linux-kernel - Re: [PATCH 06/17] dt-bindings: net: mscc-miim: Add resets property

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Date: Thu, 2 May 2024 11:50:43 +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 06/17] dt-bindings: net: mscc-miim: Add resets property

Hi Andrew,

On Tue, 30 Apr 2024 18:31:46 +0200
Andrew Lunn <andrew@...n.ch> wrote:

> > We have the same construction with the pinctrl driver used in the LAN966x
> >   Documentation/devicetree/bindings/pinctrl/mscc,ocelot-pinctrl.yaml
> > 
> > The reset name is 'switch' in the pinctrl binding.
> > I can use the same description here as the one present in the pinctrl binding:
> >   description: Optional shared switch reset.
> > and keep 'switch' as reset name here (consistent with pinctrl reset name).
> > 
> > What do you think about that ?  
> 
> It would be good to document what it is shared with. So it seems to be
> the switch itself, pinctl and MDIO? Anything else?
> 

To be honest, I know that the GPIO controller (microchip,sparx5-sgpio) is
impacted but I don't know if anything else is impacted by this reset.
I can update the description with:
  description:
    Optional shared switch reset.
    This reset is shared with at least pinctrl, GPIO, MDIO and the switch
    itself.

Does it sound better ?

Best regards
Hervé