Re: [RFC PATCH v2 6/8] mmc: core: set card fwnode_handle

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On Fri, Mar 08, 2024 at 08:04:54AM +0000, Avri Altman wrote:
>  
> > Set fwnode in case it isn't set yet and of_node is present.
> > 
> > Signed-off-by: Daniel Golle <daniel@xxxxxxxxxxxxxx>
> > ---
> >  drivers/mmc/core/bus.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index
> > 0ddaee0eae54f..e1c5fc1b3ce4b 100644
> > --- a/drivers/mmc/core/bus.c
> > +++ b/drivers/mmc/core/bus.c
> > @@ -364,6 +364,8 @@ int mmc_add_card(struct mmc_card *card)
> > 
> >         mmc_add_card_debugfs(card);
> >         card->dev.of_node = mmc_of_find_child_device(card->host, 0);
> > +       if (card->dev.of_node && !card->dev.fwnode)
> > +               card->dev.fwnode = &card->dev.of_node->fwnode;
> Should this be restricted to eMMC only, or is it fine to be called for SD as well?

It's always odd to have of_node set and fwnode unset. And also SD
cards can be referenced in device tree, resulting in of_node being set
but fwnode being unpopulated, which is no more or less weird than for
an eMMC.

So imho it should always be called and shouldn't hurt.




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