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irqdomain: Introduce is_fwnode_irqchip helper 

Since there will be several places checking if fwnode.type
is equal FWNODE_IRQCHIP, this patch adds a convenient function
for this purpose.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Suravee Suthikulpanit 2015-12-10 08:55:28 -08:00 committed by Marc Zyngier
parent 471036b2b8
commit 75aba7b0e9
3 changed files with 7 additions and 2 deletions
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2
drivers/irqchip/irq-gic.c
View File

@ -972,7 +972,7 @@ static int gic_irq_domain_translate(struct irq_domain *d,
return 0;
}
if (fwspec->fwnode->type == FWNODE_IRQCHIP) {
if (is_fwnode_irqchip(fwspec->fwnode)) {
if(fwspec->param_count != 2)
return -EINVAL;

5
include/linux/irqdomain.h
View File

@ -211,6 +211,11 @@ static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node)
return node ? &node->fwnode : NULL;
}
static inline bool is_fwnode_irqchip(struct fwnode_handle *fwnode)
{
return fwnode && fwnode->type == FWNODE_IRQCHIP;
}
static inline struct irq_domain *irq_find_matching_host(struct device_node *node,
enum irq_domain_bus_token bus_token)
{

2
kernel/irq/irqdomain.c
View File

@ -70,7 +70,7 @@ void irq_domain_free_fwnode(struct fwnode_handle *fwnode)
{
struct irqchip_fwid *fwid;
if (WARN_ON(fwnode->type != FWNODE_IRQCHIP))
if (WARN_ON(!is_fwnode_irqchip(fwnode)))
return;
fwid = container_of(fwnode, struct irqchip_fwid, fwnode);