Hi!

quoted

They are "pixels" or the touch controller, i.e. native unites in which
device reports coordinates, as opposed to points per inch, or
millimeters, or whatever. These "pixels" do not have to have 1:1
relation to the LCD pixels; in fact they rarely do.

I wouldn't call this "pixels". Rather "ADC steps" or something.

Submit a patch.

quoted

Why? Nothing stops you from querying the device and figure out scaling.

What stops me is that I have no (and do not want to have) that level of control over
user-space code.

Umm. Then perhaps you should not be submitting kernel patches.

quoted

And still, according to DT folks, device tree forms an ABI and thus we
are not to change it, even if it is easy.

I think this needs a more differentiated view.

In my view the names of the binding properties and what they influence form indeed
an ABI. It should be stable and interpreted in the same way.

But it allows to load different firmware for different requirements. Like the user
application ABI is stable but you can still load different software.

No. You can't expect people to konfigure kernel by modifying dts.
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html