Re: [net-next PATCH v11 9/9] net: phy: Add Airoha AN8855 Internal Switch Gigabit PHY

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On Tue, Dec 10, 2024 at 01:10:45PM +0100, Christian Marangi wrote:
> On Tue, Dec 10, 2024 at 02:36:29AM +0100, Andrew Lunn wrote:
> > > +config AIR_AN8855_PHY
> > > +	tristate "Airoha AN8855 Internal Gigabit PHY"
> > > +	help
> > > +	  Currently supports the internal Airoha AN8855 Switch PHY.
> > > +
> > >  config AIR_EN8811H_PHY
> > >  	tristate "Airoha EN8811H 2.5 Gigabit PHY"
> > >  	help
> > 
> > Do you have any idea why the new one is AN, and previous one is EN?  I
> > just like consistent naming, or an explanation why it is not
> > consistent.
> >
> 
> EN EcoNet that was then absorbed by Airoha (AN). Hence it's the same
> thing. Airoha is suggesting to use AN for new submission. So it's just
> about timing.

Thanks for the explanation.

> 
> > > +#define AN8855_PHY_ID				0xc0ff0410
> > > +static struct phy_driver an8855_driver[] = {
> > > +{
> > > +	PHY_ID_MATCH_EXACT(AN8855_PHY_ID),
> > 
> > Is there any documentation about the ID, and the lower nibble. Given
> > it is 0, i'm wondering if PHY_ID_MATCH_EXACT() is correct.
> >
> 
> I will check this but I doubt there is any explaination. These are internal
> to the switch so my theory is that no exact logic was applied.

O.K. It can always be changed later, if a different revision of the
PHY appears.

	Andrew




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