drm: update crtc x/y when only fb changes

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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 ff447f175a56..fe8697447f32 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -869,6 +869,9 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
                 }
                 drm_helper_disable_unused_functions(dev);
         } else if (fb_changed) {
+                set->crtc->x = set->x;
+                set->crtc->y = set->y;
+
                 old_fb = set->crtc->fb;
                 if (set->crtc->fb != set->fb)
                         set->crtc->fb = set->fb;