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Message-ID: <8b4822f7-6671-1c23-572d-37f7e94ea8cc@linux.intel.com>
Date: Wed, 26 Jun 2019 23:20:22 +0200
From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To: Jerome Brunet <jbrunet@...libre.com>,
Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Kevin Hilman <khilman@...libre.com>
Cc: devicetree@...r.kernel.org, alsa-devel@...a-project.org,
linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [alsa-devel] [PATCH 1/2] ASoC: soc-core: defer card registration
if codec component is missing
On 6/26/19 3:36 PM, Jerome Brunet wrote:
> Like cpus and platforms, defer sound card initialization if the codec
> component is missing when initializing the dai_link
>
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
> sound/soc/soc-core.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> index 358f1fbf9a30..002ddbf4e5a3 100644
> --- a/sound/soc/soc-core.c
> +++ b/sound/soc/soc-core.c
> @@ -1064,12 +1064,20 @@ static int soc_init_dai_link(struct snd_soc_card *card,
> link->name);
> return -EINVAL;
> }
> +
> /* Codec DAI name must be specified */
> if (!codec->dai_name) {
> dev_err(card->dev, "ASoC: codec_dai_name not set for %s\n",
> link->name);
> return -EINVAL;
> }
> +
> + /*
> + * Defer card registartion if codec component is not added to
registration
> + * component list.
> + */
> + if (!soc_find_component(codec))
> + return -EPROBE_DEFER;
> }
>
> /*
>
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