Re: [RFC PATCH v2 05/12] mtd: rawnand: ams-delta: use GPIO API for data read/write

Janusz Krzysztofik
2018-08-07T17:10:27Z

Hi Boris,

On Tuesday, August 7, 2018 7:06:27 PM CEST Boris Brezillon wrote:
> On Tue, 7 Aug 2018 00:29:11 +0200
> Janusz Krzysztofik <jmkrzyszt@gmail.com> wrote:
>
> > Don't readw()/writew() data directly from/to GPIO port which is under
> > control of gpio-omap driver, use GPIO API instead.
> >
> > Degrade of performance on Amstrad Delta is completely not acceptable.
>
> Can we have numbers along with information about where the overhead is
> when using gpiod_{get,set}_raw_array_value()?

Yes, as soon as I get physical access to the device, probably this or next
weekend.

Thanks,
Janusz