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dt-bindings: touchscreen: fsl,imx6ul-tsc: support glitch thresold

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Support the debounce-delay-us property.

Drivers must convert this value to IPG clock cycles and map it to one of
the four discrete thresholds exposed by the TSC_DEBUG_MODE2 register:

  0: 8191 IPG cycles
  1: 4095 IPG cycles
  2: 2047 IPG cycles
  3: 1023 IPG cycles

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250923143746.2857292-5-dario.binacchi@amarulasolutions.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dario Binacchi 2025-09-23 16:37:35 +02:00 committed by Dmitry Torokhov
parent cf6f234d7d
commit 3fccd1f955
1 changed files with 14 additions and 0 deletions
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14
Documentation/devicetree/bindings/input/touchscreen/fsl,imx6ul-tsc.yaml
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@ -62,6 +62,20 @@ properties:
description: Number of data samples which are averaged for each read.
enum: [ 1, 4, 8, 16, 32 ]
debounce-delay-us:
description: |
Minimum duration in microseconds a signal must remain stable
to be considered valid.
Drivers must convert this value to IPG clock cycles and map
it to one of the four discrete thresholds exposed by the
TSC_DEBUG_MODE2 register:
0: 8191 IPG cycles
1: 4095 IPG cycles
2: 2047 IPG cycles
3: 1023 IPG cycles
required:
- compatible
- reg