[PATCH v2 13/14] ASoC: Intel: avs: Prepare modules before bindings them

[Cezary Rojewski]

When binding modules to pins other than pin0, sometimes additional
preparations need to be made, depending on the module type.
Add function that prepares modules when necessary before binding them.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski at linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski at intel.com>
---
 sound/soc/intel/avs/path.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/sound/soc/intel/avs/path.c b/sound/soc/intel/avs/path.c
index 13006c24ebf8..916a4f25636e 100644
--- a/sound/soc/intel/avs/path.c
+++ b/sound/soc/intel/avs/path.c
@@ -463,6 +463,37 @@ struct avs_path *avs_path_create(struct avs_dev *adev, u32 dma_id,
 	return path;
 }
 
+static int avs_path_bind_prepare(struct avs_dev *adev,
+				 struct avs_path_binding *binding)
+{
+	const struct avs_audio_format *src_fmt, *sink_fmt;
+	struct avs_tplg_module *tsource = binding->source->template;
+	struct avs_path_module *source = binding->source;
+	int ret;
+
+	/*
+	 * only copier modules about to be bound
+	 * to output pin other than 0 need preparation
+	 */
+	if (!binding->source_pin)
+		return 0;
+	if (!guid_equal(&tsource->cfg_ext->type, &AVS_COPIER_MOD_UUID))
+		return 0;
+
+	src_fmt = tsource->in_fmt;
+	sink_fmt = binding->sink->template->in_fmt;
+
+	ret = avs_ipc_copier_set_sink_format(adev, source->module_id,
+					     source->instance_id, binding->source_pin,
+					     src_fmt, sink_fmt);
+	if (ret) {
+		dev_err(adev->dev, "config copier failed: %d\n", ret);
+		return AVS_IPC_RET(ret);
+	}
+
+	return 0;
+}
+
 int avs_path_bind(struct avs_path *path)
 {
 	struct avs_path_pipeline *ppl;
@@ -478,6 +509,10 @@ int avs_path_bind(struct avs_path *path)
 			source = binding->source;
 			sink = binding->sink;
 
+			ret = avs_path_bind_prepare(adev, binding);
+			if (ret < 0)
+				return ret;
+
 			ret = avs_ipc_bind(adev, source->module_id,
 					   source->instance_id, sink->module_id,
 					   sink->instance_id, binding->sink_pin,
-- 
2.25.1