asoc: update passthrough mode in transcode loopback driver

Update passthrough mode to pick proper path type for
compressed input data port in transcode loopback driver
to support compressed input in DSP loopback.

Change-Id: Ib2f66b467456787e08265a0da2bd85bb881a5d61
Signed-off-by: Siddartha Shaik <[email protected]>
Signed-off-by: Surendar Karka <[email protected]>

asoc/msm-transcode-loopback-q6-v2.c

@@ -111,7 +111,8 @@ static void loopback_event_handler(uint32_t opcode,
 	switch (opcode) {
 	case ASM_STREAM_CMD_ENCDEC_EVENTS:
 	case ASM_IEC_61937_MEDIA_FMT_EVENT:
-		pr_debug("%s: ASM_IEC_61937_MEDIA_FMT_EVENT\n", __func__);
+		pr_debug("%s: Handling stream event : 0X%x\n",
+			__func__, opcode);
 		rtd = cstream->private_data;
 		if (!rtd) {
 			pr_err("%s: rtd is NULL\n", __func__);
@@ -448,17 +449,17 @@ static int msm_transcode_loopback_set_params(struct snd_compr_stream *cstream,
 					trans->audio_client->perf_mode,
 					trans->session_id,
 					SNDRV_PCM_STREAM_CAPTURE,
-					true);
+					COMPRESSED_PASSTHROUGH_GEN);
 		else
 			msm_pcm_routing_reg_phy_stream(
 					soc_pcm_tx->dai_link->id,
 					trans->audio_client->perf_mode,
 					trans->session_id,
 					SNDRV_PCM_STREAM_CAPTURE);
-
+		/* Opening Rx ADM in LOW_LATENCY mode by default */
 		msm_pcm_routing_reg_phy_stream(
 					soc_pcm_rx->dai_link->id,
-					trans->audio_client->perf_mode,
+					true,
 					trans->session_id,
 					SNDRV_PCM_STREAM_PLAYBACK);
 		pr_debug("%s: Successfully opened ADM sessions\n", __func__);
@@ -912,10 +913,21 @@ static int msm_transcode_loopback_probe(struct snd_soc_platform *platform)
 	return 0;
 }
 
+static int msm_transcode_loopback_remove(struct snd_soc_platform *platform)
+{
+	struct trans_loopback_pdata *pdata = NULL;
+
+	pdata = (struct trans_loopback_pdata *)
+			snd_soc_platform_get_drvdata(platform);
+	kfree(pdata);
+	return 0;
+}
+
 static struct snd_soc_platform_driver msm_soc_platform = {
 	.probe		= msm_transcode_loopback_probe,
 	.compr_ops	= &msm_transcode_loopback_ops,
 	.pcm_new	= msm_transcode_loopback_new,
+	.remove		= msm_transcode_loopback_remove,
 };
 
 static int msm_transcode_dev_probe(struct platform_device *pdev)