linux-kernel - RE: [EXT] Re: rtc: fsl-ftm-alarm: add shutdown interface

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Date:   Tue, 15 Sep 2020 10:35:12 +0000
From:   Biwen Li <biwen.li@....com>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        "Biwen Li (OSS)" <biwen.li@....nxp.com>
CC:     Leo Li <leoyang.li@....com>,
        "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jiafei Pan <jiafei.pan@....com>
Subject: RE: [EXT] Re: rtc: fsl-ftm-alarm: add shutdown interface

> 
> Hi,
> 
> On 30/03/2020 18:44:01+0200, Alexandre Belloni wrote:
> > On 30/03/2020 20:26:16+0800, Biwen Li wrote:
> > > From: Biwen Li <biwen.li@....com>
> > >
> > > Add shutdown interface
> > >
> > > Signed-off-by: Biwen Li <biwen.li@....com>
> > > ---
> > >  drivers/rtc/rtc-fsl-ftm-alarm.c | 10 ++++++++++
> > >  1 file changed, 10 insertions(+)
> > >
> > > diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c
> > > b/drivers/rtc/rtc-fsl-ftm-alarm.c index d7fa6c16f47b..118a775e8316
> > > 100644
> > > --- a/drivers/rtc/rtc-fsl-ftm-alarm.c
> > > +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c
> > > @@ -307,6 +307,15 @@ static int ftm_rtc_probe(struct platform_device
> *pdev)
> > >     return 0;
> > >  }
> > >
> > > +static void ftm_rtc_shutdown(struct platform_device *pdev) {
> > > +   struct ftm_rtc *rtc = platform_get_drvdata(pdev);
> > > +
> > > +   ftm_irq_acknowledge(rtc);
> > > +   ftm_irq_disable(rtc);
> > > +   ftm_clean_alarm(rtc);
> >
> > If the alarm is able to start the platform, then you probably don't
> > want to disable the alarm on shutdown.
> >
> 
> I realise you never replied to that question. Is that patch still of interest?
Hi Alex, you can drop it. Thanks.
Best Regards,
Biwen Li
> 
> --
> Alexandre Belloni, Bootlin
> Embedded Linux and Kernel engineering
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbootlin.c
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