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ASoC: mediatek: Assign dummy when codec not specified for a DAI link 

MediaTek sound card drivers are checking whether a DAI link is present
and used on a board to assign the correct parameters and this is done
by checking the codec DAI names at probe time.

If no real codec is present, assign the dummy codec to the DAI link
to avoid NULL pointer during string comparison.

Fixes: 4302187d95 ("ASoC: mediatek: common: add soundcard driver common code")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://msgid.link/r/20240313110147.1267793-5-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
AngeloGioacchino Del Regno 2024-03-13 12:01:29 +01:00 committed by Mark Brown
parent d6c0175580
commit 5f39231888
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 1 deletions
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6
sound/soc/mediatek/common/mtk-soundcard-driver.c
View File

@ -22,7 +22,11 @@ static int set_card_codec_info(struct snd_soc_card *card,
codec_node = of_get_child_by_name(sub_node, "codec");
if (!codec_node) {
dev_dbg(dev, "%s no specified codec\n", dai_link->name);
dev_dbg(dev, "%s no specified codec: setting dummy.\n", dai_link->name);
dai_link->codecs = &snd_soc_dummy_dlc;
dai_link->num_codecs = 1;
dai_link->dynamic = 1;
return 0;
}