diff --git a/sound/pci/au88x0/au88x0.c b/sound/pci/au88x0/au88x0.c
index 7c54785..7d9184f 100644
--- a/sound/pci/au88x0/au88x0.c
+++ b/sound/pci/au88x0/au88x0.c
@@ -20,6 +20,7 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/moduleparam.h>
+#include <linux/dma-mapping.h>
 #include <sound/initval.h>
 
 // module parameters (see "Module Parameters")
@@ -150,11 +151,10 @@
 	// check PCI availability (DMA).
 	if ((err = pci_enable_device(pci)) < 0)
 		return err;
-	if (!pci_dma_supported(pci, VORTEX_DMA_MASK)) {
+	if (pci_set_dma_mask(pci, DMA_32BIT_MASK)) {
 		printk(KERN_ERR "error to set DMA mask\n");
 		return -ENXIO;
 	}
-	pci_set_dma_mask(pci, VORTEX_DMA_MASK);
 
 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
 	if (chip == NULL)
diff --git a/sound/pci/au88x0/au88x0.h b/sound/pci/au88x0/au88x0.h
index 745f995..c2ad267 100644
--- a/sound/pci/au88x0/au88x0.h
+++ b/sound/pci/au88x0/au88x0.h
@@ -39,8 +39,6 @@
 #include "au88x0_wt.h"
 #endif
 
-#define	VORTEX_DMA_MASK	0xffffffff
-
 #define	hwread(x,y) readl((x)+((y)>>2))
 #define	hwwrite(x,y,z) writel((z),(x)+((y)>>2))