linux-kernel - Re: [RFC v3 net-next 0/4] MT7530 interrupt support

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Message-ID: <YG8zvFKOdnzaJqLa@lunn.ch>
Date:   Thu, 8 Apr 2021 18:47:56 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     DENG Qingfang <dqfext@...il.com>
Cc:     René van Dorst <opensource@...rst.com>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Sean Wang <sean.wang@...iatek.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sergio Paracuellos <sergio.paracuellos@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        linux-staging@...ts.linux.dev,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, netdev <netdev@...r.kernel.org>,
        Weijie Gao <weijie.gao@...iatek.com>,
        Chuanhong Guo <gch981213@...il.com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>
Subject: Re: [RFC v3 net-next 0/4] MT7530 interrupt support

On Thu, Apr 08, 2021 at 11:00:08PM +0800, DENG Qingfang wrote:
> Hi René,
> 
> On Thu, Apr 8, 2021 at 10:02 PM René van Dorst <opensource@...rst.com> wrote:
> >
> > Tested on Ubiquiti ER-X-SFP (MT7621) with 1 external phy which uses irq=POLL.
> >
> 
> I wonder if the external PHY's IRQ can be registered in the devicetree.
> Change MT7530_NUM_PHYS to 6, and add the following to ER-X-SFP dts PHY node:

I don't know this platform. What is the PHYs interrupt pin connected
to? A SoC GPIO? There is a generic mechanism to describe PHY
interrupts in DT. That should be used, if it is a GPIO.

	   Andrew