netdev - Re: [PATCH net-next] net: phy: remove Kconfig symbol MDIO

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Message-ID: <5ecf2ece-683b-4c7b-a648-aca82d5843ed@lunn.ch>
Date: Wed, 7 May 2025 14:49:05 +0200
From: Andrew Lunn <andrew@...n.ch>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Heiner Kallweit <hkallweit1@...il.com>, Paolo Abeni <pabeni@...hat.com>,
	Jakub Kicinski <kuba@...nel.org>,
	David Miller <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Claudiu Manoil <claudiu.manoil@....com>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Wei Fang <wei.fang@....com>, Clark Wang <xiaoning.wang@....com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	imx@...ts.linux.dev
Subject: Re: [PATCH net-next] net: phy: remove Kconfig symbol MDIO_DEVRES

On Wed, May 07, 2025 at 11:46:08AM +0100, Russell King (Oracle) wrote:
> On Wed, May 07, 2025 at 08:17:17AM +0200, Heiner Kallweit wrote:
> > MDIO_DEVRES is only set where PHYLIB/PHYLINK are set which
> > select MDIO_DEVRES. So we can remove this symbol.
> 
> Does it make sense for mdio_devres to be a separate module from libphy?

I _think_ Broadcom have one MDIO bus master which is not used for
PHYs/Switches but regulators or GPIOs or something. In theory, you
could build a kernel without networking, but still use those
regulators or GPIOs. But given that Broadcom SoCs are all about
networking, it does seem like a very unlikely situation.

	Andrew