Documentation/devicetree/bindings/video/cirrus,clps711x-fb.txt

   1 * Currus Logic CLPS711X Framebuffer
   2
   3 Required properties:
   4 - compatible: Shall contain "cirrus,clps711x-fb".
   5 - reg       : Physical base address and length of the controller's registers +
   6               location and size of the framebuffer memory.
   7 - clocks    : phandle + clock specifier pair of the FB reference clock.
   8 - display   : phandle to a display node as described in
   9               Documentation/devicetree/bindings/video/display-timing.txt.
  10               Additionally, the display node has to define properties:
  11   - bits-per-pixel: Bits per pixel.
  12   - ac-prescale   : LCD AC bias frequency. This frequency is the required
  13                     AC bias frequency for a given manufacturer's LCD plate.
  14   - cmap-invert   : Invert the color levels (Optional).
  15
  16 Optional properties:
  17 - lcd-supply: Regulator for LCD supply voltage.
  18
  19 Example:
  20         fb: fb@800002c0 {
  21                 compatible = "cirrus,ep7312-fb", "cirrus,clps711x-fb";
  22                 reg = <0x800002c0 0xd44>, <0x60000000 0xc000>;
  23                 clocks = <&clks 2>;
  24                 lcd-supply = <&reg5v0>;
  25                 display = <&display>;
  26         };
  27
  28         display: display {
  29                 model = "320x240x4";
  30                 native-mode = <&timing0>;
  31                 bits-per-pixel = <4>;
  32                 ac-prescale = <17>;
  33
  34                 display-timings {
  35                         timing0: 320x240 {
  36                                 hactive = <320>;
  37                                 hback-porch = <0>;
  38                                 hfront-porch = <0>;
  39                                 hsync-len = <0>;
  40                                 vactive = <240>;
  41                                 vback-porch = <0>;
  42                                 vfront-porch = <0>;
  43                                 vsync-len = <0>;
  44                                 clock-frequency = <6500000>;
  45                         };
  46                 };
  47         };