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-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
index 52e8ec3b2357..afc0bc4ef4e1 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
@@ -421,6 +421,7 @@ static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
{
struct vmw_private *dev_priv;
struct vmw_screen_target_display_unit *stdu;
+ struct drm_crtc_state *new_crtc_state;
int ret;
if (!crtc) {
@@ -430,6 +431,7 @@ static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
stdu = vmw_crtc_to_stdu(crtc);
dev_priv = vmw_priv(crtc->dev);
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
if (dev_priv->vkms_enabled)
drm_crtc_vblank_off(crtc);
@@ -441,6 +443,14 @@ static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
(void) vmw_stdu_update_st(dev_priv, stdu);
+ /* Don't destroy the Screen Target if we are only setting the
+ * display as inactive
+ */
+ if (new_crtc_state->enable &&
+ !new_crtc_state->active &&
+ !new_crtc_state->mode_changed)
+ return;
+
ret = vmw_stdu_destroy_st(dev_priv, stdu);
if (ret)
DRM_ERROR("Failed to destroy Screen Target\n");