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From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
To: Zidan Wang <b50113@freescale.com>
Cc: broonie@kernel.org, lgirdwood@gmail.com, perex@perex.cz,
tiwai@suse.de, lars@metafoo.de, Li.Xiubo@freescale.com,
patches@opensource.wolfsonmicro.com, alsa-devel@alsa-project.org,
linux-kernel@vger.kernel.org
Subject: Re: [alsa-devel][PATCH v3] ASoC: wm8960: Let wm8960 codec driver manage its own MCLK
Date: Mon, 8 Dec 2014 10:15:57 +0000 [thread overview]
Message-ID: <20141208101557.GE14516@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1417696879-15402-1-git-send-email-b50113@freescale.com>
On Thu, Dec 04, 2014 at 08:41:19PM +0800, Zidan Wang wrote:
> When we want to use wm8960 codec, we should enable its MCLK in machine
> driver. It's reasonable for wm8960 codec driver to manage its own MCLK to
> save power.
>
> If platform data is not supplied, we will get MCLK from device tree and check
> the return code to handle probe deferral.
>
> Enable runtime power management, and auto enable/disable MCLK in pm_runtime
> resume and suspend. When wm8960 codec is being used, it will triger resume()
> to enable MCLK. When codec is not being used, it will triger suspend() to
> disable MCLK.
>
> Signed-off-by: Zidan Wang <b50113@freescale.com>
> ---
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Thanks,
Charles
prev parent reply other threads:[~2014-12-08 10:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-04 12:41 Zidan Wang
2014-12-05 17:01 ` Charles Keepax
2014-12-05 17:39 ` Mark Brown
2014-12-08 9:49 ` Zidan Wang
2014-12-08 10:15 ` Charles Keepax
2014-12-08 11:14 ` Mark Brown
2014-12-08 11:57 ` Charles Keepax
2014-12-08 10:15 ` Charles Keepax [this message]
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