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Subject: Re: [PATCH v8 3/3] fpga: Add support for Lattice iCE40 FPGAs
To: Moritz Fischer <moritz.fischer@ettus.com>, Marek Vasut <marex@denx.de>
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Cc: Alan Tull <atull@opensource.altera.com>,
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From: Joel Holdsworth <joel@airwebreathe.org.uk>
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Date: Tue, 8 Nov 2016 10:30:54 -0700
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>>> On the whole, I don't think the zero-length transfers are too
>>> egregiously bad, and all the alternatives seem worse to me.
>>
>> So why not turn the CS line into GPIO and just toggle the GPIO?
>
> Does that work with *all* SPI controllers?
>

It does not - no. See my other email.