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 $ref: panel-timing.yaml# 35 36additionalProperties: false 37 38examples: 39 - |+ 40 41 /* 42 * Example that specifies panel timing using minimum, typical, 43 * maximum values as commonly used in datasheet description. 44 * timing1 is the native-mode. 45 */ 46 display-timings { 47 native-mode = <&timing1>; 48 timing0 { 49 /* 1920x1080p24 */ 50 clock-frequency = <148500000>; 51 hactive = <1920>; 52 vactive = <1080>; 53 hsync-len = <0 44 60>; 54 hfront-porch = <80 88 95>; 55 hback-porch = <100 148 160>; 56 vfront-porch = <0 4 6>; 57 vback-porch = <0 36 50>; 58 vsync-len = <0 5 6>; 59 }; 60 timing1 { 61 /* 1920x1080p24 */ 62 clock-frequency = <52000000>; 63 hactive = <1920>; 64 vactive = <1080>; 65 hfront-porch = <25>; 66 hback-porch = <25>; 67 hsync-len = <0 25 25>; 68 vback-porch = <2>; 69 vfront-porch = <2>; 70 vsync-len = <2>; 71 hsync-active = <1>; 72 pixelclk-active = <1>; 73 }; 74 }; 75 76... 77