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

From: Johannes Zink
Date: Thu Jul 27 2023 - 02:42:08 EST


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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