From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm2-f1.google.com (mail-wm2-f1.google.com [74.125.225.129]) (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 7453F463B9B for ; Wed, 12 Aug 2026 15:40:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.225.129 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786549222; cv=none; b=ewc3NSd8s4FXxmd7PZYRoX960g2Eka5SPKWbqEeIzKOVWbqgq2JVz5Kxor3MJR3wUg9cmB1mxppekayGlGm7VqZI0CJ0ddu4XEcYD/FgpYvc1Lf1nsfAfG1iCP8sMZsBgh/xHmyeEL0OGHndTkeGvEwgjWVk9wt8znCvdjZ2/zo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786549222; c=relaxed/simple; bh=26UWdpaQDzgnBTtxHw4Cp6AynYdIEUwCzz6rHSHePsY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=gSLDGPFiSDcZoIETQaydEiHf8kaBpc4jbDSBKvZcTdPdRrXlC41dqTUBsbEZDU1M5KmvCa3cdBjO6iecRxKVfERHuHPzxZn2swN0TeRxvz+uRZu6VPGkJoWUzZXsgCS3yAUmGSKjl6eQI1OtEMZGSZj6dNEV5A2Sdfezxh9dBt8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ferrisoft.com; spf=pass smtp.mailfrom=ferrisoft.com; dkim=pass (2048-bit key) header.d=ferrisoft-com.20251104.gappssmtp.com header.i=@ferrisoft-com.20251104.gappssmtp.com header.b=Ocgb9iKF; arc=none smtp.client-ip=74.125.225.129 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ferrisoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ferrisoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ferrisoft-com.20251104.gappssmtp.com header.i=@ferrisoft-com.20251104.gappssmtp.com header.b="Ocgb9iKF" Received: by mail-wm2-f1.google.com with SMTP id 5b1f17b1804b1-492367f3094so4316365e9.0 for ; Wed, 12 Aug 2026 08:40:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ferrisoft-com.20251104.gappssmtp.com; s=20251104; t=1786549217; x=1787154017; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=QbLyQ0GmRGBKkuWyBUwDxJtHBvWoKJlB6ZFlIuJiUYY=; b=Ocgb9iKFmD8e5BThUWh5Plr3stK6EIYGFourjDEUPuLuVoyv7VbOioP5lqoeV7OuxR e3kMlVui4n5BzV8fI57aSmTYcXrjBw5dAiabcJHQ76apTNtdZvM3EfUoOyucKyynG+ZM ygjwqJ8DtfnAiXZJhVPbFE4AamAaZwlRFrTLkecPc//UXFtUbQY0Hs0Nk6UgtziJOIso 6DceMsfIHj1eK/bZ9+PgDW21FV5nEbkXI6nZ8C7EVQt2dQB2j4mciHBvmVpLDOZ9h9B6 QsG6yrFmpdnx9UndH4KQ7gcNcSkuBWn6aopWf24p9NqJx+CH84zY83dsp3EaY3wJOGnT 9NPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786549217; x=1787154017; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=QbLyQ0GmRGBKkuWyBUwDxJtHBvWoKJlB6ZFlIuJiUYY=; b=SwbdXPfPTNZm0KoHHh3b+AqOxLRwRLmUr0L3na5m0qkT842iTm2hBFJftv+Fy+AMf8 d4H1PjTMsQSmjPljzq1TzPInS1wuaL1lWqIgmYONZ2e3UPv57+Fzsnjlqa1IoeM3fj74 fUjvzahDXgQvG0yL+dwITQHgRj1kqYBiAOg6LG7JiknkECCUTMk+n5g2gJudkHBJFNWT iCnUij1fG2vrqNLJ1r/qqQk4g1HRMXCfWfw2pSpySYAeMD4b+1pzUR0EixAcuMdFYrw6 XOMP+eKt9RpjA27q0o0auv2rPbK0/lOnGJwPoBR1ZHIC8oThYYkTIpNINeFkJhfKS0Z8 uTZw== X-Forwarded-Encrypted: i=1; AHgh+RqjuSWyAfLTZeP2NnSDpTNZEE2iXIbO9d2MtrFhWPjhNUPz+wQaVuUfEgWirR2U+LOBxiQQmNcPYnRy@vger.kernel.org X-Gm-Message-State: AOJu0Yxx5z4eGriS9K5Pw27MSBV0PTo3IaaYnGpJUJb2HPb2F1W2ayuG 1pDR4eopWh7sX8QwjYzzPwEaSwGw6/jPdJ4PkGfuKS7A0cvTDjFSfB+V57u8+MBlfGS/ X-Gm-Gg: