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Pierre Ossman6abaa0c2007-05-01 16:00:02 +02001#
2# MMC core configuration
3#
4
5config MMC_UNSAFE_RESUME
Ben Hutchingsbd68e082009-12-14 18:01:29 -08006 bool "Assume MMC/SD cards are non-removable (DANGEROUS)"
Pierre Ossman6abaa0c2007-05-01 16:00:02 +02007 help
8 If you say Y here, the MMC layer will assume that all cards
9 stayed in their respective slots during the suspend. The
10 normal behaviour is to remove them at suspend and
11 redetecting them at resume. Breaking this assumption will
12 in most cases result in data corruption.
13
14 This option is usually just for embedded systems which use
15 a MMC/SD card for rootfs. Most people should say N here.
16
Ben Hutchingsbd68e082009-12-14 18:01:29 -080017 This option sets a default which can be overridden by the
18 module parameter "removable=0" or "removable=1".
Linus Walleij04566832010-11-08 21:36:50 -050019
20config MMC_CLKGATE
Kees Cook9c905fa2012-10-02 11:17:45 -070021 bool "MMC host clock gating"
Linus Walleij04566832010-11-08 21:36:50 -050022 help
23 This will attempt to aggressively gate the clock to the MMC card.
24 This is done to save power due to gating off the logic and bus
25 noise when the MMC card is not in use. Your host driver has to
26 support handling this in order for it to be of any use.
27
28 If unsure, say N.