1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/display/panel/display-timings.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: display timings bindings 8 9maintainers: 10 - Thierry Reding <thierry.reding@gmail.com> 11 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> 12 - Sam Ravnborg <sam@ravnborg.org> 13 14description: | 15 A display panel may be able to handle several display timings, 16 with different resolutions. 17 The display-timings node makes it possible to specify the timings 18 and to specify the timing that is native for the display. 19 20properties: 21 $nodename: 22 const: display-timings 23 24 native-mode: 25 $ref: /schemas/types.yaml#/definitions/phandle 26 description: | 27 The default display timing is the one specified as native-mode. 28 If no native-mode is specified then the first node is assumed 29 to be the native mode. 30 31patternProperties: 32 "^timing": 33 type: object 34 allOf: 35 - $ref: panel-timing.yaml# 36 37additionalProperties: false 38 39examples: 40 - |+ 41 42 /* 43 * Example that specifies panel timing using minimum, typical, 44 * maximum values as commonly used in datasheet description. 45 * timing1 is the native-mode. 46 */ 47 display-timings { 48 native-mode = <&timing1>; 49 timing0 { 50 /* 1920x1080p24 */ 51 clock-frequency = <148500000>; 52 hactive = <1920>; 53 vactive = <1080>; 54 hsync-len = <0 44 60>; 55 hfront-porch = <80 88 95>; 56 hback-porch = <100 148 160>; 57 vfront-porch = <0 4 6>; 58 vback-porch = <0 36 50>; 59 vsync-len = <0 5 6>; 60 }; 61 timing1 { 62 /* 1920x1080p24 */ 63 clock-frequency = <52000000>; 64 hactive = <1920>; 65 vactive = <1080>; 66 hfront-porch = <25>; 67 hback-porch = <25>; 68 hsync-len = <0 25 25>; 69 vback-porch = <2>; 70 vfront-porch = <2>; 71 vsync-len = <2>; 72 hsync-active = <1>; 73 pixelclk-active = <1>; 74 }; 75 }; 76 77... 78