BackPup/Linux
1
0 Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-10-07 22:37:45 -04:00
Code Issues Packages Projects Releases Wiki Activity

mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON is not enabled

Browse Source 
Some platforms may not define CONFIG_MFD_SYSCON (or haven't syscon),
it can fix build error for these platforms.

Signed-off-by: Peter Chen <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
This commit is contained in:
Peter Chen authored and Lee Jones committed 2013-10-23 16:22:35 +01:00
1 parent d460a6f3d6
commit df73de9b0d
1 file changed
+25
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/mfd/syscon.h
+25
View File
@@ -17,10 +17,35 @@
struct device_node;
#ifdef CONFIG_MFD_SYSCON
extern struct regmap *syscon_node_to_regmap(struct device_node *np);
extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s);
extern struct regmap *syscon_regmap_lookup_by_phandle(
struct device_node *np,
const char *property);
#else
static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
{
return ERR_PTR(-ENOSYS);
}
static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
{
return ERR_PTR(-ENOSYS);
}
static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
{
return ERR_PTR(-ENOSYS);
}
static inline struct regmap *syscon_regmap_lookup_by_phandle(
struct device_node *np,
const char *property)
{
return ERR_PTR(-ENOSYS);
}
#endif
#endif /* __LINUX_MFD_SYSCON_H__ */