[PATCH v7 8/8] iio: magnetometer: ak8975: make use of the macros from bits.h

[Joshua Crofts via B4 Relay]

From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

Make use of BIT() and GENMASK() where it makes sense.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
Co-developed-by: Joshua Crofts <joshua.crofts1@xxxxxxxxx>
Signed-off-by: Joshua Crofts <joshua.crofts1@xxxxxxxxx>
---
 drivers/iio/magnetometer/ak8975.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index d87a98090c991508ac835839286da0371d689cd8..d8fbdc5debc1cc65ea6e86167a79c860d019cc32 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -45,8 +45,7 @@
 #define AK8975_REG_INFO			0x01
 
 #define AK8975_REG_ST1			0x02
-#define AK8975_REG_ST1_DRDY_SHIFT	0
-#define AK8975_REG_ST1_DRDY_MASK	(1 << AK8975_REG_ST1_DRDY_SHIFT)
+#define AK8975_REG_ST1_DRDY_MASK	BIT(0)
 
 #define AK8975_REG_HXL			0x03
 #define AK8975_REG_HXH			0x04
@@ -55,15 +54,12 @@
 #define AK8975_REG_HZL			0x07
 #define AK8975_REG_HZH			0x08
 #define AK8975_REG_ST2			0x09
-#define AK8975_REG_ST2_DERR_SHIFT	2
-#define AK8975_REG_ST2_DERR_MASK	(1 << AK8975_REG_ST2_DERR_SHIFT)
+#define AK8975_REG_ST2_DERR_MASK	BIT(2)
 
-#define AK8975_REG_ST2_HOFL_SHIFT	3
-#define AK8975_REG_ST2_HOFL_MASK	(1 << AK8975_REG_ST2_HOFL_SHIFT)
+#define AK8975_REG_ST2_HOFL_MASK	BIT(3)
 
 #define AK8975_REG_CNTL			0x0A
-#define AK8975_REG_CNTL_MODE_SHIFT	0
-#define AK8975_REG_CNTL_MODE_MASK	(0xF << AK8975_REG_CNTL_MODE_SHIFT)
+#define AK8975_REG_CNTL_MODE_MASK	GENMASK(3, 0)
 #define AK8975_REG_CNTL_MODE_POWER_DOWN	0x00
 #define AK8975_REG_CNTL_MODE_ONCE	0x01
 #define AK8975_REG_CNTL_MODE_SELF_TEST	0x08
@@ -95,8 +91,7 @@
 
 #define AK09912_REG_ST1			0x10
 
-#define AK09912_REG_ST1_DRDY_SHIFT	0
-#define AK09912_REG_ST1_DRDY_MASK	(1 << AK09912_REG_ST1_DRDY_SHIFT)
+#define AK09912_REG_ST1_DRDY_MASK	BIT(0)
 
 #define AK09912_REG_HXL			0x11
 #define AK09912_REG_HXH			0x12
@@ -107,8 +102,7 @@
 #define AK09912_REG_TMPS		0x17
 
 #define AK09912_REG_ST2			0x18
-#define AK09912_REG_ST2_HOFL_SHIFT	3
-#define AK09912_REG_ST2_HOFL_MASK	(1 << AK09912_REG_ST2_HOFL_SHIFT)
+#define AK09912_REG_ST2_HOFL_MASK	BIT(3)
 
 #define AK09912_REG_CNTL1		0x30
 
@@ -117,8 +111,7 @@
 #define AK09912_REG_CNTL_MODE_ONCE	0x01
 #define AK09912_REG_CNTL_MODE_SELF_TEST	0x10
 #define AK09912_REG_CNTL_MODE_FUSE_ROM	0x1F
-#define AK09912_REG_CNTL2_MODE_SHIFT	0
-#define AK09912_REG_CNTL2_MODE_MASK	(0x1F << AK09912_REG_CNTL2_MODE_SHIFT)
+#define AK09912_REG_CNTL2_MODE_MASK	GENMASK(4, 0)
 
 #define AK09912_REG_CNTL3		0x32
 
@@ -848,7 +841,10 @@ static const struct iio_chan_spec ak8975_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(AK8975_SCAN_TS),
 };
 
-static const unsigned long ak8975_scan_masks[] = { 0x7, 0 };
+static const unsigned long ak8975_scan_masks[] = {
+	BIT(AK8975_SCAN_X) | BIT(AK8975_SCAN_Y) | BIT(AK8975_SCAN_Z),
+	0
+};
 
 static const struct iio_info ak8975_info = {
 	.read_raw = &ak8975_read_raw,

-- 
2.47.3