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From:   andy.shevchenko@gmail.com
Date:   Sat, 3 Jun 2023 17:07:43 +0300
To:     Herve Codina <herve.codina@bootlin.com>
Cc:     Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Jonathan Cameron <jic23@kernel.org>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
        alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH v2 6/9] ASoC: soc-dapm.h: Add a helper to build a DAPM
 widget dynamically
Message-ID: <ZHtJLxNReoc4Yjqj@surfacebook>
References: <20230523151223.109551-1-herve.codina@bootlin.com>
 <20230523151223.109551-7-herve.codina@bootlin.com>
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Tue, May 23, 2023 at 05:12:20PM +0200, Herve Codina kirjoitti:
> The SND_SOC_DAPM_* helpers family are used to build widgets array in a
> static way.
> 
> Introduce SND_SOC_DAPM_WIDGET() in order to use the SND_SOC_DAPM_*
> helpers family in a dynamic way. The different SND_SOC_DAPM_* parameters
> can be computed by the code and the widget can be built based on this
> parameter computation.
> For instance:
>   static int create_widget(char *input_name)
>   {
> 	struct snd_soc_dapm_widget widget;
> 	char name*;
> 	...
> 	name = input_name;
> 	if (!name)
> 		name = "default";
> 
> 	widget = SND_SOC_DAPM_WIDGET(SND_SOC_DAPM_INPUT(name));
> 	...
>   }

Maybe instead of adding a helper, simply convert those macros to provide
a compaund literal? (See, for example,
https://elixir.bootlin.com/linux/v6.4-rc4/source/include/linux/pinctrl/pinctrl.h#L42)

-- 
With Best Regards,
Andy Shevchenko