1# 2# MMC core configuration 3# 4 5config MMC_UNSAFE_RESUME 6 bool "Assume MMC/SD cards are non-removable (DANGEROUS)" 7 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 17 This option sets a default which can be overridden by the 18 module parameter "removable=0" or "removable=1". 19 20config MMC_CLKGATE 21 bool "MMC host clock gating" 22 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. 29