diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index c2ab1a2..aca886e 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -867,7 +867,7 @@
 
 	bo = tegra_fb_get_plane(crtc->primary->fb, 0);
 
-	spin_lock_irqsave(&dc->lock, flags);
+	spin_lock(&dc->lock);
 
 	/* check if new start address has been latched */
 	tegra_dc_writel(dc, WINDOW_A_SELECT, DC_CMD_DISPLAY_WINDOW_HEADER);
@@ -875,7 +875,7 @@
 	base = tegra_dc_readl(dc, DC_WINBUF_START_ADDR);
 	tegra_dc_writel(dc, 0, DC_CMD_STATE_ACCESS);
 
-	spin_unlock_irqrestore(&dc->lock, flags);
+	spin_unlock(&dc->lock);
 
 	if (base == bo->paddr + crtc->primary->fb->offsets[0]) {
 		drm_crtc_send_vblank_event(crtc, dc->event);