From ff7af0fe13b5254ba8467a4344ab53ab0445971e Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: Tue, 25 May 2021 11:53:29 -0700
Subject: [PATCH] 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>
---
.../devicetree/bindings/input/touchscreen/touchscreen.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
index 046ace461cc9d..4b5b212c772c4 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
@@ -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 ]
--
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