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

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Message-ID: <87pm013nzb.wl-tiwai@suse.de>
Date:   Wed, 22 Nov 2023 14:40:40 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Richard Fitzgerald <rf@...nsource.cirrus.com>
Cc:     <tiwai@...e.com>, <linux-sound@...r.kernel.org>,
        <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>
Subject: Re: [PATCH] ALSA: hda: cs35l56: Enable low-power hibernation mode on SPI

On Wed, 22 Nov 2023 12:04:27 +0100,
Richard Fitzgerald wrote:
> 
> On 21/11/23 20:36, Takashi Iwai wrote:
> > On Tue, 21 Nov 2023 16:44:19 +0100,
> > Richard Fitzgerald wrote:
> >> 
> >> SPI hibernation is now supported with the latest hibernation/wake
> >> sequences in the shared ASoC code.
> >> 
> >> This has a functional dependency on two commits:
> >> 
> >> commit 3df761bdbc8b ("ASoC: cs35l56: Wake transactions need to be issued
> >> twice")
> >> 
> >> commit a47cf4dac7dc ("ASoC: cs35l56: Change hibernate sequence to use
> >> allow auto hibernate")
> >> 
> >> 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: Richard Fitzgerald <rf@...nsource.cirrus.com>
> > 
> > Is this expected to be merged for 6.7?  Or it can be post 6.7?
> > I guess the former, but just to make sure.
> > 
> 
> It would be good to get it into 6.7 because it reduces the power
> consumption in runtime-suspend and suspend-to-RAM. But it's not
> critical (it's not a bugfix).

OK, now applied to for-linus branch (for 6.7).


thanks,

Takashi