SPRD_RX_FIFO_CNT_MASK 611 drivers/tty/serial/sprd_serial.c while ((serial_in(port, SPRD_STS1) & SPRD_RX_FIFO_CNT_MASK) && SPRD_RX_FIFO_CNT_MASK 729 drivers/tty/serial/sprd_serial.c while (timeout-- && serial_in(port, SPRD_STS1) & SPRD_RX_FIFO_CNT_MASK)