RE: [EXT] Re: [1/3] rtc/fsl: support flextimer for lx2160a

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> 
> On Fri, 2019-08-23 at 17:57 +0800, Biwen Li wrote:
> > The patch supports flextimer for lx2160a
> >
> > Signed-off-by: Biwen Li <biwen.li@xxxxxxx>
> > ---
> >  drivers/rtc/rtc-fsl-ftm-alarm.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-
> > ftm-alarm.c index 4f7259c2d6a3..2b81525f6db8 100644
> > --- a/drivers/rtc/rtc-fsl-ftm-alarm.c
> > +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c
> > @@ -313,6 +313,7 @@ static const struct of_device_id ftm_rtc_match[] =
> > {
> >       { .compatible = "fsl,ls1088a-ftm-alarm", },
> >       { .compatible = "fsl,ls208xa-ftm-alarm", },
> >       { .compatible = "fsl,ls1028a-ftm-alarm", },
> > +     { .compatible = "fsl,lx2160a-ftm-alarm", },
> >       { },
> >  };
> >
> 
> Since there's no data associated with each compatible, it doesn't seem like
> there's any need to add a new one.
> 
> What's normally done is add two compatibles in the dts, the base version and
> the specific version, e.g.:
> 
> +               rcpm: rcpm@1e34040 {
> +                       compatible = "fsl,lx2160a-rcpm",
> + "fsl,qoriq-cpm-2.1+";
> 
> Or in this case, compatible = "fsl,lx2160a-ftm-alarm", "fsl,ls1088a-ftm-alarm";
> 
> Then there's no need to add to the driver list.
Yes, it will be work. But it will be confusing. Is ls1088a same with lx2160a? No.




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