On Tue, Mar 24, 2020 at 10:29:09AM +0200, Matti Vaittinen wrote:
> Many devices have control registers which control some measurable
> property. Often a register contains control field so that change in
> this field causes linear change in the controlled property. It is not
> a rare case that user wants to give 'meaningful' control values and
> driver needs to convert them to register field values. Even more
> often user wants to 'see' the currently set value - again in
> meaningful units - and driver needs to convert the values it reads
> from register to these meaningful units. Examples of this include:

Reviwed-by: Mark Brown <broonie@kernel.org>