Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Mon, 5 Jun 2023 10:54:05 +0200
From:   Herve Codina <herve.codina@bootlin.com>
To:     andy.shevchenko@gmail.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: <20230605105405.39bcebef@bootlin.com>
In-Reply-To: <ZHtJLxNReoc4Yjqj@surfacebook>
References: <20230523151223.109551-1-herve.codina@bootlin.com>
        <20230523151223.109551-7-herve.codina@bootlin.com>
        <ZHtJLxNReoc4Yjqj@surfacebook>
Organization: Bootlin
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

On Sat, 3 Jun 2023 17:07:43 +0300
andy.shevchenko@gmail.com wrote:

> 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)
> 

Indeed, I will convert macros and remove the helper in the next iteration.

Thanks for the review,
Hervé