From 52a70098ffb9a1cb1ec377f5e63b137db5d1ccbd Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Tue, 24 Apr 2018 08:42:56 +0800 Subject: mmc: dt-bindings: Add optional cd-debounce-delay-ms cd-gpios uses a fixed delay, 200ms, before detecting card after the card is inserted. 200ms doesn't work for some platforms, so some host drivers added their own properties for parsing that from DT, for instance, dw_mmc and pxamci. That being said, it should also be tunable when using cd-gpios. Signed-off-by: Shawn Lin Reviewed-by: Rob Herring Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index 467cd7b147ce..dbe23b12ea1c 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -19,6 +19,8 @@ Optional properties: - wp-gpios: Specify GPIOs for write protection, see gpio binding - cd-inverted: when present, polarity on the CD line is inverted. See the note below for the case, when a GPIO is used for the CD line +- cd-debounce-delay-ms: Set delay time before detecting card after card insert interrupt. + It's only valid when cd-gpios is present. - wp-inverted: when present, polarity on the WP line is inverted. See the note below for the case, when a GPIO is used for the WP line - disable-wp: When set no physical WP line is present. This property should -- cgit v1.2.3