Commit ff7af0fe authored May 25, 2021 by Oleksij Rempel Committed by Dmitry Torokhov May 25, 2021

dt-bindings: touchscreen: add touchscreen-x/y-plate-ohms property



To calculate the pressure on a restrictive touchscreen we need to know
resistance at least of X plate. Some calculations need to use both X and
Y values. So let's add generic properties which can be used by all
drivers.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210525054634.9134-3-o.rempel@pengutronix.de


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

parent 71d576d3

Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml

+6 −0

Original line number	Diff line number	Diff line
		@@ -74,6 +74,12 @@ properties:
		touchscreen-y-mm:
		description: vertical length in mm of the touchscreen

		touchscreen-x-plate-ohms:
		description: Resistance of the X-plate in Ohms

		touchscreen-y-plate-ohms:
		description: Resistance of the Y-plate in Ohms

		dependencies:
		touchscreen-size-x: [ touchscreen-size-y ]
		touchscreen-size-y: [ touchscreen-size-x ]