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authorMarc Zyngier <marc.zyngier@arm.com>2015-10-13 14:51:31 +0300
committerThomas Gleixner <tglx@linutronix.de>2015-10-13 20:01:23 +0300
commit130b8c6c8d86075304952241bf2365cea6489df1 (patch)
tree98a76e1430c7c9878c49bf056a680de8c3ff8420 /include/linux/irqdomain.h
parentf110711a6053f08731858aa91420104094188973 (diff)
downloadlinux-130b8c6c8d86075304952241bf2365cea6489df1.tar.xz
irqdomain: Allow irq domain lookup by fwnode
So far, our irq domains are still looked up by device node. Let's change this and allow a domain to be looked up using a fwnode_handle pointer. The existing interfaces are preserved with a couple of helpers. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@linaro.org> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Graeme Gregory <graeme@xora.org.uk> Cc: Jake Oshins <jakeo@microsoft.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1444737105-31573-4-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irqdomain.h')
-rw-r--r--include/linux/irqdomain.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 2f508f4ac2ea..607c1856cc01 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -183,10 +183,17 @@ struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
irq_hw_number_t first_hwirq,
const struct irq_domain_ops *ops,
void *host_data);
-extern struct irq_domain *irq_find_matching_host(struct device_node *node,
- enum irq_domain_bus_token bus_token);
+extern struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
+ enum irq_domain_bus_token bus_token);
extern void irq_set_default_host(struct irq_domain *host);
+static inline struct irq_domain *irq_find_matching_host(struct device_node *node,
+ enum irq_domain_bus_token bus_token)
+{
+ return irq_find_matching_fwnode(node ? &node->fwnode : NULL,
+ bus_token);
+}
+
static inline struct irq_domain *irq_find_host(struct device_node *node)
{
return irq_find_matching_host(node, DOMAIN_BUS_ANY);