[PATCH] spi: Fix probing SPI drivers without a cs-gpios node

[Sascha Hauer]

On Sun, Jan 22, 2023 at 09:09:38PM +0300, Alexander Shiyan wrote:
> I dont know. I said how would I do it if it was my patch. I hope
> Sasсha will decide how it will be better.

I would also prefer a dedicated function that just returns 0 if there
are no CS GPIOs found.

Sascha

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