Documentation/devicetree/bindings/display/panel/simple-panel.txt

   1 Simple display panel
   2
   3 Required properties:
   4 - power-supply: regulator to provide the supply voltage
   5
   6 Optional properties:
   7 - compatible: value maybe one of the following
   8                 "simple-panel";
   9                 "simple-panel-dsi";
  10
  11 - ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
  12 - enable-gpios: GPIO pin to enable or disable the panel
  13 - backlight: phandle of the backlight device attached to the panel
  14
  15 Required properties when compatible is "simple-panel" or "simple-panel-dsi":
  16 - display-timings: see display-timing.txt for information
  17
  18 Optional properties when compatible is a dsi devices:
  19 - dsi,flags: dsi operation mode related flags
  20 - dsi,format: pixel format for video mode
  21 - dsi,lanes: number of active data lanes
  22 - reset-gpios: GPIO pin to reset the panel
  23 - reset-delay-ms: reset pulse width
  24 - panel-init-sequence: A byte stream formed by simple multiple dcs packets.
  25         byte 0: dcs data type
  26         byte 1: wait number of specified ms after dcs command transmitted
  27         byte 2: packet payload length
  28         byte 3 and beyond: number byte of payload
  29 - panel-exit-sequence: A byte stream formed by simple multiple dcs packets.
  30         byte 0: dcs data type
  31         byte 1: wait number of specified ms after dcs command transmitted
  32         byte 2: packet payload length
  33         byte 3 and beyond: number byte of payload
  34
  35 Example:
  36
  37         panel: panel {
  38                 compatible = "cptt,claa101wb01";
  39                 ddc-i2c-bus = <&panelddc>;
  40
  41                 power-supply = <&vdd_pnl_reg>;
  42                 enable-gpios = <&gpio 90 0>;
  43
  44                 backlight = <&backlight>;
  45         };
  46
  47 Or:
  48         panel: panel {
  49                 compatible = "simple-panel-dsi";
  50                 ddc-i2c-bus = <&panelddc>;
  51
  52                 power-supply = <&vdd_pnl_reg>;
  53                 enable-gpios = <&gpio 90 0>;
  54
  55                 reset-gpios = <&gpio 91 0>;
  56                 reset-delay-ms = <20>;
  57
  58                 backlight = <&backlight>;
  59
  60                 dsi,flags = <MIPI_DSI_MODE_VIDEO |
  61                              MIPI_DSI_MODE_VIDEO_BURST |
  62                              MIPI_DSI_MODE_VIDEO_SYNC_PULSE>;
  63                 dsi,format = <MIPI_DSI_FMT_RGB888>;
  64                 dsi,lanes = <4>;
  65
  66                 panel-init-sequence = [
  67                         39 00 10 b1 6c 15 15 24 E4 11 f1 80 e4
  68                                  d7 23 80 c0 d2 58
  69                         ...
  70                         05 78 01 11
  71                         05 00 01 29
  72                 ];
  73
  74                 panel-exit-sequence = [
  75                         05 00 01 28
  76                         05 78 01 10
  77                 ];
  78
  79                 display-timings {
  80                         native-mode = <&timing0>;
  81                         timing0: timing0 {
  82                                 clock-frequency = <160000000>;
  83                                 hactive = <1200>;
  84                                 vactive = <1920>;
  85                                 hback-porch = <21>;
  86                                 hfront-porch = <120>;
  87                                 vback-porch = <18>;
  88                                 vfront-porch = <21>;
  89                                 hsync-len = <20>;
  90                                 vsync-len = <3>;
  91                                 hsync-active = <0>;
  92                                 vsync-active = <0>;
  93                                 de-active = <0>;
  94                                 pixelclk-active = <0>;
  95                         };
  96                 };
  97         };