linux-kernel - Re: [PATCH v4 03/10] ASoC: cs35l41: Move power initializations to reg

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Date:   Wed, 15 Dec 2021 09:10:31 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Lucas Tanure <tanureal@...nsource.cirrus.com>
CC:     "Rafael J . Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        <alsa-devel@...a-project.org>, <linux-acpi@...r.kernel.org>,
        <patches@...nsource.cirrus.com>,
        <platform-driver-x86@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 03/10] ASoC: cs35l41: Move power initializations to
 reg_sequence

On Tue, Dec 14, 2021 at 01:59:52PM +0000, Lucas Tanure wrote:
> +	{ CS35L41_PWR_CTRL2,		 0x00000000 },
> +	{ CS35L41_AMP_GAIN_CTRL,	 0x00000000 },
>  };
> -	ret = regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2,
> -				 CS35L41_AMP_EN_MASK, 0);
> -	if (ret < 0) {
> -		dev_err(cs35l41->dev, "Write CS35L41_PWR_CTRL2 failed: %d\n", ret);
> -		goto err;
> -	}
> -
> -	ret = regmap_update_bits(cs35l41->regmap, CS35L41_AMP_GAIN_CTRL,
> -				 CS35L41_AMP_GAIN_PCM_MASK, 0);
> -	if (ret < 0) {
> -		dev_err(cs35l41->dev, "Write CS35L41_AMP_GAIN_CTRL failed: %d\n", ret);
> -		goto err;
> -	}

Sorry for not spotting earlier but just noticed these two writes
are update bits, so you shouldn't just be setting the values to
zero in the patch you just want to clear the relevant bit.

Thanks,
Charles