netdev - Re: [PATCH net 1/1] net: stmmac: check fwnode for phy device before scanning for phy

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Date:   Wed, 5 Apr 2023 10:10:34 +0000
From:   Shahab Vahedi <Shahab.Vahedi@...opsys.com>
To:     Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Ong Boon Leong <boon.leong.ong@...el.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "andrew@...n.ch" <andrew@...n.ch>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
CC:     Looi Hong Aun <hong.aun.looi@...el.com>,
        Voon Weifeng <weifeng.voon@...el.com>,
        Lai Peter Jun Ann <peter.jun.ann.lai@...el.com>,
        Zulkifli Muhammad Husaini <muhammad.husaini.zulkifli@...el.com>,
        Tan Tee Min <tee.min.tan@...el.com>,
        "hock.leong.kweh@...el.com" <hock.leong.kweh@...el.com>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>,
        Vineet Gupta <vgupta@...nel.org>
Subject: Re: [PATCH net 1/1] net: stmmac: check fwnode for phy device before
 scanning for phy

Cc Vineet Gupta

On 4/5/23 12:07, Shahab Vahedi wrote:
> On 4/5/23 11:39, Michael Sit Wei Hong wrote:
>> Some DT devices already have phy device configured in the DT/ACPI.
>> Current implementation scans for a phy unconditionally even though
>> there is a phy listed in the DT/ACPI and already attached.
>>
>> We should check the fwnode if there is any phy device listed in
>> fwnode and decide whether to scan for a phy to attach to.y
>>
>> Reported-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
>> Fixes: fe2cfbc96803 ("net: stmmac: check if MAC needs to attach to a PHY")
>> Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>
>> ---
> 
> Works fine on ARC HSDK board.
> Tested-by: Shahab Vahedi <shahab@...opsys.com>
> 

-- 
Shahab