netdev - Re: [PATCH net-next v4 6/6] net: dsa: mv88e6xxx: fully support SERDES on Topaz family

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Message-ID: <20190826193125.4c94662e@nic.cz>
Date:   Mon, 26 Aug 2019 19:31:25 +0200
From:   Marek Behun <marek.behun@....cz>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org, Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>
Subject: Re: [PATCH net-next v4 6/6] net: dsa: mv88e6xxx: fully support
 SERDES on Topaz family

On Mon, 26 Aug 2019 17:38:30 +0200
Andrew Lunn <andrew@...n.ch> wrote:

> > +static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
> > +				    phy_interface_t mode, bool allow_over_2500,
> > +				    bool make_cmode_writable)  
> 
> I don't like these two parameters. The caller of this function can do
> the check for allow_over_2500 and error out before calling this.
> 
> Is make_cmode_writable something that could be done once at probe and
> then forgotten about? Or is it needed before every write? At least
> move it into the specific port_set_cmode() that requires it.
> 
> Thanks
> 	Andrew

Btw those two additional parameters were modeled as in
  static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip,
                                      int port, int speed, bool alt_bit,
                                      bool force_bit);