mediatek,mt8195-hdmi.yaml

  1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/display/mediatek/mediatek,mt8195-hdmi.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: MediaTek MT8195 series HDMI-TX Encoder
  8
  9maintainers:
 10  - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
 11  - CK Hu <ck.hu@mediatek.com>
 12
 13description:
 14  The MediaTek HDMI-TX v2 encoder can generate HDMI format data based on
 15  the HDMI Specification 2.0b.
 16
 17properties:
 18  compatible:
 19    enum:
 20      - mediatek,mt8188-hdmi-tx
 21      - mediatek,mt8195-hdmi-tx
 22
 23  reg:
 24    maxItems: 1
 25
 26  interrupts:
 27    maxItems: 1
 28
 29  clocks:
 30    items:
 31      - description: HDMI Peripheral Bus (APB) clock
 32      - description: HDCP and HDMI_TOP clock
 33      - description: HDCP, HDMI_TOP and HDMI Audio reference clock
 34      - description: VPP HDMI Split clock
 35
 36  clock-names:
 37    items:
 38      - const: bus
 39      - const: hdcp
 40      - const: hdcp24m
 41      - const: hdmi-split
 42
 43  i2c:
 44    type: object
 45    $ref: /schemas/display/mediatek/mediatek,mt8195-hdmi-ddc.yaml
 46    unevaluatedProperties: false
 47    description: HDMI DDC I2C controller
 48
 49  phys:
 50    maxItems: 1
 51    description: PHY providing clocking TMDS and pixel to controller
 52
 53  phy-names:
 54    items:
 55      - const: hdmi
 56
 57  power-domains:
 58    maxItems: 1
 59
 60  '#sound-dai-cells':
 61    const: 1
 62
 63  ports:
 64    $ref: /schemas/graph.yaml#/properties/ports
 65
 66    properties:
 67      port@0:
 68        $ref: /schemas/graph.yaml#/properties/port
 69        description:
 70          Input port, usually connected to the output port of a DPI
 71
 72      port@1:
 73        $ref: /schemas/graph.yaml#/properties/port
 74        description:
 75          Output port that must be connected either to the input port of
 76          a HDMI connector node containing a ddc-i2c-bus, or to the input
 77          port of an attached bridge chip, such as a SlimPort transmitter.
 78
 79    required:
 80      - port@0
 81      - port@1
 82
 83required:
 84  - compatible
 85  - reg
 86  - interrupts
 87  - clocks
 88  - clock-names
 89  - power-domains
 90  - phys
 91  - phy-names
 92  - ports
 93
 94allOf:
 95  - $ref: /schemas/sound/dai-common.yaml#
 96
 97additionalProperties: false
 98
 99examples:
100  - |
101    #include <dt-bindings/clock/mt8195-clk.h>
102    #include <dt-bindings/interrupt-controller/arm-gic.h>
103    #include <dt-bindings/power/mt8195-power.h>
104
105    soc {
106        #address-cells = <2>;
107        #size-cells = <2>;
108
109        hdmi@1c300000 {
110            compatible = "mediatek,mt8195-hdmi-tx";
111            reg = <0 0x1c300000 0 0x1000>;
112            clocks = <&topckgen CLK_TOP_HDMI_APB>,
113                     <&topckgen CLK_TOP_HDCP>,
114                     <&topckgen CLK_TOP_HDCP_24M>,
115                     <&vppsys1 CLK_VPP1_VPP_SPLIT_HDMI>;
116            clock-names = "bus", "hdcp", "hdcp24m", "hdmi-split";
117            interrupts = <GIC_SPI 677 IRQ_TYPE_LEVEL_HIGH 0>;
118            phys = <&hdmi_phy>;
119            phy-names = "hdmi";
120            power-domains = <&spm MT8195_POWER_DOMAIN_HDMI_TX>;
121            pinctrl-names = "default";
122            pinctrl-0 = <&hdmi_pins>;
123            #sound-dai-cells = <1>;
124
125            hdmitx_ddc: i2c {
126                compatible = "mediatek,mt8195-hdmi-ddc";
127                clocks = <&clk26m>;
128            };
129
130            ports {
131                #address-cells = <1>;
132                #size-cells = <0>;
133
134                port@0 {
135                    reg = <0>;
136
137                    hdmi_in: endpoint {
138                        remote-endpoint = <&dpi1_out>;
139                    };
140                };
141
142                port@1 {
143                    reg = <1>;
144
145                    hdmi_out: endpoint {
146                        remote-endpoint = <&hdmi_connector_in>;
147                    };
148                };
149            };
150        };
151    };