drm/amdgpu: don't enable/disable display twice on suspend/resume

We were doing it in the common code and in the IP specific code.
Remove the IP specific code.  The common code handles the
ordering properly.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/dce_v10_0.c

@@ -3017,16 +3017,8 @@ static int dce_v10_0_hw_fini(void *handle)
 
 static int dce_v10_0_suspend(void *handle)
 {
-	struct drm_connector *connector;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	drm_kms_helper_poll_disable(adev->ddev);
-
-	/* turn off display hw */
-	list_for_each_entry(connector, &adev->ddev->mode_config.connector_list, head) {
-		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
-	}
-
 	amdgpu_atombios_scratch_regs_save(adev);
 
 	dce_v10_0_hpd_fini(adev);
@@ -3036,7 +3028,6 @@ static int dce_v10_0_suspend(void *handle)
 
 static int dce_v10_0_resume(void *handle)
 {
-	struct drm_connector *connector;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	dce_v10_0_init_golden_registers(adev);
@@ -3057,15 +3048,6 @@ static int dce_v10_0_resume(void *handle)
 	/* initialize hpd */
 	dce_v10_0_hpd_init(adev);
 
-	/* blat the mode back in */
-	drm_helper_resume_force_mode(adev->ddev);
-	/* turn on display hw */
-	list_for_each_entry(connector, &adev->ddev->mode_config.connector_list, head) {
-		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
-	}
-
-	drm_kms_helper_poll_enable(adev->ddev);
-
 	return 0;
 }
 

drivers/gpu/drm/amd/amdgpu/dce_v11_0.c

@@ -3015,16 +3015,8 @@ static int dce_v11_0_hw_fini(void *handle)
 
 static int dce_v11_0_suspend(void *handle)
 {
-	struct drm_connector *connector;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	drm_kms_helper_poll_disable(adev->ddev);
-
-	/* turn off display hw */
-	list_for_each_entry(connector, &adev->ddev->mode_config.connector_list, head) {
-		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
-	}
-
 	amdgpu_atombios_scratch_regs_save(adev);
 
 	dce_v11_0_hpd_fini(adev);
@@ -3034,7 +3026,6 @@ static int dce_v11_0_suspend(void *handle)
 
 static int dce_v11_0_resume(void *handle)
 {
-	struct drm_connector *connector;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	dce_v11_0_init_golden_registers(adev);
@@ -3056,15 +3047,6 @@ static int dce_v11_0_resume(void *handle)
 	/* initialize hpd */
 	dce_v11_0_hpd_init(adev);
 
-	/* blat the mode back in */
-	drm_helper_resume_force_mode(adev->ddev);
-	/* turn on display hw */
-	list_for_each_entry(connector, &adev->ddev->mode_config.connector_list, head) {
-		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
-	}
-
-	drm_kms_helper_poll_enable(adev->ddev);
-
 	return 0;
 }
 

drivers/gpu/drm/amd/amdgpu/dce_v8_0.c

@@ -2948,16 +2948,8 @@ static int dce_v8_0_hw_fini(void *handle)
 
 static int dce_v8_0_suspend(void *handle)
 {
-	struct drm_connector *connector;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	drm_kms_helper_poll_disable(adev->ddev);
-
-	/* turn off display hw */
-	list_for_each_entry(connector, &adev->ddev->mode_config.connector_list, head) {
-		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
-	}
-
 	amdgpu_atombios_scratch_regs_save(adev);
 
 	dce_v8_0_hpd_fini(adev);
@@ -2967,7 +2959,6 @@ static int dce_v8_0_suspend(void *handle)
 
 static int dce_v8_0_resume(void *handle)
 {
-	struct drm_connector *connector;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	amdgpu_atombios_scratch_regs_restore(adev);
@@ -2986,15 +2977,6 @@ static int dce_v8_0_resume(void *handle)
 	/* initialize hpd */
 	dce_v8_0_hpd_init(adev);
 
-	/* blat the mode back in */
-	drm_helper_resume_force_mode(adev->ddev);
-	/* turn on display hw */
-	list_for_each_entry(connector, &adev->ddev->mode_config.connector_list, head) {
-		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
-	}
-
-	drm_kms_helper_poll_enable(adev->ddev);
-
 	return 0;
 }