Re: [PATCH v3 4/6] dt-bindings: touchscreen: fsl,imx6ul-tsc: support glitch thresold
flat view
From: Frank Li <Frank.li@nxp.com>
Date: 2025-09-16 15:55:29
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imx, linux-devicetree, linux-input, lkml
On Mon, Sep 15, 2025 at 09:53:06PM +0200, Dario Binacchi wrote:
quoted hunk ↗ jump to hunk
Support the touchscreen-glitch-threshold-ns property. Unlike the generic description in touchscreen.yaml, this controller maps the provided value to one of four discrete thresholds internally. Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> --- Changes in v3: - Remove the final part of the description that refers to implementation details. .../bindings/input/touchscreen/fsl,imx6ul-tsc.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+)diff --git a/Documentation/devicetree/bindings/input/touchscreen/fsl,imx6ul-tsc.yaml b/Documentation/devicetree/bindings/input/touchscreen/fsl,imx6ul-tsc.yaml index 678756ad0f92..6214d8be5a99 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/fsl,imx6ul-tsc.yaml +++ b/Documentation/devicetree/bindings/input/touchscreen/fsl,imx6ul-tsc.yaml@@ -62,6 +62,18 @@ properties: description: Number of data samples which are averaged for each read. enum: [ 1, 4, 8, 16, 32 ] + touchscreen-glitch-threshold-ns: + description: | + Unlike the generic property defined in touchscreen.yaml, this + controller does not allow arbitrary values. Internally the value is + converted to IPG clock cycles and mapped to one of 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 +
You have to use ns here. You can caculate in driver to match to closed one. Frank
required: - compatible - reg -- 2.43.0