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of: add of_parse_phandle() helper for parsing phandle properties

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of_parse_phandle() is a helper function to read and parse a phandle
property and return a pointer to the resulting device_node.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grant Likely
2009-04-25 12:52:40 +00:00
committed by David S. Miller
parent edf391ff17
commit 739649c53d
2 changed files with 27 additions and 0 deletions
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3
include/linux/of.h
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@@ -77,6 +77,9 @@ extern int of_n_size_cells(struct device_node *np);
extern const struct of_device_id *of_match_node(
const struct of_device_id *matches, const struct device_node *node);
extern int of_modalias_node(struct device_node *node, char *modalias, int len);
extern struct device_node *of_parse_phandle(struct device_node *np,
const char *phandle_name,
int index);
extern int of_parse_phandles_with_args(struct device_node *np,
const char *list_name, const char *cells_name, int index,
struct device_node **out_node, const void **out_args);