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Commit 930952af authored by David S. Miller's avatar David S. Miller
Browse files

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: default avatarDavid S. Miller <davem@davemloft.net>
parent 16550680

arch/sparc/kernel/of_device_common.c

+13 −0
Original line number Diff line number Diff line
@@ -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.

 */