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Date:   Wed, 30 Dec 2020 08:17:42 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Andrew Lunn <andrew@...n.ch>, DENG Qingfang <dqfext@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Marc Zyngier <maz@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Russell King <linux@...linux.org.uk>,
        Sean Wang <sean.wang@...iatek.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        Weijie Gao <weijie.gao@...iatek.com>,
        Chuanhong Guo <gch981213@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        René van Dorst <opensource@...rst.com>
Subject: Re: Registering IRQ for MT7530 internal PHYs



On 12/30/2020 7:16 AM, Andrew Lunn wrote:
>> 2. Allocated ds->slave_mii_bus before calling ds->ops->setup, because
>> we cannot call dsa_slave_mii_bus_init which is private.
>>
>> Any better ideas?
> 
> Do what mv88e6xxx does, allocate the MDIO bus inside the switch
> driver.

Yes, exactly, or you could add additional hooks to allow intercepting
the initialization and de-initialization of the ds->slave_mii_bus,
something like this:

https://github.com/ffainelli/linux/commit/758da087a819cd1a284de074ea7d8eae9f875f0b

which was part of a larger series adding threaded IRQ support to the b53
driver:

https://github.com/ffainelli/linux/commits/b53-irq
-- 
Florian

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