From: Chris Ball Date: Wed, 22 Aug 2012 17:21:01 +0000 (-0400) Subject: mmc: dt: Add card-detection properties to core binding. X-Git-Tag: firefly_0821_release~3680^2~1873^2~43 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=abe1e05da365350ac282ba5f6831aae13d97074e;p=firefly-linux-kernel-4.4.55.git mmc: dt: Add card-detection properties to core binding. Signed-off-by: Chris Ball --- diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index 8a6811f4a02f..8e2e0ba2f486 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -9,12 +9,17 @@ Interpreted by the OF core: Required properties: - bus-width: Number of data lines, can be <1>, <4>, or <8> +Card detection: +If no property below is supplied, standard SDHCI card detect is used. +Only one of the properties in this section should be supplied: + - broken-cd: There is no card detection available; polling must be used. + - cd-gpios: Specify GPIOs for card detection, see gpio binding + - non-removable: non-removable slot (like eMMC); assume always present. + Optional properties: -- cd-gpios: Specify GPIOs for card detection, see gpio binding - wp-gpios: Specify GPIOs for write protection, see gpio binding - cd-inverted: when present, polarity on the cd gpio line is inverted - wp-inverted: when present, polarity on the wp gpio line is inverted -- non-removable: non-removable slot (like eMMC) - max-frequency: maximum operating clock frequency Example: