linux-kernel - Re: [net-next PATCH v6 3/3] net: phy: add support for PHY package MMD read/write

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Message-ID: <6579d3df.050a0220.41f9b.a309@mx.google.com>
Date:   Wed, 13 Dec 2023 16:55:08 +0100
From:   Christian Marangi <ansuelsmth@...il.com>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>
Cc:     Florian Fainelli <florian.fainelli@...adcom.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Vladimir Oltean <olteanv@...il.com>,
        David Epping <david.epping@...singlinkelectronics.com>,
        Harini Katakam <harini.katakam@....com>,
        Simon Horman <horms@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [net-next PATCH v6 3/3] net: phy: add support for PHY package
 MMD read/write

On Wed, Dec 13, 2023 at 03:47:19PM +0000, Russell King (Oracle) wrote:
> On Wed, Dec 13, 2023 at 11:57:30AM +0100, Christian Marangi wrote:
> > Some PHY in PHY package may require to read/write MMD regs to correctly
> > configure the PHY package.
> > 
> > Add support for these additional required function in both lock and no
> > lock variant.
> > 
> > It's assumed that the entire PHY package is either C22 or C45. We use
> > C22 or C45 way of writing/reading to mmd regs based on the passed phydev
> > whether it's C22 or C45.
> > 
> > Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> 
> I don't recall what has been said in previous postings of this, but
> introducing new helpers without an example user is normally frowned
> upon. The lack of cover message for this three patch series also
> doesn't help (the cover message could explain why there's no users
> being proposed with this addition of helpers.)
>

These are prereq for the qca803x PHY driver and the PHY package series.

I can move this single patch in those series, but it was suggested to
move these simple change to a separate patch to lower the patch number
since they were orthogonal to the PHY package series proposal.

-- 
	Ansuel