From nobody Sat Oct 4 14:12:51 2025 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 A69ED1FFC41; Sat, 16 Aug 2025 05:54:19 +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=1755323660; cv=none; b=IG7yBvLox28e2tQ26hEftPbPyyYBDKG1zmLdQADMvRooDH2FLWSEGADYV70F38HT2TNUpoIjNFPqaoVqXHvdkVdtwMjjX5l7grxtUl8bBhVP8Mld3hSzsdy95xDWTIKrY7isjhT9w6dRciBXWL6ncXnuETOjWBArNK1TiHM0j7E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755323660; c=relaxed/simple; bh=v9/DprQXu1Orp8O2tW51C5gJxOsix4kY869zpymYn20=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kavr93jh7K4JqjwEX0+l99ZEJMEycHWQK29T4Oso19x8RE3FykY3RsMujB8JF1uFkD5ChTW39IaQ3ALcy6X+00XXxZvODO0Shc7/Zy8gZxZYWjm2Blla6oJb7jIzmzMprS7pyB9HiCF/gGytQeaE9uSsrMMIOTJanOM/XnFL7i0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RKXGWhuf; 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="RKXGWhuf" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3B851C4CEFC; Sat, 16 Aug 2025 05:54:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755323659; bh=v9/DprQXu1Orp8O2tW51C5gJxOsix4kY869zpymYn20=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=RKXGWhufXinkH7S7ODTw2OU/BXCIQyjsaO83N16UgK4XRGbdNKIdLwvlJURE1FOY6 aTcT3ak3405nBvlDIHBuzSkBkrma/ddOeZ49zYL53ChGZwtU6NwDZ9zt7erwZ/7wUG ydY6heDuAuaDjtWZfyFQrWIPD4E5gpdFXO/ebAVbAxKsTHkk8SXggeskgjltRoORfU ZgLs0tGXGDU17sjdvhReiUnQJDnoz2Kgbp8LVndEBsosWartPcDoEcsF0oefPcpwln 0yRXuMcSqPMQqnFoKuI3FQ8JVBAKtNqBkms6ZfXle/kAzZt9XfZT/zB1JtZCZvJOJc 1IyOSCXPbAxmg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3378ACA0EE9; Sat, 16 Aug 2025 05:54:19 +0000 (UTC) From: Aaron Kling via B4 Relay Date: Sat, 16 Aug 2025 00:53:37 -0500 Subject: [PATCH 5/5] arm64: tegra: Limit max cpu frequency on P3450 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250816-tegra210-speedo-v1-5-a981360adc27@gmail.com> References: <20250816-tegra210-speedo-v1-0-a981360adc27@gmail.com> In-Reply-To: <20250816-tegra210-speedo-v1-0-a981360adc27@gmail.com> To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , Joseph Lo , Peter De Schrijver , Prashant Gaikwad Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Thierry Reding , Aaron Kling X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1755323658; l=935; i=webgeek1234@gmail.com; s=20250217; h=from:subject:message-id; bh=JtR2frb8U61WYYSqhxHsZ+WqeNipPuKmeW1w+OFmzpU=; b=c8aF1tlFVKvuMAgjpH17Vx+W6YJ9ly6+2UZTmDmo879riiX6BemOb25Mah5RxcSAtHIDCI+VW kPtnx+v5hAcB7G6R9kog0SaaaP/PtAG4t6pc175XEY1HjM4RniK+1dA X-Developer-Key: i=webgeek1234@gmail.com; a=ed25519; pk=TQwd6q26txw7bkK7B8qtI/kcAohZc7bHHGSD7domdrU= X-Endpoint-Received: by B4 Relay for webgeek1234@gmail.com/20250217 with auth_id=342 X-Original-From: Aaron Kling Reply-To: webgeek1234@gmail.com From: Aaron Kling P3450's cpu is only rated for 1.4 GHz while the CVB table it uses tries to scale to 1.5 GHz. Set an appropriate limit on the maximum scaling frequency. Signed-off-by: Aaron Kling --- arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm6= 4/boot/dts/nvidia/tegra210-p3450-0000.dts index ec0e84cb83ef9bf8f0e52e2958db33666813917c..10f878d3f50815d1f0297d15669= 048ab9cad73ee 100644 --- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts @@ -594,6 +594,7 @@ clock@70110000 { nvidia,droop-ctrl =3D <0x00000f00>; nvidia,force-mode =3D <1>; nvidia,sample-rate =3D <25000>; + nvidia,dfll-max-freq =3D <1479000000>; =20 nvidia,pwm-min-microvolts =3D <708000>; nvidia,pwm-period-nanoseconds =3D <2500>; /* 2.5us */ --=20 2.50.1