linux-kernel - Re: [PATCH net-next 05/16] net: pcs: xpcs: Move native device ID macro to linux/pcs/pcs-xpcs.h

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Message-ID: <bas6l42vk2zzrwo22ss7fuganf4ekvhtvkb32duydjise7ui3o@o4f3rbcpokur>
Date:   Tue, 5 Dec 2023 14:14:34 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Maxime Chevallier <maxime.chevallier@...tlin.com>,
        Tomer Maimon <tmaimon77@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, openbmc@...ts.ozlabs.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 05/16] net: pcs: xpcs: Move native device ID
 macro to linux/pcs/pcs-xpcs.h

On Tue, Dec 05, 2023 at 10:45:34AM +0000, Russell King (Oracle) wrote:
> On Tue, Dec 05, 2023 at 01:35:26PM +0300, Serge Semin wrote:
> > Generic MDIO-device driver will support setting a custom device ID for the
> > particular MDIO-device.
> 
> Why future tense? I don't see anything later in this patch set adding
> this.

After the next patch is applied
[PATCH net-next 10/16] net: pcs: xpcs: Add generic DW XPCS MDIO-device support
the DW XPCS driver _will_ support setting custom IDs based on the
platform data and the DT compatibles. It can be used for instance to
fix the already available SJ1105 and SJ1110 MDIO bus implementations,
so instead of substituting the XPCS IDs on the PHYSID CSR reads the
driver could just pass the device ID and PMA ID via the device
platform data.

If my patch log text looks unclear anyway, just say so. I'll change it
accordingly. I guess it would be enough to say that moving is required
just to collect all the IDs in a single place.

-Serge(y)

> 
> -- 
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!