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Date: Tue, 12 Jan 2021 10:38:18 +0530 From: Viresh Kumar <viresh.kumar@...aro.org> To: Frank Rowand <frowand.list@...il.com> Cc: Pantelis Antoniou <pantelis.antoniou@...sulko.com>, Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org, Vincent Guittot <vincent.guittot@...aro.org>, Bill Mills <bill.mills@...aro.org>, anmar.oueja@...aro.org, Masahiro Yamada <masahiroy@...nel.org> Subject: Re: [PATCH V3 2/2] scripts: dtc: Build fdtoverlay and fdtdump tools On 11-01-21, 18:44, Frank Rowand wrote: > On 1/7/21 12:25 AM, Viresh Kumar wrote: > > We will start building overlays for platforms soon in the kernel and > > would need these tools going forward. Lets start building them. > > > > The fdtoverlay program applies (or merges) one ore more overlay dtb > > blobs to a base dtb blob. The kernel build system would later use > > fdtoverlay to generate the overlaid blobs based on platform specific > > configurations. > > > > The fdtdump program prints a readable version of a flat device-tree > > file. This is a very useful tool to analyze the details of the overlay's > > dtb and the final dtb produced by fdtoverlay after applying the > > overlay's dtb to a base dtb. > > You can calso dump an FDT with: > > dtc -O dts XXX.dtb > > Is this sufficient for the desired functionality, or is there something > additional in fdtdump that is needed? Not for my usecase at least. > If nothing additional needed, and there is no other justification for adding > another program, I would prefer to leave fdtdump out. Okay, then I will also remove the stale version of fdtdump which is already there in kernel since a long time. -- viresh
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