Commit 19134317 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add baco support to runtime suspend/resume 



BACO - Bus Active, Chip Off

This adds the necessary support to the runtime suspend
and resume functions to handle boards that support
baco.

Reviewed-by: default avatarEvan Quan <evan.quan@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 361dbd01

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

+6 −1
Original line number Diff line number Diff line
@@ -1155,7 +1155,8 @@ static int amdgpu_pmops_resume(struct device *dev) 
	struct drm_device *drm_dev = dev_get_drvdata(dev);



	/* GPU comes up enabled by the bios on resume */

	if (amdgpu_device_supports_boco(drm_dev)) {

	if (amdgpu_device_supports_boco(drm_dev) ||

	    amdgpu_device_supports_baco(drm_dev)) {

		pm_runtime_disable(dev);

		pm_runtime_set_active(dev);

		pm_runtime_enable(dev);
@@ -1222,6 +1223,8 @@ 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;

	} else if (amdgpu_device_supports_baco(drm_dev)) {

		amdgpu_device_baco_enter(drm_dev);

	}



	return 0;
@@ -1247,6 +1250,8 @@ static int amdgpu_pmops_runtime_resume(struct device *dev) 
		if (ret)

			return ret;

		pci_set_master(pdev);

	} else if (amdgpu_device_supports_baco(drm_dev)) {

		amdgpu_device_baco_exit(drm_dev);

	}

	ret = amdgpu_device_resume(drm_dev, false, false);

	drm_kms_helper_poll_enable(drm_dev);