linux-kernel - Re: [PATCH RFC net-next v2 06/12] net: mdio: mdio-bitbang: Separate C22 and C45 transactions

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Message-ID: <300bdff73f38b4e480d533c04126854d@walle.cc>
Date:   Tue, 03 Jan 2023 14:27:37 +0100
From:   Michael Walle <michael@...le.cc>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        Wei Fang <wei.fang@....com>,
        Shenwei Wang <shenwei.wang@....com>,
        Clark Wang <xiaoning.wang@....com>,
        NXP Linux Team <linux-imx@....com>,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, Andrew Lunn <andrew@...n.ch>,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: Re: [PATCH RFC net-next v2 06/12] net: mdio: mdio-bitbang: Separate
 C22 and C45 transactions

Am 2023-01-03 14:15, schrieb Vladimir Oltean:
> On Wed, Dec 28, 2022 at 12:07:22AM +0100, Michael Walle wrote:
>> From: Andrew Lunn <andrew@...n.ch>
>> 
>> The bitbbanging bus driver can perform both C22 and C45 transfers.
>> Create separate functions for each and register the C45 versions using
>> the new driver API calls.
>> 
>> The SH Ethernet driver places wrappers around these functions. In
>> order to not break boards which might be using C45, add similar
>> wrappers for C45 operations.
>> 
>> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
>> Signed-off-by: Andrew Lunn <andrew@...n.ch>
>> Signed-off-by: Michael Walle <michael@...le.cc>
>> ---
> 
> Incomplete conversion, this breaks the build. Need to update all users
> of the bitbang driver (also davinci_mdio). Something like the diff 
> below
> fixes that, but it leaves the davinci_mdio driver in a partially
> converted state (if data->manual_mode is true, new API is used,
> otherwise old API is used). So another patch to convert the other case
> will likely be needed.

The intel build bot already notified me about this. Unfortunately, only
privately as I just noticed.

And yes, these are just the first 12 patches of a larger series.

-michael