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From: Mark Brown <broonie@kernel.org>
To: Marco Felsch <m.felsch@pengutronix.de>
Cc: Rouven Czerwinski <r.czerwinski@pengutronix.de>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	kernel@pengutronix.de, alsa-devel@alsa-project.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] ASoC: max98088: fix initial dai mute state
Date: Thu, 15 Dec 2022 12:00:45 +0000	[thread overview]
Message-ID: <Y5sMbQZix760NH4T@sirena.org.uk> (raw)
In-Reply-To: <20221215091747.xn3f7ecrwoc7ssyo@pengutronix.de>

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On Thu, Dec 15, 2022 at 10:17:47AM +0100, Marco Felsch wrote:
> On 22-12-13, Mark Brown wrote:

> > > +       snd_soc_component_update_bits(component, M98088_REG_2F_LVL_DAI1_PLAY,
> > > +               M98088_DAI_MUTE_MASK, M98088_DAI_MUTE);
> > > +       snd_soc_component_update_bits(component, M98088_REG_31_LVL_DAI2_PLAY,
> > > +               M98088_DAI_MUTE_MASK, M98088_DAI_MUTE);
> > > +

> > Won't this be broken again after suspend?  The device gets powered off
> > over suspend, then when it powers on again with the output unmuted
> > nothing will do another write since the register is already in the state
> > in the cache.

> I didn't found any suspend logic within the driver. Is this handled
> within the ASoC core?

Register save and restore for the device won't be.

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  reply	other threads:[~2022-12-15 12:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-13  9:53 [PATCH 1/2] ASoC: max98088: fix dai1/2_hw_params access Rouven Czerwinski
2022-12-13  9:53 ` [PATCH 2/2] ASoC: max98088: fix initial dai mute state Rouven Czerwinski
2022-12-13 12:01   ` Mark Brown
2022-12-15  9:17     ` Marco Felsch
2022-12-15 12:00       ` Mark Brown [this message]
2022-12-13 12:04 ` [PATCH 1/2] ASoC: max98088: fix dai1/2_hw_params access Mark Brown

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