rtc: at91rm9200 fixes

Fix two new-ish runtime warnings in the at91rm9200 (etc) RTC:

 Platform driver 'at91_rtc' needs updating - please use dev_pm_ops
 	... by just switching

 IRQ 1/at91_rtc: IRQF_DISABLED is not guaranteed on shared IRQs
 	... no longer needed now that rtc_update_irq() changed

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 15 insertions, 9 deletions

diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index b5bf93706913..bc8bbca9a2e2 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -289,7 +289,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
                                         AT91_RTC_CALEV);
 
         ret = request_irq(AT91_ID_SYS, at91_rtc_interrupt,
-                                IRQF_DISABLED | IRQF_SHARED,
+                                IRQF_SHARED,
                                 "at91_rtc", pdev);
         if (ret) {
                 printk(KERN_ERR "at91_rtc: IRQ %d already in use.\n",
@@ -340,7 +340,7 @@ static int __exit at91_rtc_remove(struct platform_device *pdev)
 
 static u32 at91_rtc_imr;
 
-static int at91_rtc_suspend(struct platform_device *pdev, pm_message_t state)
+static int at91_rtc_suspend(struct device *dev)
 {
         /* this IRQ is shared with DBGU and other hardware which isn't
          * necessarily doing PM like we are...
@@ -348,7 +348,7 @@ static int at91_rtc_suspend(struct platform_device *pdev, pm_message_t state)
         at91_rtc_imr = at91_sys_read(AT91_RTC_IMR)
                         & (AT91_RTC_ALARM|AT91_RTC_SECEV);
         if (at91_rtc_imr) {
-                if (device_may_wakeup(&pdev->dev))
+                if (device_may_wakeup(dev))
                         enable_irq_wake(AT91_ID_SYS);
                 else
                         at91_sys_write(AT91_RTC_IDR, at91_rtc_imr);
@@ -356,28 +356,34 @@ static int at91_rtc_suspend(struct platform_device *pdev, pm_message_t state)
         return 0;
 }
 
-static int at91_rtc_resume(struct platform_device *pdev)
+static int at91_rtc_resume(struct device *dev)
 {
         if (at91_rtc_imr) {
-                if (device_may_wakeup(&pdev->dev))
+                if (device_may_wakeup(dev))
                         disable_irq_wake(AT91_ID_SYS);
                 else
                         at91_sys_write(AT91_RTC_IER, at91_rtc_imr);
         }
         return 0;
 }
+
+static const struct dev_pm_ops at91_rtc_pm = {
+        .suspend =      at91_rtc_suspend,
+        .resume =       at91_rtc_resume,
+};
+
+#define at91_rtc_pm_ptr &at91_rtc_pm
+
 #else
-#define at91_rtc_suspend NULL
-#define at91_rtc_resume  NULL
+#define at91_rtc_pm_ptr NULL
 #endif
 
 static struct platform_driver at91_rtc_driver = {
         .remove         = __exit_p(at91_rtc_remove),
-        .suspend        = at91_rtc_suspend,
-        .resume         = at91_rtc_resume,
         .driver         = {
                 .name   = "at91_rtc",
                 .owner  = THIS_MODULE,
+                .pm     = at91_rtc_pm_ptr,
         },
 };