LCD on Zoom2 dev board with DSS

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Hi all, 

I'm working on a zoom2 dev board (omap34x-II MDP). There is my actual config :

I've built kernel 2.6.35 from git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
and then applied the following patchs :
[PATCH 1/2 V7] OMAP: ZOOM2/3&SDP3630: Add display board file for zoom boards <http://marc.info/?l=linux-omap&m=127445506720934&w=2>
[PATCH 2/2 V7] OMAP: ZOOM2/3&SDP3630: Add display board file for zoom boards <http://marc.info/?l=linux-omap&m=127445522921326&w=2>
[PATCH V6] OMAP: DSS: Add NEC NL8048HL11-01B display panel <http://marc.info/?l=linux-omap&m=127445535621669&w=2>

Finally I've enabled DSS and lcd NEC_NL8048HL11 in kernel config file.

At this time the kernel boots well, and my LCD backlight turns on but I can't see TUX while booting, and I can't draw anything after logging in.
I've checked, the framebuffer device is present and configured with size of 800x480.

I've played with sys filesystem like on this wiki, but nothing happened:
<http://www.omappedia.org/wiki/Bootargs_for_enabling_display>

To enable DSS at boot time, I passed following boot options:
vram=10M omapdss.def_disp=lcd


Perhaps I've missed something?

Thank you in advance.

---
Yanick

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