linux-kernel - Re: [PATCH v4 net-next 5/5] net: phy: marvell-88q2xxx: add driver for the Marvell 88Q2220 PHY

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Date: Mon, 8 Jan 2024 12:16:48 +0100
From: Dimitri Fedrau <dima.fedrau@...il.com>
To: Simon Horman <horms@...nel.org>
Cc: Andrew Lunn <andrew@...n.ch>, 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>,
	Stefan Eichenberger <eichest@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 net-next 5/5] net: phy: marvell-88q2xxx: add driver
 for the Marvell 88Q2220 PHY

Am Mon, Jan 08, 2024 at 11:08:44AM +0000 schrieb Simon Horman:
> On Mon, Jan 08, 2024 at 10:37:00AM +0100, Dimitri Fedrau wrote:
> > Add a driver for the Marvell 88Q2220. This driver allows to detect the
> > link, switch between 100BASE-T1 and 1000BASE-T1 and switch between
> > master and slave mode. Autonegoation is supported.
> 
> nit: Autonegotiation
> 
Will fix it in V5.
> > Signed-off-by: Dimitri Fedrau <dima.fedrau@...il.com>
> > ---
> >  drivers/net/phy/marvell-88q2xxx.c | 206 +++++++++++++++++++++++++++++-
> >  include/linux/marvell_phy.h       |   1 +
> >  2 files changed, 201 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/net/phy/marvell-88q2xxx.c b/drivers/net/phy/marvell-88q2xxx.c
> 
> ...
> 
> > @@ -29,6 +36,42 @@
> >  
> >  #define MDIO_MMD_PCS_MV_RX_STAT			33328
> >  
> > +struct mmd_val {
> > +	int devad;
> > +	u32 regnum;
> > +	u16 val;
> > +};
> > +
> > +const struct mmd_val mv88q222x_revb0_init_seq0[] = {
> > +	{ MDIO_MMD_PCS, 0x8033, 0x6801 },
> > +	{ MDIO_MMD_AN, MDIO_AN_T1_CTRL, 0x0 },
> > +	{ MDIO_MMD_PMAPMD, MDIO_CTRL1,
> > +	  MDIO_CTRL1_LPOWER | MDIO_PMA_CTRL1_SPEED1000 },
> > +	{ MDIO_MMD_PCS, 0xfe1b, 0x48 },
> > +	{ MDIO_MMD_PCS, 0xffe4, 0x6b6 },
> > +	{ MDIO_MMD_PMAPMD, MDIO_CTRL1, 0x0 },
> > +	{ MDIO_MMD_PCS, MDIO_CTRL1, 0x0 },
> > +};
> > +
> > +const struct mmd_val mv88q222x_revb0_init_seq1[] = {
> > +	{ MDIO_MMD_PCS, 0xfe79, 0x0 },
> > +	{ MDIO_MMD_PCS, 0xfe07, 0x125a },
> > +	{ MDIO_MMD_PCS, 0xfe09, 0x1288 },
> > +	{ MDIO_MMD_PCS, 0xfe08, 0x2588 },
> > +	{ MDIO_MMD_PCS, 0xfe11, 0x1105 },
> > +	{ MDIO_MMD_PCS, 0xfe72, 0x042c },
> > +	{ MDIO_MMD_PCS, 0xfbba, 0xcb2 },
> > +	{ MDIO_MMD_PCS, 0xfbbb, 0xc4a },
> > +	{ MDIO_MMD_AN, 0x8032, 0x2020 },
> > +	{ MDIO_MMD_AN, 0x8031, 0xa28 },
> > +	{ MDIO_MMD_AN, 0x8031, 0xc28 },
> > +	{ MDIO_MMD_PCS, 0xffdb, 0xfc10 },
> > +	{ MDIO_MMD_PCS, 0xfe1b, 0x58 },
> > +	{ MDIO_MMD_PCS, 0xfe79, 0x4 },
> > +	{ MDIO_MMD_PCS, 0xfe5f, 0xe8 },
> > +	{ MDIO_MMD_PCS, 0xfe05, 0x755c },
> > +};
> 
> nit: mv88q222x_revb0_init_seq0 and mv88q222x_revb0_init_seq1 seem
>     to only be used in this file. Perhaps they should be static.
> 
> ...

You are right, will fix it in V5. Thanks.

Best regards,
Dimitri