netdev - Re: [PATCH net-next 1/2] net: dsa: mv88e6xxx: fix RGMII-ID port setup

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Date:   Mon, 12 Aug 2019 12:23:16 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Marek Behún <marek.behun@....cz>,
        netdev@...r.kernel.org
Cc:     Heiner Kallweit <hkallweit1@...il.com>,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH net-next 1/2] net: dsa: mv88e6xxx: fix RGMII-ID port setup

Hello!

On 11.08.2019 18:08, Marek Behún wrote:

> The mv88e6xxx_port_setup_mac looks if one of the {link, speed, duplex}
> parameters is being changed from the current setting, and if not, does
> not do anything. This test is wrong in some situations: this method also
> has the mode argument, which can also be changed.
> 
> For example on Turris Omnia, the mode is PHY_INTERFACE_MODE_RGMII_ID,
> which has to be set byt the ->port_set_rgmii_delay method. The test does

    s/byt/by/?

> not look if mode is being changed (in fact there is currently no method
> to determine port mode as phy_interface_t type).
> 
> The simplest solution seems to be to drop this test altogether and
> simply do the setup when requested.
> 
> Signed-off-by: Marek Behún <marek.behun@....cz>
> Cc: Heiner Kallweit <hkallweit1@...il.com>
> Cc: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
> Cc: Vivien Didelot <vivien.didelot@...il.com>
> Cc: Andrew Lunn <andrew@...n.ch>
> Cc: Florian Fainelli <f.fainelli@...il.com>
> Cc: David S. Miller <davem@...emloft.net>
[...]

MBR, Sergei