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-rw-r--r--drivers/gpu/drm/tidss/tidss_crtc.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tidss/tidss_crtc.c b/drivers/gpu/drm/tidss/tidss_crtc.c
index 5f838980c7a1..94f8e3178df5 100644
--- a/drivers/gpu/drm/tidss/tidss_crtc.c
+++ b/drivers/gpu/drm/tidss/tidss_crtc.c
@@ -265,6 +265,16 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
reinit_completion(&tcrtc->framedone_completion);
+ /*
+ * If a layer is left enabled when the videoport is disabled, and the
+ * vid pipeline that was used for the layer is taken into use on
+ * another videoport, the DSS will report sync lost issues. Disable all
+ * the layers here as a work-around.
+ */
+ for (u32 layer = 0; layer < tidss->feat->num_planes; layer++)
+ dispc_ovr_enable_layer(tidss->dispc, tcrtc->hw_videoport, layer,
+ false);
+
dispc_vp_disable(tidss->dispc, tcrtc->hw_videoport);
if (!wait_for_completion_timeout(&tcrtc->framedone_completion,