1 files changed, 10 insertions, 2 deletions

diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 27cfda427dd9..ac33184b14fd 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -332,15 +332,23 @@ extern int clocksource_mmio_init(void __iomem *, const char *,
 
 extern int clocksource_i8253_init(void);
 
+struct device_node;
+typedef void(*clocksource_of_init_fn)(struct device_node *);
 #ifdef CONFIG_CLKSRC_OF
 extern void clocksource_of_init(void);
 
 #define CLOCKSOURCE_OF_DECLARE(name, compat, fn)                        \
         static const struct of_device_id __clksrc_of_table_##name       \
                 __used __section(__clksrc_of_table)                     \
-                 = { .compatible = compat, .data = fn };
+                 = { .compatible = compat,                              \
+                     .data = (fn == (clocksource_of_init_fn)NULL) ? fn : fn }
 #else
-#define CLOCKSOURCE_OF_DECLARE(name, compat, fn)
+static inline void clocksource_of_init(void) {}
+#define CLOCKSOURCE_OF_DECLARE(name, compat, fn)                        \
+        static const struct of_device_id __clksrc_of_table_##name       \
+                __unused __section(__clksrc_of_table)                   \
+                 = { .compatible = compat,                              \
+                     .data = (fn == (clocksource_of_init_fn)NULL) ? fn : fn }
 #endif
 
 #endif /* _LINUX_CLOCKSOURCE_H */