diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index d7fe9f15def1dbf426b4f23bb7fe46cfa64248af..89cb70da2bfe6456dbf3f9befdc6e92e9923b555 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -2922,6 +2922,11 @@ static int tegra_sor_parse_dt(struct tegra_sor *sor)
 		 * earlier
 		 */
 		sor->pad = TEGRA_IO_PAD_HDMI_DP0 + sor->index;
+	} else {
+		if (sor->soc->supports_edp)
+			sor->index = 0;
+		else
+			sor->index = 1;
 	}
 
 	return 0;