netdev - Re: [PATCH net-next] net: phy: continue searching for C45 MMDs even if first returned ffff:ffff

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Date:   Thu, 16 Jul 2020 22:12:10 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, linux@...linux.org.uk,
        f.fainelli@...il.com, hkallweit1@...il.com, claudiu.manoil@....com,
        alexandru.marginean@....com, ioana.ciornei@....com,
        michael@...le.cc
Subject: Re: [PATCH net-next] net: phy: continue searching for C45 MMDs even
 if first returned ffff:ffff

> Then the rest of the code just carried on thinking "ok, MMD 1 (PMA/PMD)
> says that there are 31 devices in that package, each having a device id
> of ffff:ffff, that's perfectly fine, let's go ahead and probe this PHY
> device".

With a device ID of ffff:ffff, what PHY driver was getting loaded?

> - MDIO_DEVS1=0x008a, MDIO_DEVS2=0x0000,
> - MDIO_DEVID1=0x0083, MDIO_DEVID2=0xe400

Now that we have valid IDs, is the same driver getting loaded? Do this
ID adding somewhere?

> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew