Hi,

On Fri, Oct 23, 2015 at 11:56:35PM +0800, Chen-Yu Tsai wrote:

quoted

quoted

as described in
Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt
here, as the display is in portrait mode while the touchscreen is
in landscape mode and needs to have the x and y axes swapped to
work in the same coordinate system as the display.

Regarding the driver side: the goodix driver in kernel 4.3
doesn't yet support this property, but patches to add support for
it are on the linux-input list and should hopefully make it into
kernel 4.4.

The DTS is already in Maxime's tree, and in sunxi-next. Feel free to
send a follow-up patch adding them. I was waiting for those patches
to be merged.

Sorry, spoke too soon. Maxime hasn't pushed it out yet. Could you send
a patch adding touchscreen-swapped-x-y for Maxime to squash in?

I did the last DT pull request for 4.4 yesterday, so I won't squash
any patches.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com