linux-kernel - [PATCH v4 07/11] hwmon: (amc6821) Use BIT() and GENMASK()

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Message-Id: <20240705213547.1155690-8-linux@roeck-us.net>
Date: Fri,  5 Jul 2024 14:35:43 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: linux-hwmon@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Farouk Bouabid <farouk.bouabid@...rry.de>,
	Quentin Schulz <quentin.schulz@...rry.de>,
	Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH v4 07/11] hwmon: (amc6821) Use BIT() and GENMASK()

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.

No functional change intended.

Reviewed-by: Quentin Schulz <quentin.schulz@...rry.de>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
v4: Fix subject (amc6821, not amc2821)

v3: Add Quentin's Reviewed-by: tag

v2: Fix definition of AMC6821_CONF1_FDRC1 in this patch

 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 bb20ccde5fea..546e79ce93b9 100644
--- a/drivers/hwmon/amc6821.c
+++ b/drivers/hwmon/amc6821.c
@@ -8,6 +8,7 @@
  * Copyright (C) 2007 Hans J. Koch <hjk@...sjkoch.de>
  */
 
+#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(6)
+#define AMC6821_CONF1_THERMOVIE		BIT(7)
 
-#define AMC6821_CONF2_PWM_EN		0x01
-#define AMC6821_CONF2_TACH_MODE		0x02
-#define AMC6821_CONF2_TACH_EN		0x04
-#define AMC6821_CONF2_RTFIE		0x08
-#define AMC6821_CONF2_LTOIE		0x10
-#define AMC6821_CONF2_RTOIE		0x20
-#define AMC6821_CONF2_PSVIE		0x40
-#define AMC6821_CONF2_RST		0x80
+#define AMC6821_CONF2_PWM_EN		BIT(0)
+#define AMC6821_CONF2_TACH_MODE		BIT(1)
+#define AMC6821_CONF2_TACH_EN		BIT(2)
+#define AMC6821_CONF2_RTFIE		BIT(3)
+#define AMC6821_CONF2_LTOIE		BIT(4)
+#define AMC6821_CONF2_RTOIE		BIT(5)
+#define AMC6821_CONF2_PSVIE		BIT(6)
+#define AMC6821_CONF2_RST		BIT(7)
 
-#define AMC6821_CONF3_THERM_FAN_EN	0x80
-#define AMC6821_CONF3_REV_MASK		0x0F
+#define AMC6821_CONF3_THERM_FAN_EN	BIT(7)
+#define AMC6821_CONF3_REV_MASK		GENMASK(3, 0)
 
-#define AMC6821_CONF4_OVREN		0x10
-#define AMC6821_CONF4_TACH_FAST		0x20
-#define AMC6821_CONF4_PSPR		0x40
-#define AMC6821_CONF4_MODE		0x80
+#define AMC6821_CONF4_OVREN		BIT(4)
+#define AMC6821_CONF4_TACH_FAST		BIT(5)
+#define AMC6821_CONF4_PSPR		BIT(6)
+#define AMC6821_CONF4_MODE		BIT(7)
 
-#define AMC6821_STAT1_RPM_ALARM		0x01
-#define AMC6821_STAT1_FANS		0x02
-#define AMC6821_STAT1_RTH		0x04
-#define AMC6821_STAT1_RTL		0x08
-#define AMC6821_STAT1_R_THERM		0x10
-#define AMC6821_STAT1_RTF		0x20
-#define AMC6821_STAT1_LTH		0x40
-#define AMC6821_STAT1_LTL		0x80
+#define AMC6821_STAT1_RPM_ALARM		BIT(0)
+#define AMC6821_STAT1_FANS		BIT(1)
+#define AMC6821_STAT1_RTH		BIT(2)
+#define AMC6821_STAT1_RTL		BIT(3)
+#define AMC6821_STAT1_R_THERM		BIT(4)
+#define AMC6821_STAT1_RTF		BIT(5)
+#define AMC6821_STAT1_LTH		BIT(6)
+#define AMC6821_STAT1_LTL		BIT(7)
 
-#define AMC6821_STAT2_RTC		0x08
-#define AMC6821_STAT2_LTC		0x10
-#define AMC6821_STAT2_LPSV		0x20
-#define AMC6821_STAT2_L_THERM		0x40
-#define AMC6821_STAT2_THERM_IN		0x80
+#define AMC6821_STAT2_RTC		BIT(3)
+#define AMC6821_STAT2_LTC		BIT(4)
+#define AMC6821_STAT2_LPSV		BIT(5)
+#define AMC6821_STAT2_L_THERM		BIT(6)
+#define AMC6821_STAT2_THERM_IN		BIT(7)
 
 enum {IDX_TEMP1_INPUT = 0, IDX_TEMP1_MIN, IDX_TEMP1_MAX,
 	IDX_TEMP1_CRIT, IDX_TEMP2_INPUT, IDX_TEMP2_MIN,
-- 
2.39.2