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[1/2] ASoC: SOF: ipc4-topology: Only handle dai_config with HW_PARAMS for ChainDMA

Message ID 20240724081932.24542-2-peter.ujfalusi@linux.intel.com (mailing list archive)
State Accepted
Commit ae67ed9010a7b52933ad1038d13df8a3aae34b83
Headers show
Series ASoC SOF: ipc4-topology: Fix LinkID handling for ChainDMA | expand

Commit Message

Peter Ujfalusi July 24, 2024, 8:19 a.m. UTC 
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@vger.kernel.org
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@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/sof/ipc4-topology.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
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Patch

diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index 90f6856ee80c..4a4234d5c941 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -3095,8 +3095,14 @@  static int sof_ipc4_dai_config(struct snd_sof_dev *sdev, struct snd_sof_widget *
 		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;
 	}