AR+sD111eLkHsJc51zXV8+U86TGHenYx97rsue+AOXBU/uFNebkrWWzgumJIPdbdcFm Zs9LJP9VYJNVnKI4u/8CFdFzcpqyFQy9I7d/Rq5oiLlV7QcG4vj4+g++0tqHY0ZHjOdKtxvdpgt 8G8uMsGI3NQZA3EjrjxC9zjSt2yYg+ywfWysthTEUgLAAoqUzY+W0OopYgS8Cc0nFWj+Dl+t2wh N0YalGSOdGdze6n+TVBp4CbxMYiW5RCVlnNfyuo0REk7dTEmPTWQWbIKRItbTcHT5/O1frESBfP +oFvYERFzvTg/oPRfWl0FMJ5HAtuuuPnOryPVec6TSVs5j3FhS9CCIb4BMSO7Ee/6rnisH6UY/6 By0fCTDtsypcZhqLhMWu53pEbWJOo/EBMF5AuoFiZc7Y6hyQ0WGhmbEmAMEy26WXSuM+1/ubdD+ Mi8iib0qHjoUb/lvfn3kl0huKiRC+n/Fg7QFmxmK1Bg99T1n5kXKtVNo4mS6MrRJ/cPAOK+tWb8 EpsIIDudrZyQOdo X-Received: by 2002:a05:600c:8012:b0:493:cc25:85cb with SMTP id 5b1f17b1804b1-4997c12747bmr83471045e9.8.1786549217031; Wed, 12 Aug 2026 08:40:17 -0700 (PDT) Received: from zenbook (45-11-61-69.ip4.greenlan.pl. [45.11.61.69]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4997c93b362sm23296255e9.3.2026.08.12.08.40.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Aug 2026 08:40:16 -0700 (PDT) From: Greg Ociepka To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Krishna Kurapati , Abel Vesa , Wesley Cheng , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: qcom: glymur: Mark USB controllers dma-coherent Date: Wed, 12 Aug 2026 17:40:14 +0200 Message-ID: <20260812154014.123315-1-greg@ferrisoft.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit All five USB controller nodes on Glymur (usb_0, usb_1, usb_2, usb_hs, usb_mp) are missing the dma-coherent property, which Hamoa carries on all of its USB controllers. Krishna Kurapati confirmed the Glymur USB controllers are dma-coherent [1]. Without the property the kernel treats USB DMA buffers as non-coherent and performs cache maintenance on every transfer, which coherent hardware makes redundant. Follow-up to the clock/power/bandwidth votes patch [2], kept separate so the already-reviewed patch stands as is. Tested on an Asus Zenbook A16 (UX3607OA): all controllers enumerate their devices as before and a 64 MiB write plus two O_DIRECT read-backs over USB mass storage produce identical checksums. [1] https://lore.kernel.org/linux-arm-msm/f92cc91e-6e5c-4375-aaa6-f079a165f4b5@oss.qualcomm.com/ [2] https://lore.kernel.org/linux-arm-msm/20260812083522.774711-1-greg@ferrisoft.com/ Fixes: 4eee57dd4df9 ("arm64: dts: qcom: glymur: Add USB related nodes") Signed-off-by: Greg Ociepka Assisted-by: Claude:fable-5 --- arch/arm64/boot/dts/qcom/glymur.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/arch/arm64/boot/dts/qcom/glymur.dtsi +++ b/arch/arm64/boot/dts/qcom/glymur.dtsi @@ -4605,6 +4605,8 @@ usb-role-switch; wakeup-source; + dma-coherent; + status = "disabled"; ports { @@ -4681,6 +4683,8 @@ usb-role-switch; wakeup-source; + dma-coherent; + status = "disabled"; ports { @@ -4757,6 +4761,8 @@ usb-role-switch; wakeup-source; + dma-coherent; + status = "disabled"; ports { @@ -4847,6 +4853,8 @@ usb-role-switch; wakeup-source; + dma-coherent; + status = "disabled"; }; @@ -4919,6 +4927,8 @@ dr_mode = "host"; wakeup-source; + dma-coherent; + status = "disabled"; }; -- 2.50.1