Openmoko's S3C touchscreen driver porting question

[Maurus Cuelenaere]

Hi,

I'm working on porting the SmartQ 7 to mainline Linux, and as this 
doesn't have any touchscreen drivers for the S3C6410, I tried using 
Openmoko's one ([1]).

I got it compiling correctly, but when I press the screen, the driver 
seems to endlessly print "stylus_action bug" (line 320 at s3c2410_ts.c).
The endless loop is probably because __kfifo_put() fails and so 
S3C2410_ADCTSC doesn't get written.

What I don't understand though is why it fails (it seems to return 0), 
any ideas?

[1]: 
http://gitorious.org/mcuelenaere-smartq-kernel/mcuelenaere-smartq-kernel/commits/experimental-2.6.31-bd-ts

Thanks,
Maurus Cuelenaere