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of/flattree: Add of_flat_dt_match() helper function

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This patch adds of_flat_dt_match() which tests a node for
compatibility with a list of values and converts the relevant powerpc
platform code to use it.  This approach simplifies the board support
code a bit.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
This commit is contained in:
Grant Likely 2010-10-30 11:49:09 -04:00
parent 73930a85cf
commit a4f740cf33
11 changed files with 89 additions and 78 deletions
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3
include/linux/of_fdt.h
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@ -68,6 +68,8 @@ extern void *of_fdt_get_property(struct boot_param_header *blob,
extern int of_fdt_is_compatible(struct boot_param_header *blob,
unsigned long node,
const char *compat);
extern int of_fdt_match(struct boot_param_header *blob, unsigned long node,
const char **compat);
extern void of_fdt_unflatten_tree(unsigned long *blob,
struct device_node **mynodes);
@ -84,6 +86,7 @@ extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
extern void *of_get_flat_dt_prop(unsigned long node, const char *name,
unsigned long *size);
extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
extern int of_flat_dt_match(unsigned long node, const char **matches);
extern unsigned long of_get_flat_dt_root(void);
extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,