linux-kernel - Re: [net-next PATCH] net: phy: as21xxx: fill in inband caps and better handle inband

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Message-ID: <68f10f91.050a0220.3778ad.a4b3@mx.google.com>
Date: Thu, 16 Oct 2025 17:30:23 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Andrew Lunn <andrew@...n.ch>, Heiner Kallweit <hkallweit1@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Frank Wunderlich <frank-w@...lic-files.de>
Subject: Re: [net-next PATCH] net: phy: as21xxx: fill in inband caps and
 better handle inband

On Thu, Oct 16, 2025 at 04:23:49PM +0100, Russell King (Oracle) wrote:
> On Thu, Oct 16, 2025 at 05:20:07PM +0200, Christian Marangi wrote:
> > +static int as21xxx_config_inband(struct phy_device *phydev,
> > +				 unsigned int modes)
> > +{
> > +	if (modes == LINK_INBAND_ENABLE)
> > +		return aeon_dpc_ra_enable(phydev);
> 
> So what happens when phylink requests inband to be disabled?
> 
> I really don't like implementations that enable something but then
> provide no way to disable it.
>

On firmware load it's disabled by default. Can phylink ask to disable
inband at runtime?

I will try to check if there is a way to disable it.

> -- 
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!

-- 
	Ansuel