Commit d677772e authored Mar 02, 2015 by Boris Brezillon Committed by Rafael J. Wysocki Mar 06, 2015

watchdog: at91sam9: request the irq with IRQF_NO_SUSPEND

The watchdog interrupt (only used when activating software watchdog)
shouldn't be suspended when entering suspend mode, because it is shared
with a timer device (which request the line with IRQF_NO_SUSPEND) and once
the watchdog "Mode Register" has been written, it cannot be changed (which
means we cannot disable the watchdog interrupt when entering suspend).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 947f5b10

drivers/watchdog/at91sam9_wdt.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -208,7 +208,8 @@ static int at91_wdt_init(struct platform_device pdev, struct at91wdt wdt)

		if ((tmp & AT91_WDT_WDFIEN) && wdt->irq) {
		err = request_irq(wdt->irq, wdt_interrupt,
		IRQF_SHARED \| IRQF_IRQPOLL,
		IRQF_SHARED \| IRQF_IRQPOLL \|
		IRQF_NO_SUSPEND,
		pdev->name, wdt);
		if (err)
		return err;