From patchwork Fri Mar 18 22:32:48 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: sparc: Implement of_address_to_resource(). Date: Fri, 18 Mar 2011 12:32:48 -0000 From: David Miller X-Patchwork-Id: 87583 Message-Id: <20110318.153248.214207483.davem@davemloft.net> To: sparclinux@vger.kernel.org Similarly to irq_of_parse_and_map(), find the platform_device object and return the pre-computed resource. Signed-off-by: David S. Miller --- 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 49ddff5..0ed0321 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. */