1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
Freescale imx21 Framebuffer
This framebuffer driver supports devices imx1, imx21, imx25, and imx27.
Required properties:
- compatible : "fsl,<chip>-fb", chip should be imx1 or imx21
- reg : Should contain 1 register ranges(address and length)
- interrupts : One interrupt of the fb dev
Required nodes:
- display: Phandle to a display node as described in
Documentation/devicetree/bindings/display/display-timing.txt
Additional, the display node has to define properties:
- bits-per-pixel: Bits per pixel
- fsl,pcr: LCDC PCR value
Optional properties:
- lcd-supply: Regulator for LCD supply voltage.
- fsl,dmacr: DMA Control Register value. This is optional. By default, the
register is not modified as recommended by the datasheet.
- fsl,lpccr: Contrast Control Register value. This property provides the
default value for the contrast control register.
If that property is omitted, the register is zeroed.
- fsl,lscr1: LCDC Sharp Configuration Register value.
Example:
imxfb: fb@10021000 {
compatible = "fsl,imx21-fb";
interrupts = <61>;
reg = <0x10021000 0x1000>;
display = <&display0>;
};
...
display0: display0 {
model = "Primeview-PD050VL1";
native-mode = <&timing_disp0>;
bits-per-pixel = <16>;
fsl,pcr = <0xf0c88080>; /* non-standard but required */
display-timings {
timing_disp0: 640x480 {
hactive = <640>;
vactive = <480>;
hback-porch = <112>;
hfront-porch = <36>;
hsync-len = <32>;
vback-porch = <33>;
vfront-porch = <33>;
vsync-len = <2>;
clock-frequency = <25000000>;
};
};
};
|
