mfd: rtc-twl4030 driver

[safe/jmp/linux-2.6] / drivers / rtc / rtc-sa1100.c

diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index ee253cc..66a9bb8 100644 (file)
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -31,12 +31,11 @@
 #include <linux/pm.h>
 #include <linux/bitops.h>
 
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 
 #ifdef CONFIG_ARCH_PXA
-#include <asm/arch/pxa-regs.h>
+#include <mach/pxa-regs.h>
 #endif
 
 #define TIMER_FREQ             CLOCK_TICK_RATE
@@ -47,6 +46,42 @@ static unsigned long rtc_freq = 1024;
 static struct rtc_time rtc_alarm;
 static DEFINE_SPINLOCK(sa1100_rtc_lock);
 
+static inline int rtc_periodic_alarm(struct rtc_time *tm)
+{
+       return  (tm->tm_year == -1) ||
+               ((unsigned)tm->tm_mon >= 12) ||
+               ((unsigned)(tm->tm_mday - 1) >= 31) ||
+               ((unsigned)tm->tm_hour > 23) ||
+               ((unsigned)tm->tm_min > 59) ||
+               ((unsigned)tm->tm_sec > 59);
+}
+
+/*
+ * Calculate the next alarm time given the requested alarm time mask
+ * and the current time.
+ */
+static void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc_time *alrm)
+{
+       unsigned long next_time;
+       unsigned long now_time;
+
+       next->tm_year = now->tm_year;
+       next->tm_mon = now->tm_mon;
+       next->tm_mday = now->tm_mday;
+       next->tm_hour = alrm->tm_hour;
+       next->tm_min = alrm->tm_min;
+       next->tm_sec = alrm->tm_sec;
+
+       rtc_tm_to_time(now, &now_time);
+       rtc_tm_to_time(next, &next_time);
+
+       if (next_time < now_time) {
+               /* Advance one day */
+               next_time += 60 * 60 * 24;
+               rtc_time_to_tm(next_time, next);
+       }
+}
+
 static int rtc_update_alarm(struct rtc_time *alrm)
 {
        struct rtc_time alarm_tm, now_tm;
@@ -331,14 +366,14 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
                RCNR = 0;
        }
 
+       device_init_wakeup(&pdev->dev, 1);
+
        rtc = rtc_device_register(pdev->name, &pdev->dev, &sa1100_rtc_ops,
                                THIS_MODULE);
 
        if (IS_ERR(rtc))
                return PTR_ERR(rtc);
 
-       device_init_wakeup(&pdev->dev, 1);
-
        platform_set_drvdata(pdev, rtc);
 
        return 0;
@@ -399,3 +434,4 @@ module_exit(sa1100_rtc_exit);
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
 MODULE_DESCRIPTION("SA11x0/PXA2xx Realtime Clock Driver (RTC)");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:sa1100-rtc");