From ae6061dbfcb2f49cd717fb235b5d0633e99f2596 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Sun, 17 Jan 2016 20:04:16 +0200 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/staging/sm750fb/ddk750_reg.h | 12 +++--------- drivers/staging/sm750fb/sm750_hw.c | 8 ++++---- 2 files changed, 7 insertions(+), 13 deletions(-) diff --git a/drivers/staging/sm750fb/ddk750_reg.h b/drivers/staging/sm750fb/ddk750_reg.h index 7bbe53a12808..db13bdf6a1dc 100644 --- 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 5754af5b9ddf..425bec886078 100644 --- 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; -- 2.20.1