linux-kernel - Re: [rtc-linux] [PATCH] rtc: driver for the DryIce block found in i.MX25 chips

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Message-ID: <AANLkTimtgqEU3M9rMEqGZuwuNHUD9yxMx70XlLWxkQ3F@mail.gmail.com>
Date:	Mon, 7 Jun 2010 14:20:25 +0800
From:	Wan ZongShun <mcuos.com@...il.com>
To:	Baruch Siach <baruch@...s.co.il>
Cc:	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
	Alessandro Zummo <a.zummo@...ertech.it>
Subject: Re: [rtc-linux] [PATCH] rtc: driver for the DryIce block found in 
	i.MX25 chips

2010/6/7 Baruch Siach <baruch@...s.co.il>:
> Hi Wan,
>
> On Sat, Jun 05, 2010 at 11:08:46PM +0800, Wan ZongShun wrote:
>> Some minor comments below:
>
> One question though.
>
>> > +/*
>> > + * read the seconds portion of the current time from the dryice time counter
>> > + */
>> > +static int dryice_rtc_read_time(struct device *dev, struct rtc_time *tm)
>> > +{
>> > +       struct imxdi_dev *imxdi = dev_get_drvdata(dev);
>> > +       unsigned long now;
>> > +
>> > +       now = __raw_readl(imxdi->ioaddr + DTCMR);
>> > +       rtc_time_to_tm(now, tm);
>> > +
>>
>> When we want to return a tm value, call rtc_valid_tm() to check the tm
>> that is a good habit.
>
> Isn't rtc_time_to_tm() guaranteed to produce a valid tm value?
>

Yes, it can.

>>
>> > +       return 0;
>> > +}
>
> baruch
>
> --
>                                                     ~. .~   Tk Open Systems
> =}------------------------------------------------ooO--U--Ooo------------{=
>   - baruch@...s.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -
>

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