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 type: object 45 description: 46 A node containing DSI input & output port nodes with endpoint 47 definitions as documented in 48 Documentation/devicetree/bindings/media/video-interfaces.txt 49 Documentation/devicetree/bindings/graph.txt 50 properties: 51 '#address-cells': 52 const: 1 53 54 '#size-cells': 55 const: 0 56 57 port@0: 58 type: object 59 description: | 60 Video port for DSI input 61 62 port@1: 63 type: object 64 description: | 65 Video port for eDP output (panel or connector). 66 67 required: 68 - port@0 69 70 additionalProperties: false 71 72required: 73 - compatible 74 - reg 75 - powerdown-gpios 76 - reset-gpios 77 - vdd12-supply 78 - vdd33-supply 79 - ports 80 81additionalProperties: false 82 83examples: 84 - | 85 #include <dt-bindings/gpio/gpio.h> 86 i2c0 { 87 #address-cells = <1>; 88 #size-cells = <0>; 89 90 ps8640: edp-bridge@18 { 91 compatible = "parade,ps8640"; 92 reg = <0x18>; 93 powerdown-gpios = <&pio 116 GPIO_ACTIVE_LOW>; 94 reset-gpios = <&pio 115 GPIO_ACTIVE_LOW>; 95 vdd12-supply = <&ps8640_fixed_1v2>; 96 vdd33-supply = <&mt6397_vgp2_reg>; 97 98 ports { 99 #address-cells = <1>; 100 #size-cells = <0>; 101 102 port@0 { 103 reg = <0>; 104 ps8640_in: endpoint { 105 remote-endpoint = <&dsi0_out>; 106 }; 107 }; 108 109 port@1 { 110 reg = <1>; 111 ps8640_out: endpoint { 112 remote-endpoint = <&panel_in>; 113 }; 114 }; 115 }; 116 }; 117 }; 118 119