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-rw-r--r--include/linux/clocksource.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index aa7032c7238f..7279b94c01da 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -333,15 +333,23 @@ extern int clocksource_mmio_init(void __iomem *, const char *,
333 333
334extern int clocksource_i8253_init(void); 334extern int clocksource_i8253_init(void);
335 335
336struct device_node;
337typedef void(*clocksource_of_init_fn)(struct device_node *);
336#ifdef CONFIG_CLKSRC_OF 338#ifdef CONFIG_CLKSRC_OF
337extern void clocksource_of_init(void); 339extern void clocksource_of_init(void);
338 340
339#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \ 341#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
340 static const struct of_device_id __clksrc_of_table_##name \ 342 static const struct of_device_id __clksrc_of_table_##name \
341 __used __section(__clksrc_of_table) \ 343 __used __section(__clksrc_of_table) \
342 = { .compatible = compat, .data = fn }; 344 = { .compatible = compat, \
345 .data = (fn == (clocksource_of_init_fn)NULL) ? fn : fn }
343#else 346#else
344#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) 347static inline void clocksource_of_init(void) {}
348#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
349 static const struct of_device_id __clksrc_of_table_##name \
350 __attribute__((unused)) \
351 = { .compatible = compat, \
352 .data = (fn == (clocksource_of_init_fn)NULL) ? fn : fn }
345#endif 353#endif
346 354
347#endif /* _LINUX_CLOCKSOURCE_H */ 355#endif /* _LINUX_CLOCKSOURCE_H */