linux-kernel - Re: [PATCHv2] wlcore: spi: add wl18xx support

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Date:	Tue, 19 Apr 2016 18:12:39 +0100
From:	Mark Brown <broonie@...nel.org>
To:	"Reizer, Eyal" <eyalr@...com>
Cc:	Kalle Valo <kvalo@...eaurora.org>,
	Eyal Reizer <eyalreizer@...il.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>
Subject: Re: [PATCHv2] wlcore: spi: add wl18xx support

On Tue, Apr 19, 2016 at 09:05:45AM +0000, Reizer, Eyal wrote:

> Understood. As this special CS manipulation is unique to wspi (wilink spi)  I think the 
> best option is to move this gpio allocation into wlcore_spi as a new device tree entry
> used only by this driver.

That sounds like it is going to break normal chip select operation which
doesn't seem like a good idea either.  What exactly are you trying to do
here?  If you need to send some extra bytes at the end of a transfer why
not just do that, or add an empty transfer with a delay.  It's hard to
see what more you could do with only control of the chip select...

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