linux-kernel - Re: [PATCH 3/5] mfd: wm5110: Add delay before releasing reset line on cold boot

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Message-ID: <20150317130112.GD23705@opensource.wolfsonmicro.com>
Date:	Tue, 17 Mar 2015 13:01:12 +0000
From:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	lee.jones@...aro.org, sameo@...ux.intel.com, lgirdwood@...il.com,
	patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] mfd: wm5110: Add delay before releasing reset line
	on cold boot

On Tue, Mar 17, 2015 at 12:04:21PM +0000, Mark Brown wrote:
> On Tue, Mar 17, 2015 at 11:50:30AM +0000, Charles Keepax wrote:
> > On Mon, Mar 16, 2015 at 08:47:10PM +0000, Mark Brown wrote:
<snip>
> It seems easy enough to check if the device is active and it's very
> common for drivers to do this (wm8994 has an example) - for most uses
> you should be able to check pm_runtime_is_enabled() and there should
> just be a single bitfield you can look at to figure out if jack
> detection was running.  Looking at the extcon driver briefly
> ARIZONA_JD1_ENA looks hopeful.

Cool ok, sorry about that. All makes more sense now, thanks. I
will respin.

Thanks,
Charles
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