0001 * Currus Logic CLPS711X Framebuffer
0002
0003 Required properties:
0004 - compatible: Shall contain "cirrus,ep7209-fb".
0005 - reg : Physical base address and length of the controller's registers +
0006 location and size of the framebuffer memory.
0007 - clocks : phandle + clock specifier pair of the FB reference clock.
0008 - display : phandle to a display node as described in
0009 Documentation/devicetree/bindings/display/panel/display-timing.txt.
0010 Additionally, the display node has to define properties:
0011 - bits-per-pixel: Bits per pixel.
0012 - ac-prescale : LCD AC bias frequency. This frequency is the required
0013 AC bias frequency for a given manufacturer's LCD plate.
0014 - cmap-invert : Invert the color levels (Optional).
0015
0016 Optional properties:
0017 - lcd-supply: Regulator for LCD supply voltage.
0018
0019 Example:
0020 fb: fb@800002c0 {
0021 compatible = "cirrus,ep7312-fb", "cirrus,ep7209-fb";
0022 reg = <0x800002c0 0xd44>, <0x60000000 0xc000>;
0023 clocks = <&clks 2>;
0024 lcd-supply = <®5v0>;
0025 display = <&display>;
0026 };
0027
0028 display: display {
0029 model = "320x240x4";
0030 bits-per-pixel = <4>;
0031 ac-prescale = <17>;
0032
0033 display-timings {
0034 native-mode = <&timing0>;
0035 timing0: 320x240 {
0036 hactive = <320>;
0037 hback-porch = <0>;
0038 hfront-porch = <0>;
0039 hsync-len = <0>;
0040 vactive = <240>;
0041 vback-porch = <0>;
0042 vfront-porch = <0>;
0043 vsync-len = <0>;
0044 clock-frequency = <6500000>;
0045 };
0046 };
0047 };
