linux-kernel - Re: [PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM callbacks are not set

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Message-ID: <20200618110126.GC5789@sirena.org.uk>
Date:   Thu, 18 Jun 2020 12:01:26 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Daniel Baluta <daniel.baluta@....com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        sound-open-firmware@...a-project.org, alsa-devel@...a-project.org
Subject: Re: [PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM
 callbacks are not set

On Wed, Jun 17, 2020 at 09:02:32PM -0400, Sasha Levin wrote:
> From: Daniel Baluta <daniel.baluta@....com>
> 
> [ Upstream commit c26fde3b15ed41f5f452f1da727795f787833287 ]
> 
> This provides a better separation between runtime and PM sleep
> callbacks.
> 
> Only do nothing if given runtime flag is set and calback is not set.
> 
> With the current implementation, if PM sleep callback is set but runtime
> callback is not set then at runtime resume we reload the firmware even
> if we do not support runtime resume callback.

This doesn't look like a bugfix, just an optimization?

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