Re: [PATCH] spi: core: use gpio_request_one for configured gpio cs

[Chris Packham <Chris.Packham@xxxxxxxxxxxxxxxxxxx>]

On 25/07/17 09:28, Martin Hundebøll wrote:
>> My patchset kind of stalled. I can do a refresh if there's interest.
>> But I really do need some help from people with access to hardware (I can
>> cover spi-orion and spi-fsl-espi but that's about it). After the
>> initial RFC series I posted in May I found that iMX platforms use the integer
>> cs_gpio field for both native chipselects and gpio based ones (values <
>> 0 indicate native CS) so again I'd be coding blind trying to
>> disentangle that.
 >
> My submission was more or less a fly-by patch, but I'd be happy to
> test/debug patches on spi-imx if you CC me on the series.

Thanks for the offer. Now I just need to get a few round tuits.

> 
> Any other drivers with special gpio-cs handling?
 >

Based on a quick grep spi-{atmel,davinci,ep93xx,gpio,imx,mt65xx,stm32} 
all do stuff with cs_gpios outside of the spi core. I think at least 
some of those a trivially handled if we let the core code do the gpio 
management.
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