Messages in this thread | | | Date | Mon, 24 Jan 2022 20:45:32 +0000 | From | Mark Brown <> | Subject | Re: [PATCH v2 8/9] regulator/rpi-panel-attiny: Don't read the LCD power status |
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On Mon, Jan 24, 2022 at 03:22:35PM -0500, Detlev Casanova wrote: > On Friday, January 21, 2022 11:30:39 A.M. EST Mark Brown wrote:
> > If that's the case since you're using regmap would it not make sense to > > enable caching in order to minimise reads in general.
> Would caching avoid all reads if the values are written at least once before? > The idea here is to make sure they are never read, I'm not sure if the regmap > cache ensures no read in this situation.
All reads for which the value in the hardware is known, either from a register default or from a previous write. [unhandled content-type:application/pgp-signature] | |