Re: [RFC PATCH v2 05/12] mtd: rawnand: ams-delta: use GPIO API for data read/write
From: Boris Brezillon <hidden>
Date: 2018-08-07 17:06:45
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linux-arm-kernel, linux-doc, linux-omap, lkml
On Tue, 7 Aug 2018 00:29:11 +0200 Janusz Krzysztofik [off-list ref] 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!