[PATCH] of: Add missing node iteration stubs for disabled CONFIG_OF
Tomasz Figa
tomasz.figa at gmail.com
Sat Mar 9 15:15:54 EST 2013
This patch moves several for_each macros out of the #ifdef CONFIG_OF
block and adds inline stubs for functions used by these macros, compiled
conditionally when CONFIG_OF is not enabled.
This eliminates the need to explicitly check for CONFIG_OF in driver
code using mentioned functions and macros.
Signed-off-by: Tomasz Figa <tomasz.figa at gmail.com>
---
include/linux/of.h | 92 +++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 63 insertions(+), 29 deletions(-)
diff --git a/include/linux/of.h b/include/linux/of.h
index a0f1292..7a736b8 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -86,6 +86,31 @@ static inline struct device_node *of_node_get(struct device_node *node)
static inline void of_node_put(struct device_node *node) { }
#endif /* !CONFIG_OF_DYNAMIC */
+#define for_each_node_by_name(dn, name) \
+ for (dn = of_find_node_by_name(NULL, name); dn; \
+ dn = of_find_node_by_name(dn, name))
+#define for_each_node_by_type(dn, type) \
+ for (dn = of_find_node_by_type(NULL, type); dn; \
+ dn = of_find_node_by_type(dn, type))
+#define for_each_compatible_node(dn, type, compatible) \
+ for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
+ dn = of_find_compatible_node(dn, type, compatible))
+#define for_each_matching_node(dn, matches) \
+ for (dn = of_find_matching_node(NULL, matches); dn; \
+ dn = of_find_matching_node(dn, matches))
+#define for_each_matching_node_and_match(dn, matches, match) \
+ for (dn = of_find_matching_node_and_match(NULL, matches, match); \
+ dn; dn = of_find_matching_node_and_match(dn, matches, match))
+#define for_each_child_of_node(parent, child) \
+ for (child = of_get_next_child(parent, NULL); child != NULL; \
+ child = of_get_next_child(parent, child))
+#define for_each_available_child_of_node(parent, child) \
+ for (child = of_get_next_available_child(parent, NULL); child != NULL; \
+ child = of_get_next_available_child(parent, child))
+#define for_each_node_with_property(dn, prop_name) \
+ for (dn = of_find_node_with_property(NULL, prop_name); dn; \
+ dn = of_find_node_with_property(dn, prop_name))
+
#ifdef CONFIG_OF
/* Pointer for first entry in chain of all nodes. */
@@ -167,19 +192,10 @@ static inline const char *of_node_full_name(const struct device_node *np)
extern struct device_node *of_find_node_by_name(struct device_node *from,
const char *name);
-#define for_each_node_by_name(dn, name) \
- for (dn = of_find_node_by_name(NULL, name); dn; \
- dn = of_find_node_by_name(dn, name))
extern struct device_node *of_find_node_by_type(struct device_node *from,
const char *type);
-#define for_each_node_by_type(dn, type) \
- for (dn = of_find_node_by_type(NULL, type); dn; \
- dn = of_find_node_by_type(dn, type))
extern struct device_node *of_find_compatible_node(struct device_node *from,
const char *type, const char *compat);
-#define for_each_compatible_node(dn, type, compatible) \
- for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
- dn = of_find_compatible_node(dn, type, compatible))
extern struct device_node *of_find_matching_node_and_match(
struct device_node *from,
const struct of_device_id *matches,
@@ -190,12 +206,6 @@ static inline struct device_node *of_find_matching_node(
{
return of_find_matching_node_and_match(from, matches, NULL);
}
-#define for_each_matching_node(dn, matches) \
- for (dn = of_find_matching_node(NULL, matches); dn; \
- dn = of_find_matching_node(dn, matches))
-#define for_each_matching_node_and_match(dn, matches, match) \
- for (dn = of_find_matching_node_and_match(NULL, matches, match); \
- dn; dn = of_find_matching_node_and_match(dn, matches, match))
extern struct device_node *of_find_node_by_path(const char *path);
extern struct device_node *of_find_node_by_phandle(phandle handle);
extern struct device_node *of_get_parent(const struct device_node *node);
@@ -207,14 +217,6 @@ extern struct device_node *of_get_next_available_child(
extern struct device_node *of_get_child_by_name(const struct device_node *node,
const char *name);
-#define for_each_child_of_node(parent, child) \
- for (child = of_get_next_child(parent, NULL); child != NULL; \
- child = of_get_next_child(parent, child))
-
-#define for_each_available_child_of_node(parent, child) \
- for (child = of_get_next_available_child(parent, NULL); child != NULL; \
- child = of_get_next_available_child(parent, child))
-
static inline int of_get_child_count(const struct device_node *np)
{
struct device_node *child;
@@ -228,10 +230,6 @@ static inline int of_get_child_count(const struct device_node *np)
extern struct device_node *of_find_node_with_property(
struct device_node *from, const char *prop_name);
-#define for_each_node_with_property(dn, prop_name) \
- for (dn = of_find_node_with_property(NULL, prop_name); dn; \
- dn = of_find_node_with_property(dn, prop_name))
-
extern struct property *of_find_property(const struct device_node *np,
const char *name,
int *lenp);
@@ -353,13 +351,28 @@ static inline struct device_node *of_find_node_by_name(struct device_node *from,
return NULL;
}
+static inline struct device_node *of_find_node_by_type(struct device_node *from,
+ const char *type)
+{
+ return NULL;
+}
+
static inline bool of_have_populated_dt(void)
{
return false;
}
-#define for_each_child_of_node(parent, child) \
- while (0)
+static inline struct device_node *of_get_next_child(const struct device_node *node,
+ struct device_node *prev)
+{
+ return NULL;
+}
+
+static inline struct device_node *of_get_next_available_child(
+ const struct device_node *node, struct device_node *prev)
+{
+ return NULL;
+}
static inline struct device_node *of_get_child_by_name(
const struct device_node *node,
@@ -373,6 +386,12 @@ static inline int of_get_child_count(const struct device_node *np)
return 0;
}
+static inline struct device_node *of_find_node_with_property(
+ struct device_node *from, const char *prop_name)
+{
+ return NULL;
+}
+
static inline int of_device_is_compatible(const struct device_node *device,
const char *name)
{
@@ -394,6 +413,21 @@ static inline struct device_node *of_find_compatible_node(
return NULL;
}
+static inline struct device_node *of_find_matching_node_and_match(
+ struct device_node *from,
+ const struct of_device_id *matches,
+ const struct of_device_id **match)
+{
+ return NULL;
+}
+
+static inline struct device_node *of_find_matching_node(
+ struct device_node *from,
+ const struct of_device_id *matches)
+{
+ return NULL;
+}
+
static inline int of_property_read_u8_array(const struct device_node *np,
const char *propname, u8 *out_values, size_t sz)
{
--
1.8.1.5
More information about the linux-arm-kernel
mailing list