linux-kernel - Re: [PATCH RESEND] ALSA: hda: cs35l56: Enable low-power hibernation mode on i2c

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Date:   Tue, 14 Nov 2023 14:10:08 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Richard Fitzgerald <rf@...nsource.cirrus.com>
Cc:     <tiwai@...e.com>, <alsa-devel@...a-project.org>,
        <linux-sound@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        "Simon Trimmer" <simont@...nsource.cirrus.com>
Subject: Re: [PATCH RESEND] ALSA: hda: cs35l56: Enable low-power hibernation mode on i2c

On Mon, 13 Nov 2023 17:40:29 +0100,
Richard Fitzgerald wrote:
> 
> From: Simon Trimmer <simont@...nsource.cirrus.com>
> 
> This can now be re-enabled as the sequence to reliably wake the device
> has been implemented in the shared ASoC code.
> 
> This has a functional dependency on commit 3df761bdbc8b
> ("ASoC: cs35l56: Wake transactions need to be issued twice")
> 
> To protect against this, enabling hibernation is conditional on
> CS35L56_WAKE_HOLD_TIME_US being defined, which indicates that the new
> hibernation sequences are available.
> 
> Signed-off-by: Simon Trimmer <simont@...nsource.cirrus.com>
> Signed-off-by: Richard Fitzgerald <rf@...nsource.cirrus.com>

Thanks, applied.


Takashi