netdev - Re: mt7530: dsa_switch_parse_of() fails, causes probe code to run twice

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Message-ID: <5f7d58ba-60c8-f635-a06d-a041588f64da@arinc9.com>
Date:   Sat, 15 Apr 2023 16:40:19 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Daniel Golle <daniel@...rotopia.org>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        netdev <netdev@...r.kernel.org>, erkin.bozoglu@...ont.com,
        Thibaut <hacks@...shdirt.org>
Subject: Re: mt7530: dsa_switch_parse_of() fails, causes probe code to run
 twice

On 15.04.2023 16:38, Vladimir Oltean wrote:
> On Sat, Apr 15, 2023 at 04:19:46PM +0300, Arınç ÜNAL wrote:
>> While speaking here, let's discuss what should be considered probing.
>>
>> One thing that complicates this is that the MT7530 switch has got a unique
>> feature, PHY muxing. I want to be able to use this feature without
>> registering the switch at all. And that requires the switch to be at least
>> reset.
> 
> All DSA switch drivers end their probing with a successful call to
> dsa_register_switch(). I would appreciate if you wouldn't start adding
> exceptions to that.

My wording was not great there. What I meant is that PHY muxing will be 
configured before dsa_register_switch() is run.

Arınç