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Message-ID: <20240430174044.606c2ed4@bootlin.com>
Date: Tue, 30 Apr 2024 17:40:44 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo
 Abeni <pabeni@...hat.com>, Lee Jones <lee@...nel.org>, Arnd Bergmann
 <arnd@...db.de>, Horatiu Vultur <horatiu.vultur@...rochip.com>,
 UNGLinuxDriver@...rochip.com, Heiner Kallweit <hkallweit1@...il.com>,
 Russell King <linux@...linux.org.uk>, Saravana Kannan
 <saravanak@...gle.com>, Bjorn Helgaas <bhelgaas@...gle.com>, Philipp Zabel
 <p.zabel@...gutronix.de>, Lars Povlsen <lars.povlsen@...rochip.com>, Steen
 Hegelund <Steen.Hegelund@...rochip.com>, Daniel Machon
 <daniel.machon@...rochip.com>, Alexandre Belloni
 <alexandre.belloni@...tlin.com>, linux-kernel@...r.kernel.org,
 devicetree@...r.kernel.org, netdev@...r.kernel.org,
 linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Allan
 Nielsen <allan.nielsen@...rochip.com>, Luca Ceresoli
 <luca.ceresoli@...tlin.com>, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 07/17] net: mdio: mscc-miim: Handle the switch reset

Hi Andrew,

On Tue, 30 Apr 2024 15:46:18 +0200
Andrew Lunn <andrew@...n.ch> wrote:

> On Tue, Apr 30, 2024 at 10:37:16AM +0200, Herve Codina wrote:
> > The mscc-miim device can be impacted by the switch reset, at least when
> > this device is part of the LAN966x PCI device.  
> 
> Just to be sure i understand this correctly. The MDIO bus master can
> be reset using the "switch" reset. So you are adding code to ensure
> the "switch" reset is out of reset state, so the MDIO bus master
> works.

Exactly.

> 
> Given that this is a new property, maybe give it a better name to
> indicate it resets both the switch and the MDIO bus master?
> 

Replied in the patch in the same series introducing the property
  [PATCH 06/17] dt-bindings: net: mscc-miim: Add resets property

Thanks for the feedback.
Best regards,
Hervé

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