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irqdomain: Convert irqdomain-%3Eof_node to fwnode

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Now that we have everyone accessing the of_node field via the
irq_domain_get_of_node accessor, it is pretty easy to swap it
for a pointer to a fwnode_handle.

This translates into a few limited changes in __irq_domain_add,
and an updated irq_domain_get_of_node.

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/1444737105-31573-3-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Marc Zyngier 2015-10-13 12:51:30 +01:00 committed by Thomas Gleixner
parent 5d4c9bc776
commit f110711a60
2 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/irqdomain.h
View File

@ -34,6 +34,7 @@
#include <linux/types.h>
#include <linux/irqhandler.h>
#include <linux/of.h>
#include <linux/radix-tree.h>
struct device_node;
@ -130,7 +131,7 @@ struct irq_domain {
unsigned int flags;
/* Optional data */
struct device_node *of_node;
struct fwnode_handle *fwnode;
enum irq_domain_bus_token bus_token;
struct irq_domain_chip_generic *gc;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
@ -163,7 +164,7 @@ enum {
static inline struct device_node *irq_domain_get_of_node(struct irq_domain *d)
{
return d->of_node;
return to_of_node(d->fwnode);
}
#ifdef CONFIG_IRQ_DOMAIN

6
kernel/irq/irqdomain.c
View File

@ -46,17 +46,21 @@ struct irq_domain *__irq_domain_add(struct device_node *of_node, int size,
void *host_data)
{
struct irq_domain *domain;
struct fwnode_handle *fwnode;
domain = kzalloc_node(sizeof(*domain) + (sizeof(unsigned int) * size),
GFP_KERNEL, of_node_to_nid(of_node));
if (WARN_ON(!domain))
return NULL;
of_node_get(of_node);
fwnode = of_node ? &of_node->fwnode : NULL;
/* Fill structure */
INIT_RADIX_TREE(&domain->revmap_tree, GFP_KERNEL);
domain->ops = ops;
domain->host_data = host_data;
domain->of_node = of_node_get(of_node);
domain->fwnode = fwnode;
domain->hwirq_max = hwirq_max;
domain->revmap_size = size;
domain->revmap_direct_max_irq = direct_max;