X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fkernel%2Firq%2Fchip.c;h=94bbd8fee90daa4aea9b7504efa2ce1ba05f291a;hb=fdb8b20906f3546ba6c2f9f0686d8a5189516ba3;hp=eb9a4ea394ab33fdde25420f11cb9021df384824;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/kernel/kernel/irq/chip.c b/kernel/kernel/irq/chip.c
index eb9a4ea39..94bbd8fee 100644
--- a/kernel/kernel/irq/chip.c
+++ b/kernel/kernel/irq/chip.c
@@ -933,6 +933,23 @@ int irq_chip_set_affinity_parent(struct irq_data *data,
 	return -ENOSYS;
 }
 
+/**
+ * irq_chip_set_type_parent - Set IRQ type on the parent interrupt
+ * @data:	Pointer to interrupt specific data
+ * @type:	IRQ_TYPE_{LEVEL,EDGE}_* value - see include/linux/irq.h
+ *
+ * Conditional, as the underlying parent chip might not implement it.
+ */
+int irq_chip_set_type_parent(struct irq_data *data, unsigned int type)
+{
+	data = data->parent_data;
+
+	if (data->chip->irq_set_type)
+		return data->chip->irq_set_type(data, type);
+
+	return -ENOSYS;
+}
+
 /**
  * irq_chip_retrigger_hierarchy - Retrigger an interrupt in hardware
  * @data:	Pointer to interrupt specific data
@@ -946,7 +963,7 @@ int irq_chip_retrigger_hierarchy(struct irq_data *data)
 		if (data->chip && data->chip->irq_retrigger)
 			return data->chip->irq_retrigger(data);
 
-	return -ENOSYS;
+	return 0;
 }
 
 /**