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Date: Mon, 5 May 2014 12:41:26 -0700 From: Tony Lindgren <tony@...mide.com> To: Sebastian Reichel <sre@...nel.org> Cc: Sebastian Reichel <sre@...g0.de>, Dmitry Torokhov <dmitry.torokhov@...il.com>, Dmitry Torokhov <dtor@...l.ru>, linux-input@...r.kernel.org, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org, linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCHv3 1/5] Input: add common DT binding for touchscreens * Sebastian Reichel <sre@...nel.org> [140425 16:56]: > Add common DT binding documentation for touchscreen devices and > implement input_parse_touchscreen_of_params, which parses the common > properties and configures the input device accordingly. > > The method currently does not interpret the axis inversion properties, > since there is no matching flag in the generic linux input device. > > Signed-off-by: Sebastian Reichel <sre@...nel.org> > --- > .../bindings/input/touchscreen/touchscreen.txt | 27 +++++++++++++++++ > drivers/input/input.c | 34 ++++++++++++++++++++++ > include/linux/input.h | 8 +++++ > 3 files changed, 69 insertions(+) > create mode 100644 Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt > new file mode 100644 > index 0000000..d8e0616 > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt > @@ -0,0 +1,27 @@ > +General Touchscreen Properties: > + > +Optional properties for Touchscreens: > + - touchscreen-size-x : horizontal resolution of touchscreen > + (in pixels) > + - touchscreen-size-y : vertical resolution of touchscreen > + (in pixels) > + - touchscreen-max-pressure : maximum reported pressure (arbitrary range > + dependent on the controller) > + - touchscreen-fuzz-x : horizontal noise value of the absolute input > + device (in pixels) > + - touchscreen-fuzz-y : vertical noise value of the absolute input > + device (in pixels) > + - touchscreen-fuzz-pressure : pressure noise value of the absolute input > + device (arbitrary range dependent on the > + controller) > + - touchscreen-inverted-x : X axis is inverted (boolean) > + - touchscreen-inverted-y : Y axis is inverted (boolean) We probably also need something to swap x and y depending on the display orientation in addition to the touchscreen-inverted-x and y. Just swapping x and y is not enough depending if we rotate by 270 degrees instead of 90 degrees. Naturally that part can be added later. Regards, That -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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