Re: [PATCH v2] dtc: create tool to diff device trees
From: Frank Rowand
Date: Fri Jan 15 2016 - 18:14:27 EST
On 1/7/2016 11:03 AM, Frank Rowand wrote:
> From: Frank Rowand <frank.rowand@xxxxxxxxxxxxxx>
> Create script to diff device trees.
> The device tree can be in any of the forms recognized by the dtc compiler:
> - source
> - binary blob
> - file system tree (from /proc/devicetree)
> If the device tree is a source file, then it is pre-processed in the
> same way as it would be when built in the linux kernel source tree
> before diffing.
> Signed-off-by: Frank Rowand <frank.rowand@xxxxxxxxxxxxxx>
> Tools to develop and debug device tree are somewhat inadequate. This is a
> small step in improving the situation.
> Rationale for and examples of using the script are provided in slides
> 1 - 78 of the elce 2015 presentation "Solving Device Tree Issues",
> which can be found at:
> (The script was named dtdiff instead of dtx_diff in the presentation.)
> Changes in v2:
> - Remove dt-bindings from list of includes in cpp_flags
> - Remove arch_dtc_flags, which were generated from the arch specific
> dts makefile
> - Reformat to 8 character tabs
> - compile_to_dts(): added back missing return for binary blob
> scripts/dtc/dtx_diff | 343 +++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 343 insertions(+)
< snip >
Did v2 resolve your issues, or would you like some additional changes?