diff --git a/drivers/staging/sm750fb/sm750_accel.c b/drivers/staging/sm750fb/sm750_accel.c
index cdbd766..bcc09e5 100644
--- a/drivers/staging/sm750fb/sm750_accel.c
+++ b/drivers/staging/sm750fb/sm750_accel.c
@@ -63,16 +63,11 @@
 	write_dpr(accel, DE_COLOR_COMPARE_MASK, 0); /* dpr24 */
 	write_dpr(accel, DE_COLOR_COMPARE, 0);
 
-	reg = FIELD_SET(0, DE_CONTROL, TRANSPARENCY, DISABLE)|
-		FIELD_SET(0, DE_CONTROL, TRANSPARENCY_MATCH, OPAQUE)|
-		FIELD_SET(0, DE_CONTROL, TRANSPARENCY_SELECT, SOURCE);
-
-	clr = FIELD_CLEAR(DE_CONTROL, TRANSPARENCY)&
-		FIELD_CLEAR(DE_CONTROL, TRANSPARENCY_MATCH)&
-		FIELD_CLEAR(DE_CONTROL, TRANSPARENCY_SELECT);
+	clr = DE_CONTROL_TRANSPARENCY | DE_CONTROL_TRANSPARENCY_MATCH |
+		DE_CONTROL_TRANSPARENCY_SELECT;
 
 	/* dpr0c */
-	write_dpr(accel, DE_CONTROL, (read_dpr(accel, DE_CONTROL)&clr)|reg);
+	write_dpr(accel, DE_CONTROL, read_dpr(accel, DE_CONTROL) & ~clr);
 }
 
 /* set2dformat only be called from setmode functions
@@ -122,13 +117,9 @@
 		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
 		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr8 */
 
-	deCtrl =
-		FIELD_SET(0, DE_CONTROL, STATUS, START)|
-		FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT)|
-		FIELD_SET(0, DE_CONTROL, LAST_PIXEL, ON)|
-		FIELD_SET(0, DE_CONTROL, COMMAND, RECTANGLE_FILL)|
-		FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2)|
-		FIELD_VALUE(0, DE_CONTROL, ROP, rop); /* dpr0xc */
+	deCtrl = DE_CONTROL_STATUS | DE_CONTROL_LAST_PIXEL |
+		DE_CONTROL_COMMAND_RECTANGLE_FILL | DE_CONTROL_ROP_SELECT |
+		(rop & DE_CONTROL_ROP_MASK); /* dpr0xc */
 
 	write_dpr(accel, DE_CONTROL, deCtrl);
 	return 0;
@@ -264,13 +255,9 @@
 		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
 		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
 
-	de_ctrl = FIELD_VALUE(0, DE_CONTROL, ROP, rop2) |
-		  FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
-		  FIELD_SET(0, DE_CONTROL, COMMAND, BITBLT) |
-		  ((nDirection == RIGHT_TO_LEFT) ?
-		  FIELD_SET(0, DE_CONTROL, DIRECTION, RIGHT_TO_LEFT)
-		  : FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT)) |
-		  FIELD_SET(0, DE_CONTROL, STATUS, START);
+	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) | DE_CONTROL_ROP_SELECT |
+		((nDirection == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) |
+		DE_CONTROL_COMMAND_BITBLT | DE_CONTROL_STATUS;
 	write_dpr(accel, DE_CONTROL, de_ctrl); /* dpr0c */
 
 	}
@@ -284,10 +271,8 @@
 
 	de_ctrl = read_dpr(accel, DE_CONTROL);
 
-	de_ctrl &=
-		   FIELD_MASK(DE_CONTROL_TRANSPARENCY_MATCH) |
-		   FIELD_MASK(DE_CONTROL_TRANSPARENCY_SELECT)|
-		   FIELD_MASK(DE_CONTROL_TRANSPARENCY);
+	de_ctrl &= (DE_CONTROL_TRANSPARENCY_MATCH |
+		    DE_CONTROL_TRANSPARENCY_SELECT | DE_CONTROL_TRANSPARENCY);
 
 	return de_ctrl;
 }
@@ -365,11 +350,9 @@
 	write_dpr(accel, DE_FOREGROUND, fColor);
 	write_dpr(accel, DE_BACKGROUND, bColor);
 
-	de_ctrl = FIELD_VALUE(0, DE_CONTROL, ROP, rop2)         |
-		FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2)    |
-		FIELD_SET(0, DE_CONTROL, COMMAND, HOST_WRITE) |
-		FIELD_SET(0, DE_CONTROL, HOST, MONO)          |
-		FIELD_SET(0, DE_CONTROL, STATUS, START);
+	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) |
+		DE_CONTROL_ROP_SELECT | DE_CONTROL_COMMAND_HOST_WRITE |
+		DE_CONTROL_HOST | DE_CONTROL_STATUS;
 
 	write_dpr(accel, DE_CONTROL, de_ctrl | deGetTransparency(accel));
 
diff --git a/drivers/staging/sm750fb/sm750_accel.h b/drivers/staging/sm750fb/sm750_accel.h
index c38ff450..8fba6e1 100644
--- a/drivers/staging/sm750fb/sm750_accel.h
+++ b/drivers/staging/sm750fb/sm750_accel.h
@@ -39,78 +39,46 @@
 #define DE_DIMENSION_Y_ET_MASK                          0x1fff
 
 #define DE_CONTROL                                      0xC
-#define DE_CONTROL_STATUS                               31:31
-#define DE_CONTROL_STATUS_STOP                          0
-#define DE_CONTROL_STATUS_START                         1
-#define DE_CONTROL_PATTERN                              30:30
-#define DE_CONTROL_PATTERN_MONO                         0
-#define DE_CONTROL_PATTERN_COLOR                        1
-#define DE_CONTROL_UPDATE_DESTINATION_X                 29:29
-#define DE_CONTROL_UPDATE_DESTINATION_X_DISABLE         0
-#define DE_CONTROL_UPDATE_DESTINATION_X_ENABLE          1
-#define DE_CONTROL_QUICK_START                          28:28
-#define DE_CONTROL_QUICK_START_DISABLE                  0
-#define DE_CONTROL_QUICK_START_ENABLE                   1
-#define DE_CONTROL_DIRECTION                            27:27
-#define DE_CONTROL_DIRECTION_LEFT_TO_RIGHT              0
-#define DE_CONTROL_DIRECTION_RIGHT_TO_LEFT              1
-#define DE_CONTROL_MAJOR                                26:26
-#define DE_CONTROL_MAJOR_X                              0
-#define DE_CONTROL_MAJOR_Y                              1
-#define DE_CONTROL_STEP_X                               25:25
-#define DE_CONTROL_STEP_X_POSITIVE                      1
-#define DE_CONTROL_STEP_X_NEGATIVE                      0
-#define DE_CONTROL_STEP_Y                               24:24
-#define DE_CONTROL_STEP_Y_POSITIVE                      1
-#define DE_CONTROL_STEP_Y_NEGATIVE                      0
-#define DE_CONTROL_STRETCH                              23:23
-#define DE_CONTROL_STRETCH_DISABLE                      0
-#define DE_CONTROL_STRETCH_ENABLE                       1
-#define DE_CONTROL_HOST                                 22:22
-#define DE_CONTROL_HOST_COLOR                           0
-#define DE_CONTROL_HOST_MONO                            1
-#define DE_CONTROL_LAST_PIXEL                           21:21
-#define DE_CONTROL_LAST_PIXEL_OFF                       0
-#define DE_CONTROL_LAST_PIXEL_ON                        1
-#define DE_CONTROL_COMMAND                              20:16
-#define DE_CONTROL_COMMAND_BITBLT                       0
-#define DE_CONTROL_COMMAND_RECTANGLE_FILL               1
-#define DE_CONTROL_COMMAND_DE_TILE                      2
-#define DE_CONTROL_COMMAND_TRAPEZOID_FILL               3
-#define DE_CONTROL_COMMAND_ALPHA_BLEND                  4
-#define DE_CONTROL_COMMAND_RLE_STRIP                    5
-#define DE_CONTROL_COMMAND_SHORT_STROKE                 6
-#define DE_CONTROL_COMMAND_LINE_DRAW                    7
-#define DE_CONTROL_COMMAND_HOST_WRITE                   8
-#define DE_CONTROL_COMMAND_HOST_READ                    9
-#define DE_CONTROL_COMMAND_HOST_WRITE_BOTTOM_UP         10
-#define DE_CONTROL_COMMAND_ROTATE                       11
-#define DE_CONTROL_COMMAND_FONT                         12
-#define DE_CONTROL_COMMAND_TEXTURE_LOAD                 15
-#define DE_CONTROL_ROP_SELECT                           15:15
-#define DE_CONTROL_ROP_SELECT_ROP3                      0
-#define DE_CONTROL_ROP_SELECT_ROP2                      1
