This patch replaces bit shifting on 1 with the BIT(x) macro
as it's extensively used by other function in this driver.
This was done with coccinelle:
@@ int g; @@
-(1 << g)
+BIT(g)
Signed-off-by: Shraddha Barke <shraddha.6...@gmail.com>
---
drivers/staging/iio/impedance-analyzer/ad5933.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c
b/drivers/staging/iio/impedance-analyzer/ad5933.c
index c18109c..48acad0 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -39,7 +39,7 @@
#define AD5933_REG_IMAG_DATA 0x96 /* R, 2 bytes*/
/* AD5933_REG_CONTROL_HB Bits */
-#define AD5933_CTRL_INIT_START_FREQ (0x1 << 4)
+#define AD5933_CTRL_INIT_START_FREQ BIT(4)
#define AD5933_CTRL_START_SWEEP (0x2 << 4)
#define AD5933_CTRL_INC_FREQ (0x3 << 4)
#define AD5933_CTRL_REPEAT_FREQ (0x4 << 4)
@@ -48,23 +48,23 @@
#define AD5933_CTRL_STANDBY (0xB << 4)
#define AD5933_CTRL_RANGE_2000mVpp (0x0 << 1)
-#define AD5933_CTRL_RANGE_200mVpp (0x1 << 1)
+#define AD5933_CTRL_RANGE_200mVpp BIT(1)
#define AD5933_CTRL_RANGE_400mVpp (0x2 << 1)
#define AD5933_CTRL_RANGE_1000mVpp (0x3 << 1)
#define AD5933_CTRL_RANGE(x) ((x) << 1)
-#define AD5933_CTRL_PGA_GAIN_1 (0x1 << 0)
+#define AD5933_CTRL_PGA_GAIN_1 BIT(0)
#define AD5933_CTRL_PGA_GAIN_5 (0x0 << 0)
/* AD5933_REG_CONTROL_LB Bits */
-#define AD5933_CTRL_RESET (0x1 << 4)
+#define AD5933_CTRL_RESET BIT(4)
#define AD5933_CTRL_INT_SYSCLK (0x0 << 3)
-#define AD5933_CTRL_EXT_SYSCLK (0x1 << 3)
+#define AD5933_CTRL_EXT_SYSCLK BIT(3)
/* AD5933_REG_STATUS Bits */
-#define AD5933_STAT_TEMP_VALID (0x1 << 0)
-#define AD5933_STAT_DATA_VALID (0x1 << 1)
-#define AD5933_STAT_SWEEP_DONE (0x1 << 2)
+#define AD5933_STAT_TEMP_VALID BIT(0)
+#define AD5933_STAT_DATA_VALID BIT(1)
+#define AD5933_STAT_SWEEP_DONE BIT(2)
/* I2C Block Commands */
#define AD5933_I2C_BLOCK_WRITE 0xA0
@@ -222,7 +222,7 @@ static int ad5933_set_freq(struct ad5933_state *st,
u8 d8[4];
} dat;
- freqreg = (u64) freq * (u64) (1 << 27);
+ freqreg = (u64) freq * (u64) BIT(27);
do_div(freqreg, st->mclk_hz / 4);
switch (reg) {
@@ -308,7 +308,7 @@ static ssize_t ad5933_show_frequency(struct device *dev,
freqreg = be32_to_cpu(dat.d32) & 0xFFFFFF;
freqreg = (u64) freqreg * (u64) (st->mclk_hz / 4);
- do_div(freqreg, 1 << 27);
+ do_div(freqreg, BIT(27));
return sprintf(buf, "%d\n", (int) freqreg);
}
@@ -437,7 +437,7 @@ static ssize_t ad5933_store(struct device *dev,
/* 2x, 4x handling, see datasheet */
if (val > 511)
- val = (val >> 1) | (1 << 9);
+ val = (val >> 1) | BIT(9);
else if (val > 1022)
val = (val >> 2) | (3 << 9);
--
2.1.4
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