[PATCH v5 5/7] dt-bindings: input: matrix_keypad - add settle time after enable all columns
From: Markus Burri <hidden>
Date: 2025-01-10 05:50:41
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
Matrix_keypad with high capacity need a longer settle time after enable all columns. Add optional property to specify the settle time Signed-off-by: Markus Burri <redacted> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> --- .../devicetree/bindings/input/gpio-matrix-keypad.yaml | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
index 9c91224..dc08d39 100644
--- a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
+++ b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml@@ -57,6 +57,12 @@ properties: before we can scan keypad after activating column gpio. default: 0 + all-cols-on-delay-us: + description: + Delay, measured in microseconds, that is needed + after activating all column gpios. + default: 0 + drive-inactive-cols: type: boolean description:
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2.39.5