On Mon, Apr 03, 2023 at 02:26:44PM -0400, Liam R. Howlett wrote: > What you have will work. If you need more optimisations later, then we > can have another look. Yeah, what's there tests out OK. In terms of optimisation the baseline requirement is that we have to be able to pull values out faster than we'd be able to read them from the device so until we're working with MMIO devices (which people do use regmap with sometimes but aren't the common case) we can typically burn a *lot* of CPU cycles and still be doing just fine. The hot spots are basic read/write of an existing cached register, then sync and initial load in of cache defaults.
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