diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
index dae35a9..95c0244 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
@@ -34,6 +34,7 @@ struct amdgpu_atpx {
 
 static struct amdgpu_atpx_priv {
 	bool atpx_detected;
+	bool bridge_pm_usable;
 	/* handle for device - and atpx */
 	acpi_handle dhandle;
 	acpi_handle other_handle;
@@ -205,7 +206,8 @@ static int amdgpu_atpx_validate(struct amdgpu_atpx *atpx)
 	atpx->is_hybrid = false;
 	if (valid_bits & ATPX_MS_HYBRID_GFX_SUPPORTED) {
 		printk("ATPX Hybrid Graphics\n");
-		atpx->functions.power_cntl = false;
+		/* Disable legacy PM methods only when pcie port PM is usable. */
+		atpx->functions.power_cntl = !amdgpu_atpx_priv->bridge_pm_usable;
 		atpx->is_hybrid = true;
 	}
 
@@ -480,6 +482,7 @@ static int amdgpu_atpx_power_state(enum vga_switcheroo_client_id id,
  */
 static bool amdgpu_atpx_pci_probe_handle(struct pci_dev *pdev)
 {
+	struct pci_dev *parent_pdev = pci_upstream_bridge(pdev);
 	acpi_handle dhandle, atpx_handle;
 	acpi_status status;
 
@@ -494,6 +497,7 @@ static bool amdgpu_atpx_pci_probe_handle(struct pci_dev *pdev)
 	}
 	amdgpu_atpx_priv.dhandle = dhandle;
 	amdgpu_atpx_priv.atpx.handle = atpx_handle;
+	amdgpu_atpx_priv.bridge_pm_usable = parent_pdev && parent_pdev->bridge_d3;
 	return true;
 }