From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZoSSE-0001CO-Rs for barebox@lists.infradead.org; Tue, 20 Oct 2015 08:39:37 +0000 From: Marc Kleine-Budde Date: Tue, 20 Oct 2015 10:39:06 +0200 Message-Id: <1445330352-30153-3-git-send-email-mkl@pengutronix.de> In-Reply-To: <1445330352-30153-1-git-send-email-mkl@pengutronix.de> References: <1445330352-30153-1-git-send-email-mkl@pengutronix.de> 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 v2 2/8] of_path: add of_find_path_by_phandle() To: barebox@lists.infradead.org This patch adds the function of_find_path_by_phandle(), which is similar to of_find_path(), but it takes a phandle not a barebox path description. Signed-off-by: Marc Kleine-Budde --- drivers/of/of_path.c | 22 ++++++++++++++++++++++ include/of.h | 1 + 2 files changed, 23 insertions(+) diff --git a/drivers/of/of_path.c b/drivers/of/of_path.c index b3ef26c6a50d..dae7eb628acb 100644 --- a/drivers/of/of_path.c +++ b/drivers/of/of_path.c @@ -149,6 +149,28 @@ int __of_find_path(struct device_node *node, const char *propname, char **outpat } /** + * of_find_path_by_phandle - translate a phanle in the devicetree to a + * barebox device path + * + * @node: the node containing the phandle pointing to the device tree node + * @phandle: the phandle pointing to the devicetree node + * @outpath: if this function returns 0 outpath will contain the path belonging + * to the input path description. Must be freed with free(). + * @flags: use OF_FIND_PATH_FLAGS_BB to return the .bb device if available + * + */ +int of_find_path_by_phandle(struct device_node *node, const char *phandle, char **outpath, unsigned flags) +{ + struct device_node *rnode; + + rnode = of_parse_phandle(node, phandle, 0); + if (!rnode) + return -EINVAL; + + return __of_find_path(rnode, NULL, outpath, flags); +} + +/** * of_find_path - translate a path description in the devicetree to a barebox * path * diff --git a/include/of.h b/include/of.h index e0ebc39b742d..c1c17e70b389 100644 --- a/include/of.h +++ b/include/of.h @@ -246,6 +246,7 @@ void of_add_memory_bank(struct device_node *node, bool dump, int r, struct device_d *of_find_device_by_node_path(const char *path); #define OF_FIND_PATH_FLAGS_BB 1 /* return .bb device if available */ int of_find_path(struct device_node *node, const char *propname, char **outpath, unsigned flags); +int of_find_path_by_phandle(struct device_node *node, const char *phandle, char **outpath, unsigned flags); int of_register_fixup(int (*fixup)(struct device_node *, void *), void *context); int of_unregister_fixup(int (*fixup)(struct device_node *, void *), void *context); struct device_node *of_find_node_by_alias(struct device_node *root, -- 2.6.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox