of/pci: Add of_pci_dma_range_parser_init() for dma-ranges parsing support
Several host bridge drivers duplicate of_pci_range_parser_init() in order
to parse their dma-ranges property.
Provide of_pci_dma_range_parser_init() for that use case.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 792722e..fa6cabf 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -232,8 +232,8 @@
}
EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
-int of_pci_range_parser_init(struct of_pci_range_parser *parser,
- struct device_node *node)
+static int parser_init(struct of_pci_range_parser *parser,
+ struct device_node *node, const char *name)
{
const int na = 3, ns = 2;
int rlen;
@@ -242,7 +242,7 @@
parser->pna = of_n_addr_cells(node);
parser->np = parser->pna + na + ns;
- parser->range = of_get_property(node, "ranges", &rlen);
+ parser->range = of_get_property(node, name, &rlen);
if (parser->range == NULL)
return -ENOENT;
@@ -250,8 +250,21 @@
return 0;
}
+
+int of_pci_range_parser_init(struct of_pci_range_parser *parser,
+ struct device_node *node)
+{
+ return parser_init(parser, node, "ranges");
+}
EXPORT_SYMBOL_GPL(of_pci_range_parser_init);
+int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
+ struct device_node *node)
+{
+ return parser_init(parser, node, "dma-ranges");
+}
+EXPORT_SYMBOL_GPL(of_pci_dma_range_parser_init);
+
struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
struct of_pci_range *range)
{