[Patch v1] rtc: fix for the DA9052 rtc device registration

[Patch v1] rtc: fix for the DA9052 rtc device registration

[Ashish Jangam]

DA9052/53 MFD core handles only virtual irq therefore rtc driver needs
to be updated to work on virtual irq. Without this update DA9052/53 rtc 
driver will fail during its registration.
Also getting irq by it name is no longer supported in DA9052/53 core.

Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
---
 drivers/rtc/rtc-da9052.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-da9052.c b/drivers/rtc/rtc-da9052.c
index 60b826e..e22c950 100644
--- a/drivers/rtc/rtc-da9052.c
+++ b/drivers/rtc/rtc-da9052.c
@@ -239,10 +239,10 @@ static int da9052_rtc_probe(struct platform_device *pdev)
 
 	rtc->da9052 = dev_get_drvdata(pdev->dev.parent);
 	platform_set_drvdata(pdev, rtc);
-	rtc->irq = platform_get_irq_byname(pdev, "ALM");
-	ret = request_threaded_irq(rtc->irq, NULL, da9052_rtc_irq,
-				   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-				   "ALM", rtc);
+	rtc->irq =  DA9052_IRQ_ALARM;
+
+	ret = da9052_request_irq(rtc->da9052, rtc->irq, "ALM",
+				da9052_rtc_irq, rtc);
 	if (ret != 0) {
 		rtc_err(rtc->da9052, "irq registration failed: %d\n", ret);
 		return ret;
-- 
1.7.1

Re: [Patch v1] rtc: fix for the DA9052 rtc device registration

[Andrew Morton]

On Fri, 15 Mar 2013 13:59:39 +0530 Ashish Jangam <ashish.jangam@kpitcummins.com> wrote:

> DA9052/53 MFD core handles only virtual irq therefore rtc driver needs
> to be updated to work on virtual irq. Without this update DA9052/53 rtc 
> driver will fail during its registration.
> Also getting irq by it name is no longer supported in DA9052/53 core.
> 
> ...
>
> --- a/drivers/rtc/rtc-da9052.c
> +++ b/drivers/rtc/rtc-da9052.c
> @@ -239,10 +239,10 @@ static int da9052_rtc_probe(struct platform_device *pdev)
>  
>  	rtc->da9052 = dev_get_drvdata(pdev->dev.parent);
>  	platform_set_drvdata(pdev, rtc);
> -	rtc->irq = platform_get_irq_byname(pdev, "ALM");
> -	ret = request_threaded_irq(rtc->irq, NULL, da9052_rtc_irq,
> -				   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
> -				   "ALM", rtc);
> +	rtc->irq =  DA9052_IRQ_ALARM;
> +
> +	ret = da9052_request_irq(rtc->da9052, rtc->irq, "ALM",
> +				da9052_rtc_irq, rtc);
>  	if (ret != 0) {
>  		rtc_err(rtc->da9052, "irq registration failed: %d\n", ret);
>  		return ret;

drivers/rtc/rtc-da9052.c was converted to use
devm_request_threaded_irq() after linux-3.8, so I cannot apply this
patch to mainline.  Can you please prepare a patch against 3.9-rc3?

Do you believe that the patch should be backported into -stable
kernels?  If so, Greg will need a different version of it - ie, the one
you have just sent.  Please send that to him at the appropriate time
(say, when you see me drop the 3.9-rc3 version from the -mm tree).

Re: [Patch v1] rtc: fix for the DA9052 rtc device registration

[Ashish Jangam]

On Mon, 2013-03-18 at 15:21 -0700, Andrew Morton wrote:
> On Fri, 15 Mar 2013 13:59:39 +0530 Ashish Jangam <ashish.jangam@kpitcummins.com> wrote:
> 
> > DA9052/53 MFD core handles only virtual irq therefore rtc driver needs
> > to be updated to work on virtual irq. Without this update DA9052/53 rtc 
> > driver will fail during its registration.
> > Also getting irq by it name is no longer supported in DA9052/53 core.
> > 
> > ...
> >
> > --- a/drivers/rtc/rtc-da9052.c
> > +++ b/drivers/rtc/rtc-da9052.c
> > @@ -239,10 +239,10 @@ static int da9052_rtc_probe(struct platform_device *pdev)
> >  
> >  	rtc->da9052 = dev_get_drvdata(pdev->dev.parent);
> >  	platform_set_drvdata(pdev, rtc);
> > -	rtc->irq = platform_get_irq_byname(pdev, "ALM");
> > -	ret = request_threaded_irq(rtc->irq, NULL, da9052_rtc_irq,
> > -				   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
> > -				   "ALM", rtc);
> > +	rtc->irq =  DA9052_IRQ_ALARM;
> > +
> > +	ret = da9052_request_irq(rtc->da9052, rtc->irq, "ALM",
> > +				da9052_rtc_irq, rtc);
> >  	if (ret != 0) {
> >  		rtc_err(rtc->da9052, "irq registration failed: %d\n", ret);
> >  		return ret;
> 
> drivers/rtc/rtc-da9052.c was converted to use
> devm_request_threaded_irq() after linux-3.8, so I cannot apply this
> patch to mainline.  Can you please prepare a patch against 3.9-rc3?
Yes.
> 
> Do you believe that the patch should be backported into -stable
> kernels?  If so, Greg will need a different version of it - ie, the one
> you have just sent.  Please send that to him at the appropriate time
> (say, when you see me drop the 3.9-rc3 version from the -mm tree).
Ok, I will do the necessary.