hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

sparc: Implement irq_of_parse_and_map() and irq_dispose_mapping(). 

This allows more OF layer code to be shared between powerpc and
sparc.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-20 16:34:39 -07:00
parent 2481d76615
commit 44266215e3
3 changed files with 30 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/sparc/include/asm/prom.h
View File

@ -96,6 +96,14 @@ static inline void of_node_put(struct device_node *node)
{
}
/* 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 of_device objects, whereas powerpc computes them
* on request.
*/
extern int irq_of_parse_and_map(struct device_node *node, int index);
#define irq_dispose_mapping(irq) do { } while (0)
/*
* NB: This is here while we transition from using asm/prom.h
* to linux/of.h

11
arch/sparc/kernel/of_device.c
View File

@ -29,6 +29,17 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
}
EXPORT_SYMBOL(of_find_device_by_node);
int irq_of_parse_and_map(struct device_node *node, int index)
{
struct of_device *op = of_find_device_by_node(node);
if (!op || index >= op->num_irqs)
return 0xffffffff;
return op->irqs[index];
}
EXPORT_SYMBOL(irq_of_parse_and_map);
#ifdef CONFIG_PCI
struct bus_type ebus_bus_type;
EXPORT_SYMBOL(ebus_bus_type);

11
arch/sparc64/kernel/of_device.c
View File

@ -55,6 +55,17 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
}
EXPORT_SYMBOL(of_find_device_by_node);
int irq_of_parse_and_map(struct device_node *node, int index)
{
struct of_device *op = of_find_device_by_node(node);
if (!op || index >= op->num_irqs)
return 0xffffffff;
return op->irqs[index];
}
EXPORT_SYMBOL(irq_of_parse_and_map);
#ifdef CONFIG_PCI
struct bus_type ebus_bus_type;
EXPORT_SYMBOL(ebus_bus_type);