irq_domain: Centralize definition of irq_dispose_mapping()

Several architectures define their own empty irq_dispose_mapping().  Since
the irq_domain code is centralized now, there is little need to do so.  This
patch removes them and creates a new empty copy when !CONFIG_IRQ_DOMAIN is
selected.

The patch also means that IRQ_DOMAIN becomes selectable on all architectures.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: sparclinux@vger.kernel.org
Cc: linux@lists.openrisc.net

1 files changed, 1 insertions, 9 deletions

diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index edd3d3cde460..c28765110706 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -22,6 +22,7 @@
 #include <linux/proc_fs.h>
 #include <linux/mutex.h>
 #include <linux/atomic.h>
+#include <linux/irqdomain.h>
 
 #define OF_ROOT_NODE_ADDR_CELLS_DEFAULT	2
 #define OF_ROOT_NODE_SIZE_CELLS_DEFAULT	1
@@ -55,15 +56,6 @@ struct resource;
 extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
 extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);
 
-/* These routines are here to provide compatibility with how powerpc
- * handles IRQ mapping for OF device nodes.  We precompute and permanently
- * register them in the platform_device objects, whereas powerpc computes them
- * on request.
- */
-static inline void irq_dispose_mapping(unsigned int virq)
-{
-}
-
 extern struct device_node *of_console_device;
 extern char *of_console_path;
 extern char *of_console_options;