From: Johannes Zink <j.zink@pengutronix.de>
To: Richard Cochran <richardcochran@gmail.com>,
Marc Kleine-Budde <mkl@pengutronix.de>
Cc: kernel test robot <lkp@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Russell King <linux@armlinux.org.uk>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Eric Dumazet <edumazet@google.com>,
Jose Abreu <joabreu@synopsys.com>,
linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
linux-stm32@st-md-mailman.stormreply.com,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
patchwork-jzi@pengutronix.de
Subject: Re: [PATCH v2] net: stmmac: correct MAC propagation delay
Date: Thu, 27 Jul 2023 08:40:51 +0200 [thread overview]
Message-ID: <f7849436-8dac-64b1-8ec6-3aced13bee94@pengutronix.de> (raw)
In-Reply-To: <ZME88hOgNug+PFga@hoboy.vegasvil.org>
Hi Richard,
On 7/26/23 17:34, Richard Cochran wrote:
> 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.
I think I don't get your point here.
That's true for literally any register of any peripheral in a datasheet.
I think we can just stop doing driver development if we wait for a final
revision that is not changed any more. Datasheets change, and if they do we
update the driver.
Johannes
>
> Thanks,
> Richard
>
>
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next prev parent reply other threads:[~2023-07-27 6:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-24 10:01 Johannes Zink
2023-07-26 3:06 ` Jakub Kicinski
2023-07-26 3:22 ` Richard Cochran
2023-07-26 3:39 ` Jakub Kicinski
2023-07-26 6:04 ` Marc Kleine-Budde
2023-07-26 15:34 ` Richard Cochran
2023-07-27 6:40 ` Johannes Zink [this message]
2023-07-27 13:30 ` Richard Cochran
2023-07-26 6:10 ` Johannes Zink
2023-07-26 15:43 ` Richard Cochran
2023-07-27 6:39 ` Johannes Zink
2023-07-27 6:55 ` Johannes Zink
2023-07-27 7:41 ` Johannes Zink
2023-07-27 7:15 ` Kurt Kanzenbach
2023-07-27 7:18 ` Johannes Zink
2023-07-26 5:50 ` Marc Kleine-Budde
2023-07-26 3:50 ` patchwork-bot+netdevbpf
2023-07-26 18:00 ` Richard Cochran
2023-07-27 6:42 ` Johannes Zink
2023-07-27 13:34 ` Richard Cochran
2023-07-26 20:57 ` Richard Cochran
2023-07-27 7:20 ` Johannes Zink
2023-07-27 13:36 ` Richard Cochran
2023-07-31 7:00 ` Johannes Zink
2023-07-31 13:44 ` Richard Cochran
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