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 12:39:15 +0200
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Michael Sit Wei Hong <michael.wei.hong.sit@...el.com>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...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, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux@...linux.org.uk, hkallweit1@...il.com, andrew@...n.ch,
        Shahab Vahedi <Shahab.Vahedi@...opsys.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        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
Subject: Re: [PATCH net 1/1] net: stmmac: check fwnode for phy device before
 scanning for phy

On Wed, Apr 5, 2023 at 11:40 AM Michael Sit Wei Hong
<michael.wei.hong.sit@...el.com> 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>
This also works great on my X96 Air (and I presume it will fix all
other Amlogic boards):
Tested-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>


Thanks a lot for being so quick with this fix!