linux-kernel - Re: [RFC net-next 2/4] net: dsa: mt7530: add interrupt support

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Message-ID: <CALW65jYhBGmz8dy+9C_YCpJU5wa-KAwgrGjCSpa3nqUNT+xU+g@mail.gmail.com>
Date:   Tue, 6 Apr 2021 23:39:12 +0800
From:   DENG Qingfang <dqfext@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     "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@...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>,
        René van Dorst <opensource@...rst.com>
Subject: Re: [RFC net-next 2/4] net: dsa: mt7530: add interrupt support

On Tue, Apr 6, 2021 at 11:30 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> On Tue, Apr 06, 2021 at 10:18:17PM +0800, DENG Qingfang wrote:
> > Add support for MT7530 interrupt controller to handle internal PHYs.
>
> Are the interrupts purely PHY interrupts? Or are there some switch
> operation interrupts, which are currently not used?

There are other switch operations interrupts as well, such as VLAN
member violation, switch ACL hit.

>
> I'm just wondering if it is correct to so closely tie interrupts and
> MDIO together.
>
>      Andrew