From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-bk0-x230.google.com ([2a00:1450:4008:c01::230]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uozk5-0006pB-K9 for barebox@lists.infradead.org; Tue, 18 Jun 2013 17:31:00 +0000 Received: by mail-bk0-f48.google.com with SMTP id jf17so1935351bkc.35 for ; Tue, 18 Jun 2013 10:30:34 -0700 (PDT) From: Sebastian Hesselbarth Date: Tue, 18 Jun 2013 19:29:55 +0200 Message-Id: <1371576607-8090-11-git-send-email-sebastian.hesselbarth@gmail.com> In-Reply-To: <1371576607-8090-1-git-send-email-sebastian.hesselbarth@gmail.com> References: <1371576607-8090-1-git-send-email-sebastian.hesselbarth@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 10/22] OF: base: import of_find_compatible_node from Linux OF API To: Sebastian Hesselbarth Cc: barebox@lists.infradead.org This imports of_find_compatible_node and corresponding for_each_compatible_node helper from Linux OF API. Signed-off-by: Sebastian Hesselbarth --- 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 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox