From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Stephen Warren <swarren@nvidia.com>
Cc: Ben Dooks <ben-linux@fluff.org>, Dilan Lee <dilee@nvidia.com>,
linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] i2c/tegra: I2C driver uses the suspend_noirq/resume_noirq
Date: Thu, 22 Sep 2011 18:01:54 +0100 [thread overview]
Message-ID: <20110922170154.GD1045@sirena.org.uk> (raw)
In-Reply-To: <1312586102-27907-1-git-send-email-swarren@nvidia.com>
On Fri, Aug 05, 2011 at 05:15:02PM -0600, Stephen Warren wrote:
> From: Dilan Lee <dilee@nvidia.com>
>
> We found the register settings of wm8903(an audio codec) can't be modified
> in snd_soc_suspend since I2C bus has been suspended before snd_soc_suspend.
>
> Pop noise will occur when system resume from LP0 if the register settings of wm8903
> haven't be modified correctly in snd_soc_suspend.
>
> So, we use the suspend_noirq/resume_noirq callbacks to make sure I2C bus still
> operates while running snd_soc_suspend.
>
> Signed-off-by: Dilan Lee <dilee@nvidia.com>
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
At Stephen's request
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
prev parent reply other threads:[~2011-09-22 17:02 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-05 23:15 Stephen Warren
2011-08-06 4:33 ` Colin Cross
2011-08-06 8:48 ` Mark Brown
2011-08-11 19:35 ` Stephen Warren
2011-08-11 20:51 ` Colin Cross
2011-08-11 21:09 ` Stephen Warren
2011-08-11 21:43 ` Colin Cross
2011-08-12 0:45 ` Mark Brown
2011-08-12 2:59 ` Colin Cross
2011-08-12 3:14 ` Mark Brown
2011-08-24 21:28 ` Stephen Warren
2011-08-24 21:33 ` Colin Cross
2011-08-30 16:25 ` Stephen Warren
2011-08-31 16:28 ` Arnd Bergmann
2011-08-31 16:31 ` Mark Brown
2011-09-20 16:51 ` Stephen Warren
2011-09-22 15:28 ` Arnd Bergmann
2011-08-25 10:36 ` Mark Brown
2011-08-12 0:18 ` Mark Brown
2011-09-22 17:01 ` Mark Brown [this message]
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