Add document about bfin-gpio when requesting a pin both as gpio and gpio interrupt.
Signed-off-by: Graf Yang Signed-off-by: Bryan Wu
00-INDEX - This file cache-lock.txt - HOWTO for blackfin cache locking. cachefeatures.txt - Supported cache features. Filesystems - Requirements for mounting the root file system. bfin-gpio-note.txt - Notes in developing/using bfin-gpio driver.