From a5ba725e9dc928832ba97a4418e36fef8d0244c6 Mon Sep 17 00:00:00 2001
From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Date: Tue, 26 Apr 2022 10:17:41 -0700
Subject: [PATCH] ASoC: SOF: topology: Skip parsing DAI link tokens if not needed
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Git-commit: a5ba725e9dc928832ba97a4418e36fef8d0244c6
Patch-mainline: v5.19-rc1
References: jsc#PED-850

Do not parse these tokens if they are not defined in the IPC version
specific token list. In the case of IPC4 with HDA topologies for
example, no DAI link specific tokens need to be added in topology.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220426171743.171061-10-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 sound/soc/sof/topology.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 739f343010fc..b1fcab7ce48e 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -1721,14 +1721,16 @@ static int sof_link_load(struct snd_soc_component *scomp, int index, struct snd_
 		return -ENOMEM;
 	}
 
-	/* parse one set of DAI link tokens */
-	ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
-			      SOF_DAI_LINK_TOKENS, 1, slink->tuples,
-			      num_tuples, &slink->num_tuples);
-	if (ret < 0) {
-		dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
-			token_list[SOF_DAI_LINK_TOKENS].name, link->name);
-		goto err;
+	if (token_list[SOF_DAI_LINK_TOKENS].tokens) {
+		/* parse one set of DAI link tokens */
+		ret = sof_copy_tuples(sdev, private->array, le32_to_cpu(private->size),
+				      SOF_DAI_LINK_TOKENS, 1, slink->tuples,
+				      num_tuples, &slink->num_tuples);
+		if (ret < 0) {
+			dev_err(scomp->dev, "failed to parse %s for dai link %s\n",
+				token_list[SOF_DAI_LINK_TOKENS].name, link->name);
+			goto err;
+		}
 	}
 
 	/* nothing more to do if there are no DAI type-specific tokens defined */
-- 
2.35.3