drm/amdgpu: use PCI_D3hot for PX systems without dGPU power control

On PX systems without dGPU power control, use PCI_D3hot.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index f122703cd2ca59e90d1e6ab3ebba102ed0c375bb..7e49bf450b9c1c509a9cad325adbd19f3c4a6b2e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -417,7 +417,10 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev)
        pci_save_state(pdev);
        pci_disable_device(pdev);
        pci_ignore_hotplug(pdev);
-       pci_set_power_state(pdev, PCI_D3cold);
+       if (amdgpu_has_atpx_dgpu_power_cntl())
+               pci_set_power_state(pdev, PCI_D3cold);
+       else
+               pci_set_power_state(pdev, PCI_D3hot);
        drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
 
        return 0;