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-rw-r--r--drivers/gpu/drm/armada/armada_crtc.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index e81e57823b66..d802a6bc2d9f 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -180,6 +180,13 @@ static bool armada_drm_crtc_mode_fixup(struct drm_crtc *crtc,
adj->flags & DRM_MODE_FLAG_INTERLACE)
return false;
+ /*
+ * Set CRTC modesetting parameters for the adjusted mode. This is
+ * applied after the connectors, bridges, and encoders have fixed up
+ * this mode, as described above drm_atomic_helper_check_modeset().
+ */
+ drm_mode_set_crtcinfo(adj, CRTC_INTERLACE_HALVE_V);
+
/* Check whether the display mode is possible */
ret = dcrtc->variant->compute_clock(dcrtc, adj, NULL);
if (ret)