drm/radeon: fix runtime suspend breaking secondary GPUs

Same fix as for nouveau, when we fail with EINVAL, subsequent
gets fail hard, causing the device not to open.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 84a1bbb75f91..f633c2782170 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -403,11 +403,15 @@ static int radeon_pmops_runtime_suspend(struct device *dev)
         struct drm_device *drm_dev = pci_get_drvdata(pdev);
         int ret;
 
-        if (radeon_runtime_pm == 0)
-                return -EINVAL;
+        if (radeon_runtime_pm == 0) {
+                pm_runtime_forbid(dev);
+                return -EBUSY;
+        }
 
-        if (radeon_runtime_pm == -1 && !radeon_is_px())
-                return -EINVAL;
+        if (radeon_runtime_pm == -1 && !radeon_is_px()) {
+                pm_runtime_forbid(dev);
+                return -EBUSY;
+        }
 
         drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
         drm_kms_helper_poll_disable(drm_dev);
@@ -456,12 +460,15 @@ static int radeon_pmops_runtime_idle(struct device *dev)
         struct drm_device *drm_dev = pci_get_drvdata(pdev);
         struct drm_crtc *crtc;
 
-        if (radeon_runtime_pm == 0)
+        if (radeon_runtime_pm == 0) {
+                pm_runtime_forbid(dev);
                 return -EBUSY;
+        }
 
         /* are we PX enabled? */
         if (radeon_runtime_pm == -1 && !radeon_is_px()) {
                 DRM_DEBUG_DRIVER("failing to power off - not px\n");
+                pm_runtime_forbid(dev);
                 return -EBUSY;
         }