linux-kernel - Re: [PATCH AUTOSEL for 4.9 31/56] ASoC: da7218: Set DAI output pin high impedance when not in use

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Date:   Wed, 15 Nov 2017 16:43:08 +0000
From:   alexander.levin@...izon.com
To:     Mark Brown <broonie@...nel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Adam Thomson <Adam.Thomson.Opensource@...semi.com>
Subject: Re: [PATCH AUTOSEL for 4.9 31/56] ASoC: da7218: Set DAI output pin
 high impedance when not in use

On Wed, Nov 15, 2017 at 12:19:18PM +0000, Mark Brown wrote:
>On Wed, Nov 15, 2017 at 02:45:42AM +0000, alexander.levin@...izon.com wrote:
>
>> This patch updates the AIF_OUT widget to set the DAI output pin of
>> the device as high impedance when not in use.
>
>This will leave the line floating which EEs don't always like.  It's
>probably OK and hasn't lead to any reports in mainline yet but still...

The idea I got from the patch is that output will not be working if
there are multiple codecs?

-- 

Thanks,
Sasha