* [PATCH] rtc: ds1307: Use irq when available for wakeup-source device
@ 2016-04-19 16:23 Nishanth Menon
2016-04-19 22:56 ` Alexandre Belloni
0 siblings, 1 reply; 2+ messages in thread
From: Nishanth Menon @ 2016-04-19 16:23 UTC (permalink / raw)
To: Alexandre Belloni, Alessandro Zummo
Cc: linux-kernel, rtc-linux, linux-omap, linux-arm-kernel,
Nishanth Menon, Michael Lange
With commit 8bc2a40730ec ("rtc: ds1307: add support for the
DT property 'wakeup-source'") we lost the ability for rtc irq
functionality for devices that are actually hooked on a real IRQ
line and have capability to wakeup as well. This is not an expected
behavior. So, instead of just not requesting IRQ, skip the IRQ
requirement only if interrupts are not defined for the device.
Fixes: 8bc2a40730ec ("rtc: ds1307: add support for the DT property 'wakeup-source'")
Reported-by: Tony Lindgren <tony@atomide.com>
Cc: Michael Lange <linuxstuff@milaw.biz>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
---
drivers/rtc/rtc-ds1307.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index b2156ee5bae1..74cd5cd544ee 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -1531,7 +1531,7 @@ read_rtc:
return PTR_ERR(ds1307->rtc);
}
- if (ds1307_can_wakeup_device) {
+ if (ds1307_can_wakeup_device && ds1307->client->irq <= 0) {
/* Disable request for an IRQ */
want_irq = false;
dev_info(&client->dev, "'wakeup-source' is set, request for an IRQ is disabled!\n");
--
2.8.0
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] rtc: ds1307: Use irq when available for wakeup-source device
2016-04-19 16:23 [PATCH] rtc: ds1307: Use irq when available for wakeup-source device Nishanth Menon
@ 2016-04-19 22:56 ` Alexandre Belloni
0 siblings, 0 replies; 2+ messages in thread
From: Alexandre Belloni @ 2016-04-19 22:56 UTC (permalink / raw)
To: Nishanth Menon
Cc: Alessandro Zummo, linux-kernel, rtc-linux, linux-omap,
linux-arm-kernel, Michael Lange
On 19/04/2016 at 11:23:54 -0500, Nishanth Menon wrote :
> With commit 8bc2a40730ec ("rtc: ds1307: add support for the
> DT property 'wakeup-source'") we lost the ability for rtc irq
> functionality for devices that are actually hooked on a real IRQ
> line and have capability to wakeup as well. This is not an expected
> behavior. So, instead of just not requesting IRQ, skip the IRQ
> requirement only if interrupts are not defined for the device.
>
> Fixes: 8bc2a40730ec ("rtc: ds1307: add support for the DT property 'wakeup-source'")
> Reported-by: Tony Lindgren <tony@atomide.com>
> Cc: Michael Lange <linuxstuff@milaw.biz>
> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
> Signed-off-by: Nishanth Menon <nm@ti.com>
> ---
>
> drivers/rtc/rtc-ds1307.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
Applied, thanks.
--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-04-19 22:56 ` Alexandre Belloni
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