On 20 April 2018 at 08:59, Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> wrote: > slot-gpio 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 <shawn.lin@xxxxxxxxxxxxxx> > > --- > > Changes in v3: > - fix misleading typo in commit msg > > Changes in v2: None > > 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 467cd7b..215b9a2 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-delay-ms: Set delay time before detecting card after card insert interrupt. > + It's only valid when cd-gpios is present. I would prefer the property to be named "cd-debounce-delay-ms" instead. Would you mind changing it? > - 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 > -- > 1.9.1 > > Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
