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of/flattree: Merge of_flat_dt_is_compatible

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Merge common code between PowerPC and Microblaze

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Grant Likely
2009-11-23 20:07:00 -07:00
parent ca900cfa29
commit 00e38efd90
3 changed files with 24 additions and 38 deletions
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24
drivers/of/fdt.c
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@@ -142,3 +142,27 @@ void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
} while (1);
}
/**
* of_flat_dt_is_compatible - Return true if given node has compat in compatible list
* @node: node to test
* @compat: compatible string to compare with compatible list.
*/
int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
{
const char *cp;
unsigned long cplen, l;
cp = of_get_flat_dt_prop(node, "compatible", &cplen);
if (cp == NULL)
return 0;
while (cplen > 0) {
if (strncasecmp(cp, compat, strlen(compat)) == 0)
return 1;
l = strlen(cp) + 1;
cp += l;
cplen -= l;
}
return 0;
}