From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f181.google.com (mail-dy1-f181.google.com [74.125.82.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CCBAB2C08DC for ; Tue, 28 Apr 2026 22:15:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777414561; cv=none; b=bQOuHnQLPXBAXVW15hQC67LHgDKQg5FcdWEjmLlO032BX9sepbHzPJhdGVsiRQbNpiRxs74qDj9+PQ6Xq+zU3z0M/fGDBre2XgwhWh25/DGA89BJtoaKeo07sEFjtbk5PdukCt6FjBxurXBqg75KUXM+y81MeldERQ35HKpomjg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777414561; c=relaxed/simple; bh=YRXa3SqUBnSgR/YtBhUZuZAmwoEQPel0vDrvl4dz9MA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=R7kjZah38E9WQZ7WbuWixEj96YsZv03lMPV7sgdFckdvBdE8yOoxWfviTEXlK99GiUFLTxOhvAoPYt+Q0KvI8VQLjscVBWDD6boPJxpFrbBevS0MkbYx+CaHSkAI9YkmuXrUOXT8SXGvb4/lxFbtipKyj8ynwhuCT0GRVzASWwU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=MCa0ZedP; arc=none smtp.client-ip=74.125.82.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="MCa0ZedP" Received: by mail-dy1-f181.google.com with SMTP id 5a478bee46e88-2e221a71e19so12019705eec.0 for ; Tue, 28 Apr 2026 15:15:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1777414559; x=1778019359; darn=lists.linux.dev; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=IRuOpUnKlyxobyVU18RBjJjL20LQKeUc7Tn5BEfMoeM=; b=MCa0ZedPnHVe+FTurevCoh0aTTb9mFbNKAUydDlD8GjlmCnaZcmcCvBb6mV/P5N/Xn MXWKGt/iiEJJ62BrfMKdKBKS9e3/jNDsIgrtMxoPd4WmUsX+3X+XBATmJaQWamWUohAd ZaiZyxNuE7p+zRRWqouRCOSBVy4LOHzzlChm8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777414559; x=1778019359; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=IRuOpUnKlyxobyVU18RBjJjL20LQKeUc7Tn5BEfMoeM=; b=Vj1XKbBi+TrGFKjvPy/YfwvWHUs6XDpYRUDNmk1zy6knmpKs/DE3flbYv3gOVizuDD 6Da+8jjypJGO2TcnjfMP1KvzxHHJR3kYpOkTrreOmohCKtwUBYCBFaStKLQ+8m3ZODvR cDnDZL9evf4vB6A1W9lblPQks3cDWHrWCmZviqZ+EB84GcmKirzkSaemiScetNQn+XuZ X+3LbIJdTq97fhZblxRwNo5NAmzB+VPpSuDUSVs/miadtadUkwZ5nhUb8nhpBFO5U5YS oYv0TfNKWmn2rD6MdJ3nNBVCyYx57r/z1AjiobO9i4hgNEqY8E3yEExZJisuC9vdRcV+ RZTQ== X-Forwarded-Encrypted: i=1; AFNElJ+hbKRCEDdMmdFi7LTs3tVIsRcL6LdIDja7+J8Pvb+eOpLYZGeHC6W+S+GEUMP27daB9NCseo50d1I0CI5qFyE=@lists.linux.dev X-Gm-Message-State: AOJu0Yyq8CIayGSpo9d1Bh5VxfyfFMOZyTM4aSMo+hdwCFnaq0g38dzY efAkKoLqRPR6dK+8T2u5pFQmeKnDaoksiX8RjwewcSaqj/FxANZ8O/JjqIZ8TaigF8sWZK6ArJO 2kJM= X-Gm-Gg: AeBDievUUiWiLgEs0vXFpuooCKa0xeLsG9XQWwF4wXBUyZB9ocqoHtCB+dC8lKefxws bBr+Y74Xa4c8KbOrLCg8reMtiPF28Wq3XB5v55wsSKdCZyuq/0nU4g6M/18VdB7vMpo2NmN7lX8 NQ9bx8mshSBkLRxts5XQqgKSFU3vu/yN4a5jNM48p9Wm732I8uSjCHccxuz63UB05yYY1QOJjk7 o5TDBoUe9gLspOWSVYHzeAugGXLAfBFrKwGr2+PRmXS6F3Hw0EASeTDW6OQI9wI9+A7tY9lqURj 3/NG7eTQrUtWNtKgzgnYhX/SKeQVzCNh1Zqam389aPnxQk9hlDe/x+joSJX0Era8pMzFcE6eHhb X1DGScwqJwrh10bSwlmZvQ1SYzFhwjanaOCadvkjNwJYHlIAi9a4Q3YWRHjO3c7uphw/MfRkBRJ aWpw6n+eJyRIbnesVAhfadfIHoPyg96ZGhFKmybDL9f13AwBpJAYe51qBSM36rMfNFesOW89Uy X-Received: by 2002:a05:7301:fa10:b0:2ed:75d:fe40 with SMTP id 5a478bee46e88-2ed0a084038mr2613645eec.15.1777414558981; Tue, 28 Apr 2026 15:15:58 -0700 (PDT) Received: from localhost ([2a00:79e0:2e7c:8:4ff5:9607:c7e5:48f3]) by smtp.gmail.com with UTF8SMTPSA id 5a478bee46e88-2ed1c070523sm162156eec.19.2026.04.28.15.15.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Apr 2026 15:15:58 -0700 (PDT) Date: Tue, 28 Apr 2026 15:15:55 -0700 From: Brian Norris To: Julius Werner Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , Heiko Stuebner , Matthias Brugger , AngeloGioacchino Del Regno , Bjorn Andersson , Konrad Dybcio , devicetree@vger.kernel.org, Doug Anderson , linux-arm-kernel@lists.infradead.org, Tzung-Bi Shih , chrome-platform@lists.linux.dev, linux-rockchip@lists.infradead.org, Alim Akhtar , cros-qcom-dts-watchers@chromium.org, linux-arm-msm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/7] dts: Add /firmware/#{address,size}-cells to Chromium-based DTs Message-ID: References: <20260428200712.2660635-1-briannorris@chromium.org> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Apr 28, 2026 at 02:43:21PM -0700, Julius Werner wrote: > > I reviewed Depthcharge code history and found that this problematic > > bootloader behavior dates back to at least 2014, with the Tegra/Nyan > > device. Older devices may have similar DTB structures, but I'm not sure > > if they have the same address-cells problems. In any case, these changes > > shouldn't hurt even if a device was not affected. > > I can confirm that Nyan was the first Arm device shipping with > depthcharge. Note that the Exynos devices are all older and shipped > with an old fork of U-Boot that probably handled this very differently > (I believe they had `/firmware/chromeos` but not `/firmware/coreboot`, > so they wouldn't have had a `reg` node and should need no `ranges`). OK, so that makes patch 4 unnecessary: [PATCH 4/7] ARM: dts: samsung: Add #{address,size}-cells to Chromium-based /firmware If I respin this, I can drop it. Or if it otherwise looks good, presumably folks can just skip patch 4. Thanks, Brian