diff options
| author | Marc Gonzalez <marc_gonzalez@sigmadesigns.com> | 2017-09-26 12:22:54 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-10-05 15:52:34 -0500 |
| commit | a060c2104ef83e62346b7e893947a940471c0d7c (patch) | |
| tree | c029535eda482d732c3295188545691db805909c | |
| parent | 9e66317d3c92ddaab330c125dfe9d06eee268aff (diff) | |
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>
| -rw-r--r-- | drivers/of/address.c | 19 | ||||
| -rw-r--r-- | include/linux/of_address.h | 10 |
2 files changed, 25 insertions, 4 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c index 792722e7d458..fa6cabfc3cb9 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -232,8 +232,8 @@ int of_pci_address_to_resource(struct device_node *dev, int bar, } 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 @@ int of_pci_range_parser_init(struct of_pci_range_parser *parser, 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 @@ int of_pci_range_parser_init(struct of_pci_range_parser *parser, 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) { diff --git a/include/linux/of_address.h b/include/linux/of_address.h index 37864734ca50..8beed2de98e9 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -49,6 +49,8 @@ extern const __be32 *of_get_address(struct device_node *dev, int index, extern int of_pci_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node); +extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser, + struct device_node *node); extern struct of_pci_range *of_pci_range_parser_one( struct of_pci_range_parser *parser, struct of_pci_range *range); @@ -85,7 +87,13 @@ static inline const __be32 *of_get_address(struct device_node *dev, int index, static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node) { - return -1; + return -ENOSYS; +} + +static inline int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser, + struct device_node *node) +{ + return -ENOSYS; } static inline struct of_pci_range *of_pci_range_parser_one( |