drivers/rtc/rtc-pl031.c: remove RTC timer interrupt handling
authorRajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Tue, 29 May 2012 22:07:40 +0000 (15:07 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 29 May 2012 23:22:34 +0000 (16:22 -0700)
Remove RTT interrupt handling, since PIE mode interrupts are now better
emulated in generic code via an hrtimer we have no need for this, and
there is no codepath in the driver that enables these periodic interrupts
anyway.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Mattias Wallin <mattias.wallin@stericsson.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>
drivers/rtc/rtc-pl031.c

index f027c06..cc05339 100644 (file)
@@ -220,17 +220,9 @@ static irqreturn_t pl031_interrupt(int irq, void *dev_id)
        unsigned long events = 0;
 
        rtcmis = readl(ldata->base + RTC_MIS);
-       if (rtcmis) {
-               writel(rtcmis, ldata->base + RTC_ICR);
-
-               if (rtcmis & RTC_BIT_AI)
-                       events |= (RTC_AF | RTC_IRQF);
-
-               /* Timer interrupt is only available in ST variants */
-               if ((rtcmis & RTC_BIT_PI) &&
-                       (ldata->hw_designer == AMBA_VENDOR_ST))
-                       events |= (RTC_PF | RTC_IRQF);
-
+       if (rtcmis & RTC_BIT_AI) {
+               writel(RTC_BIT_AI, ldata->base + RTC_ICR);
+               events |= (RTC_AF | RTC_IRQF);
                rtc_update_irq(ldata->rtc, 1, events);
 
                return IRQ_HANDLED;