MTK_REG_CHISR     500 drivers/bluetooth/btmtksdio.c 	int_status = sdio_readl(func, MTK_REG_CHISR, NULL);
MTK_REG_CHISR     511 drivers/bluetooth/btmtksdio.c 	sdio_writel(func, int_status, MTK_REG_CHISR, NULL);