linux-kernel - Re: [PATCH] Revert "drivers/misc/ti-st: remove gpio handling"

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Date:	Wed, 23 Jan 2013 10:04:41 +0100
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Luciano Coelho <coelho@...com>
CC:	Tony Lindgren <tony@...mide.com>, <gregkh@...uxfoundation.org>,
	<balbi@...com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Revert "drivers/misc/ti-st: remove gpio handling"

On 01/22/2013 10:31 PM, Luciano Coelho wrote:
> I thought about checking exactly what we need as delays and whether we
> really need to do all that toggling.  At least in some boards, the
> toggles are not needed, but I don't know for sure whether it works in
> all different variations of the chip, so I kept them to be safe.  Also,
> I tried to deviate as little as possible from a plain revert, since I'd
> like to get this into stable as well.

I can not find the documentation for the WiLink, but I would guess that it
needs some delay between high->low(off)->(wait)->high(on)->(power-on-time)->up

-- 
Péter
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