diff --git a/drivers/staging/sm750fb/sm750_accel.c b/drivers/staging/sm750fb/sm750_accel.c
index e150680a8cd1..da4eaea1e975 100644
--- a/drivers/staging/sm750fb/sm750_accel.c
+++ b/drivers/staging/sm750fb/sm750_accel.c
@@ -256,9 +256,8 @@ unsigned int rop2)   /* ROP value */
 	{
 
 	write_dpr(accel, DE_SOURCE,
-		  FIELD_SET(0, DE_SOURCE, WRAP, DISABLE) |
-		  FIELD_VALUE(0, DE_SOURCE, X_K1, sx)   |
-		  FIELD_VALUE(0, DE_SOURCE, Y_K2, sy)); /* dpr0 */
+		  ((sx << DE_SOURCE_X_K1_SHIFT) & DE_SOURCE_X_K1_MASK) |
+		  (sy & DE_SOURCE_Y_K2_MASK)); /* dpr0 */
 	write_dpr(accel, DE_DESTINATION,
 		  FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
 		  FIELD_VALUE(0, DE_DESTINATION, X,    dx)  |
@@ -354,8 +353,8 @@ int hw_imageblit(struct lynx_accel *accel,
 	 /* Note: For 2D Source in Host Write, only X_K1_MONO field is needed, and Y_K2 field is not used.
 	    For mono bitmap, use startBit for X_K1. */
 	write_dpr(accel, DE_SOURCE,
-		  FIELD_SET(0, DE_SOURCE, WRAP, DISABLE)       |
-		  FIELD_VALUE(0, DE_SOURCE, X_K1_MONO, startBit)); /* dpr00 */
+		  (startBit << DE_SOURCE_X_K1_SHIFT) &
+		  DE_SOURCE_X_K1_MONO_MASK); /* dpr00 */
 
 	write_dpr(accel, DE_DESTINATION,
 		  FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
diff --git a/drivers/staging/sm750fb/sm750_accel.h b/drivers/staging/sm750fb/sm750_accel.h
index 1ec66d28f456..0bbdccac448b 100644
--- a/drivers/staging/sm750fb/sm750_accel.h
+++ b/drivers/staging/sm750fb/sm750_accel.h
@@ -21,12 +21,11 @@
 #define DE_PORT_ADDR_TYPE3 0x100000
 
 #define DE_SOURCE                                       0x0
-#define DE_SOURCE_WRAP                                  31:31
-#define DE_SOURCE_WRAP_DISABLE                          0
-#define DE_SOURCE_WRAP_ENABLE                           1
-#define DE_SOURCE_X_K1                                  29:16
-#define DE_SOURCE_Y_K2                                  15:0
-#define DE_SOURCE_X_K1_MONO				20:16
+#define DE_SOURCE_WRAP                                  BIT(31)
+#define DE_SOURCE_X_K1_SHIFT                            16
+#define DE_SOURCE_X_K1_MASK                             (0x3fff << 16)
+#define DE_SOURCE_X_K1_MONO_MASK			(0x1f << 16)
+#define DE_SOURCE_Y_K2_MASK                             0xffff
 
 #define DE_DESTINATION                                  0x4
 #define DE_DESTINATION_WRAP                             31:31