system/arm/dt/platforms/display.dtsi

   1 /*
   2  * Copyright (c) 2015-2016, 2019, 2021 ARM Limited
   3  * All rights reserved
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 / {
  30         virt-encoder {
  31                 compatible = "drm,virtual-encoder";
  32                 port {
  33                         dp0_virt_input: endpoint@0 {
  34                                 remote-endpoint = <&dp0_output>;
  35                         };
  36                 };
  37
  38                 display-timings {
  39                         native-mode = <&timing0>;
  40
  41                         timing0: timing_1080p60 {
  42                                 /* 1920x1080-60 */
  43                                 clock-frequency = <148500000>;
  44                                 hactive = <1920>;
  45                                 vactive = <1080>;
  46                                 hfront-porch = <148>;
  47                                 hback-porch = <88>;
  48                                 hsync-len = <44>;
  49                                 vfront-porch = <36>;
  50                                 vback-porch = <4>;
  51                                 vsync-len = <5>;
  52                         };
  53                 };
  54         };
  55 };
  56
  57 &dp0 {
  58         status = "ok";
  59
  60         port {
  61                 dp0_output: endpoint@0 {
  62                         remote-endpoint = <&dp0_virt_input>;
  63                 };
  64         };
  65 };