linux-kernel - [PATCH 1/4] ASoC: SOF: ipc4-topology: Do not set ALH node

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Message-ID: <20241016032910.14601-2-yung-chuan.liao@linux.intel.com>
Date: Wed, 16 Oct 2024 11:29:07 +0800
From: Bard Liao <yung-chuan.liao@...ux.intel.com>
To: broonie@...nel.org,
	tiwai@...e.de,
	vkoul@...nel.org
Cc: vinod.koul@...aro.org,
	linux-kernel@...r.kernel.org,
	linux-sound@...r.kernel.org,
	pierre-louis.bossart@...ux.dev,
	bard.liao@...el.com,
	ranjani.sridharan@...ux.intel.com
Subject: [PATCH 1/4] ASoC: SOF: ipc4-topology: Do not set ALH node_id for aggregated DAIs

From: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>

For aggregated DAIs, the node ID is set to the group_id during the DAI
widget's ipc_prepare op. With the current logic, setting the dai_index
for node_id in the dai_config is redundant as it will be overwritten
with the group_id anyway. Removing it will also prevent any accidental
clearing/resetting of the group_id for aggregated DAIs due to the
dai_config calls could that happen before the allocated group_id is
freed.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@...ux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@...ux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
---
 sound/soc/sof/ipc4-topology.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c
index 56427d6e3679..1fcf4692a21f 100644
--- a/sound/soc/sof/ipc4-topology.c
+++ b/sound/soc/sof/ipc4-topology.c
@@ -3250,9 +3250,20 @@ static int sof_ipc4_dai_config(struct snd_sof_dev *sdev, struct snd_sof_widget *
 		 * group_id during copier's ipc_prepare op.
 		 */
 		if (flags & SOF_DAI_CONFIG_FLAGS_HW_PARAMS) {
+			struct sof_ipc4_alh_configuration_blob *blob;
+
+			blob = (struct sof_ipc4_alh_configuration_blob *)ipc4_copier->copier_config;
 			ipc4_copier->dai_index = data->dai_node_id;
-			copier_data->gtw_cfg.node_id &= ~SOF_IPC4_NODE_INDEX_MASK;
-			copier_data->gtw_cfg.node_id |= SOF_IPC4_NODE_INDEX(data->dai_node_id);
+
+			/*
+			 * no need to set the node_id for aggregated DAI's. These will be assigned
+			 * a group_id during widget ipc_prepare
+			 */
+			if (blob->alh_cfg.device_count == 1) {
+				copier_data->gtw_cfg.node_id &= ~SOF_IPC4_NODE_INDEX_MASK;
+				copier_data->gtw_cfg.node_id |=
+					SOF_IPC4_NODE_INDEX(data->dai_node_id);
+			}
 		}
 
 		break;
-- 
2.43.0