diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 6aeedeacdad..f5c7ef95594 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -245,6 +245,8 @@ static int omap2_can_sleep(void)
 {
 	if (omap2_fclks_active())
 		return 0;
+	if (!omap_uart_can_sleep())
+		return 0;
 	if (osc_ck->usecount > 1)
 		return 0;
 	if (omap_dma_running())