rtc: m41t80: add the use of 'BIT' macro

Replace bit shifts by BIT macro.

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 1a769275ab9d87ca39d22d53325ebae84876b910..f991433bbe8b7b648b4d334c434697295c2778b5 100644 (file)
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -52,21 +52,21 @@
 #define M41T80_ALARM_REG_SIZE  \
        (M41T80_REG_ALARM_SEC + 1 - M41T80_REG_ALARM_MON)
 
-#define M41T80_SEC_ST          (1 << 7)        /* ST: Stop Bit */
-#define M41T80_ALMON_AFE       (1 << 7)        /* AFE: AF Enable Bit */
-#define M41T80_ALMON_SQWE      (1 << 6)        /* SQWE: SQW Enable Bit */
-#define M41T80_ALHOUR_HT       (1 << 6)        /* HT: Halt Update Bit */
-#define M41T80_FLAGS_AF                (1 << 6)        /* AF: Alarm Flag Bit */
-#define M41T80_FLAGS_BATT_LOW  (1 << 4)        /* BL: Battery Low Bit */
-#define M41T80_WATCHDOG_RB2    (1 << 7)        /* RB: Watchdog resolution */
-#define M41T80_WATCHDOG_RB1    (1 << 1)        /* RB: Watchdog resolution */
-#define M41T80_WATCHDOG_RB0    (1 << 0)        /* RB: Watchdog resolution */
-
-#define M41T80_FEATURE_HT      (1 << 0)        /* Halt feature */
-#define M41T80_FEATURE_BL      (1 << 1)        /* Battery low indicator */
-#define M41T80_FEATURE_SQ      (1 << 2)        /* Squarewave feature */
-#define M41T80_FEATURE_WD      (1 << 3)        /* Extra watchdog resolution */
-#define M41T80_FEATURE_SQ_ALT  (1 << 4)        /* RSx bits are in reg 4 */
+#define M41T80_SEC_ST          BIT(7)  /* ST: Stop Bit */
+#define M41T80_ALMON_AFE       BIT(7)  /* AFE: AF Enable Bit */
+#define M41T80_ALMON_SQWE      BIT(6)  /* SQWE: SQW Enable Bit */
+#define M41T80_ALHOUR_HT       BIT(6)  /* HT: Halt Update Bit */
+#define M41T80_FLAGS_AF                BIT(6)  /* AF: Alarm Flag Bit */
+#define M41T80_FLAGS_BATT_LOW  BIT(4)  /* BL: Battery Low Bit */
+#define M41T80_WATCHDOG_RB2    BIT(7)  /* RB: Watchdog resolution */
+#define M41T80_WATCHDOG_RB1    BIT(1)  /* RB: Watchdog resolution */
+#define M41T80_WATCHDOG_RB0    BIT(0)  /* RB: Watchdog resolution */
+
+#define M41T80_FEATURE_HT      BIT(0)  /* Halt feature */
+#define M41T80_FEATURE_BL      BIT(1)  /* Battery low indicator */
+#define M41T80_FEATURE_SQ      BIT(2)  /* Squarewave feature */
+#define M41T80_FEATURE_WD      BIT(3)  /* Extra watchdog resolution */
+#define M41T80_FEATURE_SQ_ALT  BIT(4)  /* RSx bits are in reg 4 */
 
 static DEFINE_MUTEX(m41t80_rtc_mutex);
 static const struct i2c_device_id m41t80_id[] = {