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From: Lukasz Majewski <lukma@denx.de>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Paolo Abeni <pabeni@redhat.com>, Jakub Kicinski <kuba@kernel.org>,
	Eric Dumazet <edumazet@google.com>,
	davem@davemloft.net, Andrew Lunn <andrew+netdev@lunn.ch>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	devicetree@vger.kernel.org, imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Richard Cochran <richardcochran@gmail.com>,
	netdev@vger.kernel.org,
	Maxime Chevallier <maxime.chevallier@bootlin.com>
Subject: Re: [PATCH 2/5] dt-bindings: net: Add MTIP L2 switch description (fec,mtip-switch.yaml)
Date: Wed, 26 Mar 2025 14:43:16 +0100	[thread overview]
Message-ID: <20250326144316.2ca252f7@wsk> (raw)
In-Reply-To: <2ccab52d-5ed1-4257-a8f1-328c76127ebe@lunn.ch>

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Hi Andrew,

> > +  phy-reset-gpios:
> > +    deprecated: true
> > +    description:
> > +      Should specify the gpio for phy reset.  
> 
> It seem odd that a new binding has deprecated properties. Maybe add a
> comment in the commit message as to why they are there. I assume this
> is because you are re-using part of the FEC code as is, and it
> implements them?
> 

In the case of MTIP L2 switch, the reset gpio line (in my case, but
also on e.g. imx28-evk, and vf610) is single for both PHYs.

I could move the reset to mdio child nodes, but this would be
problematic, as asserting reset on one PHY would reset the second one.

That is why there is a single 'phy-reset-gpios' property for the switch
driver.

I do believe that for FEC it may be deprecated, but for the HW
configurations I'm aware of it fits best. 

> 	   Andrew
> 


Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma@denx.de

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  parent reply	other threads:[~2025-03-26 13:43 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-25 11:57 [PATCH 0/5] net: mtip: Add support for MTIP imx287 L2 switch driver Lukasz Majewski
2025-03-25 11:57 ` [PATCH 1/5] MAINTAINERS: Add myself as the MTIP L2 switch maintainer (IMX SoCs: imx287) Lukasz Majewski
2025-03-25 12:01   ` Krzysztof Kozlowski
2025-03-25 12:15     ` Lukasz Majewski
2025-03-25 11:57 ` [PATCH 2/5] dt-bindings: net: Add MTIP L2 switch description (fec,mtip-switch.yaml) Lukasz Majewski
2025-03-25 12:04   ` Krzysztof Kozlowski
2025-03-25 12:15     ` Lukasz Majewski
2025-03-25 12:24       ` Krzysztof Kozlowski
2025-03-25 12:39         ` Lukasz Majewski
2025-03-25 12:43           ` Krzysztof Kozlowski
2025-03-25 14:27             ` Lukasz Majewski
2025-03-25 13:25   ` Rob Herring (Arm)
2025-03-25 15:05   ` Andrew Lunn
2025-03-25 15:11     ` Krzysztof Kozlowski
2025-03-25 16:12     ` Lukasz Majewski
2025-03-26 13:43     ` Lukasz Majewski [this message]
2025-03-26 14:15       ` Krzysztof Kozlowski
2025-03-26 15:24       ` Andrew Lunn
2025-03-25 11:57 ` [PATCH 3/5] arm: dts: Adjust the 'reg' range for imx287 L2 switch description Lukasz Majewski
2025-03-25 12:04   ` Krzysztof Kozlowski
2025-03-25 12:19     ` Lukasz Majewski
2025-03-25 11:57 ` [PATCH 4/5] arm: dts: imx287: Provide description for MTIP L2 switch Lukasz Majewski
2025-03-25 15:14   ` Andrew Lunn
2025-03-25 16:16     ` Lukasz Majewski
2025-03-25 11:57 ` [PATCH 5/5] net: mtip: The L2 switch driver for imx287 Lukasz Majewski
2025-03-25 12:11   ` Krzysztof Kozlowski
2025-03-25 13:28     ` Lukasz Majewski
2025-03-25 14:36       ` Krzysztof Kozlowski
2025-03-25 15:34       ` Andrew Lunn
2025-03-25 16:38         ` Lukasz Majewski
2025-03-25 17:13           ` Krzysztof Kozlowski
2025-03-25 17:30             ` Lukasz Majewski
2025-03-25 14:51 ` [PATCH 0/5] net: mtip: Add support for MTIP imx287 L2 switch driver Rob Herring (Arm)

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