[PATCH v2 3/9] ASoC: qdsp6: audioreach: update dapm kcontrol private data

[Srinivas Kandagatla]

Update kcontrol private date to include more information like graph id
and module instance id which its connected to. Also maintain this virtual
dapm mixer widget in a list so that we could lookup while FE and BE connection
are added.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
 sound/soc/qcom/qdsp6/q6apm.c    |  1 +
 sound/soc/qcom/qdsp6/q6apm.h    |  1 +
 sound/soc/qcom/qdsp6/topology.c | 19 ++++++++++++++++++-
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/sound/soc/qcom/qdsp6/q6apm.c b/sound/soc/qcom/qdsp6/q6apm.c
index 794019286c70..81e2d7090fb4 100644
--- a/sound/soc/qcom/qdsp6/q6apm.c
+++ b/sound/soc/qcom/qdsp6/q6apm.c
@@ -731,6 +731,7 @@ static int apm_probe(gpr_device_t *gdev)
 	apm->gdev = gdev;
 	init_waitqueue_head(&apm->wait);
 
+	INIT_LIST_HEAD(&apm->widget_list);
 	idr_init(&apm->graph_idr);
 	idr_init(&apm->graph_info_idr);
 	idr_init(&apm->sub_graphs_idr);
diff --git a/sound/soc/qcom/qdsp6/q6apm.h b/sound/soc/qcom/qdsp6/q6apm.h
index 54eadadf712c..96ad5ea2ae07 100644
--- a/sound/soc/qcom/qdsp6/q6apm.h
+++ b/sound/soc/qcom/qdsp6/q6apm.h
@@ -58,6 +58,7 @@ struct q6apm {
 	struct mutex lock;
 	uint32_t state;
 
+	struct list_head widget_list;
 	struct idr graph_idr;
 	struct idr graph_info_idr;
 	struct idr sub_graphs_idr;
diff --git a/sound/soc/qcom/qdsp6/topology.c b/sound/soc/qcom/qdsp6/topology.c
index 9a3d9e0eae53..0c4886d30131 100644
--- a/sound/soc/qcom/qdsp6/topology.c
+++ b/sound/soc/qcom/qdsp6/topology.c
@@ -16,7 +16,11 @@
 #include "audioreach.h"
 
 struct snd_ar_control {
+	u32 graph_id; /* Graph ID */
 	u32 sgid; /* Sub Graph ID */
+	u32 module_instance_id; /* Connected Module Instance ID */
+	struct snd_soc_dapm_widget *w;
+	struct list_head node;
 	struct snd_soc_component *scomp;
 };
 
@@ -692,6 +696,7 @@ static int audioreach_widget_load_mixer(struct snd_soc_component *component,
 	struct snd_soc_tplg_vendor_value_elem *w_elem;
 	struct snd_soc_tplg_vendor_array *w_array;
 	struct snd_ar_control *scontrol;
+	struct q6apm *data = dev_get_drvdata(component->dev);
 	struct snd_soc_dobj *dobj;
 	int tkn_count = 0;
 
@@ -711,6 +716,9 @@ static int audioreach_widget_load_mixer(struct snd_soc_component *component,
 		case AR_TKN_U32_SUB_GRAPH_INSTANCE_ID:
 			scontrol->sgid = le32_to_cpu(w_elem->value);
 			break;
+		case AR_TKN_DAI_INDEX:
+			scontrol->graph_id = le32_to_cpu(w_elem->value);
+			break;
 		default: /* ignore other tokens */
 			break;
 		}
@@ -718,6 +726,9 @@ static int audioreach_widget_load_mixer(struct snd_soc_component *component,
 		w_elem++;
 	}
 
+	scontrol->w = w;
+	list_add_tail(&scontrol->node, &data->widget_list);
+
 	return 0;
 }
 
@@ -819,7 +830,10 @@ static int audioreach_widget_unload(struct snd_soc_component *scomp,
 
 	if (w->id == snd_soc_dapm_mixer) {
 		/* virtual widget */
-		kfree(dobj->private);
+		struct snd_ar_control *scontrol = dobj->private;
+
+		list_del(&scontrol->node);
+		kfree(scontrol);
 		return 0;
 	}
 
@@ -998,6 +1012,9 @@ static int audioreach_control_load_mix(struct snd_soc_component *scomp,
 		case AR_TKN_U32_SUB_GRAPH_INSTANCE_ID:
 			scontrol->sgid = le32_to_cpu(c_elem->value);
 			break;
+		case AR_TKN_DAI_INDEX:
+			scontrol->graph_id = le32_to_cpu(c_elem->value);
+			break;
 		default:
 			/* Ignore other tokens */
 			break;
-- 
2.21.0