staging: sm750fb: use BIT macro for DE_STATE1 single-bit field

Replace complex definition of DE_STATE1 field and usage of FIELD_SET with
BIT() macro and open-coded register value modifications
Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/ddk750_reg.h

@@ -3,9 +3,7 @@
 
 /* New register for SM750LE */
 #define DE_STATE1                                        0x100054
-#define DE_STATE1_DE_ABORT                               0:0
-#define DE_STATE1_DE_ABORT_OFF                           0
-#define DE_STATE1_DE_ABORT_ON                            1
+#define DE_STATE1_DE_ABORT                               BIT(0)
 
 #define DE_STATE2                                        0x100058
 #define DE_STATE2_DE_FIFO                                3:3

drivers/staging/sm750fb/sm750_hw.c

@@ -468,11 +468,11 @@ void hw_sm750_initAccel(struct sm750_dev *sm750_dev)
 
 	if (getChipType() == SM750LE) {
 		reg = PEEK32(DE_STATE1);
-		reg = FIELD_SET(reg, DE_STATE1, DE_ABORT, ON);
+		reg |= DE_STATE1_DE_ABORT;
 		POKE32(DE_STATE1, reg);
 
 		reg = PEEK32(DE_STATE1);
-		reg = FIELD_SET(reg, DE_STATE1, DE_ABORT, OFF);
+		reg &= ~DE_STATE1_DE_ABORT;
 		POKE32(DE_STATE1, reg);
 
 	} else {