linux-kernel - Re: [PATCH 3/3] ASoC: tas6424: Add support for the mute pin

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Message-ID: <20180423153746.GJ19834@sirena.org.uk>
Date:   Mon, 23 Apr 2018 16:37:46 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Jean-Jacques Hiblot <jjhiblot@...com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, perex@...ex.cz,
        tiwai@...e.com, dannenberg@...com, afd@...com,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] ASoC: tas6424: Add support for the mute pin

On Fri, Apr 20, 2018 at 12:04:44PM +0200, Jean-Jacques Hiblot wrote:

> +	- mute-gpio: GPIO used to mute all the outputs

Same thing with the plural here.

> +	if (tas6424->mute_gpio) {
> +		gpiod_set_value_cansleep(tas6424->mute_gpio, mute ? 1 : 0);
> +		return 0;
> +	}

Just use mute directly, the ternery operator is doing nothing for
legibility here and C does the integer to boolean thing for you.

> +	if (tas6424->mute_gpio) {
> +		gpiod_set_value_cansleep(tas6424->mute_gpio, 0);
> +		/*
> +		 * channels are muted via the mute pin, don't also. Don't also
> +		 * mute them via the registers so that subsequent register
> +		 * access is not necessary to un-mute the channels

Extra "don't also" in there.

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