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| author | Grant Likely <grant.likely@linaro.org> | 2014-07-15 23:25:43 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2014-07-23 17:05:46 -0600 |
| commit | a25095d451ece23b1fef34474f3230100db7aa05 (patch) | |
| tree | 1144ef8101664c7242e27d62b179ec7d9438cefb /drivers/of | |
| parent | 6162dbe49a451f96431a23b4821f05e3bd925bc1 (diff) | |
| download | linux-a25095d451ece23b1fef34474f3230100db7aa05.tar.gz linux-a25095d451ece23b1fef34474f3230100db7aa05.tar.bz2 linux-a25095d451ece23b1fef34474f3230100db7aa05.zip | |
of: Move dynamic node fixups out of powerpc and into common code
PowerPC does an odd thing with dynamic nodes. It uses a notifier to
catch new node additions and set some of the values like name and type.
This makes no sense since that same code can be put directly into
of_attach_node(). Besides, all dynamic node users need this, not just
powerpc. Fix this problem by moving the logic out of arch/powerpc and
into drivers/of/dynamic.c.
It is also important to remove this notifier because we want to move the
firing of notifiers from before the tree is modified to after so that
the receiver gets a consistent view of the tree, but that is
incompatible with notifiers that modify the node.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Nathan Fontenot <nfont@austin.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/base.c | 4 | ||||
| -rw-r--r-- | drivers/of/dynamic.c | 13 | ||||
| -rw-r--r-- | drivers/of/of_private.h | 2 |
3 files changed, 17 insertions, 2 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index ad4929cbd876..ededf8e33145 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -266,8 +266,8 @@ EXPORT_SYMBOL(of_find_all_nodes); * Find a property with a given name for a given node * and return the value. */ -static const void *__of_get_property(const struct device_node *np, - const char *name, int *lenp) +const void *__of_get_property(const struct device_node *np, + const char *name, int *lenp) { struct property *pp = __of_find_property(np, name, lenp); diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index b96d83100987..7c020b9a3317 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -98,6 +98,19 @@ int of_property_notify(int action, struct device_node *np, void __of_attach_node(struct device_node *np) { + const __be32 *phandle; + int sz; + + np->name = __of_get_property(np, "name", NULL) ? : "<NULL>"; + np->type = __of_get_property(np, "device_type", NULL) ? : "<NULL>"; + + phandle = __of_get_property(np, "phandle", &sz); + if (!phandle) + phandle = __of_get_property(np, "linux,phandle", &sz); + if (IS_ENABLED(PPC_PSERIES) && !phandle) + phandle = __of_get_property(np, "ibm,phandle", &sz); + np->phandle = (phandle && (sz >= 4)) ? be32_to_cpup(phandle) : 0; + np->child = NULL; np->sibling = np->parent->child; np->allnext = np->parent->allnext; diff --git a/drivers/of/of_private.h b/drivers/of/of_private.h index 0d99ba8caeed..8129c0e58d70 100644 --- a/drivers/of/of_private.h +++ b/drivers/of/of_private.h @@ -63,6 +63,8 @@ static inline int of_property_notify(int action, struct device_node *np, struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags); struct device_node *__of_node_alloc(const char *full_name, gfp_t allocflags); +extern const void *__of_get_property(const struct device_node *np, + const char *name, int *lenp); extern int __of_add_property(struct device_node *np, struct property *prop); extern int __of_add_property_sysfs(struct device_node *np, struct property *prop); |