Thread (10 messages) 10 messages, 3 authors, 2025-09-16

[PATCH v2 3/6] dt-bindings: touchscreen: add touchscreen-glitch-threshold-ns property

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From: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Date: 2025-09-14 17:16:21
Also in: linux-devicetree, lkml
Subsystem: input (keyboard, mouse, joystick, touchscreen) drivers, open firmware and flattened device tree bindings, the rest · Maintainers: Dmitry Torokhov, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

Revision v2 of 7 in this series.

Revisions (7)
  1. v1 [diff vs current]
  2. resend [diff vs current]
  3. v2 current
  4. v3 [diff vs current]
  5. v4 [diff vs current]
  6. v5 [diff vs current]
  7. v6 [diff vs current]
Add support for glitch threshold configuration. A detected signal is valid
only if it lasts longer than the set threshold; otherwise, it is regarded
as a glitch.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

Changes in v2:
- Added in v2.

 .../devicetree/bindings/input/touchscreen/touchscreen.yaml    | 4 ++++
 1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
index 3e3572aa483a..a60b4d08620d 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
@@ -206,6 +206,10 @@ properties:
 
         unevaluatedProperties: false
 
+  touchscreen-glitch-threshold-ns:
+    description: Minimum duration in nanoseconds a signal must remain stable
+      to be considered valid.
+
 dependencies:
   touchscreen-size-x: [ touchscreen-size-y ]
   touchscreen-size-y: [ touchscreen-size-x ]
-- 
2.43.0
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