From: Markus Burri Date: Tue, 25 Feb 2025 17:55:34 +0000 (-0800) Subject: dt-bindings: input: matrix_keypad: add settle time after enabling all columns X-Git-Tag: v6.15-rc1~13^2^2~10 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=2eeac6d4bb5ea1063dd634c490c89bb04cb79265;p=linux-block.git dt-bindings: input: matrix_keypad: add settle time after enabling all columns Matrix keypads with high capacity need a longer settle time after enabling all columns. Add an optional property to specify the settle time. Signed-off-by: Markus Burri Reviewed-by: Rob Herring (Arm) Reviewed-by: Manuel Traut Link: https://lore.kernel.org/r/20250110054906.354296-6-markus.burri@mt.com Signed-off-by: Dmitry Torokhov --- diff --git a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml index 0f348b9b7bad..4a5893edf323 100644 --- a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml +++ b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml @@ -51,6 +51,12 @@ 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: