[PATCH v2 2/4] rtc: Add support for the MediaTek MT2712 RTC

Alexandre Belloni alexandre.belloni at bootlin.com
Thu Aug 22 05:46:28 PDT 2019


On 22/08/2019 20:34:14+0800, Ran Bi wrote:
> > > +	/* RTC need POWERKEY1/2 match, then goto normal work mode */
> > > +	mt2712_writel(rtc, MT2712_POWERKEY1, MT2712_POWERKEY1_KEY);
> > > +	mt2712_writel(rtc, MT2712_POWERKEY2, MT2712_POWERKEY2_KEY);
> > 
> > This should be written when setting the time after power was lost.
> > 
> 
> I suppose we can move this into mt2712_rtc_read_time function's "if
> (p1 != MT2712_POWERKEY1_KEY || p2 != MT2712_POWERKEY2_KEY)" condition
> which will be added at next patch. We need additional flag to mark this
> condition or another if condition in mt2712_rtc_set_time fucntion if we
> put these code in mt2712_rtc_set_time function.
> 

It is fine to test both in read_time and in set_time.

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com



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