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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: Luciano Coelho <coelho@ti.com>
Cc: Tony Lindgren <tony@atomide.com>, <gregkh@linuxfoundation.org>,
	<balbi@ti.com>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Revert "drivers/misc/ti-st: remove gpio handling"
Date: Wed, 23 Jan 2013 10:04:41 +0100	[thread overview]
Message-ID: <50FFA7A9.9040709@ti.com> (raw)
In-Reply-To: <1358890299.6252.166.camel@cumari.coelho.fi>

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

  reply	other threads:[~2013-01-23  9:04 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-21 11:12 [PATCH] Revert "drivers/misc/ti-st: remove gpio handling" Luciano Coelho
2013-01-22 20:14 ` Tony Lindgren
2013-01-22 21:31   ` Luciano Coelho
2013-01-23  9:04     ` Peter Ujfalusi [this message]
2013-01-23  9:05       ` Peter Ujfalusi
2013-01-23  9:14         ` Luciano Coelho
2013-01-23  9:21           ` Peter Ujfalusi
2013-01-23  9:28             ` Luciano Coelho

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