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
  7title: ITE it66121 HDMI bridge
  8
  9maintainers:
 10  - Phong LE <ple@baylibre.com>
 11  - Neil Armstrong <neil.armstrong@linaro.org>
 12
 13description: |
 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
 18properties:
 19  compatible:
 20    enum:
 21      - ite,it66121
 22      - ite,it66122
 23      - ite,it6610
 24
 25  reg:
 26    maxItems: 1
 27
 28  reset-gpios:
 29    maxItems: 1
 30    description: GPIO connected to active low reset
 31
 32  vrf12-supply:
 33    description: Regulator for 1.2V analog core power.
 34
 35  vcn33-supply:
 36    description: Regulator for 3.3V digital core power.
 37
 38  vcn18-supply:
 39    description: Regulator for 1.8V IO core power.
 40
 41  interrupts:
 42    maxItems: 1
 43
 44  "#sound-dai-cells":
 45    const: 0
 46
 47  ports:
 48    $ref: /schemas/graph.yaml#/properties/ports
 49
 50    properties:
 51      port@0:
 52        $ref: /schemas/graph.yaml#/$defs/port-base
 53        unevaluatedProperties: false
 54        description: DPI input port.
 55
 56        properties:
 57          endpoint:
 58            $ref: /schemas/graph.yaml#/$defs/endpoint-base
 59            unevaluatedProperties: false
 60
 61            properties:
 62              bus-width:
 63                description:
 64                  Endpoint bus width.
 65                enum:
 66                  - 12  # 12 data lines connected and dual-edge mode
 67                  - 24  # 24 data lines connected and single-edge mode
 68                default: 24
 69
 70      port@1:
 71        $ref: /schemas/graph.yaml#/properties/port
 72        description: HDMI Connector port.
 73
 74    required:
 75      - port@0
 76      - port@1
 77
 78required:
 79  - compatible
 80  - reg
 81  - reset-gpios
 82  - vrf12-supply
 83  - vcn33-supply
 84  - vcn18-supply
 85  - interrupts
 86  - ports
 87
 88allOf:
 89  - $ref: /schemas/sound/dai-common.yaml#
 90
 91unevaluatedProperties: false
 92
 93examples:
 94  - |
 95    #include <dt-bindings/interrupt-controller/irq.h>
 96    #include <dt-bindings/gpio/gpio.h>
 97    i2c {
 98        #address-cells = <1>;
 99        #size-cells = <0>;
100
101        it66121hdmitx: hdmitx@4c {
102            compatible = "ite,it66121";
103            pinctrl-names = "default";
104            pinctrl-0 = <&ite_pins_default>;
105            vcn33-supply = <&mt6358_vcn33_wifi_reg>;
106            vcn18-supply = <&mt6358_vcn18_reg>;
107            vrf12-supply = <&mt6358_vrf12_reg>;
108            reset-gpios = <&pio 160 GPIO_ACTIVE_LOW>;
109            interrupt-parent = <&pio>;
110            interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
111            reg = <0x4c>;
112
113            ports {
114                #address-cells = <1>;
115                #size-cells = <0>;
116
117                port@0 {
118                    reg = <0>;
119                    it66121_in: endpoint {
120                        bus-width = <12>;
121                        remote-endpoint = <&display_out>;
122                    };
123                };
124
125                port@1 {
126                    reg = <1>;
127                    hdmi_conn_out: endpoint {
128                        remote-endpoint = <&hdmi_conn_in>;
129                    };
130                };
131            };
132        };
133    };