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: 13518685 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 63E7CC4707C for ; Fri, 12 Jan 2024 20:08:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=9/yAszOTVQ8/uXv+qIBMfybLJ4p8oFlsPujXZK6VQYs=; b=GmxS7Ekxkqy94b s1malORJ80cyNR3MAL6pCP0Ske0CFF6AwSR1naf8mVJi1rlTM9AyACPd+RAy+2//mFJdm94OS22Fm gnMuQPjs6FfsDU/TJc5DY81D94EvmlYfgA3yIs/sINKZI2h1RRiqBS9a0EA1QDjiUKX+RFg9cVmf7 6Jiuq7I+ZhFVShQixaAPdnx7Da5kwowK8o3pbdKnVe/RheGrpo0iRenzz7ENG/WNoav4JhEypalLv n0jKnd1L98FjL8790OKb2MoVVSvJJZGIRP5v2H5WbClPu7+8PlScq2nh0NcijePQF4FT1I+9mqNDv o3u9dfkcTG5/yPsIMK4Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rONoq-003tsr-2Z; Fri, 12 Jan 2024 20:07:56 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rONon-003tql-2t; Fri, 12 Jan 2024 20:07:55 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id B168961DF5; Fri, 12 Jan 2024 20:07:52 +0000 (UTC) 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 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240112_120754_034473_58181CA3 X-CRM114-Status: GOOD ( 12.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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