From 0081cbc3731de8ad4744ba433af51f17bf27eb9c Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Tue, 1 May 2007 16:29:19 +1000 Subject: Consolidate of_device_is_compatible The only difference here is that Sparc uses strncmp to match compatibility names while PowerPC uses strncasecmp. Signed-off-by: Stephen Rothwell Acked-by: Paul Mackerras Acked-by: David S. Miller --- drivers/of/base.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/of') diff --git a/drivers/of/base.c b/drivers/of/base.c index 723d80d704e..d6dc5e74c27 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -63,3 +63,27 @@ const void *of_get_property(const struct device_node *np, const char *name, return pp ? pp->value : NULL; } EXPORT_SYMBOL(of_get_property); + +/** Checks if the given "compat" string matches one of the strings in + * the device's "compatible" property + */ +int of_device_is_compatible(const struct device_node *device, + const char *compat) +{ + const char* cp; + int cplen, l; + + cp = of_get_property(device, "compatible", &cplen); + if (cp == NULL) + return 0; + while (cplen > 0) { + if (of_compat_cmp(cp, compat, strlen(compat)) == 0) + return 1; + l = strlen(cp) + 1; + cp += l; + cplen -= l; + } + + return 0; +} +EXPORT_SYMBOL(of_device_is_compatible); -- cgit v1.2.3