fdt: Add function to locate an array in the device tree
fdtdec_locate_array() locates an integer array but does not copy it. This
saves the caller having to allocated wasted space.
Access to array elements should be through the fdt32_to_cpu() macro.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index bdec1a0..4a5ab71 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -363,6 +363,17 @@
return err;
}
+const u32 *fdtdec_locate_array(const void *blob, int node,
+ const char *prop_name, int count)
+{
+ const u32 *cell;
+ int err;
+
+ cell = get_prop_check_min_len(blob, node, prop_name,
+ sizeof(u32) * count, &err);
+ return err ? NULL : cell;
+}
+
int fdtdec_get_bool(const void *blob, int node, const char *prop_name)
{
const s32 *cell;