-#define DE_CONTROL_ROP2_SOURCE                          14:14
-#define DE_CONTROL_ROP2_SOURCE_BITMAP                   0
-#define DE_CONTROL_ROP2_SOURCE_PATTERN                  1
-#define DE_CONTROL_MONO_DATA                            13:12
-#define DE_CONTROL_MONO_DATA_NOT_PACKED                 0
-#define DE_CONTROL_MONO_DATA_8_PACKED                   1
-#define DE_CONTROL_MONO_DATA_16_PACKED                  2
-#define DE_CONTROL_MONO_DATA_32_PACKED                  3
-#define DE_CONTROL_REPEAT_ROTATE                        11:11
-#define DE_CONTROL_REPEAT_ROTATE_DISABLE                0
-#define DE_CONTROL_REPEAT_ROTATE_ENABLE                 1
-#define DE_CONTROL_TRANSPARENCY_MATCH                   10:10
-#define DE_CONTROL_TRANSPARENCY_MATCH_OPAQUE            0
-#define DE_CONTROL_TRANSPARENCY_MATCH_TRANSPARENT       1
-#define DE_CONTROL_TRANSPARENCY_SELECT                  9:9
-#define DE_CONTROL_TRANSPARENCY_SELECT_SOURCE           0
-#define DE_CONTROL_TRANSPARENCY_SELECT_DESTINATION      1
-#define DE_CONTROL_TRANSPARENCY                         8:8
-#define DE_CONTROL_TRANSPARENCY_DISABLE                 0
-#define DE_CONTROL_TRANSPARENCY_ENABLE                  1
-#define DE_CONTROL_ROP                                  7:0
+#define DE_CONTROL_STATUS                               BIT(31)
+#define DE_CONTROL_PATTERN                              BIT(30)
+#define DE_CONTROL_UPDATE_DESTINATION_X                 BIT(29)
+#define DE_CONTROL_QUICK_START                          BIT(28)
+#define DE_CONTROL_DIRECTION                            BIT(27)
+#define DE_CONTROL_MAJOR                                BIT(26)
+#define DE_CONTROL_STEP_X                               BIT(25)
+#define DE_CONTROL_STEP_Y                               BIT(24)
+#define DE_CONTROL_STRETCH                              BIT(23)
+#define DE_CONTROL_HOST                                 BIT(22)
+#define DE_CONTROL_LAST_PIXEL                           BIT(21)
+#define DE_CONTROL_COMMAND_SHIFT                        16
+#define DE_CONTROL_COMMAND_MASK                         (0x1f << 16)
+#define DE_CONTROL_COMMAND_BITBLT                       (0x0 << 16)
+#define DE_CONTROL_COMMAND_RECTANGLE_FILL               (0x1 << 16)
+#define DE_CONTROL_COMMAND_DE_TILE                      (0x2 << 16)
+#define DE_CONTROL_COMMAND_TRAPEZOID_FILL               (0x3 << 16)
+#define DE_CONTROL_COMMAND_ALPHA_BLEND                  (0x4 << 16)
+#define DE_CONTROL_COMMAND_RLE_STRIP                    (0x5 << 16)
+#define DE_CONTROL_COMMAND_SHORT_STROKE                 (0x6 << 16)
+#define DE_CONTROL_COMMAND_LINE_DRAW                    (0x7 << 16)
+#define DE_CONTROL_COMMAND_HOST_WRITE                   (0x8 << 16)
+#define DE_CONTROL_COMMAND_HOST_READ                    (0x9 << 16)
+#define DE_CONTROL_COMMAND_HOST_WRITE_BOTTOM_UP         (0xa << 16)
+#define DE_CONTROL_COMMAND_ROTATE                       (0xb << 16)
+#define DE_CONTROL_COMMAND_FONT                         (0xc << 16)
+#define DE_CONTROL_COMMAND_TEXTURE_LOAD                 (0xe << 16)
+#define DE_CONTROL_ROP_SELECT                           BIT(15)
+#define DE_CONTROL_ROP2_SOURCE                          BIT(14)
+#define DE_CONTROL_MONO_DATA_SHIFT                      12
+#define DE_CONTROL_MONO_DATA_MASK                       (0x3 << 12)
+#define DE_CONTROL_MONO_DATA_NOT_PACKED                 (0x0 << 12)
+#define DE_CONTROL_MONO_DATA_8_PACKED                   (0x1 << 12)
+#define DE_CONTROL_MONO_DATA_16_PACKED                  (0x2 << 12)
+#define DE_CONTROL_MONO_DATA_32_PACKED                  (0x3 << 12)
+#define DE_CONTROL_REPEAT_ROTATE                        BIT(11)
+#define DE_CONTROL_TRANSPARENCY_MATCH                   BIT(10)
+#define DE_CONTROL_TRANSPARENCY_SELECT                  BIT(9)
+#define DE_CONTROL_TRANSPARENCY                         BIT(8)
+#define DE_CONTROL_ROP_MASK                             0xff
 
 /* Pseudo fields. */