[PATCH 09/10] dt-bindings: input: touchscreen: stmpe: add tracking index

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The tracking index is a "minimum" distance two touch
points need to have in order for the second to be valid.
This adds the corresponding binding property documentation.

Signed-off-by: Leif Middelschulte <leif.middelschulte@xxxxxxxxxxxxx>
---
 .../bindings/input/touchscreen/stmpe.txt          | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt
index 09d2d4f288cc..8696af35a7b8 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/stmpe.txt
@@ -42,6 +42,21 @@ Optional properties:
 				The given window also affects the value range (limits) set
 				within the input subsystem which, in turn, affects
 				the input resolution calculation on both axes.
+- st,tracking-index	: Minimal distance between the current touch position and the previous
+				touch position. If the distance is shorter than the tracking
+				index, it is discarded. The tracking is calculated by summation
+				of the horizontal and vertical movement.
+				If pressure reporting is enabled (X/Y/Z), an increase in pressure
+				override the movement tracking and report the new data set, even
+				if X/Y is within the previous tracking index.
+				0 -> disabled
+				1 -> 4
+				4 -> 8
+				3 -> 16
+				4 -> 32
+				5 -> 64
+				6 -> 92
+				7 -> 127
 - touchscreen-inverted-x: X axis is inverted (boolean)
 - touchscreen-inverted-y: Y axis is inverted (boolean)
 - touchscreen-swapped-x-y: X and Y axis are swapped (boolean)
-- 
2.21.0




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux