diff --git a/drivers/gpu/drm/amd/powerplay/inc/smumgr.h b/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
index 0e5937295835..9b6531bd6350 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smumgr.h
@@ -33,6 +33,12 @@ struct pp_hwmgr;
 #define smu_lower_32_bits(n) ((uint32_t)(n))
 #define smu_upper_32_bits(n) ((uint32_t)(((n)>>16)>>16))
 
+extern const struct pp_smumgr_func cz_smu_funcs;
+extern const struct pp_smumgr_func iceland_smu_funcs;
+extern const struct pp_smumgr_func tonga_smu_funcs;
+extern const struct pp_smumgr_func fiji_smu_funcs;
+extern const struct pp_smumgr_func polaris10_smu_funcs;
+
 enum AVFS_BTC_STATUS {
 	AVFS_BTC_BOOT = 0,
 	AVFS_BTC_BOOT_STARTEDSMU,
@@ -168,13 +174,6 @@ extern int smu_allocate_memory(void *device, uint32_t size,
 			 void **kptr, void *handle);
 
 extern int smu_free_memory(void *device, void *handle);
-
-extern int cz_smum_init(struct pp_smumgr *smumgr);
-extern int iceland_smum_init(struct pp_smumgr *smumgr);
-extern int tonga_smum_init(struct pp_smumgr *smumgr);
-extern int fiji_smum_init(struct pp_smumgr *smumgr);
-extern int polaris10_smum_init(struct pp_smumgr *smumgr);
-
 extern int smum_update_sclk_threshold(struct pp_hwmgr *hwmgr);
 
 extern int smum_update_smc_table(struct pp_hwmgr *hwmgr, uint32_t type);
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c
index 2d4cf2c77c40..1f6744a443d4 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.c
@@ -737,9 +737,15 @@ static int cz_start_smu(struct pp_smumgr *smumgr)
 
 static int cz_smu_init(struct pp_smumgr *smumgr)
 {
-	struct cz_smumgr *cz_smu = (struct cz_smumgr *)smumgr->backend;
 	uint64_t mc_addr = 0;
 	int ret = 0;
+	struct cz_smumgr *cz_smu;
+
+	cz_smu = kzalloc(sizeof(struct cz_smumgr), GFP_KERNEL);
+	if (cz_smu == NULL)
+		return -ENOMEM;
+
+	smumgr->backend = cz_smu;
 
 	cz_smu->toc_buffer.data_size = 4096;
 	cz_smu->smu_buffer.data_size =
@@ -836,7 +842,7 @@ static int cz_smu_fini(struct pp_smumgr *smumgr)
 	return 0;
 }
 
-static const struct pp_smumgr_func cz_smu_funcs = {
+const struct pp_smumgr_func cz_smu_funcs = {
 	.smu_init = cz_smu_init,
 	.smu_fini = cz_smu_fini,
 	.start_smu = cz_start_smu,
@@ -850,15 +856,3 @@ static const struct pp_smumgr_func cz_smu_funcs = {
 	.upload_pptable_settings = cz_upload_pptable_settings,
 };
 
-int cz_smum_init(struct pp_smumgr *smumgr)
-{
-	struct cz_smumgr *cz_smu;
-
-	cz_smu = kzalloc(sizeof(struct cz_smumgr), GFP_KERNEL);
-	if (cz_smu == NULL)
-		return -ENOMEM;
-
-	smumgr->backend = cz_smu;
-	smumgr->smumgr_funcs = &cz_smu_funcs;
-	return 0;
-}
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.h b/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.h
index 883818039248..7c3a290c8957 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.h
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/cz_smumgr.h
@@ -95,8 +95,4 @@ struct cz_smumgr {
 	struct cz_buffer_entry scratch_buffer[MAX_NUM_SCRATCH];
 };
 
-struct pp_smumgr;
-
-extern int cz_smum_init(struct pp_smumgr *smumgr);
-
 #endif
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
index 71ff0bc09bb2..54b347366b5d 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c
@@ -464,13 +464,20 @@ static bool fiji_is_hw_avfs_present(struct pp_smumgr *smumgr)
 */
 static int fiji_smu_init(struct pp_smumgr *smumgr)
 {
-	struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend);
 	int i;
+	struct fiji_smumgr *fiji_priv = NULL;
+
+	fiji_priv = kzalloc(sizeof(struct fiji_smumgr), GFP_KERNEL);
+
+	if (fiji_priv == NULL)
+		return -ENOMEM;
+
+	smumgr->backend = fiji_priv;
 
 	if (smu7_init(smumgr))
 		return -EINVAL;
 
-	priv->avfs.AvfsBtcStatus = AVFS_BTC_BOOT;
+	fiji_priv->avfs.AvfsBtcStatus = AVFS_BTC_BOOT;
 	if (fiji_is_hw_avfs_present(smumgr))
 		/* AVFS Parameter
 		 * 0 - BTC DC disabled, BTC AC disabled
@@ -479,18 +486,18 @@ static int fiji_smu_init(struct pp_smumgr *smumgr)
 		 * 3 - BTC DC enabled,  BTC AC enabled
 		 * Default is 0 - BTC DC disabled, BTC AC disabled
 		 */
-		priv->avfs.AvfsBtcParam = 0;
+		fiji_priv->avfs.AvfsBtcParam = 0;
 	else
-		priv->avfs.AvfsBtcStatus = AVFS_BTC_NOTSUPPORTED;
+		fiji_priv->avfs.AvfsBtcStatus = AVFS_BTC_NOTSUPPORTED;
 
 	for (i = 0; i < SMU73_MAX_LEVELS_GRAPHICS; i++)
-		priv->activity_target[i] = 30;
+		fiji_priv->activity_target[i] = 30;
 
 	return 0;
 }
 
 
-static const struct pp_smumgr_func fiji_smu_funcs = {
+const struct pp_smumgr_func fiji_smu_funcs = {
 	.smu_init = &fiji_smu_init,
 	.smu_fini = &smu7_smu_fini,
 	.start_smu = &fiji_start_smu,
@@ -513,18 +520,3 @@ static const struct pp_smumgr_func fiji_smu_funcs = {
 	.initialize_mc_reg_table = fiji_initialize_mc_reg_table,
 	.is_dpm_running = fiji_is_dpm_running,
 };
-
-int fiji_smum_init(struct pp_smumgr *smumgr)
-{
-	struct fiji_smumgr *fiji_smu = NULL;
-
-	fiji_smu = kzalloc(sizeof(struct fiji_smumgr), GFP_KERNEL);
-
-	if (fiji_smu == NULL)
-		return -ENOMEM;
-
-	smumgr->backend = fiji_smu;
-	smumgr->smumgr_funcs = &fiji_smu_funcs;
-
-	return 0;
-}
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c
index c830ea363575..0bf2def3b659 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c
@@ -201,17 +201,25 @@ static int iceland_start_smu(struct pp_smumgr *smumgr)
 static int iceland_smu_init(struct pp_smumgr *smumgr)
 {
 	int i;
-	struct iceland_smumgr *smu_data = (struct iceland_smumgr *)(smumgr->backend);
+	struct iceland_smumgr *iceland_priv = NULL;
+
+	iceland_priv = kzalloc(sizeof(struct iceland_smumgr), GFP_KERNEL);
+
+	if (iceland_priv == NULL)
+		return -ENOMEM;
+
+	smumgr->backend = iceland_priv;
+
 	if (smu7_init(smumgr))
 		return -EINVAL;
 
 	for (i = 0; i < SMU71_MAX_LEVELS_GRAPHICS; i++)
-		smu_data->activity_target[i] = 30;
+		iceland_priv->activity_target[i] = 30;
 
 	return 0;
 }
 
-static const struct pp_smumgr_func iceland_smu_funcs = {
+const struct pp_smumgr_func iceland_smu_funcs = {
 	.smu_init = &iceland_smu_init,
 	.smu_fini = &smu7_smu_fini,
 	.start_smu = &iceland_start_smu,
@@ -234,17 +242,3 @@ static const struct pp_smumgr_func iceland_smu_funcs = {
 	.is_dpm_running = iceland_is_dpm_running,
 };
 
-int iceland_smum_init(struct pp_smumgr *smumgr)
-{
-	struct iceland_smumgr *iceland_smu = NULL;
-
-	iceland_smu = kzalloc(sizeof(struct iceland_smumgr), GFP_KERNEL);
-
-	if (iceland_smu == NULL)
-		return -ENOMEM;
-
-	smumgr->backend = iceland_smu;
-	smumgr->smumgr_funcs = &iceland_smu_funcs;
-
-	return 0;
-}
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
index 47fbc733ab55..ce20ae2e520e 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
@@ -364,9 +364,15 @@ static bool polaris10_is_hw_avfs_present(struct pp_smumgr *smumgr)
 
 static int polaris10_smu_init(struct pp_smumgr *smumgr)
 {
-	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)(smumgr->backend);
+	struct polaris10_smumgr *smu_data;
 	int i;
 
+	smu_data = kzalloc(sizeof(struct polaris10_smumgr), GFP_KERNEL);
+	if (smu_data == NULL)
+		return -ENOMEM;
+
+	smumgr->backend = smu_data;
+
 	if (smu7_init(smumgr))
 		return -EINVAL;
 
@@ -381,7 +387,7 @@ static int polaris10_smu_init(struct pp_smumgr *smumgr)
 	return 0;
 }
 
