From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 51545C54FDF for ; Thu, 30 Jul 2026 08:24:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0DgVaR8xYVF2dHsvSA2JEa4bgtrYv3tYAqWT4kpPvJw=; b=vFdkoRnfvHtL7s 1hwr8JWGkZ6Gg10uoGG13Pu9itdKX2JVoD0gRXIuiOjO914NsJBRc9yKpw5VoDB/XJf+NV7070D9a xutC3C2bYo3Y0DGPPqE/lyckcqU/VeJPK0YZAZFlh2vFMEW32Z6TGAhG8kOdW3gIJMsaoMXKARY5U hve8dZ7/KK+cLduT22Fm5IQJHUbn4g0z5HNvDO6y+zC0pqzTRHNYWUgmyKal7vMGKWgQFAzBnD4Y9 4szHOVLHQHRWIM3rQoK9HY+OhlfT4eBsVTW2kkQch4orWnr2+XakdpYITM/S4knIVEeDXUIozLuz/ OHPz4c2ozKY4cRaXRJ2Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wpM45-00000009qqb-2hwy; Thu, 30 Jul 2026 08:24:29 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wpM44-00000009qqK-1yGw for linux-riscv@lists.infradead.org; Thu, 30 Jul 2026 08:24:28 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 128234073F; Thu, 30 Jul 2026 08:24:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A2851F00A3A; Thu, 30 Jul 2026 08:24:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785399868; bh=tcJa329W3/e6mUiBMBCdmFBaRvkhjOBRJYVoU6ghT5g=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=T52BarienqBSQp1RDkFSz8cteddwXzZFIyji1BBlWcXWtG/f95dqPzuI2LiOnxKTw gYGRtbUKScrl137mLfqJs+D6PmDbeCdeyzXz1cC0B8DWtj2t1MRJEV3ApVSiz9qT71 ipwnwlez/SESwfBCgZqpRZeImxqrUSX3RdNLzdKs1oTEMkoo93GJ5y+M1IYOpG80f8 bCXenr88Zs721qFkCZgSq00N5nED46PN2tUw6bKVjo67hh5tMSc6um5p+dHIk/0Jja /HszVFGCO7fkpxv90QkcwNRRgT6hP7BAy1MkdQG+prk9tneBSMqmc42/66xNr9srE1 hkVrJ8NXVd6Aw== Date: Thu, 30 Jul 2026 08:24:25 +0000 From: Yixun Lan To: Aurelien Jarno Cc: linux-kernel@vger.kernel.org, Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , "open list:RISC-V ARCHITECTURE:Keyword:riscv" , "open list:RISC-V SPACEMIT SoC Support:Keyword:spacemit" Subject: Re: [PATCH 0/6] riscv: dts: spacemit: fix maximum CPU core voltage for K1 boards Message-ID: <20260730082425-GKJ76518@kernel.org> References: <20260729150722.1598630-1-aurelien@aurel32.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260729150722.1598630-1-aurelien@aurel32.net> X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On 17:02 Wed 29 Jul , Aurelien Jarno wrote: > The SpacemiT K1 based boards use the SpacemiT P1 PMIC. The buck1 and > buck2 voltage regulators supply the CPU core voltage. They are > configured with a maximum output voltage of 3.45V, while the highest > operating point requires only 1.050V. This means that a kernel bug, OPP > misconfiguration, or privileged userspace could request a voltage above > the safe operating limit, causing possible permanent CPU damage. > > This patch series set the maximum regulator voltage to 1.050V instead. > There is one patch per board in order to ease backporting to older > kernel versions. > > Aurelien Jarno (6): > riscv: dts: spacemit: k1-bananapi-f3: fix maximum CPU core voltage > riscv: dts: spacemit: k1-milkv-jupiter: fix maximum CPU core voltage > riscv: dts: spacemit: k1-orangepi-rv2: fix maximum CPU core voltage > riscv: dts: spacemit: k1-musepi-pro: fix maximum CPU core voltage > riscv: dts: spacemit: k1-orangepi-r2s: fix maximum CPU core voltage > riscv: dts: spacemit: k1-bananapi-cm6: fix maximum CPU core voltage > > arch/riscv/boot/dts/spacemit/k1-bananapi-cm6.dtsi | 4 ++-- > arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 4 ++-- > arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts | 4 ++-- > arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 4 ++-- > arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts | 4 ++-- > arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts | 4 ++-- > 6 files changed, 12 insertions(+), 12 deletions(-) > Reviewed-by: Yixun Lan -- Yixun Lan (dlan) _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv