From: Frank Rowand <frowand.list@gmail.com>
To: "Rob Herring" <robh+dt@kernel.org>,
"Clément Léger" <clement.leger@bootlin.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Lizhi Hou <lizhi.hou@xilinx.com>,
Allan Nielsen <allan.nielsen@microchip.com>,
Horatiu Vultur <horatiu.vultur@microchip.com>,
Steen Hegelund <steen.hegelund@microchip.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH 0/2] of: populate of_root_node if not set (alternate)
Date: Wed, 22 Feb 2023 16:12:57 -0600 [thread overview]
Message-ID: <db732d8a-b90b-ccf9-ad9b-a9a6455ed841@gmail.com> (raw)
In-Reply-To: <20230222035452.803375-1-frowand.list@gmail.com>
On 2/21/23 21:54, Frank Rowand wrote:
> This series is a different implementation to achieve the goals of
> https://lore.kernel.org/r/20220623105044.152832-1-clement.leger@bootlin.com
>
> In order to apply overlays or create new nodes under the root node, the
> kernel expects of_root to be set. On some system where a device-tree was
> not provided by firmware (x86 for instance) if CONFIG_OF is enabled,
> then we will end up with a null of_root. This series adds support to
> create this root node using a builtin dtb and removes the manual
> creation of the root node done in unittests.c.
>
> Changes since version 1: (patch 1/2)
Email subject lines should have said "v2". I resent the series with the "v2".
-Frank
> - refresh for 6.2-rc1
> - update Signed-off-by
> - fix typo in of_fdt.h: s/of_setup/setup_of
> - unflatten_device_tree(): validate size in header field dtb_empty_root
> that will be used to copy dtb_empty_root
> - add Kconfig option to manually select CONFIG_OF_EARLY_FLATTREE
>
> Changes since version 1: (patch 2/2)
> - refresh for 6.2-rc1
> - update Signed-off-by
> - fix formatting error (leading space) in patch comment
>
> Frank Rowand (2):
> of: create of_root if no dtb provided
> of: unittest: treat missing of_root as error instead of fixing up
>
> drivers/of/Kconfig | 7 ++++++-
> drivers/of/Makefile | 2 +-
> drivers/of/empty_root.dts | 6 ++++++
> drivers/of/fdt.c | 27 ++++++++++++++++++++++++++-
> drivers/of/unittest.c | 16 ++++++----------
> include/linux/of_fdt.h | 2 ++
> init/main.c | 2 ++
> 7 files changed, 49 insertions(+), 13 deletions(-)
> create mode 100644 drivers/of/empty_root.dts
>
next prev parent reply other threads:[~2023-02-22 22:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-22 3:54 [PATCH 0/2] of: populate of_root_node if not set (alternate) Frank Rowand
2023-02-22 3:54 ` [PATCH 1/2] of: create of_root if no dtb provided Frank Rowand
2023-02-22 3:54 ` [PATCH 2/2] of: unittest: treat missing of_root as error instead of fixing up Frank Rowand
2023-02-22 22:12 ` Frank Rowand [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-06-24 3:43 [PATCH 0/2] of: populate of_root_node if not set (alternate) frowand.list
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