linux-kernel - Re: [RESEND PATCH v3] ASoC: fsl_sai: Move clock operation to PM runtime

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Message-ID: <20190507231108.GA22188@Asurada-Nvidia.nvidia.com>
Date:   Tue, 7 May 2019 16:11:09 -0700
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     Daniel Baluta <daniel.baluta@....com>
Cc:     "broonie@...nel.org" <broonie@...nel.org>,
        "S.j. Wang" <shengjiu.wang@....com>,
        "timur@...nel.org" <timur@...nel.org>,
        "festevam@...il.com" <festevam@...il.com>,
        "tiwai@...e.com" <tiwai@...e.com>,
        dl-linux-imx <linux-imx@....com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND PATCH v3] ASoC: fsl_sai: Move clock operation to PM
 runtime

On Tue, May 07, 2019 at 02:06:52PM +0000, Daniel Baluta wrote:
> From: Shengjiu Wang <shengjiu.wang@....com>
> 
> Turn off/on clocks when device enters suspend/resume. This
> can help saving power.
> 
> As a further optimization, we turn off/on mclk only when SAI
> is in master mode because otherwise mclk is externally provided.
> 
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
> Signed-off-by: Daniel Baluta <daniel.baluta@....com>
> Reviewed-by: Viorel Suman <viorel.suman@....com>
  
Acked-by: Nicolin Chen <nicoleotsuka@...il.com>