Prevent runtime suspend of non-PX GPUs. Runtime suspend is
not what we want in those cases.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Cc: stable at vger.kernel.org
---
drivers/gpu/drm/radeon/radeon_drv.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c
b/drivers/gpu/drm/radeon/radeon_drv.c
index 1235a78f..ec8c388 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -405,6 +405,9 @@ static int radeon_pmops_runtime_suspend(struct device *dev)
if (radeon_runtime_pm == 0)
return -EINVAL;
+ if (radeon_runtime_pm == -1 && !radeon_is_px())
+ return -EINVAL;
+
drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
drm_kms_helper_poll_disable(drm_dev);
vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
@@ -427,6 +430,9 @@ static int radeon_pmops_runtime_resume(struct device *dev)
if (radeon_runtime_pm == 0)
return -EINVAL;
+ if (radeon_runtime_pm == -1 && !radeon_is_px())
+ return -EINVAL;
+
drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
pci_set_power_state(pdev, PCI_D0);
--
1.8.3.1
