rtc-at91sam9 fixes

Updates to the at91sam9 rtt-as-rtc driver:

 - Bugfix:  IRQ enable bits need shifting before masking with status
 - Platform code to initialize wakeup bits didn't get merged; cope

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Justin Waters <justin.waters@timesys.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index bbf10ecf416c..56728a2a3385 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -274,7 +274,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *_rtc)
          * SR clears it, so we must only read it in this irq handler!
          */
         mr = rtt_readl(rtc, MR) & (AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN);
-        sr = rtt_readl(rtc, SR) & mr;
+        sr = rtt_readl(rtc, SR) & (mr >> 16);
         if (!sr)
                 return IRQ_NONE;
 
@@ -321,6 +321,10 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
         if (!rtc)
                 return -ENOMEM;
 
+        /* platform setup code should have handled this; sigh */
+        if (!device_can_wakeup(&pdev->dev))
+                device_init_wakeup(&pdev->dev, 1);
+
         platform_set_drvdata(pdev, rtc);
         rtc->rtt = (void __force __iomem *) (AT91_VA_BASE_SYS - AT91_BASE_SYS);
         rtc->rtt += r->start;