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| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-10-13 12:51:31 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-10-13 19:01:23 +0200 |
| commit | 130b8c6c8d86075304952241bf2365cea6489df1 (patch) | |
| tree | 98a76e1430c7c9878c49bf056a680de8c3ff8420 /kernel/irq/irqdomain.c | |
| parent | f110711a6053f08731858aa91420104094188973 (diff) | |
| download | linux-130b8c6c8d86075304952241bf2365cea6489df1.tar.gz linux-130b8c6c8d86075304952241bf2365cea6489df1.tar.bz2 linux-130b8c6c8d86075304952241bf2365cea6489df1.zip | |
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 'kernel/irq/irqdomain.c')
| -rw-r--r-- | kernel/irq/irqdomain.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index 1aee5c118bae..023ab6d488f7 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -191,12 +191,12 @@ struct irq_domain *irq_domain_add_legacy(struct device_node *of_node, EXPORT_SYMBOL_GPL(irq_domain_add_legacy); /** - * irq_find_matching_host() - Locates a domain for a given device node - * @node: device-tree node of the interrupt controller + * irq_find_matching_fwnode() - Locates a domain for a given fwnode + * @fwnode: FW descriptor of the interrupt controller * @bus_token: domain-specific data */ -struct irq_domain *irq_find_matching_host(struct device_node *node, - enum irq_domain_bus_token bus_token) +struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode, + enum irq_domain_bus_token bus_token) { struct irq_domain *h, *found = NULL; int rc; @@ -212,12 +212,10 @@ struct irq_domain *irq_find_matching_host(struct device_node *node, */ mutex_lock(&irq_domain_mutex); list_for_each_entry(h, &irq_domain_list, link) { - struct device_node *of_node; - of_node = irq_domain_get_of_node(h); if (h->ops->match) - rc = h->ops->match(h, node, bus_token); + rc = h->ops->match(h, to_of_node(fwnode), bus_token); else - rc = ((of_node != NULL) && (of_node == node) && + rc = ((fwnode != NULL) && (h->fwnode == fwnode) && ((bus_token == DOMAIN_BUS_ANY) || (h->bus_token == bus_token))); @@ -229,7 +227,7 @@ struct irq_domain *irq_find_matching_host(struct device_node *node, mutex_unlock(&irq_domain_mutex); return found; } -EXPORT_SYMBOL_GPL(irq_find_matching_host); +EXPORT_SYMBOL_GPL(irq_find_matching_fwnode); /** * irq_set_default_host() - Set a "default" irq domain |