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sparc: Implement of_address_to_resource(). 

Similarly to irq_of_parse_and_map(), find the platform_device
object and return the pre-computed resource.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-03-18 15:31:19 -07:00
parent 1655068029
commit 930952af15
1 changed files with 13 additions and 0 deletions
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13
arch/sparc/kernel/of_device_common.c
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@ -22,6 +22,19 @@ unsigned int irq_of_parse_and_map(struct device_node *node, int index)
}
EXPORT_SYMBOL(irq_of_parse_and_map);
int of_address_to_resource(struct device_node *node, int index,
struct resource *r)
{
struct platform_device *op = of_find_device_by_node(node);
if (!op || index >= op->num_resources)
return -EINVAL;
memcpy(r, &op->archdata.resource[index], sizeof(*r));
return 0;
}
EXPORT_SYMBOL_GPL(of_address_to_resource);
/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
* BUS and propagate to all child platform_device objects.
*/