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| author | David S. Miller <davem@davemloft.net> | 2011-03-18 15:31:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-18 15:31:19 -0700 |
| commit | 930952af15f8425115528447102ed97610e98949 (patch) | |
| tree | 00b89f25d523540e121b0d0bb479da8dc869e411 /arch/sparc | |
| parent | 1655068029a6e86682fe97a687db9db0aae5af81 (diff) | |
| download | linux-3.10-930952af15f8425115528447102ed97610e98949.tar.gz linux-3.10-930952af15f8425115528447102ed97610e98949.tar.bz2 linux-3.10-930952af15f8425115528447102ed97610e98949.zip | |
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>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/of_device_common.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c index 49ddff56cb0..0ed0321d84e 100644 --- a/arch/sparc/kernel/of_device_common.c +++ b/arch/sparc/kernel/of_device_common.c @@ -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. */ |