linux-kernel - Re: [PATCH v2] ALSA: hda: cs35l41: Stop creating ALSA Controls for firmware coefficients

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Message-ID: <877ccvl87y.wl-tiwai@suse.de>
Date: Mon, 05 Aug 2024 09:49:53 +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-sound@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<patches@...nsource.cirrus.com>
Subject: Re: [PATCH v2] ALSA: hda: cs35l41: Stop creating ALSA Controls for firmware coefficients

On Thu, 01 Aug 2024 17:50:44 +0200,
Stefan Binding wrote:
> 
> When the CS35L41 loads its firmware, it has a number of controls to
> affect its behaviour. Currently, these controls are exposed as ALSA
> Controls.
> 
> These controls were never intended to be exposed to users but the
> firmware doesn't mark them hidden, so make the driver ignore them.
> 
> Any changes in the coefficients handled by these controls needs to
> be matched to the individual system by SSID, which is already handled
> using the tuning file, when firmware is loaded, so UCM should not be
> setting these controls anyway.
> 
> Signed-off-by: Stefan Binding <sbinding@...nsource.cirrus.com>

Applied to for-linus branch now.  Thanks.


Takashi