linux-kernel - Re: [PATCH v4 12/14] net: phy: adin: implement downshift configuration via phy-tunable

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Message-ID: <081d5898-40c5-54d8-f543-942a3518f36e@gmail.com>
Date:   Wed, 14 Aug 2019 10:58:10 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Alexandru Ardelean <alexandru.ardelean@...log.com>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     davem@...emloft.net, robh+dt@...nel.org, mark.rutland@....com,
        hkallweit1@...il.com, andrew@...n.ch
Subject: Re: [PATCH v4 12/14] net: phy: adin: implement downshift
 configuration via phy-tunable



On 8/12/2019 4:23 AM, 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 4 (which is also in the datasheet
> 
> The downshift control mechanism can also be controlled via the phy-tunable
> interface (ETHTOOL_PHY_DOWNSHIFT control).
> 
> The change has been adapted from the Aquantia PHY driver.
> 
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian