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author | Simon Glass <sjg@chromium.org> | 2015-10-17 19:41:14 -0600 |
---|---|---|
committer | Michal Simek <michal.simek@xilinx.com> | 2015-11-04 14:49:51 +0100 |
commit | 3bc37a50e0db9978c6fbb1b2b6c3a351cebe631e (patch) | |
tree | f8a7b3409e4da684b0f394eaac2b89d49c444d33 /lib | |
parent | 44303dfa792b0a4f81d6f6a719467db9a20063b5 (diff) | |
download | u-boot-imx-3bc37a50e0db9978c6fbb1b2b6c3a351cebe631e.zip u-boot-imx-3bc37a50e0db9978c6fbb1b2b6c3a351cebe631e.tar.gz u-boot-imx-3bc37a50e0db9978c6fbb1b2b6c3a351cebe631e.tar.bz2 |
fdt: Add a function to look up a /chosen property
It is sometimes useful to find a property in the chosen node. Add a function
for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/fdtdec.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 9db033a..e1df144 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -601,16 +601,21 @@ int fdtdec_get_alias_seq(const void *blob, const char *base, int offset, return -ENOENT; } -int fdtdec_get_chosen_node(const void *blob, const char *name) +const char *fdtdec_get_chosen_prop(const void *blob, const char *name) { - const char *prop; int chosen_node; - int len; if (!blob) - return -FDT_ERR_NOTFOUND; + return NULL; chosen_node = fdt_path_offset(blob, "/chosen"); - prop = fdt_getprop(blob, chosen_node, name, &len); + return fdt_getprop(blob, chosen_node, name, NULL); +} + +int fdtdec_get_chosen_node(const void *blob, const char *name) +{ + const char *prop; + + prop = fdtdec_get_chosen_prop(blob, name); if (!prop) return -FDT_ERR_NOTFOUND; return fdt_path_offset(blob, prop); |