| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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/ite,it6505.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: ITE it6505 |
| 8 | |
| 9 | maintainers: |
| 10 | - Allen Chen <allen.chen@ite.com.tw> |
| 11 | |
| Tom Rini | 762f85b | 2024-07-20 11:15:10 -0600 | [diff] [blame] | 12 | allOf: |
| 13 | - $ref: /schemas/sound/dai-common.yaml# |
| 14 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 15 | description: | |
| 16 | The IT6505 is a high-performance DisplayPort 1.1a transmitter, |
| 17 | fully compliant with DisplayPort 1.1a, HDCP 1.3 specifications. |
| 18 | The IT6505 supports color depth of up to 36 bits (12 bits/color) |
| 19 | and ensures robust transmission of high-quality uncompressed video |
| 20 | content, along with uncompressed and compressed digital audio content. |
| 21 | |
| 22 | Aside from the various video output formats supported, the IT6505 |
| 23 | also encodes and transmits up to 8 channels of I2S digital audio, |
| 24 | with sampling rate up to 192kHz and sample size up to 24 bits. |
| 25 | In addition, an S/PDIF input port takes in compressed audio of up to |
| 26 | 192kHz frame rate. |
| 27 | |
| 28 | Each IT6505 chip comes preprogrammed with an unique HDCP key, |
| 29 | in compliance with the HDCP 1.3 standard so as to provide secure |
| 30 | transmission of high-definition content. Users of the IT6505 need not |
| 31 | purchase any HDCP keys or ROMs. |
| 32 | |
| 33 | properties: |
| 34 | compatible: |
| 35 | const: ite,it6505 |
| 36 | |
| 37 | reg: |
| 38 | maxItems: 1 |
| 39 | |
| 40 | ovdd-supply: |
| 41 | description: I/O voltage |
| 42 | |
| 43 | pwr18-supply: |
| 44 | description: core voltage |
| 45 | |
| 46 | interrupts: |
| 47 | maxItems: 1 |
| 48 | description: interrupt specifier of INT pin |
| 49 | |
| 50 | reset-gpios: |
| 51 | maxItems: 1 |
| 52 | description: gpio specifier of RESET pin |
| 53 | |
| 54 | extcon: |
| 55 | maxItems: 1 |
| 56 | description: extcon specifier for the Power Delivery |
| 57 | |
| Tom Rini | 762f85b | 2024-07-20 11:15:10 -0600 | [diff] [blame] | 58 | "#sound-dai-cells": |
| 59 | const: 0 |
| 60 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 61 | ports: |
| 62 | $ref: /schemas/graph.yaml#/properties/ports |
| 63 | |
| 64 | properties: |
| 65 | port@0: |
| 66 | $ref: /schemas/graph.yaml#/$defs/port-base |
| 67 | unevaluatedProperties: false |
| 68 | description: A port node pointing to DPI host port node |
| 69 | |
| 70 | properties: |
| 71 | endpoint: |
| 72 | $ref: /schemas/graph.yaml#/$defs/endpoint-base |
| 73 | unevaluatedProperties: false |
| 74 | |
| 75 | properties: |
| 76 | link-frequencies: |
| 77 | minItems: 1 |
| 78 | maxItems: 1 |
| 79 | description: Allowed max link frequencies in Hz |
| 80 | |
| 81 | port@1: |
| 82 | $ref: /schemas/graph.yaml#/$defs/port-base |
| 83 | unevaluatedProperties: false |
| 84 | description: Video port for DP output |
| 85 | |
| 86 | properties: |
| 87 | endpoint: |
| 88 | $ref: /schemas/graph.yaml#/$defs/endpoint-base |
| 89 | unevaluatedProperties: false |
| 90 | |
| 91 | properties: |
| 92 | data-lanes: |
| 93 | minItems: 1 |
| 94 | uniqueItems: true |
| 95 | items: |
| 96 | - enum: [ 0, 1 ] |
| 97 | - const: 1 |
| 98 | - const: 2 |
| 99 | - const: 3 |
| 100 | |
| 101 | required: |
| 102 | - port@0 |
| 103 | - port@1 |
| 104 | |
| 105 | required: |
| 106 | - compatible |
| 107 | - ovdd-supply |
| 108 | - pwr18-supply |
| 109 | - interrupts |
| 110 | - reset-gpios |
| 111 | - extcon |
| 112 | - ports |
| 113 | |
| Tom Rini | 762f85b | 2024-07-20 11:15:10 -0600 | [diff] [blame] | 114 | unevaluatedProperties: false |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 115 | |
| 116 | examples: |
| 117 | - | |
| 118 | #include <dt-bindings/interrupt-controller/irq.h> |
| 119 | |
| 120 | i2c { |
| 121 | #address-cells = <1>; |
| 122 | #size-cells = <0>; |
| 123 | |
| 124 | dp-bridge@5c { |
| 125 | compatible = "ite,it6505"; |
| 126 | interrupts = <152 IRQ_TYPE_EDGE_FALLING 152 0>; |
| 127 | reg = <0x5c>; |
| 128 | pinctrl-names = "default"; |
| 129 | pinctrl-0 = <&it6505_pins>; |
| 130 | ovdd-supply = <&mt6358_vsim1_reg>; |
| 131 | pwr18-supply = <&it6505_pp18_reg>; |
| 132 | reset-gpios = <&pio 179 1>; |
| 133 | extcon = <&usbc_extcon>; |
| 134 | |
| 135 | ports { |
| 136 | #address-cells = <1>; |
| 137 | #size-cells = <0>; |
| 138 | |
| 139 | port@0 { |
| 140 | reg = <0>; |
| 141 | it6505_in: endpoint { |
| 142 | remote-endpoint = <&dpi_out>; |
| 143 | link-frequencies = /bits/ 64 <150000000>; |
| 144 | }; |
| 145 | }; |
| 146 | |
| 147 | port@1 { |
| 148 | reg = <1>; |
| 149 | it6505_out: endpoint { |
| 150 | remote-endpoint = <&dp_in>; |
| 151 | data-lanes = <0 1>; |
| 152 | }; |
| 153 | }; |
| 154 | }; |
| 155 | }; |
| 156 | }; |