From mboxrd@z Thu Jan 1 00:00:00 1970 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 7C2D7CD98FC for ; Thu, 13 Nov 2025 23:00:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=F6QgwDgccq7D+lG9A5PyN5p2BY2kVFyXcVZ3jBg/ylI=; b=3OCuRGBcImfGygsHVZnMJUt3PC 8J9m7qlhr7xqPY1HK4Y4QcTiqTYyc0owF2WkSUCqTliLivdUiHNaaBmfE4Wj1tQlXFSFMN/zIL8fl CmnGfYkktHgoaFsoOsHI99h0YrXWATUaQUUtslC5z1XaPVVs7diVBOxezcZ7wPDsKGhBiOWh+lJBP +tyztYRCQNx/O/VwYA2AJf1t8o5v3PeISHmuUPRnq01ZKApGusMnUPCWxYFfCInKILYLU/VFaTN19 WkR73agTQOnlLxFZNhW6WmGOXvhRoWR+JK7UZtKEGdIw+2Lk0/3jySjaJoKacwymdi2kz0NoE4n3i KSkbhjAA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vJgIR-0000000BDj6-0rXn; Thu, 13 Nov 2025 23:00:07 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vJgIO-0000000BDij-24Dc for linux-arm-kernel@lists.infradead.org; Thu, 13 Nov 2025 23:00:05 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id C477A43A11; Thu, 13 Nov 2025 23:00:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78662C4CEF8; Thu, 13 Nov 2025 23:00:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763074803; bh=vwc/0+YWdp+aaq0bFVlBWiGoaUEzA36I8CJQqteolBw=; h=From:To:Cc:Subject:Date:From; b=seB0Y1qTbhsSdSQg/7JJLg8NkE/Jr9qfvcNL1StiwQTncDsg5D7jtsapnfbkv9S/r Mta/CBiK4A8kN1z7yaDMgSX0EPwscXDqmTZQX6wn+9FqsMp3t/bJF6vPq6m7ETxoPK syQO23Kl9aRHHIVg9PTWbqObXHK5n6RAr0Q0tXEDdMnbt2yofc2WqTzPpfh/3hF48Q 7ZLOaot+ghcA5zuaj4UNHjUwYjs7bB3nVA8qcrJLkTcdoUhPpWv4pqpuLV2BjPkya8 +YY3f4PtR6hhOqEttR829apXZ3Kzxq5VViV3EASaS6FZWhhJhYwSa6W8lD4gsiQIhP sqZglZHTgmatQ== From: "Rob Herring (Arm)" To: Nathan Chancellor , Nicolas Schier , Catalin Marinas , Will Deacon Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [RFC PATCH] kbuild: Support directory targets for building DTBs Date: Thu, 13 Nov 2025 16:59:51 -0600 Message-ID: <20251113225952.867138-1-robh@kernel.org> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251113_150004_588314_1B3B5783 X-CRM114-Status: GOOD ( 13.19 ) 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 It is useful to be able to build all the DTBs for a vendor. One can list all the .dts files in a directory and convert those to %.dtb targets, but that doesn't work for base+overlay DTB targets. Adding the dts subdirectory is straight-forward, but building the DTBs should only happen for certain targets (dtbs, dtbs_check, %.dtb, %.dtbo, and the directory target(s)). The 'scripts_dtc' rule doesn't really depend on 'dt_binding_schemas', but the directory target only depends on 'scripts' which depends on 'scripts_dtc'. Signed-off-by: Rob Herring (Arm) --- RFC because only arm64 converted ATM. I don't really like looking at MAKECMDGOALS, but that's the only way I could come up with that works. Maybe someone knows a better way. --- Makefile | 2 +- arch/arm64/Kbuild | 2 ++ scripts/Makefile.dtbs | 3 +++ 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 17cfa11ca716..85018d461575 100644 --- a/Makefile +++ b/Makefile @@ -1494,7 +1494,7 @@ export CHECK_DTBS=y endif ifneq ($(CHECK_DTBS),) -dtbs_prepare: dt_binding_schemas +scripts_dtc: dt_binding_schemas endif dtbs_check: dtbs diff --git a/arch/arm64/Kbuild b/arch/arm64/Kbuild index 5bfbf7d79c99..9e9820af48c9 100644 --- a/arch/arm64/Kbuild +++ b/arch/arm64/Kbuild @@ -5,5 +5,7 @@ obj-$(CONFIG_XEN) += xen/ obj-$(subst m,y,$(CONFIG_HYPERV)) += hyperv/ obj-$(CONFIG_CRYPTO) += crypto/ +subdir-y += boot/dts + # for cleaning subdir- += boot diff --git a/scripts/Makefile.dtbs b/scripts/Makefile.dtbs index 2d321b813600..4d0d164df275 100644 --- a/scripts/Makefile.dtbs +++ b/scripts/Makefile.dtbs @@ -14,7 +14,10 @@ dtb-y := $(addprefix $(obj)/, $(dtb-y)) multi-dtb-y := $(addprefix $(obj)/, $(multi-dtb-y)) real-dtb-y := $(addprefix $(obj)/, $(real-dtb-y)) +ifneq ($(findstring /dts/,$(MAKECMDGOALS))$(findstring dtb,$(MAKECMDGOALS)),) always-y += $(dtb-y) +endif + targets += $(real-dtb-y) # dtbs-list -- 2.51.0