diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index eaa7edb080fa..40d52f6f073c 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -500,8 +500,8 @@ static int tc_pllupdate(struct tc_data *tc, unsigned int pllctrl)
 	if (ret)
 		return ret;
 
-	/* Wait for PLL to lock: up to 2.09 ms, depending on refclk */
-	usleep_range(3000, 6000);
+	/* Wait for PLL to lock: up to 7.5 ms, depending on refclk */
+	usleep_range(15000, 20000);
 
 	return 0;
 }