linux-kernel - [PATCH 6.0 385/862] ASoC: mediatek: mt8195-mt6359: Properly register sound card for SOF

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Date:   Wed, 19 Oct 2022 10:27:52 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 385/862] ASoC: mediatek: mt8195-mt6359: Properly register sound card for SOF

From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

[ Upstream commit 64ec924c781ee846bd469be8d1d6bbed78c0f439 ]

Adding a probe callback on this snd_soc_card is required when
Sound Open Firmware support is desired, as we need to appropriately
populate the stream_name for SOF to be able to bind widgets.
Failing to do so will produce errors when applying the SOF topology
leading to card registration failure (so, no sound).
While at it, also make sure to fill the topology_shortname as required.

Fixes: 0caf1120c583 ("ASoC: mediatek: mt8195: extract SOF common code")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 sound/soc/mediatek/mt8195/mt8195-mt6359.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/mediatek/mt8195/mt8195-mt6359.c b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
index c530e3fc27e4..961e769602d6 100644
--- a/sound/soc/mediatek/mt8195/mt8195-mt6359.c
+++ b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
@@ -1383,7 +1383,13 @@ static int mt8195_mt6359_dev_probe(struct platform_device *pdev)
 		sof_priv->num_streams = ARRAY_SIZE(g_sof_conn_streams);
 		sof_priv->sof_dai_link_fixup = mt8195_dai_link_fixup;
 		soc_card_data->sof_priv = sof_priv;
+		card->probe = mtk_sof_card_probe;
 		card->late_probe = mtk_sof_card_late_probe;
+		if (!card->topology_shortname_created) {
+			snprintf(card->topology_shortname, 32, "sof-%s", card->name);
+			card->topology_shortname_created = true;
+		}
+		card->name = card->topology_shortname;
 		sof_on = 1;
 	}
 
-- 
2.35.1