[PATCH net 5/5] net: pcs: rzn1-miic: Init RX clock early if MAC requires it

Romain Gantois romain.gantois at bootlin.com
Wed Jan 3 07:45:48 PST 2024


Hello Russel,

On Wed, 3 Jan 2024, Russell King (Oracle) wrote:
...
> Since the MAC driver has to itself provide the PCS to phylink via the
> mac_select_pcs() method, the MAC driver already has knowledge of which
> PCS it is going to be using. Therefore, I think it may make sense
> to do something like this:
> 
> int phylink_pcs_preconfig(struct phylink *pl, struct phylink_pcs *pcs)
> {
> 	if (pl->config->mac_requires_rxc)
> 		pcs->rxc_always_on = true;
> 
> 	if (pcs->ops->preconfig)
> 		pcs->ops->pcs_preconfig(pcs);
> }
> 
> and have stmmac call phylink_pcs_preconfig() for each PCS that it will
> be using during initialisation / resume paths?

Yes, that is definitely a much cleaner solution. I'll reimplement the PCS 
changes in this way.

Best Regards,

-- 
Romain Gantois, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com



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