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path: root/drivers/rtc/rtc-mv.c
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Diffstat (limited to 'drivers/rtc/rtc-mv.c')
-rw-r--r--drivers/rtc/rtc-mv.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c
index 423762241042..7f50d2ef7f6e 100644
--- a/drivers/rtc/rtc-mv.c
+++ b/drivers/rtc/rtc-mv.c
@@ -10,6 +10,7 @@
#include <linux/kernel.h>
#include <linux/rtc.h>
#include <linux/bcd.h>
+#include <linux/bitops.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/of.h>
@@ -24,7 +25,7 @@
#define RTC_MINUTES_OFFS 8
#define RTC_HOURS_OFFS 16
#define RTC_WDAY_OFFS 24
-#define RTC_HOURS_12H_MODE (1 << 22) /* 12 hours mode */
+#define RTC_HOURS_12H_MODE BIT(22) /* 12 hour mode */
#define RTC_DATE_REG_OFFS 4
#define RTC_MDAY_OFFS 0
@@ -33,7 +34,7 @@
#define RTC_ALARM_TIME_REG_OFFS 8
#define RTC_ALARM_DATE_REG_OFFS 0xc
-#define RTC_ALARM_VALID (1 << 7)
+#define RTC_ALARM_VALID BIT(7)
#define RTC_ALARM_INTERRUPT_MASK_REG_OFFS 0x10
#define RTC_ALARM_INTERRUPT_CASUE_REG_OFFS 0x14
@@ -77,7 +78,7 @@ static int mv_rtc_read_time(struct device *dev, struct rtc_time *tm)
second = rtc_time & 0x7f;
minute = (rtc_time >> RTC_MINUTES_OFFS) & 0x7f;
- hour = (rtc_time >> RTC_HOURS_OFFS) & 0x3f; /* assume 24 hours mode */
+ hour = (rtc_time >> RTC_HOURS_OFFS) & 0x3f; /* assume 24 hour mode */
wday = (rtc_time >> RTC_WDAY_OFFS) & 0x7;
day = rtc_date & 0x3f;
@@ -108,7 +109,7 @@ static int mv_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
second = rtc_time & 0x7f;
minute = (rtc_time >> RTC_MINUTES_OFFS) & 0x7f;
- hour = (rtc_time >> RTC_HOURS_OFFS) & 0x3f; /* assume 24 hours mode */
+ hour = (rtc_time >> RTC_HOURS_OFFS) & 0x3f; /* assume 24 hour mode */
wday = (rtc_time >> RTC_WDAY_OFFS) & 0x7;
day = rtc_date & 0x3f;
@@ -239,10 +240,10 @@ static int __init mv_rtc_probe(struct platform_device *pdev)
if (!IS_ERR(pdata->clk))
clk_prepare_enable(pdata->clk);
- /* make sure the 24 hours mode is enabled */
+ /* make sure the 24 hour mode is enabled */
rtc_time = readl(pdata->ioaddr + RTC_TIME_REG_OFFS);
if (rtc_time & RTC_HOURS_12H_MODE) {
- dev_err(&pdev->dev, "24 Hours mode not supported.\n");
+ dev_err(&pdev->dev, "12 Hour mode is enabled but not supported.\n");
ret = -EINVAL;
goto out;
}