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authorMark Brown <broonie@kernel.org>2017-12-13 16:46:37 +0000
committerMark Brown <broonie@kernel.org>2017-12-13 16:46:37 +0000
commit4045559c099998642e35d1444251c3bf042c7a4f (patch)
tree6a5cf332ae8f37382c8f31acf9a66a8a6fa78114 /include/linux
parentregmap: Remove the redundant config to select hwspinlock (diff)
parentregmap: Disable debugfs when locking is disabled (diff)
Merge branches 'topic/hwspinlock' and 'topic/nolock' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into regmap-const
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/regmap.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 15eddc1353ba..072a90229e34 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -264,6 +264,9 @@ typedef void (*regmap_unlock)(void *);
* field is NULL but precious_table (see below) is not, the
* check is performed on such table (a register is precious if
* it belongs to one of the ranges specified by precious_table).
+ * @disable_locking: This regmap is either protected by external means or
+ * is guaranteed not be be accessed from multiple threads.
+ * Don't use any locking mechanisms.
* @lock: Optional lock callback (overrides regmap's default lock
* function, based on spinlock or mutex).
* @unlock: As above for unlocking.
@@ -333,6 +336,8 @@ struct regmap_config {
bool (*readable_reg)(struct device *dev, unsigned int reg);
bool (*volatile_reg)(struct device *dev, unsigned int reg);
bool (*precious_reg)(struct device *dev, unsigned int reg);
+
+ bool disable_locking;
regmap_lock lock;
regmap_unlock unlock;
void *lock_arg;