summaryrefslogtreecommitdiffstats
path: root/Documentation/hwspinlock.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/hwspinlock.txt')
-rw-r--r--Documentation/hwspinlock.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/hwspinlock.txt b/Documentation/hwspinlock.txt
index 62f7d4ea6e26..61c1ee98e59f 100644
--- a/Documentation/hwspinlock.txt
+++ b/Documentation/hwspinlock.txt
@@ -48,6 +48,16 @@ independent, drivers.
ids for predefined purposes.
Should be called from a process context (might sleep).
+ int of_hwspin_lock_get_id(struct device_node *np, int index);
+ - retrieve the global lock id for an OF phandle-based specific lock.
+ This function provides a means for DT users of a hwspinlock module
+ to get the global lock id of a specific hwspinlock, so that it can
+ be requested using the normal hwspin_lock_request_specific() API.
+ The function returns a lock id number on success, -EPROBE_DEFER if
+ the hwspinlock device is not yet registered with the core, or other
+ error values.
+ Should be called from a process context (might sleep).
+
int hwspin_lock_free(struct hwspinlock *hwlock);
- free a previously-assigned hwspinlock; returns 0 on success, or an
appropriate error code on failure (e.g. -EINVAL if the hwspinlock