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From: Andrew Lunn <andrew@lunn.ch>
To: "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>,
	netdev@vger.kernel.org, lxu@maxlinear.com, hkallweit1@gmail.com,
	davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, linux-kernel@vger.kernel.org,
	UNGLinuxDriver@microchip.com
Subject: Re: [PATCH net-next] net: phy: add wol config options in phy device
Date: Thu, 2 May 2024 18:37:07 +0200	[thread overview]
Message-ID: <1ee9ee17-6582-4cb1-9a17-072be7d2b2c0@lunn.ch> (raw)
In-Reply-To: <ZjO4VrYR+FCGMMSp@shell.armlinux.org.uk>

> It would be good to hear exactly why its necessary for phylib to track
> this state, and why the PHY isn't retaining it.

I _think_ it is a hardware reset. The call path is probably:

mdio_bus_phy_resume():
  phy_init_hw():
    phy_device_reset()
      mdio_device_reset()

But it would be good to get this confirmed.

	Andrew

  parent reply	other threads:[~2024-05-02 16:37 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-30  5:06 Raju Lakkaraju
2024-05-02 13:49 ` Paolo Abeni
2024-05-03  9:22   ` Raju Lakkaraju
2024-05-02 14:51 ` Andrew Lunn
2024-05-02 15:59   ` Russell King (Oracle)
2024-05-02 16:17     ` Florian Fainelli
2024-05-02 16:37     ` Andrew Lunn [this message]
2024-05-07 10:20     ` Raju Lakkaraju
2024-05-07 11:53       ` Russell King (Oracle)
2024-05-07 16:18         ` Ronnie.Kunin
2024-05-07 17:56           ` Russell King (Oracle)
2024-05-07 18:58             ` Ronnie.Kunin
2024-05-03  9:37   ` Raju Lakkaraju
2024-05-06  1:28     ` Andrew Lunn
2024-05-07  8:25       ` Russell King (Oracle)

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