clocksource: add common of_clksrc_init() function
It is desirable to move all clocksource drivers to drivers/clocksource,
yet each requires its own initialization function. We'd rather not
pollute <linux/> with a header for each function. Instead, create a
single of_clksrc_init() function which will determine which clocksource
driver to initialize based on device tree.
Based on a similar patch for drivers/irqchip by Thomas Petazzoni.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 4dceaf8..7944f14 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -332,4 +332,13 @@
extern int clocksource_i8253_init(void);
+#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 };
+#endif
+
#endif /* _LINUX_CLOCKSOURCE_H */