staging: sm750fb: use BIT macro for DE_STATE2 single-bit fields

Replace complex definition of DE_STATE1 fields and usage of FIELD_GET
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>

diff --git a/drivers/staging/sm750fb/ddk750_reg.h b/drivers/staging/sm750fb/ddk750_reg.h
index 7bbe53a..db13bdf 100644 (file)
--- a/drivers/staging/sm750fb/ddk750_reg.h
+++ b/drivers/staging/sm750fb/ddk750_reg.h
@@ -6,15 +6,9 @@
 #define DE_STATE1_DE_ABORT                               BIT(0)
 
 #define DE_STATE2                                        0x100058
-#define DE_STATE2_DE_FIFO                                3:3
-#define DE_STATE2_DE_FIFO_NOTEMPTY                       0
-#define DE_STATE2_DE_FIFO_EMPTY                          1
-#define DE_STATE2_DE_STATUS                              2:2
-#define DE_STATE2_DE_STATUS_IDLE                         0
-#define DE_STATE2_DE_STATUS_BUSY                         1
-#define DE_STATE2_DE_MEM_FIFO                            1:1
-#define DE_STATE2_DE_MEM_FIFO_NOTEMPTY                   0
-#define DE_STATE2_DE_MEM_FIFO_EMPTY                      1
+#define DE_STATE2_DE_FIFO_EMPTY                          BIT(3)
+#define DE_STATE2_DE_STATUS_BUSY                         BIT(2)
+#define DE_STATE2_DE_MEM_FIFO_EMPTY                      BIT(1)
 #define DE_STATE2_DE_RESERVED                            0:0
 
 

diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
index 5754af5..425bec8 100644 (file)
--- a/drivers/staging/sm750fb/sm750_hw.c
+++ b/drivers/staging/sm750fb/sm750_hw.c
@@ -493,15 +493,15 @@ void hw_sm750_initAccel(struct sm750_dev *sm750_dev)
 int hw_sm750le_deWait(void)
 {
        int i = 0x10000000;
+       unsigned int mask = DE_STATE2_DE_STATUS_BUSY | DE_STATE2_DE_FIFO_EMPTY |
+               DE_STATE2_DE_MEM_FIFO_EMPTY;
 
        while (i--) {
                unsigned int val = PEEK32(DE_STATE2);
 
-               if ((FIELD_GET(val, DE_STATE2, DE_STATUS) == DE_STATE2_DE_STATUS_IDLE) &&
-                   (FIELD_GET(val, DE_STATE2, DE_FIFO) == DE_STATE2_DE_FIFO_EMPTY) &&
-                   (FIELD_GET(val, DE_STATE2, DE_MEM_FIFO) == DE_STATE2_DE_MEM_FIFO_EMPTY)) {
+               if ((val & mask) ==
+                   (DE_STATE2_DE_FIFO_EMPTY | DE_STATE2_DE_MEM_FIFO_EMPTY))
                        return 0;
-               }
        }
        /* timeout error */
        return -1;