Re: question about concurrent regmap i2c usage

[Michael Hennerich]

On 04.04.2017 14:26, Mark Brown wrote:
> On Tue, Apr 04, 2017 at 10:28:23AM +0200, Michael Hennerich wrote:
>
> > A question came up, regarding whether it's recommended to mix regmap_i2c and
> > plain i2c_smbus or direct adapter transfers.
>
> > In this specific case for the i2c MUX portion we need to avoid double locks,
> > and therefore use un-locked direct adapter transfers.
>
> > The same time we also implement a small gpiochip, where we would like to use
> > regmap to avoid some boilerplate code for the register cache.
>
> That should work fine providing nothing tries to change cached registers
> underneath the regmap.  regmap won't be able to tell anything's changed
> otherwise.

Hi Mark,

Thanks for confirmation!

--
Greetings,
Michael

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