Re: [PATCH] net: phy: don't issue a module request if a driver is available

On Thursday, 2 January 2025 at 15:21:51 Andrew Lunn [off-list ref] wrote:

quoted

quoted

One other question, how much speadup do you get with async probe of
PHYs? Is it really worth the effort?

For me it's a reduction of ~170ms, which currently accounts for roughly the 25%
of the time spent before starting userspace (660ms vs 490ms, give or take a
couple of milliseconds). That's due to the large reset time required by the PHYs
to initialize

170ms seems like a long time for a reset. Maybe check the datasheet
and see what it says.

	Andrew

Turned out that another 50-60ms could be shaven off. I trusted the original
implementation for the platform on the reset timings, but the datasheet used
the same name for two time quantities and they chose the wrong one.

Regards,
Francesco