diff options
| author | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2008-03-27 00:33:14 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-04-07 13:49:23 +1000 |
| commit | 834d97d452208279edf11c57eca150360d2dd1d6 (patch) | |
| tree | 9e5de1e017165c6d20a154313c8b97f315b8c59a /include | |
| parent | 6ccf61f94fbac3e8715f2f938b27cdb3836c1f8c (diff) | |
[POWERPC] Add of_device_is_available function
IEEE 1275 defined a standard "status" property to indicate the operational
status of a device. The property has four possible values: okay, disabled,
fail, fail-xxx. The absence of this property means the operational status
of the device is unknown or okay.
This adds a function called of_device_is_available that checks the state
of the status property of a device. If the property is absent or set to
either "okay" or "ok", it returns 1. Otherwise it returns 0.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/of.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index 6981016dcc25..59a61bdc98b6 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -62,6 +62,7 @@ extern struct property *of_find_property(const struct device_node *np, int *lenp); extern int of_device_is_compatible(const struct device_node *device, const char *); +extern int of_device_is_available(const struct device_node *device); extern const void *of_get_property(const struct device_node *node, const char *name, int *lenp); |