netdev - Re: [PATCH net-next] net: dsa: mv88e6xxx: Correct cmode to PHY_INTERFACE

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Message-ID: <a7a0dc51-c3dd-49e5-b66e-da9ddcc9e071@lunn.ch>
Date:   Tue, 11 Apr 2023 14:48:49 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Vladimir Oltean <vladimir.oltean@....com>,
        David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Russell King <rmk+kernel@...linux.org.uk>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next] net: dsa: mv88e6xxx: Correct cmode to
 PHY_INTERFACE_

> On 4/11/2023 4:38 AM, Vladimir Oltean wrote:
> > On Tue, Apr 11, 2023 at 04:35:41AM +0200, Andrew Lunn wrote:
> > > The switch can either take the MAC or the PHY role in an MII or RMII
> > > link. There are distinct PHY_INTERFACE_ macros for these two roles.
> > > Correct the mapping so that the `REV` version is used for the PHY
> > > role.

> > >   static const u8 mv88e6xxx_phy_interface_modes[] = {
> > > -	[MV88E6XXX_PORT_STS_CMODE_MII_PHY]	= PHY_INTERFACE_MODE_MII,
> > > +	[MV88E6XXX_PORT_STS_CMODE_MII_PHY]	= PHY_INTERFACE_MODE_REVMII,
> 
> Is this hunk correct?

Hi Florian

I don't see why it is wrong, but you can be blind to bugs in your own
code. What do you think is wrong?

Thanks
	Andrew