-static const struct pp_smumgr_func polaris10_smu_funcs = {
+const struct pp_smumgr_func polaris10_smu_funcs = {
 	.smu_init = polaris10_smu_init,
 	.smu_fini = smu7_smu_fini,
 	.start_smu = polaris10_start_smu,
@@ -404,18 +410,3 @@ static const struct pp_smumgr_func polaris10_smu_funcs = {
 	.get_mac_definition = polaris10_get_mac_definition,
 	.is_dpm_running = polaris10_is_dpm_running,
 };
-
-int polaris10_smum_init(struct pp_smumgr *smumgr)
-{
-	struct polaris10_smumgr *polaris10_smu = NULL;
-
-	polaris10_smu = kzalloc(sizeof(struct polaris10_smumgr), GFP_KERNEL);
-
-	if (polaris10_smu == NULL)
-		return -EINVAL;
-
-	smumgr->backend = polaris10_smu;
-	smumgr->smumgr_funcs = &polaris10_smu_funcs;
-
-	return 0;
-}
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
index d5244c16d2d5..60c36928284c 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smumgr.c
@@ -41,6 +41,7 @@ MODULE_FIRMWARE("amdgpu/polaris11_smc.bin");
 MODULE_FIRMWARE("amdgpu/polaris11_smc_sk.bin");
 MODULE_FIRMWARE("amdgpu/polaris12_smc.bin");
 
+
 int smum_early_init(struct pp_instance *handle)
 {
 	struct pp_smumgr *smumgr;
@@ -61,23 +62,23 @@ int smum_early_init(struct pp_instance *handle)
 
 	switch (smumgr->chip_family) {
 	case AMDGPU_FAMILY_CZ:
-		cz_smum_init(smumgr);
+		smumgr->smumgr_funcs = &cz_smu_funcs;
 		break;
 	case AMDGPU_FAMILY_VI:
 		switch (smumgr->chip_id) {
 		case CHIP_TOPAZ:
-			iceland_smum_init(smumgr);
+			smumgr->smumgr_funcs = &iceland_smu_funcs;
 			break;
 		case CHIP_TONGA:
-			tonga_smum_init(smumgr);
+			smumgr->smumgr_funcs = &tonga_smu_funcs;
 			break;
 		case CHIP_FIJI:
-			fiji_smum_init(smumgr);
+			smumgr->smumgr_funcs = &fiji_smu_funcs;
 			break;
 		case CHIP_POLARIS11:
 		case CHIP_POLARIS10:
 		case CHIP_POLARIS12:
-			polaris10_smum_init(smumgr);
+			smumgr->smumgr_funcs = &polaris10_smu_funcs;
 			break;
 		default:
 			return -EINVAL;
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
index 858568b8c980..a7d55366f2d2 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
@@ -169,20 +169,25 @@ static int tonga_start_smu(struct pp_smumgr *smumgr)
  */
 static int tonga_smu_init(struct pp_smumgr *smumgr)
 {
-	struct tonga_smumgr *smu_data = (struct tonga_smumgr *)(smumgr->backend);
+	struct tonga_smumgr *tonga_priv = NULL;
+	int  i;
 
-	int i;
+	tonga_priv = kzalloc(sizeof(struct tonga_smumgr), GFP_KERNEL);
+	if (tonga_priv == NULL)
+		return -ENOMEM;
+
+	smumgr->backend = tonga_priv;
 
 	if (smu7_init(smumgr))
 		return -EINVAL;
 
 	for (i = 0; i < SMU72_MAX_LEVELS_GRAPHICS; i++)
-		smu_data->activity_target[i] = 30;
+		tonga_priv->activity_target[i] = 30;
 
 	return 0;
 }
 
-static const struct pp_smumgr_func tonga_smu_funcs = {
+const struct pp_smumgr_func tonga_smu_funcs = {
 	.smu_init = &tonga_smu_init,
 	.smu_fini = &smu7_smu_fini,
 	.start_smu = &tonga_start_smu,
@@ -205,18 +210,3 @@ static const struct pp_smumgr_func tonga_smu_funcs = {
 	.initialize_mc_reg_table = tonga_initialize_mc_reg_table,
 	.is_dpm_running = tonga_is_dpm_running,
 };
-
-int tonga_smum_init(struct pp_smumgr *smumgr)
-{
-	struct tonga_smumgr *tonga_smu = NULL;
-
-	tonga_smu = kzalloc(sizeof(struct tonga_smumgr), GFP_KERNEL);
-
-	if (tonga_smu == NULL)
-		return -ENOMEM;
-
-	smumgr->backend = tonga_smu;
-	smumgr->smumgr_funcs = &tonga_smu_funcs;
-
-	return 0;
-}