drm/amd/powerplay: add interface to notify smu enable pme restore register

This patch adds interface to notify smu enable pme restore register for display
and in smu v11 didn't have this implementation.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Kevin Wang <Kevin1.Wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c

@@ -593,10 +593,10 @@ void pp_rv_set_pme_wa_enable(struct pp_smu *pp)
 	void *pp_handle = adev->powerplay.pp_handle;
 	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 
-	if (!pp_funcs || !pp_funcs->notify_smu_enable_pwe)
-		return;
-
-	pp_funcs->notify_smu_enable_pwe(pp_handle);
+	if (pp_funcs && pp_funcs->notify_smu_enable_pwe)
+		pp_funcs->notify_smu_enable_pwe(pp_handle);
+	else if (adev->smu.funcs)
+		smu_notify_smu_enable_pwe(&adev->smu);
 }
 
 void pp_rv_set_active_display_count(struct pp_smu *pp, int count)

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

@@ -319,6 +319,7 @@ struct smu_funcs
 			      struct smu_performance_level *level);
 	int (*get_current_shallow_sleep_clocks)(struct smu_context *smu,
 						struct smu_clock_info *clocks);
+	int (*notify_smu_enable_pwe)(struct smu_context *smu);
 };
 
 #define smu_init_microcode(smu) \
@@ -436,6 +437,8 @@ struct smu_funcs
 	((smu)->funcs->get_perf_level ? (smu)->funcs->get_perf_level((smu), (designation), (level)) : 0)
 #define smu_get_current_shallow_sleep_clocks(smu, clocks) \
 	((smu)->funcs->get_current_shallow_sleep_clocks ? (smu)->funcs->get_current_shallow_sleep_clocks((smu), (clocks)) : 0)
+#define smu_notify_smu_enable_pwe(smu) \
+	((smu)->funcs->notify_smu_enable_pwe ? (smu)->funcs->notify_smu_enable_pwe((smu)) : 0)
 
 
 extern int smu_get_atom_data_table(struct smu_context *smu, uint32_t table,