1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/display/bridge/ps8640.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: MIPI DSI to eDP Video Format Converter Device Tree Bindings 8 9maintainers: 10 - Nicolas Boichat <drinkcat@chromium.org> 11 - Enric Balletbo i Serra <enric.balletbo@collabora.com> 12 13description: | 14 The PS8640 is a low power MIPI-to-eDP video format converter supporting 15 mobile devices with embedded panel resolutions up to 2048 x 1536. The 16 device accepts a single channel of MIPI DSI v1.1, with up to four lanes 17 plus clock, at a transmission rate up to 1.5Gbit/sec per lane. The 18 device outputs eDP v1.4, one or two lanes, at a link rate of up to 19 3.24Gbit/sec per lane. 20 21properties: 22 compatible: 23 const: parade,ps8640 24 25 reg: 26 maxItems: 1 27 description: Base I2C address of the device. 28 29 powerdown-gpios: 30 maxItems: 1 31 description: GPIO connected to active low powerdown. 32 33 reset-gpios: 34 maxItems: 1 35 description: GPIO connected to active low reset. 36 37 vdd12-supply: 38 description: Regulator for 1.2V digital core power. 39 40 vdd33-supply: 41 description: Regulator for 3.3V digital core power. 42 43 ports: 44 $ref: /schemas/graph.yaml#/properties/ports 45 46 properties: 47 port@0: 48 $ref: /schemas/graph.yaml#/properties/port 49 description: 50 Video port for DSI input 51 52 port@1: 53 $ref: /schemas/graph.yaml#/properties/port 54 description: 55 Video port for eDP output (panel or connector). 56 57 required: 58 - port@0 59 60required: 61 - compatible 62 - reg 63 - powerdown-gpios 64 - reset-gpios 65 - vdd12-supply 66 - vdd33-supply 67 - ports 68 69additionalProperties: false 70 71examples: 72 - | 73 #include <dt-bindings/gpio/gpio.h> 74 i2c0 { 75 #address-cells = <1>; 76 #size-cells = <0>; 77 78 ps8640: edp-bridge@18 { 79 compatible = "parade,ps8640"; 80 reg = <0x18>; 81 powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>; 82 reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>; 83 vdd12-supply = <&ps8640_fixed_1v2>; 84 vdd33-supply = <&mt6397_vgp2_reg>; 85 86 ports { 87 #address-cells = <1>; 88 #size-cells = <0>; 89 90 port@0 { 91 reg = <0>; 92 ps8640_in: endpoint { 93 remote-endpoint = <&dsi0_out>; 94 }; 95 }; 96 97 port@1 { 98 reg = <1>; 99 ps8640_out: endpoint { 100 remote-endpoint = <&panel_in>; 101 }; 102 }; 103 }; 104 }; 105 }; 106 107