ASoC: SOF: ipc4-topology: Only handle dai_config with HW_PARAMS for ChainDMA

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From: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>

commit ae67ed9010a7b52933ad1038d13df8a3aae34b83 upstream.

The DMA Link ID is only valid in snd_sof_dai_config_data when the
dai_config is called with HW_PARAMS.

The commit that this patch fixes is actually moved a code section without
changing it, the same bug exists in the original code, needing different
patch to kernel prior to 6.9 kernels.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 3858464de57b ("ASoC: SOF: ipc4-topology: change chain_dma handling in dai_config")
Link: https://github.com/thesofproject/linux/issues/5116
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Link: https://patch.msgid.link/20240724081932.24542-2-peter.ujfalusi@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 sound/soc/sof/ipc4-topology.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -3093,8 +3093,14 @@ static int sof_ipc4_dai_config(struct sn
 		return 0;
 
 	if (pipeline->use_chain_dma) {
-		pipeline->msg.primary &= ~SOF_IPC4_GLB_CHAIN_DMA_LINK_ID_MASK;
-		pipeline->msg.primary |= SOF_IPC4_GLB_CHAIN_DMA_LINK_ID(data->dai_data);
+		/*
+		 * Only configure the DMA Link ID for ChainDMA when this op is
+		 * invoked with SOF_DAI_CONFIG_FLAGS_HW_PARAMS
+		 */
+		if (flags & SOF_DAI_CONFIG_FLAGS_HW_PARAMS) {
+			pipeline->msg.primary &= ~SOF_IPC4_GLB_CHAIN_DMA_LINK_ID_MASK;
+			pipeline->msg.primary |= SOF_IPC4_GLB_CHAIN_DMA_LINK_ID(data->dai_data);
+		}
 		return 0;
 	}
 


Patches currently in stable-queue which might be from peter.ujfalusi@xxxxxxxxxxxxxxx are





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