linux-kernel - Re: [PATCH net-next v3 2/8] net: dsa: vsc73xx: convert to PHYLINK

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Message-ID: <CAJN1KkyoZ-716TvPYbOb8RtREeFy+74Ge2aAm5XBUFxhyXj9sw@mail.gmail.com>
Date:   Tue, 3 Oct 2023 23:50:11 +0200
From:   Paweł Dembicki <paweldembicki@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Vladimir Oltean <olteanv@...il.com>,
        "Russell King (Oracle)" <linux@...linux.org.uk>,
        netdev@...r.kernel.org, Dan Carpenter <dan.carpenter@...aro.org>,
        Simon Horman <simon.horman@...igine.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v3 2/8] net: dsa: vsc73xx: convert to PHYLINK

wt., 3 paź 2023 o 23:32 Andrew Lunn <andrew@...n.ch> napisał(a):
>
> > I plan to make rgmii delays configurable from the device tree. Should I?
> > a. switch to phy_interface_is_rgmii in the current patch?
> > b. add another patch in this series?
> > c. wait with change to phy_interface_is_rgmii for patch with rgmii
> > delays configuration?
>
> Do you actually need this feature? Does the PHY you are using already
> support fine tuning of the delays?
>

After Vladimir answer I know that it should be a separate change.
I need it for MAC <-> switch connection, the rgmii port connected to
the cpu. At this moment, rgmii delays are hardcoded in vsc73xx_setup
and it should be tunable for the p2020rdb board. I plan to work on it
after the driver becomes usable.