drivers: power: report battery voltage in AOSP compatible format

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / rwsem.c

diff --git a/kernel/rwsem.c b/kernel/rwsem.c
index b3c6c3fcd8474237a2e41ab4db87ee04c2435b7b..cfff1435bdfb2f1e6d8a88d797c2a205f9145daf 100644 (file)
--- a/kernel/rwsem.c
+++ b/kernel/rwsem.c
@@ -126,6 +126,15 @@ void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest)
 
 EXPORT_SYMBOL(_down_write_nest_lock);
 
+void down_read_non_owner(struct rw_semaphore *sem)
+{
+       might_sleep();
+
+       __down_read(sem);
+}
+
+EXPORT_SYMBOL(down_read_non_owner);
+
 void down_write_nested(struct rw_semaphore *sem, int subclass)
 {
        might_sleep();
@@ -136,6 +145,13 @@ void down_write_nested(struct rw_semaphore *sem, int subclass)
 
 EXPORT_SYMBOL(down_write_nested);
 
+void up_read_non_owner(struct rw_semaphore *sem)
+{
+       __up_read(sem);
+}
+
+EXPORT_SYMBOL(up_read_non_owner);
+
 #endif