linux-kernel - Re: [PATCH 8/9] ASoC: Intel: bytcr_rt5640: Drop unwanted ignore

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Message-ID: <55819630-6198-6227-63ef-69311b21b255@redhat.com>
Date:   Thu, 1 Mar 2018 17:26:06 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/9] ASoC: Intel: bytcr_rt5640: Drop unwanted
 ignore_suspend settings

Hi,

On 01-03-18 17:22, Mark Brown wrote:
> On Sun, Feb 18, 2018 at 11:01:45PM +0100, Hans de Goede wrote:
>> The ignore_suspend settings were added in an attempt to try and fix
>> suspend / resume issues. But they never fully fixed these and now we've
>> a proper fix, so lets remove these.
> 
> Do these systems not have the ability to continue to play audio through
> suspend using the DSP?  That's the sort of thing that ignore_suspend is
> normally used for.

In theory yes, in practice if we keep ignore_suspend set then we get
audio for a couple of more seconds after suspend until the buffers
are empty, as we have no code keeping them filled, which is not really
useful, since we don't support this in a meaningful way it is better
to just do a normal full suspend.

Regards,

Hans