linux-kernel - Re: [PATCH V6 2/6] scripts: dtc: Build fdtoverlay tool

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Date:   Fri, 29 Jan 2021 11:41:54 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Frank Rowand <frowand.list@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        linux-kernel@...r.kernel.org, anmar.oueja@...aro.org,
        Bill Mills <bill.mills@...aro.org>,
        David Gibson <david@...son.dropbear.id.au>,
        devicetree@...r.kernel.org, Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH V6 2/6] scripts: dtc: Build fdtoverlay tool

On 29-01-21, 00:03, Frank Rowand wrote:
> On 1/22/21 4:50 AM, Viresh Kumar wrote:
> > We will start building overlays for platforms soon in the kernel and
> > would need fdtoverlay going forward. Lets start building it.
> > 
> > The fdtoverlay program applies (or merges) one or 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.
> > 
> > Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> > ---
> >  scripts/dtc/Makefile | 6 +++++-
> >  1 file changed, 5 insertions(+), 1 deletion(-)
> > 
> > diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
> > index 4852bf44e913..5f19386a49eb 100644
> > --- a/scripts/dtc/Makefile
> > +++ b/scripts/dtc/Makefile
> > @@ -1,13 +1,17 @@
> >  # SPDX-License-Identifier: GPL-2.0
> >  # scripts/dtc makefile
> >  
> > -hostprogs-always-$(CONFIG_DTC)		+= dtc
> > +hostprogs-always-$(CONFIG_DTC)		+= dtc fdtoverlay
> >  hostprogs-always-$(CHECK_DT_BINDING)	+= dtc
> >  
> >  dtc-objs	:= dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
> >  		   srcpos.o checks.o util.o
> >  dtc-objs	+= dtc-lexer.lex.o dtc-parser.tab.o
> > 
> 
> Please add this comment:
> 
> # The upstream project builds libfdt as a separate library.  We are choosing to
> # instead directly link the libfdt object files into fdtoverly

My bad, I checked this again and you gave the exact same comment
during V4 as well. Sorry about missing this earlier.

-- 
viresh