From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (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 27523372EDE for ; Thu, 3 Sep 2026 22:59:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788476368; cv=none; b=GKwD0fY5ExTA24mJNF0ODLazqGLVzgfuwOcjtNGm9XgeBg75tBQVOke6MkQs4NCp0yObMX6LzeW3WOzbgqr+uS+9qw07HDlXMy9IGFnwTtXh+dcC881ZLmimowFYHu4FNEc9RaL3bk4MV5WSU8HcUiKd88xaekAMVCavEkpkZCY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788476368; c=relaxed/simple; bh=q0PEkNH4X+PaMAyot1IOtz3LQ1vAi3SlCfuAqTtRk8k=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=P+SGBO26PEVK8IIg2KHvDP2uOq0BWLyiIbyJ/6sjzFN9NrDrzvXiEZMkeQXFiRkEnlpB0YgW4y23iB2q2Js4rjzr2iXcQCe7J6yoRgNwxqSau4rTeCdOmQ9BEOOo0COm/3pukUX1jKw2QfbcwY7rjFlD4QyRVLRgHWGfGpn/W3A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.221.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-wr1-f51.google.com with SMTP id ffacd0b85a97d-48589798dbbso91372f8f.3 for ; Thu, 03 Sep 2026 15:59:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788476364; x=1789081164; 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=gUDONbWsQf4g8On4R7HSZLyPEP705AHSMo8bYRBit5E=; b=YZnAHI9AJM2CCKgnbmGrD1Sk6VOVeyfgGPK8v5gKdc0zuBgfOYM/kmE5WhOIxCMoU/ HBRLm2CxYy/ePjm1UrDBerxf9ItlXCnsb2bPdKq5f+At16pcmeTHA+HhngNce5s2JYkV S5seBY3FOEB50eQS19NIu6u/lZ6kS+hOJwbxlKb9pp1ZISAx5GPHiWGKqjypFYOXfic4 utOts4mHwc5KImuI15CJ+zB1O+59k6kxmWV7YTZBltFVhWyZgTdbIxiMS273xs4KhAxV AZ5tdKwD7m4QveeCJ8cmvwUlpCcKz7DI+uhaU8vmHwoJtLzBB8vQQTz3jcd6FbVAbu6d iaZg== X-Forwarded-Encrypted: i=1; AKwUvBzsbJ1RjFA/XNnmC4LS1NMKGrvDk4CwpBVOzLwANOb8Rz52f+2XYDopHqBGAh0PVC+5nm1Dw2LjOb8=@vger.kernel.org X-Gm-Message-State: AFuF++kU5q/EBQNH9IJOdp2ztoHcIuHnVTdKZyNQ3NQy8n3UDHNy5AOK fqpji7pVmPl/PuVr166yXTDJtgjmVaRCSfDyiuZRboOE14LN5ERlglLu X-Gm-Gg: AYBFou0nOPu7Ua9csnaGK55MK0K5jbKwuvzsw1vP/vJ32tWURwu0LXxSNczKYrPKW4v NF9v7JomjT/Tov3NHbbi0UzzQEWxFA7izoK14xooEERiRgssEu34oEgi1Bi+BMfo3ii3DFhIxTR 9GsNnlS6YWKbJRGd17h/8/3sewjLZHvb4OvWuKL9T+pWBum6XBojQFSVFqOELUTYe0wht7aF+z+ zYMTPsKkWaTASERTzvUdb1HSuWZsSrQrva+LK3EVEVZifCbif/wuS85uJGb6PbDgK+dMB2NF8Ei Wi+CezoWOvK2plSMyezrVOwBTIyCvv4MbomSToiCikU3mZxiMOTyQpzq17Sk3494MWQNiz8dJyo 7dV/MYBqeoF42eXXULqjzZ6fJD8h6w2SzAz0KNP75d7FGfHJavs9GnKZWzyo+MPxV6r+XD9/3fp uWdBnHi9WRsJA4U6M+qBxGDvSzPK2pGgya5m1VoN+U5hab98vyHW3XbyL8ZY/k8MtVljxL5Aq82 SVeGSBy+eHoXXhYp04CC8O0CA== X-Received: by 2002:a5d:5f50:0:b0:485:8a46:7059 with SMTP id ffacd0b85a97d-4858a4672acmr372086f8f.43.1788476364181; Thu, 03 Sep 2026 15:59:24 -0700 (PDT) Received: from threads.localdomain ([84.68.179.181]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-485885c5bbdsm1686142f8f.36.2026.09.03.15.59.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Sep 2026 15:59:23 -0700 (PDT) From: Lucas Tanure To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Jerome Brunet , Kevin Hilman , Martin Blumenstingl , Stephen Boyd Cc: Brian Masney , Chuan Liu , Jian Hu , Ronald Claveau , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/4] amlogic: t7: give the MMC bus pipeline clock real consumers Date: Thu, 3 Sep 2026 23:59:17 +0100 Message-ID: <20260903225921.2290441-1-tanure@linux.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The previous series [2] for the intermittent boot hangs on the VIM4 marked sys_ampipe_nand as critical. But as Chuan Liu from Amlogic explained [1], sys_ampipe_nand clocks a pipeline stage that the hardware design inserts in the bus path between the SD/eMMC controllers and the NIC_MATRIX fabric to help timing closure. So the clock has real consumers: reference it from the three MMC controller nodes and drop CLK_IS_CRITICAL instead. The series crosses three trees; patch 4 (clk) must only land after patches 1-3, otherwise the DMA hangs fixed by 43e1705ecab9 come back. [1] https://lore.kernel.org/linux-amlogic/ (RFC: clk: meson: t7: Intermittent boot instability and memory corruption on VIM4) [2] https://lore.kernel.org/linux-amlogic/ (arm64: amlogic: t7: describe the VIM4 supplies and keep the fabric clocks running) Thanks, Lucas Lucas Tanure (4): dt-bindings: mmc: amlogic,meson-gx-mmc: document the T7 pipeline clock mmc: meson-gx: enable the bus pipeline clock on T7 arm64: dts: amlogic: t7: add the pipeline clock to the MMC controllers clk: meson: t7: don't mark sys_ampipe_nand as critical .../bindings/mmc/amlogic,meson-gx-mmc.yaml | 29 ++++++++++++++++++- arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 15 ++++++---- drivers/clk/meson/t7-peripherals.c | 10 +++---- drivers/mmc/host/meson-gx-mmc.c | 21 ++++++++++++++ 4 files changed, 63 insertions(+), 12 deletions(-) -- 2.55.0