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

Boris Brezillon
2018-08-07T17:06:45Z

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()?

>
> The driver should work with any 8+-bit bidirectional GPIO port, not
> only OMAP.

That's cool!