Hi Hans, Thanks a lot for reposting this. On Sat, May 10, 2014 at 12:47:05PM +0200, Hans de Goede wrote: > Note the sun4i-ts controller is capable of detecting a second touch, but when > a second touch is present then the accuracy becomes so bad the reported touch > location is not useable. > > The original android driver contains some complicated heuristics using the > aprox. distance between the 2 touches to see if the user is making a pinch > open / close movement, and then reports emulated multi-touch events around > the last touch coordinate (as the dual-touch coordinates are worthless). > > These kinds of heuristics are just asking for trouble (and don't belong > in the kernel). So this driver offers straight forward, reliable single > touch functionality only. > > Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> > --- > .../bindings/input/touchscreen/sun4i.txt | 15 ++ > drivers/input/touchscreen/Kconfig | 10 + > drivers/input/touchscreen/Makefile | 1 + > drivers/input/touchscreen/sun4i-ts.c | 262 +++++++++++++++++++++ > 4 files changed, 288 insertions(+) > create mode 100644 Documentation/devicetree/bindings/input/touchscreen/sun4i.txt > create mode 100644 drivers/input/touchscreen/sun4i-ts.c > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt > new file mode 100644 > index 0000000..e45927e > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/touchscreen/sun4i.txt > @@ -0,0 +1,15 @@ > +sun4i resistive touchscreen controller > +-------------------------------------- > + > +Required properties: > + - compatible: "allwinner,sun4i-ts" In between, I changed the compatible of this driver to sun4i-a10-ts to match the pattern used everywhere else. You should probably update it in your driver as well :) Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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