copier-dai: Add copier_dai_prepare in copier dai source file

Add this function to integrate copier dai prepare code.
Signed-off-by: Baofeng Tian <baofeng.tian@intel.com>

Author: btian1

src/audio/copier/copier.c

@@ -477,7 +477,7 @@ static int copy_single_channel_c32(const struct audio_stream __sparse_cache *src
 staticintcopier_prepare(structcomp_dev*dev)
 {
 structcopier_data*cd=comp_get_drvdata(dev);
-intret, i;
+intret;
 
 comp_dbg(dev, "copier_prepare()");
 
@@ -503,25 +503,9 @@ static int copier_prepare(struct comp_dev *dev)
  }
 break;
 caseSOF_COMP_DAI:
-if (cd->endpoint_num==1) {
-ret=dai_zephyr_config_prepare(cd->dd[0], dev);
-if (ret<0)
-returnret;
-
-ret=dai_zephyr_prepare(cd->dd[0], dev);
-if (ret<0)
-returnret;
- } else {
-for (i=0; i<cd->endpoint_num; i++) {
-ret=dai_zephyr_config_prepare(cd->dd[i], dev);
-if (ret<0)
-returnret;
-
-ret=dai_zephyr_prepare(cd->dd[i], dev);
-if (ret<0)
-returnret;
- }
- }
+ret=copier_dai_prepare(dev, cd);
+if (ret<0)
+returnret;
 break;
 default:
 break;

src/audio/copier/copier_dai.c

@@ -286,3 +286,20 @@ void copier_dai_free(struct copier_data *cd)
 rfree(cd->dd[i]);
 	}
 }
+
+intcopier_dai_prepare(structcomp_dev*dev, structcopier_data*cd)
+{
+intret;
+
+for (inti=0; i<cd->endpoint_num; i++) {
+ret=dai_zephyr_config_prepare(cd->dd[i], dev);
+if (ret<0)
+returnret;
+
+ret=dai_zephyr_prepare(cd->dd[i], dev);
+if (ret<0)
+returnret;
+	}
+
+return0;
+}

src/include/sof/audio/dai_copier.h

@@ -63,4 +63,6 @@ int copier_dai_create(struct comp_dev *parent_dev, struct copier_data *cd,
 structpipeline*pipeline);
 
 voidcopier_dai_free(structcopier_data*cd);
+
+intcopier_dai_prepare(structcomp_dev*dev, structcopier_data*cd);
 #endif/* __SOF_LIB_DAI_COPIER_H__ */