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path: root/drivers/gpu/drm/drm_crtc_helper.c
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Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
-rw-r--r--drivers/gpu/drm/drm_crtc_helper.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index bf10d7046aa6..d61591274ff6 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -232,6 +232,9 @@ static void __drm_helper_disable_unused_functions(struct drm_device *dev)
*/
void drm_helper_disable_unused_functions(struct drm_device *dev)
{
+ if (drm_core_check_feature(dev, DRIVER_ATOMIC))
+ DRM_ERROR("Called for atomic driver, this is not what you want.\n");
+
drm_modeset_lock_all(dev);
__drm_helper_disable_unused_functions(dev);
drm_modeset_unlock_all(dev);