netdev - Re: [PATCH 1/4] dt-bindings: net: dsa: nxp,sja1105: Add reset-gpios property

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Message-ID: <e5bb3ed5-be37-4bdd-ad42-c35d441a67a8@sirena.org.uk>
Date: Wed, 10 Sep 2025 16:43:05 +0100
From: Mark Brown <broonie@...nel.org>
To: Vladimir Oltean <vladimir.oltean@....com>
Cc: Marco Felsch <m.felsch@...gutronix.de>,
	Jonas Rebmann <jre@...gutronix.de>, Andrew Lunn <andrew@...n.ch>,
	imx@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Eric Dumazet <edumazet@...gle.com>,
	Fabio Estevam <festevam@...il.com>, Rob Herring <robh@...nel.org>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	devicetree@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>, linux-sound@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
	Shengjiu Wang <shengjiu.wang@....com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Vladimir Oltean <olteanv@...il.com>,
	Shawn Guo <shawnguo@...nel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH 1/4] dt-bindings: net: dsa: nxp,sja1105: Add reset-gpios
 property

On Wed, Sep 10, 2025 at 06:34:54PM +0300, Vladimir Oltean wrote:
> On Wed, Sep 10, 2025 at 04:09:05PM +0100, Mark Brown wrote:

> > after power on.  The above wording is pretty common in datasheets and I
> > know in a bunch of cases it was carried forward kind of blindly rather
> > than looking at the actual device requirements.

> No, it doesn't say that, and I had discussions with the application
> engineering team for this chip about this :-/

> I can't comment on anything extrapolated outside of the SJA1105/SJA1110.

Fair enough if this chip is unusually unstable, TBH I'm surprised to
see something currently available that's so fragile - internal POR
circuits aren't exactly new or exciting and do make things so much more
robust.

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