diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index edb32e3f..2f43a58 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -753,7 +753,7 @@
 		pi->port.line);
 
 	if (!pi->dma_region) {
-		if (!dma_supported(pi->port.dev, 0xffffffff)) {
+		if (!dma_set_mask(pi->port.dev, 0xffffffff)) {
 			printk(KERN_ERR "MPSC: Inadequate DMA support\n");
 			rc = -ENXIO;
 		} else if ((pi->dma_region = dma_alloc_noncoherent(pi->port.dev,