Re: [alsa-devel][PATCH v3] ASoC: wm8960: Let wm8960 codec driver manage its own MCLK

From: Charles Keepax
Date: Mon Dec 08 2014 - 05:16:07 EST


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@xxxxxxxxxxxxx>
> ---

Acked-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>

Thanks,
Charles
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