NAU8824_SHORTKEY_DEBOUNCE_SFT 1674 sound/soc/codecs/nau8824.c 		nau8824->key_debounce << NAU8824_SHORTKEY_DEBOUNCE_SFT);
NAU8824_SHORTKEY_DEBOUNCE_SFT  224 sound/soc/codecs/nau8824.h #define NAU8824_SHORTKEY_DEBOUNCE_MASK	(0x3 << NAU8824_SHORTKEY_DEBOUNCE_SFT)