diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 0d3cbb1bab5e..3f1cf4bc7636 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -1919,8 +1919,6 @@ static int rockchip_drm_bind(struct device *dev)
 
 	drm_dev->dev_private = private;
 
-	mutex_init(&private->commit_lock);
-
 	private->hdmi_pll.pll = devm_clk_get_optional(dev, "hdmi-tmds-pll");
 	if (PTR_ERR(private->hdmi_pll.pll) == -EPROBE_DEFER) {
 		ret = -EPROBE_DEFER;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
index d20ebb7e6c6a..6a1e131b3f42 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
@@ -561,7 +561,6 @@ struct rockchip_drm_private {
 	struct gen_pool *secure_buffer_pool;
 	struct mutex mm_lock;
 	struct drm_mm mm;
-	struct mutex commit_lock;
 
 	/* private crtc prop */
 	struct drm_property *soc_id_prop;