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From: Mark Brown <broonie@kernel.org>
To: Sheetal <sheetal@nvidia.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	Thierry Reding <thierry.reding@kernel.org>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Sameer Pujar <spujar@nvidia.com>,
	Mohan Kumar <mkumard@nvidia.com>,
	Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
	linux-sound@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] ASoC: tegra: Add per-stream Mixer Fade controls
Date: Tue, 5 May 2026 10:33:32 +0900	[thread overview]
Message-ID: <aflI7IFr6nt05g4R@sirena.co.uk> (raw)
In-Reply-To: <20260504100051.3820808-1-sheetal@nvidia.com>

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On Mon, May 04, 2026 at 10:00:51AM +0000, Sheetal wrote:

> +static int tegra210_mixer_put_fade_duration(struct snd_kcontrol *kcontrol,
> +					    struct snd_ctl_elem_value *ucontrol)
> +{
> +	struct soc_mixer_control *mc =
> +		(struct soc_mixer_control *)kcontrol->private_value;
> +	struct snd_soc_component *cmpnt = snd_kcontrol_chip(kcontrol);
> +	struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
> +	unsigned int id = mc->reg;
> +	u32 duration = ucontrol->value.integer.value[0];
> +
> +	if (duration == 0)
> +		return -EINVAL;
> +
> +	if (mixer->duration[id] == duration)
> +		return 0;
> +
> +	mixer->duration[id] = duration;
> +	mixer->fade_pending[id] = true;
> +
> +	return 1;

We're not validating against TEGRA210_MIXER_FADE_DURATION_MAX here,
similarly for the gain.


> +static int tegra210_mixer_get_fade_status(struct snd_kcontrol *kcontrol,
> +					  struct snd_ctl_elem_value *ucontrol)
> +{

> +		if (count >= mixer->duration[id]) {
> +			ucontrol->value.integer.value[id] = TEGRA210_MIXER_FADE_IDLE;
> +			mixer->in_fade[id] = false;

This doesn't disable the sample counting so subsequent enables will be
noops (due to use of _update_bits()).

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      reply	other threads:[~2026-05-05  1:33 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-04 10:00 [PATCH v3] ASoC: tegra: Add per-stream Mixer Fade controls Sheetal
2026-05-05  1:33 ` Mark Brown [this message]

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