diff --git a/arch/arm/mach-pxa/include/mach/pxafb.h b/arch/arm/mach-pxa/include/mach/pxafb.h
index 8e591118371e..cbda4d35c421 100644
--- a/arch/arm/mach-pxa/include/mach/pxafb.h
+++ b/arch/arm/mach-pxa/include/mach/pxafb.h
@@ -33,6 +33,7 @@
 #define LCD_CONN_TYPE(_x)	((_x) & 0x0f)
 #define LCD_CONN_WIDTH(_x)	(((_x) >> 4) & 0x1f)
 
+#define LCD_TYPE_MASK		0xf
 #define LCD_TYPE_UNKNOWN	0
 #define LCD_TYPE_MONO_STN	1
 #define LCD_TYPE_MONO_DSTN	2
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 97204497d9f7..64990592dc58 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -1372,7 +1372,7 @@ static void pxafb_decode_mach_info(struct pxafb_info *fbi,
 	fbi->cmap_inverse	= inf->cmap_inverse;
 	fbi->cmap_static	= inf->cmap_static;
 
-	switch (lcd_conn & 0xf) {
+	switch (lcd_conn & LCD_TYPE_MASK) {
 	case LCD_TYPE_MONO_STN:
 		fbi->lccr0 = LCCR0_CMS;
 		break;