NFC_INT_MASK
nfc_set(mtd, NFC_CONFIG1, NFC_INT_MASK);
nfc_clear(mtd, NFC_CONFIG1, NFC_INT_MASK);
nfc_write(mtd, NFC_CONFIG1, NFC_BIG_ENDIAN | NFC_INT_MASK |
writel(st & NFC_INT_MASK, nfc->regs + NFC_REG_ST);
writel(~st & ien & NFC_INT_MASK, nfc->regs + NFC_REG_INT);
if (events & ~NFC_INT_MASK)
writel(events & NFC_INT_MASK, nfc->regs + NFC_REG_ST);