netdev - Re: [PATCH v2] net: stmmac: correct MAC propagation delay

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Message-ID: <ZME88hOgNug+PFga@hoboy.vegasvil.org>
Date: Wed, 26 Jul 2023 08:34:10 -0700
From: Richard Cochran <richardcochran@...il.com>
To: Marc Kleine-Budde <mkl@...gutronix.de>
Cc: Jakub Kicinski <kuba@...nel.org>, Johannes Zink <j.zink@...gutronix.de>,
	linux-kernel@...r.kernel.org, kernel@...gutronix.de,
	netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Russell King <linux@...linux.org.uk>,
	kernel test robot <lkp@...el.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Paolo Abeni <pabeni@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	linux-arm-kernel@...ts.infradead.org, patchwork-jzi@...gutronix.de
Subject: Re: [PATCH v2] net: stmmac: correct MAC propagation delay

On Wed, Jul 26, 2023 at 08:04:37AM +0200, Marc Kleine-Budde wrote:

> At least the datasheet of the IP core tells to read the MAC delay from
> the IP core (1), add the PHY delay (2) and the clock domain crossing
> delay (3) and write it to the time stamp correction register.

That is great, until they change the data sheet.  Really, this happens.

Thanks,
Richard