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-rw-r--r--include/clocksource/samsung_pwm.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/clocksource/samsung_pwm.h b/include/clocksource/samsung_pwm.h
index eff8668da252..399d2414734f 100644
--- a/include/clocksource/samsung_pwm.h
+++ b/include/clocksource/samsung_pwm.h
@@ -23,6 +23,8 @@
struct platform_device;
struct device_node;
+extern spinlock_t samsung_pwm_lock;
+
struct samsung_pwm_variant {
u8 bits;
u8 div_base;