Re: [PATCH 1/2] mmc: omap_hsmmc: Add support for slot-name property in DT

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On Friday 15 May 2015 23:22:37 Pali Rohár wrote:
> On Friday 15 May 2015 23:19:44 Arnd Bergmann wrote:
> > On Friday 15 May 2015 23:14:48 Pali Rohár wrote:
> > > diff --git a/drivers/mmc/host/omap_hsmmc.c
> > > b/drivers/mmc/host/omap_hsmmc.c index 9df2b68..f6073dd 100644
> > > --- a/drivers/mmc/host/omap_hsmmc.c
> > > +++ b/drivers/mmc/host/omap_hsmmc.c
> > > @@ -1901,6 +1901,8 @@ static struct omap_hsmmc_platform_data
> > > *of_get_hsmmc_pdata(struct device *dev)
> > > 
> > >         if (of_find_property(np, "ti,needs-special-hs-handling",
> > >         NULL))
> > >         
> > >                 pdata->features |= HSMMC_HAS_HSPE_SUPPORT;
> > > 
> > > +       of_property_read_string(np, "slot-name", &pdata->name);
> > > +
> > > 
> > >         return pdata;
> > >  
> > >  }
> > 
> > This property needs to be documented in
> > Documentation/devicetree/bindings/mmc/mmc.txt and preferably the
> > implementation moved into mmc_of_parse.
> > 
> > We should not have an interface like this specific to one driver.
> > 
> >       Arnd
> 
> Interface is already present for platform data code (which do not use 
> DT). So "pdata->name" is not DT specific...
> 

The driver can of course keep providing the name from platform_data where
that is used. All I was saying is that when you introduce a DT property,
it should not be specific to that driver.

	Arnd
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