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Message-ID: <7c9e9cc9c8b1694a5641a60378a3b0d3a672ac4d.camel@analog.com>
Date:   Fri, 9 Aug 2019 12:06:00 +0000
From:   "Ardelean, Alexandru" <alexandru.Ardelean@...log.com>
To:     "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "andrew@...n.ch" <andrew@...n.ch>
CC:     "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [PATCH v2 13/15] net: phy: adin: configure downshift on
 config_init

On Thu, 2019-08-08 at 22:39 +0200, Andrew Lunn wrote:
> [External]
> 
> On Thu, Aug 08, 2019 at 09:38:40PM +0200, Heiner Kallweit wrote:
> > On 08.08.2019 14:30, Alexandru Ardelean wrote:
> > > Down-speed auto-negotiation may not always be enabled, in which case the
> > > PHY won't down-shift to 100 or 10 during auto-negotiation.
> > > 
> > > This change enables downshift and configures the number of retries to
> > > default 8 (maximum supported value).
> > > 
> > > The change has been adapted from the Marvell PHY driver.
> > > 
> > Instead of a fixed downshift setting (like in the Marvell driver) you
> > may consider to implement the ethtool phy-tunable ETHTOOL_PHY_DOWNSHIFT.
> 
> Hi Alexandru
> 
> Upps, sorry, my bad.
> 
> I looked at marvell_set_downshift(), and assumed it was connected to
> the phy-tunable. I have patches somewhere which does that. But they
> have not made it into mainline yet.
> 
> > See the Aquantia PHY driver for an example.
> 
> Yes, that does have all the tunable stuff.

Ack.
Will use that

> 
>      Andrew

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