netdev - Re: [PATCH V3] net: phy: tja11xx: Add TJA11xx PHY driver

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Date:   Thu, 3 Jan 2019 18:57:49 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Marek Vasut <marex@...x.de>,
        Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org
Cc:     Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH V3] net: phy: tja11xx: Add TJA11xx PHY driver



On 1/3/2019 6:53 PM, Marek Vasut wrote:
> On 1/4/19 3:19 AM, Marek Vasut wrote:
> 
> [...]
> 
> On a separate note, I was pondering about the master/slave mode of the
> TJA11xx PHY. Right now, the driver only operates in Automatic mode,
> however the PHY can be force-configured as either master or slave.
> Would using .set_tunable with a new tunable type be a good way to expose
> this to userspace ? The ethtool can then configure the PHY mode.

Using an ethtool u8 tunable would be fine, with something like:

0 -> automatic
1 -> force master
2 -> force slave
-- 
Florian