MFPR_EDGE_FALL 39 arch/arm/plat-pxa/mfp.c #define MFPR_EDGE_BOTH (MFPR_EDGE_RISE | MFPR_EDGE_FALL) MFPR_EDGE_FALL 125 arch/arm/plat-pxa/mfp.c MFPR_EDGE_FALL,