Use more straight-forward definitions for multi-bit fields of MISC_CTRL
register and use open-coded implementation for register manipulations.
Signed-off-by: Mike Rapoport <mike.rapop...@gmail.com>
---
drivers/staging/sm750fb/ddk750_chip.c | 2 +-
drivers/staging/sm750fb/ddk750_reg.h | 28 ++++++++++++++--------------
2 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/staging/sm750fb/ddk750_chip.c
b/drivers/staging/sm750fb/ddk750_chip.c
index 08b4905..36c2e50 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -178,7 +178,7 @@ unsigned int ddk750_getVMSize(void)
POKE32(MODE0_GATE, reg);
/* get frame buffer size from GPIO */
- reg = FIELD_GET(PEEK32(MISC_CTRL), MISC_CTRL, LOCALMEM_SIZE);
+ reg = PEEK32(MISC_CTRL) & MISC_CTRL_LOCALMEM_SIZE_MASK;
switch (reg) {
case MISC_CTRL_LOCALMEM_SIZE_8M:
data = SZ_8M; break; /* 8 Mega byte */
diff --git a/drivers/staging/sm750fb/ddk750_reg.h
b/drivers/staging/sm750fb/ddk750_reg.h
index 6df5076..72eaf19 100644
--- a/drivers/staging/sm750fb/ddk750_reg.h
+++ b/drivers/staging/sm750fb/ddk750_reg.h
@@ -43,24 +43,24 @@
#define MISC_CTRL 0x000004
#define MISC_CTRL_DRAM_RERESH_COUNT BIT(27)
-#define MISC_CTRL_DRAM_REFRESH_TIME 26:25
-#define MISC_CTRL_DRAM_REFRESH_TIME_8 0
-#define MISC_CTRL_DRAM_REFRESH_TIME_16 1
-#define MISC_CTRL_DRAM_REFRESH_TIME_32 2
-#define MISC_CTRL_DRAM_REFRESH_TIME_64 3
+#define MISC_CTRL_DRAM_REFRESH_TIME_MASK (0x3 << 25)
+#define MISC_CTRL_DRAM_REFRESH_TIME_8 (0x0 << 25)
+#define MISC_CTRL_DRAM_REFRESH_TIME_16 (0x1 << 25)
+#define MISC_CTRL_DRAM_REFRESH_TIME_32 (0x2 << 25)
+#define MISC_CTRL_DRAM_REFRESH_TIME_64 (0x3 << 25)
#define MISC_CTRL_INT_OUTPUT_INVERT BIT(24)
#define MISC_CTRL_PLL_CLK_COUNT BIT(23)
#define MISC_CTRL_DAC_POWER_OFF BIT(20)
#define MISC_CTRL_CLK_SELECT_TESTCLK BIT(16)
-#define MISC_CTRL_DRAM_COLUMN_SIZE 15:14
-#define MISC_CTRL_DRAM_COLUMN_SIZE_256 0
-#define MISC_CTRL_DRAM_COLUMN_SIZE_512 1
-#define MISC_CTRL_DRAM_COLUMN_SIZE_1024 2
-#define MISC_CTRL_LOCALMEM_SIZE 13:12
-#define MISC_CTRL_LOCALMEM_SIZE_8M 3
-#define MISC_CTRL_LOCALMEM_SIZE_16M 0
-#define MISC_CTRL_LOCALMEM_SIZE_32M 1
-#define MISC_CTRL_LOCALMEM_SIZE_64M 2
+#define MISC_CTRL_DRAM_COLUMN_SIZE_MASK (0x3 << 14)
+#define MISC_CTRL_DRAM_COLUMN_SIZE_256 (0x0 << 14)
+#define MISC_CTRL_DRAM_COLUMN_SIZE_512 (0x1 << 14)
+#define MISC_CTRL_DRAM_COLUMN_SIZE_1024 (0x2 << 14)
+#define MISC_CTRL_LOCALMEM_SIZE_MASK (0x3 << 12)
+#define MISC_CTRL_LOCALMEM_SIZE_8M (0x3 << 12)
+#define MISC_CTRL_LOCALMEM_SIZE_16M (0x0 << 12)
+#define MISC_CTRL_LOCALMEM_SIZE_32M (0x1 << 12)
+#define MISC_CTRL_LOCALMEM_SIZE_64M (0x2 << 12)
#define MISC_CTRL_DRAM_TWTR BIT(11)
#define MISC_CTRL_DRAM_TWR BIT(10)
#define MISC_CTRL_DRAM_TRP BIT(9)
--
1.9.1
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