Hi Guenter,
On 6/28/24 5:13 PM, Guenter Roeck wrote:
Use BIT() and GENMASK() for bit and mask definitions
to help distinguish bit and mask definitions from other
defines and to make the code easier to read.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/amc6821.c | 71 +++++++++++++++++++++--------------------
1 file changed, 36 insertions(+), 35 deletions(-)
diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c
index 03ce2e3ffd86..042e2044de7b 100644
--- a/drivers/hwmon/amc6821.c
+++ b/drivers/hwmon/amc6821.c
@@ -8,6 +8,7 @@
* Copyright (C) 2007 Hans J. Koch <hjk@xxxxxxxxxxxx>
*/
+#include <linux/bits.h>
#include <linux/err.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
@@ -68,46 +69,46 @@ enum chips { amc6821 };
#define AMC6821_REG_TACH_SETTINGL 0x1e
#define AMC6821_REG_TACH_SETTINGH 0x1f
-#define AMC6821_CONF1_START 0x01
-#define AMC6821_CONF1_FAN_INT_EN 0x02
-#define AMC6821_CONF1_FANIE 0x04
-#define AMC6821_CONF1_PWMINV 0x08
-#define AMC6821_CONF1_FAN_FAULT_EN 0x10
-#define AMC6821_CONF1_FDRC0 0x20
-#define AMC6821_CONF1_FDRC1 0x40
-#define AMC6821_CONF1_THERMOVIE 0x80
+#define AMC6821_CONF1_START BIT(0)
+#define AMC6821_CONF1_FAN_INT_EN BIT(1)
+#define AMC6821_CONF1_FANIE BIT(2)
+#define AMC6821_CONF1_PWMINV BIT(3)
+#define AMC6821_CONF1_FAN_FAULT_EN BIT(4)
+#define AMC6821_CONF1_FDRC0 BIT(5)
+#define AMC6821_CONF1_FDRC1 BIT(7)
Should be BIT(6) here if I'm not mistaken.
The rest looks fine to me. We could also start to use FIELD_GET,
FIELD_PREP, ... instead of manually shifting and masking in-code.
Cheers,
Quentin
