channel HDMI
  15   transmitter, fully compliant with HDMI 1.3a, HDCP 1.2 and backward compatible
  16   to DVI 1.0 specifications.
  17
  18 properties:
  19   compatible:
  20     enum:
  21       - ite,it66121
  22       - ite,it6610
  23
  24   reg:
  25     maxItems: 1
  26
  27   reset-gpios:
  28     maxItems: 1
  29     description: GPIO connected to active low reset
  30
  31   vrf12-supply:
  32     description: Regulator for 1.2V analog core power.
  33
  34   vcn33-supply:
  35     description: Regulator for 3.3V digital core power.
  36
  37   vcn18-supply:
  38     description: Regulator for 1.8V IO core power.
  39
  40   interrupts:
  41     maxItems: 1
  42
  43   "#sound-dai-cells":
  44     const: 0
  45
  46   ports:
  47     $ref: /schemas/graph.yaml#/properties/ports
  48
  49     properties:
  50       port@0:
  51         $ref: /schemas/graph.yaml#/$defs/port-base
  52         unevaluatedProperties: false
  53         description: DPI input port.
  54
  55         properties:
  56           endpoint:
  57             $ref: /schemas/graph.yaml#/$defs/endpoint-base
  58             unevaluatedProperties: false
  59
  60             properties:
  61               bus-width:
  62                 description:
  63                   Endpoint bus width.
  64                 enum:
  65                   - 12  # 12 data lines connected and dual-edge mode
  66                   - 24  # 24 data lines connected and single-edge mode
  67                 default: 24
  68
  69       port@1:
  70         $ref: /schemas/graph.yaml#/properties/port
  71         description: HDMI Connector port.
  72
  73     required:
  74       - port@0
  75       - port@1
  76
  77 required:
  78   - compatible
  79   - reg
  80   - reset-gpios
  81   - vrf12-supply
  82   - vcn33-supply
  83   - vcn18-supply
  84   - interrupts
  85   - ports
  86
  87 additionalProperties: false
  88
  89 examples:
  90   - |
  91     #include <dt-bindings/interrupt-controller/irq.h>
  92     #include <dt-bindings/gpio/gpio.h>
  93     i2c {
  94         #address-cells = <1>;
  95         #size-cells = <0>;
  96
  97         it66121hdmitx: hdmitx@4c {
  98             compatible = "ite,it66121";
  99             pinctrl-names = "default";
 100             pinctrl-0 = <&ite_pins_default>;
 101             vcn33-supply = <&mt6358_vcn33_wifi_reg>;
 102             vcn18-supply = <&mt6358_vcn18_reg>;
 103             vrf12-supply = <&mt6358_vrf12_reg>;
 104             reset-gpios = <&pio 160 GPIO_ACTIVE_LOW>;
 105             interrupt-parent = <&pio>;
 106             interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
 107             reg = <0x4c>;
 108
 109             ports {
 110                 #address-cells = <1>;
 111                 #size-cells = <0>;
 112
 113                 port@0 {
 114                     reg = <0>;
 115                     it66121_in: endpoint {
 116                         bus-width = <12>;
 117                         remote-endpoint = <&display_out>;
 118                     };
 119                 };
 120
 121                 port@1 {
 122                     reg = <1>;
 123                     hdmi_conn_out: endpoint {
 124                         remote-endpoint = <&hdmi_conn_in>;
 125                     };
 126                 };
 127             };
 128         };
 129     };