netdev - Re: [PATCH RFC net-next 1/6] net: phy: realtek: configure SerDes mode for rtl822x/8251b PHYs

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Date: Thu, 29 Feb 2024 13:50:10 +0100
From: Marek Behún <kabel@...nel.org>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Eric Woudstra <ericwouds@...il.com>, 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>, Frank Wunderlich
 <frank-w@...lic-files.de>, Daniel Golle <daniel@...rotopia.org>,
 netdev@...r.kernel.org, Alexander Couzens <lynxis@...0.eu>
Subject: Re: [PATCH RFC net-next 1/6] net: phy: realtek: configure SerDes
 mode for rtl822x/8251b PHYs

On Tue, 27 Feb 2024 10:36:05 +0000
"Russell King (Oracle)" <linux@...linux.org.uk> wrote:

> > +	ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0x75f3, 0);
> > +	if (ret < 0)
> > +		return ret;  
> 
> It would be nice to know what this is doing.

No documentation for this from Realtek, I guess this was just taken
from SDK originally.

Marek