From patchwork Fri Jan 12 20:07:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 13518687 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A728E15ADB; Fri, 12 Jan 2024 20:07:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gtxcC37X" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93C27C433F1; Fri, 12 Jan 2024 20:07:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705090072; bh=OrQw0dbMF0js5SoZCQr9kcnhmqPonHSy4cpM0zYdF2w=; h=From:To:Cc:Subject:Date:From; b=gtxcC37X2WxJ4Ag5UD09FLbJ3nEwuGIhOGOu6DNMTfRiSgUvAiRWHv3/hQyJQpxKQ A1asoHh7C1ft4+IuEbfix1Gf1pt1YKCEzW7Y/XOaeNOUyUEv9ePpL23qc0FqrHzZqp vT3y2v8e52od6NzaKnSki/9n/gksekczLmkQVO1HYRmwE2logou69Sl7/ae1Peys+e OSjyJlHtTNAfgsEzTESnp2XR4K3Fx40Ac3xvUanMsNvTH4mh64puVDEqjC4QR9xuIS 4XN4firdS38espv2NzXsbmhGVx95bDBpNtKxSdI3K1VifWNRQXzOCmz+sIxI3qs3A2 cKz3F2pW1w9aA== From: Stephen Boyd To: Rob Herring Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, linux-um@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kunit-dev@googlegroups.com, linux-kselftest@vger.kernel.org, devicetree@vger.kernel.org, Anton Ivanov , Brendan Higgins , Catalin Marinas , David Gow , Frank Rowand , Johannes Berg , Richard Weinberger , Will Deacon Subject: [PATCH 0/6] of: populate of_root node if bootloader doesn't Date: Fri, 12 Jan 2024 12:07:43 -0800 Message-ID: <20240112200750.4062441-1-sboyd@kernel.org> X-Mailer: git-send-email 2.43.0.275.g3460e3d667-goog Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Arch maintainers, please ack/review patches. This is a resend of a series from Frank last year[1]. I worked in Rob's review comments to unconditionally call unflatten_device_tree() and fixup/audit calls to of_have_populated_dt() so that behavior doesn't change. I need this series so I can add DT based tests in the clk framework. Either I can merge it through the clk tree once everyone is happy, or Rob can merge it through the DT tree and provide some branch so I can base clk patches on it. Changes from Frank's series[1]: * Add a DTB loaded kunit test * Make of_have_populated_dt() return false if the DTB isn't from the bootloader * Architecture calls made unconditional so that a root node is always made Frank Rowand (2): of: Create of_root if no dtb provided by firmware of: unittest: treat missing of_root as error instead of fixing up Stephen Boyd (4): arm64: Unconditionally call unflatten_device_tree() um: Unconditionally call unflatten_device_tree() of: Always unflatten in unflatten_and_copy_device_tree() of: Add KUnit test to confirm DTB is loaded arch/arm64/kernel/setup.c | 3 +- arch/um/kernel/dtb.c | 14 +++--- drivers/of/.kunitconfig | 3 ++ drivers/of/Kconfig | 16 ++++++- drivers/of/Makefile | 4 +- drivers/of/empty_root.dts | 6 +++ drivers/of/fdt.c | 57 +++++++++++++++++------ drivers/of/of_test.c | 98 +++++++++++++++++++++++++++++++++++++++ drivers/of/platform.c | 3 -- drivers/of/unittest.c | 16 ++----- include/linux/of.h | 17 +++++-- 11 files changed, 191 insertions(+), 46 deletions(-) create mode 100644 drivers/of/.kunitconfig create mode 100644 drivers/of/empty_root.dts create mode 100644 drivers/of/of_test.c Cc: Anton Ivanov Cc: Brendan Higgins Cc: Catalin Marinas Cc: David Gow Cc: Frank Rowand Cc: Johannes Berg Cc: Richard Weinberger Cc: Rob Herring Cc: Will Deacon [1] https://lore.kernel.org/r/20230317053415.2254616-1-frowand.list@gmail.com base-commit: 0dd3ee31125508cd67f7e7172247f05b7fd1753a