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From: Lukasz Majewski <lukma@denx.de>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>,
	davem@davemloft.net, Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	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>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	Richard Cochran <richardcochran@gmail.com>,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 4/4] net: mtip: The L2 switch driver for imx287
Date: Mon, 31 Mar 2025 09:00:33 +0200	[thread overview]
Message-ID: <20250331090033.281807b2@wsk> (raw)
In-Reply-To: <022e19f5-9a9c-42eb-9358-a6fe832e8f5f@lunn.ch>

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Hi Andrew.

> > > > +	/* Prevent a state halted on mii error */
> > > > +	if (fep->mii_timeout && phy_dev->state == PHY_HALTED) {
> > > > +		phy_dev->state = PHY_UP;
> > > > +		goto spin_unlock;
> > > > +	}    
> > > 
> > > A MAC driver should not be playing around with the internal state
> > > of phylib.  
> > 
> > Ok, I've replaced it with PHY API calls (phy_start() and
> > phy_is_started()).  
> 
> phy_start() and phy_stop() should be used in pairs. It is not good to
> call start more often than stop.
> 
> What exactly is going on here? Why would there be MII errors?
> 

Exactly.

I've double check it - this can be safely dropped.

> 	Andrew


Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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  reply	other threads:[~2025-03-31  7:00 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-28 13:35 [PATCH v2 0/4] net: mtip: Add support for MTIP imx287 L2 switch driver Lukasz Majewski
2025-03-28 13:35 ` [PATCH v2 1/4] dt-bindings: net: Add MTIP L2 switch description Lukasz Majewski
2025-03-28 14:07   ` Krzysztof Kozlowski
2025-03-29 22:10     ` Lukasz Majewski
2025-03-30  9:47       ` Krzysztof Kozlowski
2025-03-30 21:04         ` Lukasz Majewski
2025-03-31  6:30           ` Krzysztof Kozlowski
2025-03-31  7:19             ` Lukasz Majewski
2025-03-28 18:23   ` Andrew Lunn
2025-03-30  6:36     ` Lukasz Majewski
2025-03-28 18:30   ` Andrew Lunn
2025-03-30  6:38     ` Lukasz Majewski
2025-03-29  1:37   ` Rob Herring (Arm)
2025-03-29 17:09   ` Rob Herring
2025-03-29 21:16     ` Lukasz Majewski
2025-03-28 13:35 ` [PATCH v2 2/4] ARM: dts: nxp: mxs: Adjust the imx28.dtsi " Lukasz Majewski
2025-03-28 13:35 ` [PATCH v2 3/4] ARM: dts: nxp: mxs: Adjust XEA board's DTS to support L2 switch Lukasz Majewski
2025-03-28 13:35 ` [PATCH v2 4/4] net: mtip: The L2 switch driver for imx287 Lukasz Majewski
2025-03-28 14:19   ` Krzysztof Kozlowski
2025-03-31  8:06     ` Lukasz Majewski
2025-03-28 19:30   ` Andrew Lunn
2025-03-30 20:20     ` Lukasz Majewski
2025-03-30 22:01       ` Andrew Lunn
2025-03-31  7:00         ` Lukasz Majewski [this message]
2025-03-28 13:43 ` [PATCH v2 0/4] net: mtip: Add support for MTIP imx287 L2 switch driver Jakub Kicinski
2025-03-28 13:49   ` Lukasz Majewski

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