On Fri 2015-05-29 21:08:16, Pavel Machek wrote: > Hi! > > > mh I remember having problems with tsc2005 before. It helped to > > reset the controller (should actually happen automatically when it > > hangs, but I'm not sure, that it actually works). > > Ok, I did some more testing, and found out rather bogus values in > evtest: > > Input device name: "TSC2005 touchscreen" > Supported events: > Event type 0 (EV_SYN) > Event type 1 (EV_KEY) > Event code 330 (BTN_TOUCH) > Event type 3 (EV_ABS) > Event code 0 (ABS_X) > Value 2514 > Min 0 > Max 0 > Fuzz 4 > > Which made me go through the git logs, and these patches looked > suspicious. After a revert... yes, touchscreen works as well as it > worked before. > > 0a363a380954e10fece7cd9931b66056eeb07d56 > 3eea8b5d68c801fec788b411582b803463834752 > > (It is impossible to revert just 3eea..)
Hmm, I see: touchscreen-max-x = <4096>; touchscreen-max-y = <4096>; ...that's n900 dts.. this should be size-x/size-y... so we have a bug in dts. But the 3eea8b5d68c801fec788b411582b803463834752 is buggy, it should not overwrite ->maximum for axis it has no devicetree data for. Maybe replacing + if (maximum || fuzz) in 3eea to (maximum && fuzz)... would help, but it is late in the cycle now, so I'd suggest just reverting 3eea8b. Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/