drivers/rtc/rtc-pl031.c: remove RTC timer interrupt handling

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>

1 files changed, 3 insertions, 11 deletions

diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index f027c063fb20..cc0533994f6e 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -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;