mirror of https://gitee.com/openkylin/linux.git
48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
* Currus Logic CLPS711X Framebuffer
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Required properties:
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- compatible: Shall contain "cirrus,ep7209-fb".
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- reg : Physical base address and length of the controller's registers +
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location and size of the framebuffer memory.
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- clocks : phandle + clock specifier pair of the FB reference clock.
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- display : phandle to a display node as described in
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Documentation/devicetree/bindings/display/panel/display-timing.txt.
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Additionally, the display node has to define properties:
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- bits-per-pixel: Bits per pixel.
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- ac-prescale : LCD AC bias frequency. This frequency is the required
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AC bias frequency for a given manufacturer's LCD plate.
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- cmap-invert : Invert the color levels (Optional).
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Optional properties:
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- lcd-supply: Regulator for LCD supply voltage.
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Example:
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fb: fb@800002c0 {
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compatible = "cirrus,ep7312-fb", "cirrus,ep7209-fb";
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reg = <0x800002c0 0xd44>, <0x60000000 0xc000>;
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clocks = <&clks 2>;
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lcd-supply = <®5v0>;
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display = <&display>;
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};
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display: display {
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model = "320x240x4";
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native-mode = <&timing0>;
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bits-per-pixel = <4>;
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ac-prescale = <17>;
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display-timings {
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timing0: 320x240 {
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hactive = <320>;
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hback-porch = <0>;
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hfront-porch = <0>;
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hsync-len = <0>;
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vactive = <240>;
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vback-porch = <0>;
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vfront-porch = <0>;
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vsync-len = <0>;
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clock-frequency = <6500000>;
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};
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};
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};
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