diff options
Diffstat (limited to 'include/linux/of.h')
| -rw-r--r-- | include/linux/of.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index fe1dec87fd6..aa01cf5852f 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -23,6 +23,7 @@ #include <linux/spinlock.h> #include <linux/topology.h> #include <linux/notifier.h> +#include <linux/list.h> #include <asm/byteorder.h> #include <asm/errno.h> @@ -957,4 +958,34 @@ static inline int of_reconfig_get_state_change(unsigned long action, /* CONFIG_OF_RESOLVE api */ extern int of_resolve_phandles(struct device_node *tree); +/** + * Overlay support + */ + +#ifdef CONFIG_OF_OVERLAY + +/* ID based overlays; the API for external users */ +int of_overlay_create(struct device_node *tree); +int of_overlay_destroy(int id); +int of_overlay_destroy_all(void); + +#else + +static inline int of_overlay_create(struct device_node *tree) +{ + return -ENOTSUPP; +} + +static inline int of_overlay_destroy(int id) +{ + return -ENOTSUPP; +} + +static inline int of_overlay_destroy_all(void) +{ + return -ENOTSUPP; +} + +#endif + #endif /* _LINUX_OF_H */ |