diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 1a52522..8746a9c 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1177,6 +1177,9 @@
 {
 	struct tegra_dc_state *state = to_dc_state(crtc_state);
 
+	if (!clk_has_parent(dc->clk, clk))
+		return -EINVAL;
+
 	state->clk = clk;
 	state->pclk = pclk;
 	state->div = div;