linux-kernel - Re: [PATCH v5 0/4] Support mute notifications for CS35L41 HDA

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Message-ID: <87fs36egnv.wl-tiwai@suse.de>
Date:   Fri, 22 Sep 2023 10:49:40 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Stefan Binding <sbinding@...nsource.cirrus.com>
Cc:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>
Subject: Re: [PATCH v5 0/4] Support mute notifications for CS35L41 HDA

On Thu, 21 Sep 2023 18:28:45 +0200,
Stefan Binding wrote:
> 
> Some systems use a special keyboard shortcut to mute speaker audio.
> On systems using CS35L41 HDA which have this shortcut, add a
> mechanism which uses ACPI notifications to determine when the
> shortcut is pressed, and then mute the amps inside the driver.
> 
> Since this is not a normal mute mechanism, it does not go through
> userspace. To allow userspace to be able to track this special
> state, add an ALSA control which tracks the state of this forced
> mute
> 
> Changes since v2:
> - Fixed compile issue when CONFIG_ACPI is missing
> 
> Changes since v3:
> - Split first patch into 3 separate patches
> - Ensure all acpi code is protected by check for CONFIG_ACPI in
> realtek driver
> 
> Changes since v4:
> - Rebase onto for-next branch
> 
> Stefan Binding (4):
>   ALSA: hda: cs35l41: Add notification support into component binding
>   ALSA: hda/realtek: Support ACPI Notification framework via component
>     binding
>   ALSA: hda: cs35l41: Support mute notifications for CS35L41 HDA
>   ALSA: hda: cs35l41: Add read-only ALSA control for forced mute

Applied to for-next branch now.  Thanks.


Takashi