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 7title: ITE it6505 Device Tree Bindings 8 9maintainers: 10 - Allen Chen <allen.chen@ite.com.tw> 11 12description: | 13 The IT6505 is a high-performance DisplayPort 1.1a transmitter, 14 fully compliant with DisplayPort 1.1a, HDCP 1.3 specifications. 15 The IT6505 supports color depth of up to 36 bits (12 bits/color) 16 and ensures robust transmission of high-quality uncompressed video 17 content, along with uncompressed and compressed digital audio content. 18 19 Aside from the various video output formats supported, the IT6505 20 also encodes and transmits up to 8 channels of I2S digital audio, 21 with sampling rate up to 192kHz and sample size up to 24 bits. 22 In addition, an S/PDIF input port takes in compressed audio of up to 23 192kHz frame rate. 24 25 Each IT6505 chip comes preprogrammed with an unique HDCP key, 26 in compliance with the HDCP 1.3 standard so as to provide secure 27 transmission of high-definition content. Users of the IT6505 need not 28 purchase any HDCP keys or ROMs. 29 30properties: 31 compatible: 32 const: ite,it6505 33 34 reg: 35 maxItems: 1 36 37 ovdd-supply: 38 maxItems: 1 39 description: I/O voltage 40 41 pwr18-supply: 42 maxItems: 1 43 description: core voltage 44 45 interrupts: 46 maxItems: 1 47 description: interrupt specifier of INT pin 48 49 reset-gpios: 50 maxItems: 1 51 description: gpio specifier of RESET pin 52 53 extcon: 54 maxItems: 1 55 description: extcon specifier for the Power Delivery 56 57 port: 58 type: object 59 description: A port node pointing to DPI host port node 60 61required: 62 - compatible 63 - ovdd-supply 64 - pwr18-supply 65 - interrupts 66 - reset-gpios 67 - extcon 68 69additionalProperties: false 70 71examples: 72 - | 73 #include <dt-bindings/interrupt-controller/irq.h> 74 75 i2c { 76 #address-cells = <1>; 77 #size-cells = <0>; 78 79 dp-bridge@5c { 80 compatible = "ite,it6505"; 81 interrupts = <152 IRQ_TYPE_EDGE_FALLING 152 0>; 82 reg = <0x5c>; 83 pinctrl-names = "default"; 84 pinctrl-0 = <&it6505_pins>; 85 ovdd-supply = <&mt6358_vsim1_reg>; 86 pwr18-supply = <&it6505_pp18_reg>; 87 reset-gpios = <&pio 179 1>; 88 extcon = <&usbc_extcon>; 89 90 port { 91 it6505_in: endpoint { 92 remote-endpoint = <&dpi_out>; 93 }; 94 }; 95 }; 96 }; 97