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insmod vpss.ko occr error!!!

8148 2G mem

bootargs :

bootargs=console=ttyO0,115200n8 root=/dev/nfs rw mem=80M vram=4M nofityk.vpssm3_sva=0xBFD00000 rootdelay=5 nfsroot=192.168.1.168:/opt/ti_8127/filesys,nolock eth=00:0C:0C:A0:01:81 ip=192.168.1.186 cmemk.phys_start=0x85000000 cmemk.phys_e
nd=0x89000000 cmemk.allowOverlap=1 earlyprintk

insmod:

insmod ./kermod/vpss.ko debug=1  mode=hdmi:1080p-60 sbufaddr=0xbfb00000

if i use "insmod vpss.ko mode=hdmi:1080p-60 sbufaddr=0xbfb00000" ,

i got the error when camera start:

Failed to send version command to M3 0xfffffff0

.....

VPSS_FVID2: Unable to get firmware version
VPSS_CORE : Failed to init fvid2 interface,
vpss: probe of vpss failed with error -22
VPSS_CORE : failed to register ti81xx-vpss driver
insmod: error inserting './kermod/vpss.ko': -1 No such device

anyone here can help me ?

thanks a lot.