We are having some issues with the display settings in the device tree not being set. I am seeing the same issue on our imx53 based board and on the imx53-qsb eval board (formally LOCO).
Basically when I check settings with fbset, they are not what's in the dts.
For example here is the eval board dts...
compatible = "fsl,imx-parallel-display";
crtcs = <&ipu 0>;
interface-pix-fmt = "rgb565";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ipu_disp0_1>;
status = "disabled";
clock-frequency = <27000000>;
hactive = <800>;
vactive = <480>;
hback-porch = <40>;
hfront-porch = <60>;
vback-porch = <10>;
vfront-porch = <10>;
hsync-len = <20>;
vsync-len = <10>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <0>;
And here is fbset output...
root@freescale ~$ fbset
geometry 1024 768 1024 768 16
timings 0 0 0 0 0 0 0
As you can see the setting are not correct and the timings are all zero's.
Here's the relevant sys.log excerpt...
imx-drm imx-drm: No connectors reported connected with modes
[drm] Cannot find any crtc or sizes - going 1024x768
Console: switching to colour frame buffer device 128x48
imx-drm imx-drm: fb0: frame buffer device
imx-drm imx-drm: registered panic notifier
Our custom board behaves about the same way with similar sys.log messages.
The eval board display has a bunch of lines. Our board seems a bit better with just the colors being off. Presumably because the timings are all zero's. I'm also seeing the same issue on our mx51 based system.
I was really hoping the eval board was going to work with the latest kernel since we are in the middle of upgrading also. Am I missing something? Any help would be greatly appreciated as to why the dts display settings are not being set.