1Atmel LCDC Framebuffer
2-----------------------------------------------------
3
4Required properties:
5- compatible :
6	"atmel,at91sam9261-lcdc" ,
7	"atmel,at91sam9263-lcdc" ,
8	"atmel,at91sam9g10-lcdc" ,
9	"atmel,at91sam9g45-lcdc" ,
10	"atmel,at91sam9g45es-lcdc" ,
11	"atmel,at91sam9rl-lcdc" ,
12	"atmel,at32ap-lcdc"
13- reg : Should contain 1 register ranges(address and length).
14	Can contain an additional register range(address and length)
15	for fixed framebuffer memory. Useful for dedicated memories.
16- interrupts : framebuffer controller interrupt
17- display: a phandle pointing to the display node
18
19Required nodes:
20- display: a display node is required to initialize the lcd panel
21	This should be in the board dts.
22- default-mode: a videomode within the display with timing parameters
23	as specified below.
24
25Optional properties:
26- lcd-supply: Regulator for LCD supply voltage.
27
28Example:
29
30	fb0: fb@00500000 {
31		compatible = "atmel,at91sam9g45-lcdc";
32		reg = <0x00500000 0x1000>;
33		interrupts = <23 3 0>;
34		pinctrl-names = "default";
35		pinctrl-0 = <&pinctrl_fb>;
36		display = <&display0>;
37		#address-cells = <1>;
38		#size-cells = <1>;
39
40	};
41
42Example for fixed framebuffer memory:
43
44	fb0: fb@00500000 {
45		compatible = "atmel,at91sam9263-lcdc";
46		reg = <0x00700000 0x1000 0x70000000 0x200000>;
47		[...]
48	};
49
50Atmel LCDC Display
51-----------------------------------------------------
52Required properties (as per of_videomode_helper):
53
54 - atmel,dmacon: dma controller configuration
55 - atmel,lcdcon2: lcd controller configuration
56 - atmel,guard-time: lcd guard time (Delay in frame periods)
57 - bits-per-pixel: lcd panel bit-depth.
58
59Optional properties (as per of_videomode_helper):
60 - atmel,lcdcon-backlight: enable backlight
61 - atmel,lcdcon-backlight-inverted: invert backlight PWM polarity
62 - atmel,lcd-wiring-mode: lcd wiring mode "RGB" or "BRG"
63 - atmel,power-control-gpio: gpio to power on or off the LCD (as many as needed)
64
65Example:
66	display0: display {
67		bits-per-pixel = <32>;
68		atmel,lcdcon-backlight;
69		atmel,dmacon = <0x1>;
70		atmel,lcdcon2 = <0x80008002>;
71		atmel,guard-time = <9>;
72		atmel,lcd-wiring-mode = <1>;
73
74		display-timings {
75			native-mode = <&timing0>;
76			timing0: timing0 {
77				clock-frequency = <9000000>;
78				hactive = <480>;
79				vactive = <272>;
80				hback-porch = <1>;
81				hfront-porch = <1>;
82				vback-porch = <40>;
83				vfront-porch = <1>;
84				hsync-len = <45>;
85				vsync-len = <1>;
86			};
87		};
88	};
89