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authorShannon Zhao <shannon.zhao@linaro.org>2016-04-07 15:03:33 +0300
committerDavid Vrabel <david.vrabel@citrix.com>2016-07-06 12:34:46 +0300
commit9c6098685a1d5df72da61ff7838ebb1524796869 (patch)
tree4e24b0c39329c6de73c6394387f3ec3e9af8adea /include/linux/of_fdt.h
parentbe1aaf4e4026118e4191117a48f8a8078d1c0ed4 (diff)
downloadlinux-9c6098685a1d5df72da61ff7838ebb1524796869.tar.xz
FDT: Add a helper to get the subnode by given name
Sometimes it needs to check if there is a subnode of given node in FDT by given name. Introduce this helper to get the subnode if it exists. CC: Rob Herring <robh@kernel.org> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Rob Herring <robh@kernel.org> Tested-by: Julien Grall <julien.grall@arm.com>
Diffstat (limited to 'include/linux/of_fdt.h')
-rw-r--r--include/linux/of_fdt.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 901ec01c9fba..26c3302ae58f 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -53,6 +53,8 @@ extern char __dtb_end[];
extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
int depth, void *data),
void *data);
+extern int of_get_flat_dt_subnode_by_name(unsigned long node,
+ const char *uname);
extern const void *of_get_flat_dt_prop(unsigned long node, const char *name,
int *size);
extern int of_flat_dt_is_compatible(unsigned long node, const char *name);