ASoC: SOF: ipc4-pcm: Pipe instances to dev_dbg in multi_pipeline_state()

Add a dev_dbg to sof_ipc4_set_multi_pipeline_state(). The debug print
lists the pipeline instance numbers that are included in the
SOF_IPC4_GLB_SET_PIPELINE_STATE message. Without this log its very
hard to tell what pipelines are affected. This print is very helpful
when analyzing SOF logs automatically.

Signed-off-by: Jyri Sarha <jyri.sarha@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20250619121121.25241-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 24 insertions, 0 deletions

diff --git a/sound/soc/sof/ipc4-pcm.c b/sound/soc/sof/ipc4-pcm.c
index 8eee3e1aadf9..be4518d8970b 100644
--- a/sound/soc/sof/ipc4-pcm.c
+++ b/sound/soc/sof/ipc4-pcm.c
@@ -56,17 +56,41 @@ sof_ipc4_sps_to_time_info(struct snd_sof_pcm_stream *sps)
 	return stream_priv->time_info;
 }
 
+static
+char *sof_ipc4_set_multi_pipeline_state_debug(struct snd_sof_dev *sdev, char *buf, size_t size,
+					      struct ipc4_pipeline_set_state_data *trigger_list)
+{
+	int i, offset = 0;
+
+	for (i = 0; i < trigger_list->count; i++) {
+		offset += snprintf(buf + offset, size - offset, " %d",
+				   trigger_list->pipeline_instance_ids[i]);
+
+		if (offset >= size - 1) {
+			buf[size - 1] = '\0';
+			break;
+		}
+	}
+	return buf;
+}
+
 static int sof_ipc4_set_multi_pipeline_state(struct snd_sof_dev *sdev, u32 state,
 					     struct ipc4_pipeline_set_state_data *trigger_list)
 {
 	struct sof_ipc4_msg msg = {{ 0 }};
 	u32 primary, ipc_size;
+	char debug_buf[32];
 
 	/* trigger a single pipeline */
 	if (trigger_list->count == 1)
 		return sof_ipc4_set_pipeline_state(sdev, trigger_list->pipeline_instance_ids[0],
 						   state);
 
+	dev_dbg(sdev->dev, "Set pipelines %s to state %d%s",
+		sof_ipc4_set_multi_pipeline_state_debug(sdev, debug_buf, sizeof(debug_buf),
+							trigger_list),
+		state, sof_ipc4_pipeline_state_str(state));
+
 	primary = state;
 	primary |= SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_GLB_SET_PIPELINE_STATE);
 	primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);