diff options
| author | Thierry Reding <treding@nvidia.com> | 2019-03-21 19:09:58 +0100 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2019-04-11 20:10:50 -0600 |
| commit | ea1df3e07cc5a4b155e69fcb7f583cb7f4c2cbe3 (patch) | |
| tree | 7ea3d9dec579e6379ea3b9f4270a1edfaee5fb4b /scripts/dtc/libfdt/libfdt_env.h | |
| parent | c7fbee540e006b4cf6cda9272d0d5c9847b3db11 (diff) | |
libfdt: Add phandle generation helper
The new fdt_generate_phandle() function can be used to generate a new,
unused phandle given a specific device tree blob. The implementation is
somewhat naive in that it simply walks the entire device tree to find
the highest phandle value and then returns a phandle value one higher
than that. A more clever implementation might try to find holes in the
current set of phandle values and fill them. But this implementation is
relatively simple and works reliably.
Also add a test that validates that phandles generated by this new API
are indeed unique.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'scripts/dtc/libfdt/libfdt_env.h')
| -rw-r--r-- | scripts/dtc/libfdt/libfdt_env.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/dtc/libfdt/libfdt_env.h b/scripts/dtc/libfdt/libfdt_env.h index bd24746287..3ff9e28630 100644 --- a/scripts/dtc/libfdt/libfdt_env.h +++ b/scripts/dtc/libfdt/libfdt_env.h @@ -52,6 +52,7 @@ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include <stdbool.h> #include <stddef.h> #include <stdint.h> #include <stdlib.h> |