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From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
To: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: barebox@lists.infradead.org
Subject: [PATCH 10/22] OF: base: import of_find_compatible_node from Linux OF API
Date: Tue, 18 Jun 2013 19:29:55 +0200	[thread overview]
Message-ID: <1371576607-8090-11-git-send-email-sebastian.hesselbarth@gmail.com> (raw)
In-Reply-To: <1371576607-8090-1-git-send-email-sebastian.hesselbarth@gmail.com>

This imports of_find_compatible_node and corresponding for_each_compatible_node
helper from Linux OF API.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
Cc: barebox@lists.infradead.org
---
 drivers/of/base.c |   30 ++++++++++++++++++++++++++++++
 include/of.h      |   13 +++++++++++++
 2 files changed, 43 insertions(+), 0 deletions(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 85358d9..50a3c22 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -338,6 +338,36 @@ struct device_node *of_find_node_by_name(struct device_node *from,
 EXPORT_SYMBOL(of_find_node_by_name);
 
 /**
+ *	of_find_compatible_node - Find a node based on type and one of the
+ *                                tokens in its "compatible" property
+ *	@from:		The node to start searching from or NULL, the node
+ *			you pass will not be searched, only the next one
+ *			will; typically, you pass what the previous call
+ *			returned.
+ *	@type:		The type string to match "device_type" or NULL to ignore
+ *                      (currently always ignored in barebox)
+ *	@compatible:	The string to match to one of the tokens in the device
+ *			"compatible" list.
+ *
+ *	Returns a pointer to the node found or NULL.
+ */
+struct device_node *of_find_compatible_node(struct device_node *from,
+	const char *type, const char *compatible)
+{
+	struct device_node *np;
+
+	if (!from)
+		from = root_node;
+
+	of_tree_for_each_node(np, from)
+		if (of_device_is_compatible(np, compatible))
+			return np;
+
+	return NULL;
+}
+EXPORT_SYMBOL(of_find_compatible_node);
+
+/**
  * of_match_node - Tell if an device_node has a matching of_match structure
  *      @matches:       array of of device match structures to search in
  *      @node:          the of device structure to match against
diff --git a/include/of.h b/include/of.h
index d1503de..e170e2b 100644
--- a/include/of.h
+++ b/include/of.h
@@ -185,6 +185,8 @@ extern struct property *of_find_property(const struct device_node *np,
 extern struct device_node *of_find_node_by_name(struct device_node *from,
 	const char *name);
 extern struct device_node *of_find_node_by_path(const char *path);
+extern struct device_node *of_find_compatible_node(struct device_node *from,
+	const char *type, const char *compat);
 extern int of_device_is_available(const struct device_node *device);
 
 extern void of_alias_scan(void);
@@ -249,6 +251,14 @@ static inline struct device_node *of_find_node_by_name(struct device_node *from,
 	return NULL;
 }
 
+static inline struct device_node *of_find_compatible_node(
+						struct device_node *from,
+						const char *type,
+						const char *compat)
+{
+	return NULL;
+}
+
 static inline int of_device_is_available(const struct device_node *device)
 {
 	return 0;
@@ -272,5 +282,8 @@ static inline const char *of_alias_get(struct device_node *np)
 #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_compatible_node(dn, type, compatible) \
+	for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
+	     dn = of_find_compatible_node(dn, type, compatible))
 
 #endif /* __OF_H */
-- 
1.7.2.5


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  parent reply	other threads:[~2013-06-18 17:31 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-18 17:29 [PATCH 00/22] Barebox OF API fixes, sync, and cleanup Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 01/22] lib: string: import case-insensitive string compare Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 02/22] OF: base: bail out early on missing matches for of_match_node Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 03/22] OF: base: also update property length on of_property_write_u32 Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 04/22] OF: base: export of_alias_scan Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 05/22] OF: base: convert strcmp to default string compare functions Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 06/22] OF: base: sync of_find_property with linux OF API Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 07/22] OF: base: sync of_find_node_by_path " Sebastian Hesselbarth
2013-06-18 20:13   ` Sascha Hauer
2013-06-18 20:19     ` Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 08/22] OF: base: rename of_node_disabled to of_device_is_available Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 09/22] OF: base: import of_find_node_by_name from Linux OF API Sebastian Hesselbarth
2013-06-18 17:29 ` Sebastian Hesselbarth [this message]
2013-06-18 17:29 ` [PATCH 11/22] OF: base: import of_find_matching_node_and_match " Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 12/22] OF: base: import of_find_node_with_property " Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 13/22] OF: base: import parent/child functions " Sebastian Hesselbarth
2013-06-18 20:18   ` Sascha Hauer
2013-06-18 20:29   ` Sascha Hauer
2013-06-18 20:34     ` Sebastian Hesselbarth
2013-06-18 17:29 ` [PATCH 14/22] OF: base: import of_property_read_* helpers " Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 15/22] OF: base: import of_parse_phandle " Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 16/22] OF: base: import parse phandle functions " Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 17/22] OF: base: introduce property write for bool, u8, u16, and u64 Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 18/22] OF: base: import property iterators from Linux OF API Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 19/22] OF: base: remove of_tree_for_each_node from public API Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 20/22] OF: base: remove of_find_child_by_name Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 21/22] OF: base: convert and remove device_node_for_nach_child Sebastian Hesselbarth
2013-06-18 17:30 ` [PATCH 22/22] OF: base: cleanup base function include Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 00/22] Barebox OF API fixes, sync, and cleanup Sebastian Hesselbarth
2013-06-20  9:18   ` Sascha Hauer
2013-06-19  9:09 ` [PATCH v2 01/22] lib: string: import case-insensitive string compare Sebastian Hesselbarth
2013-06-20  9:04   ` Sascha Hauer
2013-06-19  9:09 ` [PATCH v2 02/22] OF: base: bail out early on missing matches for of_match_node Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 03/22] OF: base: also update property length on of_property_write_u32 Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 04/22] OF: base: export of_alias_scan Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 05/22] OF: base: convert strcmp to default string compare functions Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 06/22] OF: base: sync of_find_property with linux OF API Sebastian Hesselbarth
2013-06-20  8:57   ` Sascha Hauer
2013-06-19  9:09 ` [PATCH v2 07/22] OF: base: sync of_find_node_by_path " Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 08/22] OF: base: rename of_node_disabled to of_device_is_available Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 09/22] OF: base: import of_find_node_by_name from Linux OF API Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 10/22] OF: base: import of_find_compatible_node " Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 11/22] OF: base: import of_find_matching_node_and_match " Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 12/22] OF: base: import of_find_node_with_property " Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 13/22] OF: base: import parent/child functions " Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 14/22] OF: base: import of_property_read_* helpers " Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 15/22] OF: base: import of_parse_phandle " Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 16/22] OF: base: import parse phandle functions " Sebastian Hesselbarth
2013-06-20  8:33   ` Sascha Hauer
2013-06-19  9:09 ` [PATCH v2 17/22] OF: base: introduce property write for bool, u8, u16, and u64 Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 18/22] OF: base: import property iterators from Linux OF API Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 19/22] OF: base: remove of_tree_for_each_node from public API Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 20/22] OF: base: remove of_find_child_by_name Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 21/22] OF: base: convert and remove device_node_for_nach_child Sebastian Hesselbarth
2013-06-19  9:09 ` [PATCH v2 22/22] OF: base: cleanup base function include Sebastian Hesselbarth

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