diff mbox series

[04/22] ASoC: mediatek: Assign dummy when codec not specified for a DAI link

Message ID 20240227120939.290143-5-angelogioacchino.delregno@collabora.com (mailing list archive)
State Superseded
Headers show
Series ASoC: Cleanup MediaTek soundcard machine drivers | expand

Commit Message

AngeloGioacchino Del Regno Feb. 27, 2024, 12:09 p.m. UTC 
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: 4302187d955f ("ASoC: mediatek: common: add soundcard driver common code")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 sound/soc/mediatek/common/mtk-soundcard-driver.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/sound/soc/mediatek/common/mtk-soundcard-driver.c b/sound/soc/mediatek/common/mtk-soundcard-driver.c
index a58e1e3674de..000a086a8cf4 100644
--- a/sound/soc/mediatek/common/mtk-soundcard-driver.c
+++ b/sound/soc/mediatek/common/mtk-soundcard-driver.c
@@ -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;
 	}