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Date:   Mon, 11 Jan 2021 18:55:48 -0600
From:   Frank Rowand <frowand.list@...il.com>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     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

Hi Viresh,

I may have an email hiccup, but I don't see a "[PATCH V3 1/2]" email, I
only see this "V3 2/2" email.

Please start each new version of a patch series as a stand alone email
instead of a reply to an email in a previous version of the series.
That way each patch series discussion stands out as a separate thread.

Also each version of the patch series needs to include all of the patches
in the current version, even if they are unchanged from the previous
version.

Thanks,

Frank

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.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> ---
> V3:
> - Updated log
> - Remove libfdt_dir
> 
>  scripts/dtc/Makefile | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
> index 4852bf44e913..472ab8cd590c 100644
> --- a/scripts/dtc/Makefile
> +++ b/scripts/dtc/Makefile
> @@ -1,12 +1,17 @@
>  # SPDX-License-Identifier: GPL-2.0
>  # scripts/dtc makefile
>  
> -hostprogs-always-$(CONFIG_DTC)		+= dtc
> +hostprogs-always-$(CONFIG_DTC)		+= dtc fdtdump 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
> +fdtdump-objs	:= fdtdump.o util.o
> +
> +libfdt-objs	:= fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o fdt_strerror.o fdt_empty_tree.o fdt_addresses.o fdt_overlay.o
> +libfdt		= $(addprefix libfdt/,$(libfdt-objs))
> +fdtoverlay-objs	:= $(libfdt) fdtoverlay.o util.o
>  
>  # Source files need to get at the userspace version of libfdt_env.h to compile
>  HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
> 

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