From mboxrd@z Thu Jan 1 00:00:00 1970 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 730ED2C326B; Mon, 29 Dec 2025 20:39:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767040766; cv=none; b=iYWUYAO4oDVGCzYpz6wDvW3n8x/RO1WhDSzUIiGMrZ3ATr2WTFNdTprRZXi518RWPpaxw1L/rWM+HxGLjhZwDPHGGZnPE882AZRJvA5QWH/Afg0RDf8ulwhyJN0m8rVkEY4/03E7AvAHu5o5L1DyKu1Kx2AjlwRXPBJiOEcWW0Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767040766; c=relaxed/simple; bh=8HiZDGiFI1Ej64HDHXl6T0blCYp6fT2OhJ3cyCelRKU=; h=From:Date:Content-Type:MIME-Version:Cc:To:In-Reply-To:References: Message-Id:Subject; b=nnoD7c8OyNm8HT3k8+ct5TQRMJz3ZkGR4wZ1hUWgT3dQyzjtnuKcOwwIJQCQKoRbyr9DM3/xpjUV+pLOheKqRWeytC9/DMtJW7CRHL0LiY3AHr3c+/9QwtL7YmrudkNBuLkvfjCaGKvVwKb3ppI/+AK+dEYyoUQyaWwEK5rKbbQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PA5VvINc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="PA5VvINc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E217CC4CEF7; Mon, 29 Dec 2025 20:39:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767040766; bh=8HiZDGiFI1Ej64HDHXl6T0blCYp6fT2OhJ3cyCelRKU=; h=From:Date:Cc:To:In-Reply-To:References:Subject:From; b=PA5VvINckjhy4V91bcU3EZ2+mTR8tSVR3Oy4ve5TUmnE2AMeiRMtdvDAN3oKV/6ch SuS/pYBISnOn7ZPurKX/hWny5LPJas8W3FvgZEGUpilFYsnutsmShIsmX2BkHAe5ES 1F5Fyz6pxmMMjQF4xLk6QnutvUf7oEDIIDQn5XncAUWL/e3abzDMx2XX2xuh4rfnka WmiFghSe8RSjd3JRT+okRsJGWZp0PmCNskgXDFaTJ83UJNg00RTsZCiaxQ6ZEvHt9K uvW/u8A1vJO7P63IhpHuGuwRRa0ZBsec+ObGO8pOhg5egOisAnHY2vExM7zrvckxDi FvH9guXxu1dGA== From: Rob Herring Date: Mon, 29 Dec 2025 14:39:25 -0600 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, jserv@ccns.ncku.edu.tw, conor+dt@kernel.org, eleanor15x@gmail.com, linux-arm-kernel@lists.infradead.org, linusw@kernel.org, krzk+dt@kernel.org, arnd@arndb.de, devicetree@vger.kernel.org To: Kuan-Wei Chiu In-Reply-To: <20251225173118.580110-1-visitorckw@gmail.com> References: <20251225173118.580110-1-visitorckw@gmail.com> Message-Id: <176703895443.2172504.7231951665641312391.robh@kernel.org> Subject: Re: [PATCH v2] ARM: dts: integrator: Fix DMA ranges mismatch warning on IM-PD1 On Thu, 25 Dec 2025 17:31:18 +0000, Kuan-Wei Chiu wrote: > When compiling the device tree for the Integrator/AP with IM-PD1, the > following warning is observed regarding the display controller node: > > arch/arm/boot/dts/arm/integratorap-im-pd1.dts:251.3-14: Warning > (dma_ranges_format): > /bus@c0000000/bus@c0000000/display@1000000:dma-ranges: empty > "dma-ranges" property but its #address-cells (2) differs from > /bus@c0000000/bus@c0000000 (1) > > The "dma-ranges" property is intended to describe DMA address > translations for child nodes. However, the only child of the display > controller is a "port" node, which does not perform DMA memory > accesses. > > Since the property is not required for the child node and triggers a > warning due to default address cell mismatch, remove it. > > Fixes: 7bea67a99430 ("ARM: dts: integrator: Fix DMA ranges") > Cc: stable@vger.kernel.org > Signed-off-by: Kuan-Wei Chiu > --- > Changes in v2: > - Switch approach to remove the unused "dma-ranges" property instead of > adding "#address-cells" and "#size-cells". > > arch/arm/boot/dts/arm/integratorap-im-pd1.dts | 1 - > 1 file changed, 1 deletion(-) > My bot found new DTB warnings on the .dts files added or changed in this series. Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings are fixed by another series. Ultimately, it is up to the platform maintainer whether these warnings are acceptable or not. No need to reply unless the platform maintainer has comments. If you already ran DT checks and didn't see these error(s), then make sure dt-schema is up to date: pip3 install dtschema --upgrade This patch series was applied (using b4) to base: Base: attempting to guess base-commit... Base: tags/next-20251219 (exact match) Base: tags/next-20251219 (use --merge-base to override) If this is not the correct base, please add 'base-commit' tag (or use b4 which does this automatically) New warnings running 'make CHECK_DTBS=y for arch/arm/boot/dts/arm/' for 20251225173118.580110-1-visitorckw@gmail.com: arch/arm/boot/dts/arm/integratorap-im-pd1.dtb: display@1000000 (arm,pl110): 'port@0' does not match any of the regexes: '^pinctrl-[0-9]+$' from schema $id: http://devicetree.org/schemas/display/arm,pl11x.yaml