[deliverable/linux.git] / Documentation / devicetree / bindings / display / simple-framebuffer-sunxi.txt

Sunxi specific Simple Framebuffer bindings

This binding documents sunxi specific extensions to the simple-framebuffer
bindings. The sunxi simplefb u-boot code relies on the devicetree containing
pre-populated simplefb nodes.

These extensions are intended so that u-boot can select the right node based
on which pipeline is being used. As such they are solely intended for
firmware / bootloader use, and the OS should ignore them.

Required properties:
- compatible: "allwinner,simple-framebuffer"
- allwinner,pipeline, one of:
  "de_be0-lcd0"
  "de_be1-lcd1"
  "de_be0-lcd0-hdmi"
  "de_be1-lcd1-hdmi"

Example:

chosen {
	#address-cells = <1>;
	#size-cells = <1>;
	ranges;

	framebuffer@0 {
		compatible = "allwinner,simple-framebuffer", "simple-framebuffer";
		allwinner,pipeline = "de_be0-lcd0-hdmi";
		clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
			 <&ahb_gates 44>;
		status = "disabled";
	};
};
Commit	Line	Data
b14c9929 HG	1	Sunxi specific Simple Framebuffer bindings
	2
	3	This binding documents sunxi specific extensions to the simple-framebuffer
	4	bindings. The sunxi simplefb u-boot code relies on the devicetree containing
	5	pre-populated simplefb nodes.
	6
	7	These extensions are intended so that u-boot can select the right node based
	8	on which pipeline is being used. As such they are solely intended for
	9	firmware / bootloader use, and the OS should ignore them.
	10
	11	Required properties:
	12	- compatible: "allwinner,simple-framebuffer"
	13	- allwinner,pipeline, one of:
	14	"de_be0-lcd0"
	15	"de_be1-lcd1"
	16	"de_be0-lcd0-hdmi"
	17	"de_be1-lcd1-hdmi"
	18
	19	Example:
	20
	21	chosen {
	22	#address-cells = <1>;
	23	#size-cells = <1>;
	24	ranges;
	25
	26	framebuffer@0 {
	27	compatible = "allwinner,simple-framebuffer", "simple-framebuffer";
	28	allwinner,pipeline = "de_be0-lcd0-hdmi";
	29	clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
	30	<&ahb_gates 44>;
	31	status = "disabled";
	32	};
	33	};