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why is my bootargs about davincifb noneffective when usekernel2.6.18?

duke zuo
Intellectual 325 points

Other Parts Discussed in Thread: THS8200

Just shows by boot info,I have set my bootaregs as:
 
Built 1 zonelists.  Total pages: 29696
Kernel command line: console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nfsroot=10.0.0.89:/mnt/rootfs,nolock 
mem=116M video=davincifb:vid0=0,2500K:vid1=0, 2500K:osd0=800x600x16,2025K :osd1=720x576x16,
1650K davinci_enc_mngr.ch0_output=COMPONENT1 davinci_enc_mngr.ch0_mode=640x480
 
 
but the kernel davincifb_probe()  get the osd0 size is not right!
 
davincifb davincifb.0: dm_osd0_fb: 640x480x16@0,0 with framebuffer size 1200KB
davincifb davincifb.0: dm_vid0_fb: 0x0x16@0,0 with framebuffer size 2500KB
davincifb davincifb.0: dm_osd1_fb: 640x480x4@0,0 with framebuffer size 1200KB
davincifb davincifb.0: dm_vid1_fb: 0x0x16@0,0 with framebuffer size 600KB
 
So i cann't set the osd0 to 800x600 by fbdev command FBIOPUT_VSCREENINFO! but it work well in linux2.6.10, It get the right osd size!I have check the source davincifb.c  between the two kernel version , but i cann't find the reason yet!Any one can help me?thanks a lot!

  • 0
    Intellectual 325 points

    I have reslove the problem,in the kernel2.6.10,the ths8200 driver started before davincifb driver,so the davincifb get the right mod_info ( xres(800) ,yres(600)),but in the kernel2.6.18,ths8200 driver boot after the davincifb , so the  davincifb get the default mod_info and set its values.change the  davincifb_probe() can resolve it!