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From: Mark Brown <broonie@kernel.org>
To: Shengjiu Wang <shengjiu.wang@nxp.com>
Cc: shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com,
	nicoleotsuka@gmail.com, lgirdwood@gmail.com, perex@perex.cz,
	tiwai@suse.com, linux-sound@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ASoC: fsl_micfil: Add DC output remover control
Date: Mon, 20 Apr 2026 13:50:26 +0100	[thread overview]
Message-ID: <6c6f94b1-a4fa-418a-b471-8e3c82305233@sirena.org.uk> (raw)
In-Reply-To: <20260420085344.2081805-1-shengjiu.wang@nxp.com>

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On Mon, Apr 20, 2026 at 04:53:44PM +0800, Shengjiu Wang wrote:

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

> +	if (val < 0 || val > 3)
> +		return -EINVAL;
> +
> +	ret = pm_runtime_resume_and_get(comp->dev);
> +	if (ret)
> +		return ret;
> +
> +	micfil->dc_out_remover = val;

...

> +	/* Update DC Remover mode for all channels */
> +	ret = snd_soc_component_update_bits(comp, REG_MICFIL_DC_OUT_CTRL,
> +					    MICFIL_DC_CTRL_CONFIG, reg_val);
> +
> +	pm_runtime_put_autosuspend(comp->dev);
> +
> +	return ret;

This will return 0 not 1 when the value changes, meaning event
generation is missed.  The mixer-test selftest should report this.

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  reply	other threads:[~2026-04-20 12:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-20  8:53 [PATCH] ASoC: fsl_micfil: Add DC output remover control Shengjiu Wang
2026-04-20 12:50 ` Mark Brown [this message]
2026-04-21  7:40   ` Shengjiu Wang
2026-04-21 13:00     ` Mark Brown
2026-04-26 21:49 ` Mark Brown

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