rtc-tx4939: drop IRQF_SHARED

IRQF_SHARED should not be used with IRQF_DISABLED.  This RTC have a
dedicated irq line to SoC's internal interrupt controller so there is
no reason to use IRQF_SHARED.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-tx4939.c

@@ -261,10 +261,8 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev)
 
 	tx4939_rtc_cmd(pdata->rtcreg, TX4939_RTCCTL_COMMAND_NOP);
 	if (devm_request_irq(&pdev->dev, irq, tx4939_rtc_interrupt,
-			     IRQF_DISABLED | IRQF_SHARED,
-			     pdev->name, &pdev->dev) < 0) {
+			     IRQF_DISABLED, pdev->name, &pdev->dev) < 0)
 		return -EBUSY;
-	}
 	rtc = rtc_device_register(pdev->name, &pdev->dev,
 				  &tx4939_rtc_ops, THIS_MODULE);
 	if (IS_ERR(rtc))