On Fri, Mar 22, 2019 at 03:52:59PM +0800, Simon Glass wrote:
On Fri, 22 Mar 2019 at 02:10, Thierry Reding thierry.reding@gmail.com wrote:
From: Thierry Reding treding@nvidia.com
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
Changes in v3:
- update to latest upstream commit
lib/libfdt/fdt_ro.c | 31 +++++++++++++++++++++++++++++++ scripts/dtc/libfdt/fdt_ro.c | 31 +++++++++++++++++++++++++++++++ scripts/dtc/libfdt/libfdt.h | 19 +++++++++++++++++++ scripts/dtc/libfdt/libfdt_env.h | 1 + 4 files changed, 82 insertions(+)
Reviewed-by: Simon Glass sjg@chromium.org
Looks like this was reverted again upstream (for, in my opinion, dubious reasons). Shall I just move it to fdtdec again and we can convert to whatever we end up with upstream, if anything, later on?
Thierry