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of/reconfig: Add empty stubs for the of_reconfig methods 

To simplify subsystem setup code, make empty stubs for the
of_reconfig_*() methods. This is particularly useful for registering and
unregistering the notifiers so that it doesn't impact the flow of the
subsystem setup code.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
hifive-unleashed-5.1
Grant Likely 2014-11-21 15:14:58 +00:00
parent b53a2340d0
commit f6892d193f
1 changed files with 23 additions and 6 deletions
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29
include/linux/of.h
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@ -324,11 +324,6 @@ struct of_prop_reconfig {
struct property *old_prop;
};
extern int of_reconfig_notifier_register(struct notifier_block *);
extern int of_reconfig_notifier_unregister(struct notifier_block *);
extern int of_reconfig_notify(unsigned long, void *);
extern int of_reconfig_get_state_change(unsigned long action, void *arg);
extern int of_attach_node(struct device_node *);
extern int of_detach_node(struct device_node *);
@ -895,6 +890,11 @@ enum of_reconfig_change {
};
#ifdef CONFIG_OF_DYNAMIC
extern int of_reconfig_notifier_register(struct notifier_block *);
extern int of_reconfig_notifier_unregister(struct notifier_block *);
extern int of_reconfig_notify(unsigned long, void *);
extern int of_reconfig_get_state_change(unsigned long action, void *arg);
extern void of_changeset_init(struct of_changeset *ocs);
extern void of_changeset_destroy(struct of_changeset *ocs);
extern int of_changeset_apply(struct of_changeset *ocs);
@ -932,7 +932,24 @@ static inline int of_changeset_update_property(struct of_changeset *ocs,
{
return of_changeset_action(ocs, OF_RECONFIG_UPDATE_PROPERTY, np, prop);
}
#endif
#else /* CONFIG_OF_DYNAMIC */
static inline int of_reconfig_notifier_register(struct notifier_block *nb)
{
return -EINVAL;
}
static inline int of_reconfig_notifier_unregister(struct notifier_block *nb)
{
return -EINVAL;
}
static inline int of_reconfig_notify(unsigned long action, void *arg)
{
return -EINVAL;
}
static inline int of_reconfig_get_state_change(unsigned long action, void *arg)
{
return -EINVAL;
}
#endif /* CONFIG_OF_DYNAMIC */
/* CONFIG_OF_RESOLVE api */
extern int of_resolve_phandles(struct device_node *tree);