#include <asm/uaccess.h>
#include <asm/io.h>
#include <asm/irq.h>
-#include <asm/plat-s3c/regs-rtc.h>
+#include <plat/regs-rtc.h>
/* I have yet to find an S3C implementation with more than one
* of these rtc blocks in */
{
unsigned int tmp;
+ if (!is_power_of_2(freq))
+ return -EINVAL;
+
spin_lock_irq(&s3c_rtc_pie_lock);
tmp = readb(s3c_rtc_base + S3C2410_TICNT) & S3C2410_TICNT_ENABLE;