The IRQ line connected to RTC blocks are often shared with a timer device
which request the IRQ with IRQF_NO_SUSPEND.
Since the RTC drivers are correctly disabling IRQs when entering suspend
we can safely request the IRQ with IRQF_SUSPEND_NOACTION so that irq core
can suspend this specific handler.
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
---
drivers/rtc/rtc-at91rm9200.c | 2 +-
drivers/rtc/rtc-at91sam9.c | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 70a5d94..0ed504f 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -401,7 +401,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
AT91_RTC_CALEV);
ret = devm_request_irq(&pdev->dev, irq, at91_rtc_interrupt,
- IRQF_SHARED,
+ IRQF_SHARED | IRQF_SUSPEND_NOACTION,
"at91_rtc", pdev);
if (ret) {
dev_err(&pdev->dev, "IRQ %d already in use.\n", irq);
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 6b9aaf1..e7f8eed 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -421,7 +421,8 @@ static int at91_rtc_probe(struct platform_device *pdev)
/* register irq handler after we know what name we'll use */
ret = devm_request_irq(&pdev->dev, rtc->irq, at91_rtc_interrupt,
- IRQF_SHARED, dev_name(&rtc->rtcdev->dev), rtc);
+ IRQF_SHARED | IRQF_SUSPEND_NOACTION,
+ dev_name(&rtc->rtcdev->dev), rtc);
if (ret) {
dev_dbg(&pdev->dev, "can't share IRQ %d?\n", rtc->irq);
return ret;
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
