2 files changed, 20 insertions, 4 deletions

diff --git a/include/linux/irq.h b/include/linux/irq.h
index ff62d0145b8f..1d3577f30d45 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -330,10 +330,12 @@ struct irq_chip {
  *
  * IRQCHIP_SET_TYPE_MASKED:     Mask before calling chip.irq_set_type()
  * IRQCHIP_EOI_IF_HANDLED:      Only issue irq_eoi() when irq was handled
+ * IRQCHIP_MASK_ON_SUSPEND:     Mask non wake irqs in the suspend path
  */
 enum {
         IRQCHIP_SET_TYPE_MASKED         = (1 <<  0),
         IRQCHIP_EOI_IF_HANDLED          = (1 <<  1),
+        IRQCHIP_MASK_ON_SUSPEND         = (1 <<  2),
 };
 
 /* This include will go away once we isolated irq_desc usage to core code */
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index 1329f0eff49e..f76fc00c9877 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -68,10 +68,24 @@ int check_wakeup_irqs(void)
         struct irq_desc *desc;
         int irq;
 
-        for_each_irq_desc(irq, desc)
-                if (irqd_is_wakeup_set(&desc->irq_data) &&
-                    (desc->istate & IRQS_PENDING))
-                        return -EBUSY;
+        for_each_irq_desc(irq, desc) {
+                if (irqd_is_wakeup_set(&desc->irq_data)) {
+                        if (desc->istate & IRQS_PENDING)
+                                return -EBUSY;
+                        continue;
+                }
+                /*
+                 * Check the non wakeup interrupts whether they need
+                 * to be masked before finally going into suspend
+                 * state. That's for hardware which has no wakeup
+                 * source configuration facility. The chip
+                 * implementation indicates that with
+                 * IRQCHIP_MASK_ON_SUSPEND.
+                 */
+                if (desc->istate & IRQS_SUSPENDED &&
+                    irq_desc_get_chip(desc)->flags & IRQCHIP_MASK_ON_SUSPEND)
+                        mask_irq(desc);
+        }
 
         return 0;
 }