Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6-omap-h63xx.git] / drivers / rtc / rtc-s3c.c

diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index f406a2b55aea829b48e05b53180e40e8b1a48a04..f26e0cad8f167c5221fd5a480c42e7f2fcdb2baa 100644 (file)
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -20,6 +20,7 @@
 #include <linux/rtc.h>
 #include <linux/bcd.h>
 #include <linux/clk.h>
+#include <linux/log2.h>
 
 #include <asm/hardware.h>
 #include <asm/uaccess.h>
@@ -29,7 +30,7 @@
 
 #include <asm/mach/time.h>
 
-#include <asm/arch/regs-rtc.h>
+#include <asm/plat-s3c/regs-rtc.h>
 
 /* I have yet to find an S3C implementation with more than one
  * of these rtc blocks in */
@@ -50,7 +51,7 @@ static irqreturn_t s3c_rtc_alarmirq(int irq, void *id)
 {
        struct rtc_device *rdev = id;
 
-       rtc_update_irq(&rdev->class_dev, 1, RTC_AF | RTC_IRQF);
+       rtc_update_irq(rdev, 1, RTC_AF | RTC_IRQF);
        return IRQ_HANDLED;
 }
 
@@ -58,7 +59,7 @@ static irqreturn_t s3c_rtc_tickirq(int irq, void *id)
 {
        struct rtc_device *rdev = id;
 
-       rtc_update_irq(&rdev->class_dev, tick_count++, RTC_PF | RTC_IRQF);
+       rtc_update_irq(rdev, tick_count++, RTC_PF | RTC_IRQF);
        return IRQ_HANDLED;
 }
 
@@ -67,7 +68,7 @@ static void s3c_rtc_setaie(int to)
 {
        unsigned int tmp;
 
-       pr_debug("%s: aie=%d\n", __FUNCTION__, to);
+       pr_debug("%s: aie=%d\n", __func__, to);
 
        tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN;
 
@@ -81,7 +82,7 @@ static void s3c_rtc_setpie(int to)
 {
        unsigned int tmp;
 
-       pr_debug("%s: pie=%d\n", __FUNCTION__, to);
+       pr_debug("%s: pie=%d\n", __func__, to);
 
        spin_lock_irq(&s3c_rtc_pie_lock);
        tmp = readb(s3c_rtc_base + S3C2410_TICNT) & ~S3C2410_TICNT_ENABLE;
@@ -309,9 +310,7 @@ static int s3c_rtc_ioctl(struct device *dev,
                break;
 
        case RTC_IRQP_SET:
-               /* check for power of 2 */
-
-               if ((arg & (arg-1)) != 0 || arg < 1) {
+               if (!is_power_of_2(arg)) {
                        ret = -EINVAL;
                        goto exit;
                }
@@ -350,7 +349,7 @@ static int s3c_rtc_open(struct device *dev)
        int ret;
 
        ret = request_irq(s3c_rtc_alarmno, s3c_rtc_alarmirq,
-                         SA_INTERRUPT,  "s3c2410-rtc alarm", rtc_dev);
+                         IRQF_DISABLED,  "s3c2410-rtc alarm", rtc_dev);
 
        if (ret) {
                dev_err(dev, "IRQ%d error %d\n", s3c_rtc_alarmno, ret);
@@ -358,7 +357,7 @@ static int s3c_rtc_open(struct device *dev)
        }
 
        ret = request_irq(s3c_rtc_tickno, s3c_rtc_tickirq,
-                         SA_INTERRUPT,  "s3c2410-rtc tick", rtc_dev);
+                         IRQF_DISABLED,  "s3c2410-rtc tick", rtc_dev);
 
        if (ret) {
                dev_err(dev, "IRQ%d error %d\n", s3c_rtc_tickno, ret);
@@ -458,7 +457,7 @@ static int s3c_rtc_probe(struct platform_device *pdev)
        struct resource *res;
        int ret;
 
-       pr_debug("%s: probe=%p\n", __FUNCTION__, pdev);
+       pr_debug("%s: probe=%p\n", __func__, pdev);
 
        /* find the IRQs */
 
@@ -542,43 +541,19 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 
 /* RTC Power management control */
 
-static struct timespec s3c_rtc_delta;
-
 static int ticnt_save;
 
 static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state)
 {
-       struct rtc_time tm;
-       struct timespec time;
-
-       time.tv_nsec = 0;
-
        /* save TICNT for anyone using periodic interrupts */
-
        ticnt_save = readb(s3c_rtc_base + S3C2410_TICNT);
-
-       /* calculate time delta for suspend */
-
-       s3c_rtc_gettime(&pdev->dev, &tm);
-       rtc_tm_to_time(&tm, &time.tv_sec);
-       save_time_delta(&s3c_rtc_delta, &time);
        s3c_rtc_enable(pdev, 0);
-
        return 0;
 }
 
 static int s3c_rtc_resume(struct platform_device *pdev)
 {
-       struct rtc_time tm;
-       struct timespec time;
-
-       time.tv_nsec = 0;
-
        s3c_rtc_enable(pdev, 1);
-       s3c_rtc_gettime(&pdev->dev, &tm);
-       rtc_tm_to_time(&tm, &time.tv_sec);
-       restore_time_delta(&s3c_rtc_delta, &time);
-
        writeb(ticnt_save, s3c_rtc_base + S3C2410_TICNT);
        return 0;
 }
@@ -617,3 +592,4 @@ module_exit(s3c_rtc_exit);
 MODULE_DESCRIPTION("Samsung S3C RTC Driver");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c2410-rtc");