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From: Mark Brown <broonie@kernel.org>
To: Jaroslav Kysela <perex@perex.cz>
Cc: Dmitry Osipenko <digetx@gmail.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Takashi Iwai <tiwai@suse.com>, Ion Agorria <ion@agorria.com>,
	Svyatoslav Ryhel <clamor95@gmail.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	alsa-devel@alsa-project.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] ASoC: tegra: Unify ASoC machine drivers
Date: Thu, 20 May 2021 20:08:12 +0100	[thread overview]
Message-ID: <20210520190812.GF3962@sirena.org.uk> (raw)
In-Reply-To: <8e5d4442-00a4-460b-d37a-8962960dd7ff@perex.cz>

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On Thu, May 20, 2021 at 09:02:49PM +0200, Jaroslav Kysela wrote:
> Dne 20. 05. 21 v 19:50 Dmitry Osipenko napsal(a):
> > Squash all machine drivers into a single-universal one. This reduces
> > code duplication, eases addition of a new drivers and upgrades older
> > code to a modern Linux kernel APIs.

> > +static struct snd_soc_card snd_soc_tegra_wm9712 = {
> > +	.dai_link = &tegra_wm9712_dai,
> > +	.num_links = 1,
> > +	.fully_routed = true,
> > +};

> Please, could you also initialize snd_soc_card->components? It may be useful
> to pass the codec identification to the user space like:

> .components = "codec:wm9712"

Hrm, if this is important to userspace shouldn't the core be doing
something by default given that it already knows all the components
going into the card?

> The passed information should be consistent. You may look into the Intel ASoC
> drivers for the examples (card->components initialization). There are also
> hints about the number of connected microphones ("cfg-mic:2" - configuration
> with 2 microphones) or the codec purpose ("hs:rt711" - headset codec is RT711)
> etc.

This sort of stuff is more something that the card should layer on top.

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WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie@kernel.org>
To: Jaroslav Kysela <perex@perex.cz>
Cc: alsa-devel@alsa-project.org, Liam Girdwood <lgirdwood@gmail.com>,
	linux-kernel@vger.kernel.org,
	Svyatoslav Ryhel <clamor95@gmail.com>,
	Takashi Iwai <tiwai@suse.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Ion Agorria <ion@agorria.com>,
	linux-tegra@vger.kernel.org, Dmitry Osipenko <digetx@gmail.com>
Subject: Re: [PATCH v2 2/2] ASoC: tegra: Unify ASoC machine drivers
Date: Thu, 20 May 2021 20:08:12 +0100	[thread overview]
Message-ID: <20210520190812.GF3962@sirena.org.uk> (raw)
In-Reply-To: <8e5d4442-00a4-460b-d37a-8962960dd7ff@perex.cz>

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On Thu, May 20, 2021 at 09:02:49PM +0200, Jaroslav Kysela wrote:
> Dne 20. 05. 21 v 19:50 Dmitry Osipenko napsal(a):
> > Squash all machine drivers into a single-universal one. This reduces
> > code duplication, eases addition of a new drivers and upgrades older
> > code to a modern Linux kernel APIs.

> > +static struct snd_soc_card snd_soc_tegra_wm9712 = {
> > +	.dai_link = &tegra_wm9712_dai,
> > +	.num_links = 1,
> > +	.fully_routed = true,
> > +};

> Please, could you also initialize snd_soc_card->components? It may be useful
> to pass the codec identification to the user space like:

> .components = "codec:wm9712"

Hrm, if this is important to userspace shouldn't the core be doing
something by default given that it already knows all the components
going into the card?

> The passed information should be consistent. You may look into the Intel ASoC
> drivers for the examples (card->components initialization). There are also
> hints about the number of connected microphones ("cfg-mic:2" - configuration
> with 2 microphones) or the codec purpose ("hs:rt711" - headset codec is RT711)
> etc.

This sort of stuff is more something that the card should layer on top.

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  reply	other threads:[~2021-05-20 19:08 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-20 17:50 [PATCH v2 0/2] Unify NVIDIA Tegra ASoC machine drivers Dmitry Osipenko
2021-05-20 17:50 ` Dmitry Osipenko
2021-05-20 17:50 ` [PATCH v2 1/2] ASoC: tegra: Set driver_name=tegra for all " Dmitry Osipenko
2021-05-20 17:50   ` Dmitry Osipenko
2021-05-20 18:12   ` Dmitry Osipenko
2021-05-20 18:12     ` Dmitry Osipenko
2021-05-20 17:50 ` [PATCH v2 2/2] ASoC: tegra: Unify ASoC " Dmitry Osipenko
2021-05-20 17:50   ` Dmitry Osipenko
2021-05-20 19:02   ` Jaroslav Kysela
2021-05-20 19:02     ` Jaroslav Kysela
2021-05-20 19:08     ` Mark Brown [this message]
2021-05-20 19:08       ` Mark Brown
2021-05-21  8:54       ` Jaroslav Kysela
2021-05-21  8:54         ` Jaroslav Kysela
2021-05-21 18:43     ` Dmitry Osipenko
2021-05-21 18:43       ` Dmitry Osipenko
2021-05-21 13:12   ` Jon Hunter
2021-05-21 13:12     ` Jon Hunter
2021-05-21 19:05     ` Dmitry Osipenko
2021-05-21 19:05       ` Dmitry Osipenko
2021-05-24 12:22       ` Jon Hunter
2021-05-24 12:22         ` Jon Hunter
2021-05-24 13:40         ` Dmitry Osipenko
2021-05-24 13:40           ` Dmitry Osipenko
2021-05-24 18:50           ` Jon Hunter
2021-05-24 18:50             ` Jon Hunter
2021-05-24 21:02             ` Dmitry Osipenko
2021-05-24 21:02               ` Dmitry Osipenko
2021-05-25  6:51               ` Jon Hunter
2021-05-25  6:51                 ` Jon Hunter

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