diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 8ad0d773dc33..3feab563e50a 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -81,6 +81,7 @@ static int cdn_dp_grf_write(struct cdn_dp_device *dp,
 	ret = regmap_write(dp->grf, reg, val);
 	if (ret) {
 		DRM_DEV_ERROR(dp->dev, "Could not write to GRF: %d\n", ret);
+		clk_disable_unprepare(dp->grf_clk);
 		return ret;
 	}