From 1f43cfb9474d1c4f22598b6e3213ec035be6dd56 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Thu, 28 Jan 2010 13:47:25 -0700 Subject: of: merge machine_is_compatible() Merge common code between PowerPC and Microblaze Signed-off-by: Grant Likely Tested-by: Wolfram Sang Acked-by: Benjamin Herrenschmidt --- drivers/of/base.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers') diff --git a/drivers/of/base.c b/drivers/of/base.c index ec56739eb247..dba995b70b84 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -143,6 +143,27 @@ int of_device_is_compatible(const struct device_node *device, } EXPORT_SYMBOL(of_device_is_compatible); +/** + * machine_is_compatible - Test root of device tree for a given compatible value + * @compat: compatible string to look for in root node's compatible property. + * + * Returns true if the root node has the given value in its + * compatible property. + */ +int machine_is_compatible(const char *compat) +{ + struct device_node *root; + int rc = 0; + + root = of_find_node_by_path("/"); + if (root) { + rc = of_device_is_compatible(root, compat); + of_node_put(root); + } + return rc; +} +EXPORT_SYMBOL(machine_is_compatible); + /** * of_device_is_available - check if a device is available for use * -- cgit v1.2.3