READING_NULL      691 drivers/spi/spi-pl022.c 		case READING_NULL:
READING_NULL      740 drivers/spi/spi-pl022.c 			case READING_NULL:
READING_NULL      990 drivers/spi/spi-pl022.c 	case READING_NULL:
READING_NULL     1364 drivers/spi/spi-pl022.c 	pl022->read = pl022->rx ? pl022->cur_chip->read : READING_NULL;