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Date: Fri, 31 Jul 2020 22:08:38 -0700 From: Florian Fainelli <f.fainelli@...il.com> To: Vikas Singh <vikas.singh@...esoftware.com>, Andrew Lunn <andrew@...n.ch> Cc: hkallweit1@...il.com, linux@...linux.org.uk, netdev@...r.kernel.org, "Calvin Johnson (OSS)" <calvin.johnson@....nxp.com>, Kuldip Dwivedi <kuldip.dwivedi@...esoftware.com>, "Madalin Bucur (OSS)" <madalin.bucur@....nxp.com>, Vikas Singh <vikas.singh@....com> Subject: Re: [PATCH] net: Phy: Add PHY lookup support on MDIO bus in case of ACPI probe On 7/31/2020 9:53 PM, Vikas Singh wrote: > Hi Andrew, > > As i have already mentioned that this patch is based on > https://www.spinics.net/lists/netdev/msg662173.html, > <https://www.spinics.net/lists/netdev/msg662173.html> > > When MDIO bus gets registered itself along with devices on it , the > function mdiobus_register() inside of_mdiobus_register(), brings > up all the PHYs on the mdio bus and attach them to the bus with the help > of_mdiobus_link_mdiodev() inside mdiobus_scan() . > Additionally it has been discussed with the maintainers that the > mdiobus_register() function should be capable of handling both ACPI & > DTB stuff > without any change to existing implementation. > Now of_mdiobus_link_mdiodev() inside mdiobus_scan() see if the > auto-probed phy has a corresponding child in the bus node, and set the > "of_node" pointer in DT case. > But lacks to set the "fwnode" pointer in ACPI case which is resulting in > mdiobus_register() failure as an end result theoretically. > > Now this patch set (changes) will attempt to fill this gap and > generalise the mdiobus_register() implementation for both ACPI & DT with > no duplicacy or redundancy. Please reply in plain text and do not top-post, thank you. -- Florian
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