dsp: q6voice: call voice MHI start/end APIs

Whenever a voice call starts or ends q6voice shall call
voice_MHI API to enable or disable MHI voting respectively.

Change-Id: Ia1125fb96c67ff6fec2242bc2b482ef7017dfb7d
Signed-off-by: Vikram Panduranga <[email protected]>

dsp/q6voice.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.
  */
 #include <linux/slab.h>
 #include <linux/kthread.h>
@@ -22,6 +22,7 @@
 #include <dsp/q6voice.h>
 #include <ipc/apr_tal.h>
 #include "adsp_err.h"
+#include <dsp/voice_mhi.h>
 
 #define TIMEOUT_MS 300
 
@@ -6809,6 +6810,11 @@ int voc_end_voice_call(uint32_t session_id)
 		voc_update_session_params(v);
 
 		voice_destroy_mvm_cvs_session(v);
+
+		ret = voice_mhi_end();
+		if (ret < 0)
+			pr_debug("%s: voice_mhi_end failed! %d\n",
+				 __func__, ret);
 		v->voc_state = VOC_RELEASE;
 	} else {
 		pr_err("%s: Error: End voice called in state %d\n",
@@ -7144,6 +7150,13 @@ int voc_start_voice_call(uint32_t session_id)
 					 __func__, ret);
 		}
 
+		ret = voice_mhi_start();
+		if (ret < 0) {
+			pr_debug("%s: voice_mhi_start failed! %d\n",
+				 __func__, ret);
+			goto fail;
+		}
+
 		ret = voice_create_mvm_cvs_session(v);
 		if (ret < 0) {
 			pr_err("create mvm and cvs failed\n");