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>
---
sound/soc/sof/ipc4-topology.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
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;
}
--
2.45.2
