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authorShawn Guo <shawn.guo@linaro.org>2011-08-03 11:28:14 +0100
committerGrant Likely <grant.likely@secretlab.ca>2011-08-03 13:02:31 +0100
commit750f463a749e28464151ad26938d11b07b1c43cb (patch)
tree6aabb1512a4000615e93b25beccba606b62f7237 /include/linux
parented8f37370d83e695c0a4fa5d5fc7a83ecb947526 (diff)
dt: add of_alias_scan and of_alias_get_id
The patch adds function of_alias_scan to populate a global lookup table with the properties of 'aliases' node and function of_alias_get_id for drivers to find alias id from the lookup table. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> [grant.likely: add locking and rework parse loop] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/of.h8
-rw-r--r--include/linux/of_fdt.h1
2 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/of.h b/include/linux/of.h
index 0085bb01c041..bc3dc6399547 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -68,6 +68,7 @@ struct device_node {
/* Pointer for first entry in chain of all nodes. */
extern struct device_node *allnodes;
extern struct device_node *of_chosen;
+extern struct device_node *of_aliases;
extern rwlock_t devtree_lock;
static inline bool of_have_populated_dt(void)
@@ -209,6 +210,9 @@ extern int of_device_is_available(const struct device_node *device);
extern const void *of_get_property(const struct device_node *node,
const char *name,
int *lenp);
+#define for_each_property(pp, properties) \
+ for (pp = properties; pp != NULL; pp = pp->next)
+
extern int of_n_addr_cells(struct device_node *np);
extern int of_n_size_cells(struct device_node *np);
extern const struct of_device_id *of_match_node(
@@ -221,6 +225,10 @@ extern int of_parse_phandles_with_args(struct device_node *np,
const char *list_name, const char *cells_name, int index,
struct device_node **out_node, const void **out_args);
+extern void *early_init_dt_alloc_memory_arch(u64 size, u64 align);
+extern void of_alias_scan(void);
+extern int of_alias_get_id(struct device_node *np, const char *stem);
+
extern int of_machine_is_compatible(const char *compat);
extern int prom_add_property(struct device_node* np, struct property* prop);
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index c84d900fbbb3..b74b74ffe0e7 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -97,7 +97,6 @@ extern void early_init_dt_check_for_initrd(unsigned long node);
extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
int depth, void *data);
extern void early_init_dt_add_memory_arch(u64 base, u64 size);
-extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align);
extern u64 dt_mem_next_cell(int s, __be32 **cellp);
/*