Documentation/devicetree/bindings/drm/tilcdc/panel.txt

   1 Device-Tree bindings for tilcdc DRM generic panel output driver
   2
   3 Required properties:
   4  - compatible: value should be "ti,tilcdc,panel".
   5  - panel-info: configuration info to configure LCDC correctly for the panel
   6    - ac-bias: AC Bias Pin Frequency
   7    - ac-bias-intrpt: AC Bias Pin Transitions per Interrupt
   8    - dma-burst-sz: DMA burst size
   9    - bpp: Bits per pixel
  10    - fdd: FIFO DMA Request Delay
  11    - sync-edge: Horizontal and Vertical Sync Edge: 0=rising 1=falling
  12    - sync-ctrl: Horizontal and Vertical Sync: Control: 0=ignore
  13    - raster-order: Raster Data Order Select: 1=Most-to-least 0=Least-to-most
  14    - fifo-th: DMA FIFO threshold
  15  - display-timings: typical videomode of lcd panel.  Multiple video modes
  16    can be listed if the panel supports multiple timings, but the 'native-mode'
  17    should be the preferred/default resolution.  Refer to
  18    Documentation/devicetree/bindings/video/display-timing.txt for display
  19    timing binding details.
  20
  21 Recommended properties:
  22  - pinctrl-names, pinctrl-0: the pincontrol settings to configure
  23    muxing properly for pins that connect to TFP410 device
  24
  25 Example:
  26
  27         /* Settings for CDTech_S035Q01 / LCD3 cape: */
  28         lcd3 {
  29                 compatible = "ti,tilcdc,panel";
  30                 pinctrl-names = "default";
  31                 pinctrl-0 = <&bone_lcd3_cape_lcd_pins>;
  32                 panel-info {
  33                         ac-bias           = <255>;
  34                         ac-bias-intrpt    = <0>;
  35                         dma-burst-sz      = <16>;
  36                         bpp               = <16>;
  37                         fdd               = <0x80>;
  38                         sync-edge         = <0>;
  39                         sync-ctrl         = <1>;
  40                         raster-order      = <0>;
  41                         fifo-th           = <0>;
  42                 };
  43                 display-timings {
  44                         native-mode = <&timing0>;
  45                         timing0: 320x240 {
  46                                 hactive         = <320>;
  47                                 vactive         = <240>;
  48                                 hback-porch     = <21>;
  49                                 hfront-porch    = <58>;
  50                                 hsync-len       = <47>;
  51                                 vback-porch     = <11>;
  52                                 vfront-porch    = <23>;
  53                                 vsync-len       = <2>;
  54                                 clock-frequency = <8000000>;
  55                                 hsync-active    = <0>;
  56                                 vsync-active    = <0>;
  57                         };
  58                 };
  59         };