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-rw-r--r--kernel/irq/Kconfig3
-rw-r--r--kernel/irq/chip.c27
-rw-r--r--kernel/irq/irqdomain.c2
3 files changed, 31 insertions, 1 deletions
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 5f3e2baefca9..8fee06625c37 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -91,6 +91,9 @@ config GENERIC_MSI_IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
select GENERIC_MSI_IRQ
+config IRQ_MSI_IOMMU
+ bool
+
config HANDLE_DOMAIN_IRQ
bool
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 51128bea3846..29d6c7d070b4 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -1459,6 +1459,33 @@ int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on)
return -ENOSYS;
}
EXPORT_SYMBOL_GPL(irq_chip_set_wake_parent);
+
+/**
+ * irq_chip_request_resources_parent - Request resources on the parent interrupt
+ * @data: Pointer to interrupt specific data
+ */
+int irq_chip_request_resources_parent(struct irq_data *data)
+{
+ data = data->parent_data;
+
+ if (data->chip->irq_request_resources)
+ return data->chip->irq_request_resources(data);
+
+ return -ENOSYS;
+}
+EXPORT_SYMBOL_GPL(irq_chip_request_resources_parent);
+
+/**
+ * irq_chip_release_resources_parent - Release resources on the parent interrupt
+ * @data: Pointer to interrupt specific data
+ */
+void irq_chip_release_resources_parent(struct irq_data *data)
+{
+ data = data->parent_data;
+ if (data->chip->irq_release_resources)
+ data->chip->irq_release_resources(data);
+}
+EXPORT_SYMBOL_GPL(irq_chip_release_resources_parent);
#endif
/**
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 9ed29e4a7dbf..a453e229f99c 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1297,7 +1297,7 @@ int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain,
/**
* __irq_domain_alloc_irqs - Allocate IRQs from domain
* @domain: domain to allocate from
- * @irq_base: allocate specified IRQ nubmer if irq_base >= 0
+ * @irq_base: allocate specified IRQ number if irq_base >= 0
* @nr_irqs: number of IRQs to allocate
* @node: NUMA node id for memory allocation
* @arg: domain specific argument