drm/amdgpu: add additional boco checks to runtime suspend/resume (v2)

BACO - Bus Active, Chip Off
BOCO - Bus Off, Chip Off

We will take slightly different paths for boco and baco.

v2: fold together two consecutive if clauses

Reviewed-by: Evan Quan <evan.quan@amd.com> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1208,10 +1208,12 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev)
 		return -EBUSY;
 	}
 
+	if (amdgpu_device_supports_boco(drm_dev))
 		drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
 	drm_kms_helper_poll_disable(drm_dev);
 
 	ret = amdgpu_device_suspend(drm_dev, false, false);
+	if (amdgpu_device_supports_boco(drm_dev)) {
 		pci_save_state(pdev);
 		pci_disable_device(pdev);
 		pci_ignore_hotplug(pdev);
@@ -1220,6 +1222,7 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev)
 		else if (!amdgpu_has_atpx_dgpu_power_cntl())
 			pci_set_power_state(pdev, PCI_D3hot);
 		drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
+	}
 
 	return 0;
 }
@@ -1233,6 +1236,7 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
 	if (!amdgpu_device_supports_boco(drm_dev))
 		return -EINVAL;
 
+	if (amdgpu_device_supports_boco(drm_dev)) {
 		drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
 
 		if (amdgpu_is_atpx_hybrid() ||
@@ -1243,9 +1247,10 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
 		if (ret)
 			return ret;
 		pci_set_master(pdev);
-
+	}
 	ret = amdgpu_device_resume(drm_dev, false, false);
 	drm_kms_helper_poll_enable(drm_dev);
+	if (amdgpu_device_supports_boco(drm_dev))
 		drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 	return 0;
 }