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authorGrant Likely <grant.likely@secretlab.ca>2010-06-18 11:09:59 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-06-28 12:41:33 -0700
commite3873444990dd6f8a095d1f72b5ad45192f8c506 (patch)
tree9e9fbc43fd4ffde3ac7d41827e0ab9c5f98363f0 /arch/microblaze
parentb505ff5e7291cca6379549297e3852ce3622d550 (diff)
downloadop-kernel-dev-e3873444990dd6f8a095d1f72b5ad45192f8c506.zip
op-kernel-dev-e3873444990dd6f8a095d1f72b5ad45192f8c506.tar.gz
of/irq: Move irq_of_parse_and_map() to common code
Merge common code between PowerPC and Microblaze. SPARC implements irq_of_parse_and_map(), but the implementation is different, so it does not use this code. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michal Simek <monstr@monstr.eu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Jeremy Kerr <jeremy.kerr@canonical.com>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/include/asm/irq.h24
-rw-r--r--arch/microblaze/include/asm/prom.h26
-rw-r--r--arch/microblaze/kernel/irq.c14
3 files changed, 3 insertions, 61 deletions
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
index 31a35c3..ec5583d 100644
--- a/arch/microblaze/include/asm/irq.h
+++ b/arch/microblaze/include/asm/irq.h
@@ -27,17 +27,6 @@ extern unsigned int nr_irq;
struct pt_regs;
extern void do_IRQ(struct pt_regs *regs);
-/**
- * irq_of_parse_and_map - Parse and Map an interrupt into linux virq space
- * @device: Device node of the device whose interrupt is to be mapped
- * @index: Index of the interrupt to map
- *
- * This function is a wrapper that chains of_irq_map_one() and
- * irq_create_of_mapping() to make things easier to callers
- */
-struct device_node;
-extern unsigned int irq_of_parse_and_map(struct device_node *dev, int index);
-
/** FIXME - not implement
* irq_dispose_mapping - Unmap an interrupt
* @virq: linux virq number of the interrupt to unmap
@@ -62,17 +51,4 @@ struct irq_host;
extern unsigned int irq_create_mapping(struct irq_host *host,
irq_hw_number_t hwirq);
-/**
- * irq_create_of_mapping - Map a hardware interrupt into linux virq space
- * @controller: Device node of the interrupt controller
- * @inspec: Interrupt specifier from the device-tree
- * @intsize: Size of the interrupt specifier from the device-tree
- *
- * This function is identical to irq_create_mapping except that it takes
- * as input informations straight from the device-tree (typically the results
- * of the of_irq_map_*() functions.
- */
-extern unsigned int irq_create_of_mapping(struct device_node *controller,
- u32 *intspec, unsigned int intsize);
-
#endif /* _ASM_MICROBLAZE_IRQ_H */
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index e7d67a3..e9fb2eb 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -20,6 +20,7 @@
#ifndef __ASSEMBLY__
#include <linux/types.h>
+#include <linux/of_irq.h>
#include <linux/of_fdt.h>
#include <linux/proc_fs.h>
#include <linux/platform_device.h>
@@ -92,18 +93,6 @@ extern const void *of_get_mac_address(struct device_node *np);
* OF interrupt mapping
*/
-/* This structure is returned when an interrupt is mapped. The controller
- * field needs to be put() after use
- */
-
-#define OF_MAX_IRQ_SPEC 4 /* We handle specifiers of at most 4 cells */
-
-struct of_irq {
- struct device_node *controller; /* Interrupt controller node */
- u32 size; /* Specifier size */
- u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
-};
-
/**
* of_irq_map_init - Initialize the irq remapper
* @flags: flags defining workarounds to enable
@@ -139,19 +128,6 @@ extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
struct of_irq *out_irq);
/**
- * of_irq_map_one - Resolve an interrupt for a device
- * @device: the device whose interrupt is to be resolved
- * @index: index of the interrupt to resolve
- * @out_irq: structure of_irq filled by this function
- *
- * This function resolves an interrupt, walking the tree, for a given
- * device-tree node. It's the high level pendant to of_irq_map_raw().
- * It also implements the workarounds for OldWolrd Macs.
- */
-extern int of_irq_map_one(struct device_node *device, int index,
- struct of_irq *out_irq);
-
-/**
* of_irq_map_pci - Resolve the interrupt for a PCI device
* @pdev: the device whose interrupt is to be resolved
* @out_irq: structure of_irq filled by this function
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
index 8f120ac..dd32b09 100644
--- a/arch/microblaze/kernel/irq.c
+++ b/arch/microblaze/kernel/irq.c
@@ -17,20 +17,10 @@
#include <linux/seq_file.h>
#include <linux/kernel_stat.h>
#include <linux/irq.h>
+#include <linux/of_irq.h>
#include <asm/prom.h>
-unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
-{
- struct of_irq oirq;
-
- if (of_irq_map_one(dev, index, &oirq))
- return NO_IRQ;
-
- return oirq.specifier[0];
-}
-EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
-
static u32 concurrent_irq;
void __irq_entry do_IRQ(struct pt_regs *regs)
@@ -104,7 +94,7 @@ unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq)
EXPORT_SYMBOL_GPL(irq_create_mapping);
unsigned int irq_create_of_mapping(struct device_node *controller,
- u32 *intspec, unsigned int intsize)
+ const u32 *intspec, unsigned int intsize)
{
return intspec[0];
}
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