netdev - Re: [PATCH net-next 1/1] net: dsa: qca8k: Fix internal PHY MDIO address

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Date:   Thu, 21 Mar 2019 20:55:55 +0100
From:   Marek Behun <marek.behun@....cz>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Michal Vokáč <vokac.m@...il.com>,
        John Crispin <john@...ozen.org>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Christian Lamparter <chunkeey@...il.com>
Subject: Re: [PATCH net-next 1/1] net: dsa: qca8k: Fix internal PHY MDIO
 address

Hi,

Oh, I didn't know about Christian's patch.

I shall test on our device tomorrow. If it works, we will use internal
PHY access.

But I think that qca8k_port_to_phy should be used in the external mode
as well. On our device the PHYs are mapped on 0-4 on the master bus even
in that mode.

Marek

On Thu, 21 Mar 2019 11:26:08 -0700
Florian Fainelli <f.fainelli@...il.com> wrote:

> +Christian,
> 
> On 3/21/19 11:23 AM, Marek Behún wrote:
> > The MDIO addresses of the internal PHYs on this switch for ports 1-5
> > have addresses 0-4, not 1-5.
> >   
> 
> Can you provide a Fixes: tag for this? Your change will conflicts with
> Christian's patch series here:
> 
> http://patchwork.ozlabs.org/project/netdev/list/?series=98063
> 
> > Signed-off-by: Marek Behún <marek.behun@....cz>
> > Cc: Andrew Lunn <andrew@...n.ch>
> > Cc: Florian Fainelli <f.fainelli@...il.com>
> > Cc: Michal Vokáč <vokac.m@...il.com>
> > Cc: John Crispin <john@...ozen.org>
> > Cc: Wei Yongjun <weiyongjun1@...wei.com>
> > ---
> >  drivers/net/dsa/qca8k.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
> > index cdcde7f8e0b2..eb199193cc3b 100644
> > --- a/drivers/net/dsa/qca8k.c
> > +++ b/drivers/net/dsa/qca8k.c
> > @@ -625,7 +625,7 @@ qca8k_phy_read(struct dsa_switch *ds, int phy,
> > int regnum) {
> >  	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
> >  
> > -	return mdiobus_read(priv->bus, phy, regnum);
> > +	return mdiobus_read(priv->bus, phy - 1, regnum);
> >  }
> >  
> >  static int
> > @@ -633,7 +633,7 @@ qca8k_phy_write(struct dsa_switch *ds, int phy,
> > int regnum, u16 val) {
> >  	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
> >  
> > -	return mdiobus_write(priv->bus, phy, regnum, val);
> > +	return mdiobus_write(priv->bus, phy - 1, regnum, val);
> >  }
> >  
> >  static void
> >   
> 
>