[M800] Touchscreen filters are not working

[morphis]

On 09.04.2009 06:25, Nelson Castillo wrote:
> On Wed, Apr 8, 2009 at 11:16 AM, Nelson Castillo
> <arhuaco at freaks-unidos.net> wrote:
> (cut)
>>> Sorry I forgot to add the link. Here it is:
>>> http://git.gnufiish.org/?p=gnufiish.git;a=blob;f=arch/arm/mach-s3c2440/mach-glofiish.c;h=bdf4d1e2d235a47ddc0c282d33fd7df1fa94036a;hb=HEAD
> 
> BTW, I'm working on this code now and I had trouble with "delay". Thus
> I checked yours to see what you were using.
> 
> 376         .delay = 10000,
> 377         .presc = 50000000 / 1000000, /* 50 MHz PCLK / 1MHz */
> 378         //.presc = 0xff, /* slow as we can go */
> 
> You might want to use the original .presc until you get the TS to work
> the first time... I tested with the values you have and the TS
> wouldn't work for me.

Ok, I merged with current andy-tracking to get a current ts filter chain
but it is still the result. I produced a little example for the current
problem with touch_test.py. I only pressed my finger on one point of the
screen. The app reports:
Move: (352, 242)
Down: (352, 242)
Move: (380, 253)
Move: (394, 257)
Move: (409, 268)
Move: (420, 284)
Move: (426, 291)
Move: (429, 295)
Move: (430, 298)
Move: (433, 301)
Move: (433, 302)
Move: (434, 302)
Move: (434, 303)
Move: (433, 303)
Move: (434, 303)
Move: (433, 303)
Move: (436, 304)
Move: (435, 304)
Move: (434, 304)
Move: (433, 304)
Move: (430, 304)
Move: (431, 304)
Move: (434, 304)
Move: (433, 304)
Move: (434, 304)
Move: (435, 303)
Move: (436, 303)
Move: (434, 300)
Move: (430, 292)
Up: (430, 292)

So the cursor moves up to top left corner while I am press one point of
the screen. Any hints which calibration of the filters is wrong?