linux-kernel - Re: [PATCH v3 4/4] ASoC: tegra: Specify components string for Nexus 7

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Date:   Mon, 24 May 2021 12:54:20 +0200
From:   Jaroslav Kysela <perex@...ex.cz>
To:     Dmitry Osipenko <digetx@...il.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Mark Brown <broonie@...nel.org>, Takashi Iwai <tiwai@...e.com>,
        Ion Agorria <ion@...rria.com>,
        Svyatoslav Ryhel <clamor95@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>
Cc:     alsa-devel@...a-project.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] ASoC: tegra: Specify components string for Nexus 7

Dne 24. 05. 21 v 1:44 Dmitry Osipenko napsal(a):
> Specify components string for Nexus 7 using the Intel BayTrail components
> format. This may allow us to create a more generic UCM for RT5640 codec.
> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  sound/soc/tegra/tegra_asoc_machine.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/sound/soc/tegra/tegra_asoc_machine.c b/sound/soc/tegra/tegra_asoc_machine.c
> index a81f2ebfc00c..87e0a47040a5 100644
> --- a/sound/soc/tegra/tegra_asoc_machine.c
> +++ b/sound/soc/tegra/tegra_asoc_machine.c
> @@ -671,6 +671,24 @@ static const struct tegra_asoc_data tegra_rt5640_data = {
>  	.add_hp_jack = true,
>  };
>  
> +/*
> + * Speaker: Connected to SPO L/R P/N pins, stereo.
> + * Internal Microphone: Digital, connected to DMIC1_DAT IN2P/N pins.
> + * Headphones: Connected to HPOL/R pins.
> + * Headset Microphone: Unconnected.
> + *
> + * IF2_DAC/ADC are unpopulated.
> + */
> +static const struct tegra_asoc_data tegra_rt5640_grouper_data = {
> +	.components = "codec:rt5640 cfg-spk:2 cfg-mic:dmic1 aif:1",

Perhaps, it may be better to handle this string via the DT config (create new
function like snd_soc_of_parse_card_name()).

The "codec:rt5640" should be set in the driver (it's fixed), but the
"cfg-spk:2 cfg-mic:dmic1 aif:1" part is suitable for the DT config.

					Jaroslav

-- 
Jaroslav Kysela <perex@...ex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.