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From: Andrew Lunn <andrew@lunn.ch>
To: Michael Walle <michael@walle.cc>
Cc: "Russell King (Oracle)" <linux@armlinux.org.uk>,
	"Yisen Zhuang" <yisen.zhuang@huawei.com>,
	"Salil Mehta" <salil.mehta@huawei.com>,
	"David S . Miller" <davem@davemloft.net>,
	"Jakub Kicinski" <kuba@kernel.org>,
	"Paolo Abeni" <pabeni@redhat.com>,
	"Florian Fainelli" <f.fainelli@gmail.com>,
	"Broadcom internal kernel review list"
	<bcm-kernel-feedback-list@broadcom.com>,
	"Heiner Kallweit" <hkallweit1@gmail.com>,
	"Marek Behún" <kabel@kernel.org>, "Xu Liang" <lxu@maxlinear.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 0/5] net: phy: C45-over-C22 access
Date: Tue, 24 Jan 2023 22:03:08 +0100	[thread overview]
Message-ID: <Y9BHjEUSvIRI2Mrz@lunn.ch> (raw)
In-Reply-To: <dcea8c36e626dc31ee1ddd8c867eb999@walle.cc>

> Btw. for the DT case, it seems we need yet another property
> to indicate broken MDIO busses.

I would prefer to avoid that. I would suggest you do what i did for
the none DT case. First probe using C22 for all devices known in DT.
Then call mdiobus_prevent_c45_scan() which will determine if any of
the found devices are FUBAR and will break C45. Then do a second probe
using C45 and/or C45 over C22 for those devices in DT with the c45
compatible.

	Andrew

  reply	other threads:[~2023-01-24 21:03 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-20 22:40 [PATCH net-next 0/5] net: phy: C45-over-C22 access Michael Walle
2023-01-20 22:40 ` [PATCH net-next 1/5] net: phy: add error checks in mmd_phy_indirect() and export it Michael Walle
2023-01-23 15:34   ` Andrew Lunn
2023-01-20 22:40 ` [PATCH net-next 2/5] net: phy: support indirect c45 access in get_phy_c45_ids() Michael Walle
2023-01-20 22:40 ` [PATCH net-next 3/5] net: phy: add support for C45-over-C22 transfers Michael Walle
2023-01-20 22:40 ` [PATCH net-next 4/5] phy: net: introduce phy_promote_to_c45() Michael Walle
2023-01-20 23:20   ` Russell King (Oracle)
2023-01-20 23:27     ` Michael Walle
2023-01-20 22:40 ` [PATCH net-next 5/5] net: phy: mxl-gpy: remove unneeded ops Michael Walle
2023-01-23 18:03 ` [PATCH net-next 0/5] net: phy: C45-over-C22 access Andrew Lunn
2023-01-23 18:47   ` Russell King (Oracle)
2023-01-23 20:05     ` Andrew Lunn
2023-01-24  0:35       ` Michael Walle
2023-01-24  1:44         ` Andrew Lunn
2023-01-24 14:41     ` Michael Walle
2023-01-24 21:03       ` Andrew Lunn [this message]
2023-01-24 21:20         ` Michael Walle
2023-01-25 13:52           ` Andrew Lunn

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