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rtc-vr41xx: Fix do_div() warning

Message ID 20091018213415.b712d027.yuasa@linux-mips.org
State Accepted, archived
Headers show

Commit Message

Yoichi Yuasa Oct. 18, 2009, 12:34 p.m. UTC
drivers/rtc/rtc-vr41xx.c: In function 'vr41xx_rtc_irq_set_freq':
drivers/rtc/rtc-vr41xx.c:217: warning: comparison of distinct pointer types lacks a cast
drivers/rtc/rtc-vr41xx.c:217: warning: right shift count >= width of type
drivers/rtc/rtc-vr41xx.c:217: warning: passing argument 1 of '__div64_32' from incompatible pointer type
include/asm-generic/div64.h:35: note: expected 'uint64_t *' but argument is of type 'long unsigned int *'

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>

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diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index 2c839d0..fadddac 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -209,19 +209,18 @@  static int vr41xx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
 static int vr41xx_rtc_irq_set_freq(struct device *dev, int freq)
-	unsigned long count;
+	u64 count;
 	if (!is_power_of_2(freq))
 		return -EINVAL;
 	count = RTC_FREQUENCY;
 	do_div(count, freq);
-	periodic_count = count;
-	rtc1_write(RTCL1LREG, count);
-	rtc1_write(RTCL1HREG, count >> 16);
+	periodic_count = count;
+	rtc1_write(RTCL1LREG, periodic_count);
+	rtc1_write(RTCL1HREG, periodic_count >> 16);