Re: [net-next PATCH v11 5/9] mfd: an8855: Add support for Airoha AN8855 Switch MFD

Vladimir Oltean
2024-12-17T15:15:09Z

On Sat, Dec 14, 2024 at 04:11:54PM +0100, Christian Marangi wrote:
> We can see that:
> - as suggested regmap doesn't cause any performance penality. It does
> even produce better result.
> - the read/set/restore implementation gives worse performance.
>
> So I guess I will follow the path of regmap + cache page. What do you
> think?

I'm not seeing results with the "times" variable changed, but in
general, I guess the "switch regmap + page" and "switch regmap + phy
regmap" will remain neck and neck in terms of performance, surpassing
the "switch regmap restore" techniques more and more as "times"
increases. So going with a PHY regmap probably sounds good.