diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2010-01-28 13:47:25 -0700 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-01-28 13:47:25 -0700 |
| commit | 1f43cfb9474d1c4f22598b6e3213ec035be6dd56 (patch) | |
| tree | 71b769e38856b591ec68d9bb593766bdc679c0c9 /drivers/of | |
| parent | 86e032213424958b45564d0cc96b3316641a49d3 (diff) | |
of: merge machine_is_compatible()
Merge common code between PowerPC and Microblaze
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/base.c | 21 |
1 files changed, 21 insertions, 0 deletions
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 @@ -144,6 +144,27 @@ 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 * * @device: Node to check for availability |