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From: Viresh Kumar <viresh.kumar@linaro.org>
To: Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
	Frank Rowand <frowand.list@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Michal Marek <michal.lkml@markovi.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kbuild@vger.kernel.org,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Bill Mills <bill.mills@linaro.org>,
	tero.kristo@gmail.com
Subject: [RFC 0/2] kbuild: Add support to build overlays (%.dtbo)
Date: Tue,  5 Jan 2021 16:54:15 +0530	[thread overview]
Message-ID: <cover.1609844956.git.viresh.kumar@linaro.org> (raw)

Hello,

Here is an attempt to make some changes in the kernel to allow building
of device tree overlays.

While at it, I would also like to discuss about how we should mention
the base DT blobs in the Makefiles for the overlays, so they can be
build tested to make sure the overlays apply properly.

A simple way is to mention that with -base extension, like this:

$(overlay-file)-base := platform-base.dtb

Any other preference ?

Also fdtoverlay is an external entity right now, and is not part of the
kernel. Do we need to make it part of the kernel ? Or keep using the
external entity ?

Thanks.

--
Viresh

Viresh Kumar (2):
  kbuild: Add support to build overlays (%.dtbo)
  scripts: dtc: Handle outform dtbo

 Makefile             |  4 ++--
 scripts/Makefile.lib | 12 ++++++++++++
 scripts/dtc/dtc.c    |  2 ++
 3 files changed, 16 insertions(+), 2 deletions(-)

-- 
2.25.0.rc1.19.g042ed3e048af


             reply	other threads:[~2021-01-05 11:25 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-05 11:24 Viresh Kumar [this message]
2021-01-05 11:24 ` [RFC 1/2] kbuild: Add support to build overlays (%.dtbo) Viresh Kumar
2021-01-05 11:24 ` [RFC 2/2] scripts: dtc: Handle outform dtbo Viresh Kumar
2021-01-05 15:37   ` Rob Herring
2021-01-12  0:18     ` Frank Rowand
2021-01-05 15:21 ` [RFC 0/2] kbuild: Add support to build overlays (%.dtbo) Rob Herring
2021-01-06 10:09   ` [PATCH] scripts: dtc: Start building fdtoverlay and fdtdump Viresh Kumar
2021-01-06 12:24     ` kernel test robot
2021-01-06 12:24       ` kernel test robot
2021-01-06 15:52     ` Rob Herring
2021-01-07  5:28   ` [RFC 0/2] kbuild: Add support to build overlays (%.dtbo) Masahiro Yamada
2021-01-07  7:27     ` Viresh Kumar
2021-01-07 19:02     ` Rob Herring
2021-01-07 19:42       ` Bill Mills
2021-01-11 17:26       ` Masahiro Yamada
2021-01-11 11:17     ` Viresh Kumar
2021-01-11 15:40       ` Masahiro Yamada
2021-01-11 16:13         ` Rob Herring
2021-01-11 17:02           ` Masahiro Yamada
2021-01-12  9:41             ` Viresh Kumar
2021-01-12  0:25   ` Frank Rowand

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