linux/Documentation/devicetree/bindings/display/cirrus,clps711x-fb.txt
Alexander Shiyan 564c9741aa video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
This patch changes the compatibility string to match with the smallest
supported chip (EP7209). Since the DT-support for this CPU is not yet
announced, this change is safe.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-06 17:38:19 +02:00

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* Currus Logic CLPS711X Framebuffer
Required properties:
- compatible: Shall contain "cirrus,ep7209-fb".
- reg : Physical base address and length of the controller's registers +
location and size of the framebuffer memory.
- clocks : phandle + clock specifier pair of the FB reference clock.
- display : phandle to a display node as described in
Documentation/devicetree/bindings/display/display-timing.txt.
Additionally, the display node has to define properties:
- bits-per-pixel: Bits per pixel.
- ac-prescale : LCD AC bias frequency. This frequency is the required
AC bias frequency for a given manufacturer's LCD plate.
- cmap-invert : Invert the color levels (Optional).
Optional properties:
- lcd-supply: Regulator for LCD supply voltage.
Example:
fb: fb@800002c0 {
compatible = "cirrus,ep7312-fb", "cirrus,ep7209-fb";
reg = <0x800002c0 0xd44>, <0x60000000 0xc000>;
clocks = <&clks 2>;
lcd-supply = <&reg5v0>;
display = <&display>;
};
display: display {
model = "320x240x4";
native-mode = <&timing0>;
bits-per-pixel = <4>;
ac-prescale = <17>;
display-timings {
timing0: 320x240 {
hactive = <320>;
hback-porch = <0>;
hfront-porch = <0>;
hsync-len = <0>;
vactive = <240>;
vback-porch = <0>;
vfront-porch = <0>;
vsync-len = <0>;
clock-frequency = <6500000>;
};
};
};