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| author | Thierry Reding <treding@nvidia.com> | 2019-03-20 16:10:03 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-03-21 11:37:44 +1100 |
| commit | 54ea41c22415cb0e283d22faf71202051c89400c (patch) | |
| tree | 0e4e04e459ac6d131a38ccf864eb82f6e55fe176 /README | |
| parent | 4762ad051ee0a654a17c67eb6d8e33196b475b81 (diff) | |
| download | dtc-54ea41c22415cb0e283d22faf71202051c89400c.zip dtc-54ea41c22415cb0e283d22faf71202051c89400c.tar.gz dtc-54ea41c22415cb0e283d22faf71202051c89400c.tar.bz2 | |
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>
Message-Id: <20190320151003.28941-1-thierry.reding@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'README')
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