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 9A046C4332F for ; Thu, 14 Dec 2023 02:23:27 +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=IdpKKnhd9F5DTuzj46eInW1npGuaRmz0yaAfdSPfSLA=; b=pz6u6WO9zq147a oF/YkOVwDd7A5PZCuuKGgujjxJX6PLDAWr2l0CfP9Hg9lMdm6Ovz2QMiIbFZoNh/EMltpLmqoiMIe oLuMaBuJoYhvEze2qqOxm8ku9P3IGNCFLP9u9uAh2SF0P4WNuMQat1PiDzbH0VM5QjXdGf9qrEUlt ldMlDdISQB0hIXUEzx+E4e7c0lmjZAg5oy3oTkyFZ47cbYNNd1b8D6zFMDqrFcHFOGtu2DbDmQkB1 ZK4JepqFyKbyVq/jpjEGJGdOxYddmAHWCkQAu2VT0yZe6zKE94i32OyVO/tn9zYFPLG9wSKVXJDk3 Czc2dh9CdjmsERNnU5xQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rDbNN-00GVLy-0Z; Thu, 14 Dec 2023 02:23:01 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rDbNK-00GVLF-1P for linux-arm-kernel@lists.infradead.org; Thu, 14 Dec 2023 02:22:59 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by ams.source.kernel.org (Postfix) with ESMTP id E86AFB8203F; Thu, 14 Dec 2023 02:22:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B072EC433C8; Thu, 14 Dec 2023 02:22:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702520576; bh=2dqkUnZ1w5W8BpfqSy59Jzx5XEg6Jju97Zl3wCZcXxQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=g5fmfBnw3u/yd+Ht1gxWaPfmtx7C66PTdnKAGR7naXR5IEZxeYgrrXTKVl1aiUWOQ xt3IdmQuT1bKJ2SbgL9kZirfAVXPudFp7hZrw+G/sRIlZGS+eb+VOksqB6PSXHYfKD oCMWWfSVvyHSa2JAQ9Cg2jurO5i2jyj+GWpdwKb+5dUyMC6jiNzmBpPL+Z1EmrJ04g uTi/v6qoBZoMgSzBBxJRyLd6B0O1K/MQQ7TuXbNvt1U8V/fwBXfOcQ2JncXow9v6EL l1G9WpF7bWXFUTM4VIGDJvgIdo+XLKeYMaFx6S95Rj/NBE8KFS+Ghs/OQyue0kFJ6S HiQirgm9xLPzA== Date: Thu, 14 Dec 2023 10:22:50 +0800 From: Shawn Guo To: Adam Ford Cc: linux-arm-kernel@lists.infradead.org, aford@beaconembedded.com, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Lucas Stach , Frieder Schrempf , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/3] arm64: dts: imx8mm: Reduce GPU to nominal speed Message-ID: <20231214022250.GY270430@dragon> References: <20231128200219.226038-1-aford173@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20231128200219.226038-1-aford173@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231213_182258_609506_313907AC X-CRM114-Status: GOOD ( 11.94 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 28, 2023 at 02:02:16PM -0600, Adam Ford wrote: > When the GPU nodes were added, the GPU_PLL_OUT was configured > for 1000MHz, but this requires the SoC to run in overdrive mode > which requires an elevated voltage operating point. > > Since this may run some boards out of spec, the default clock > should be set to 800MHz for nominal operating mode. Boards > that run at the higher voltage can update their clocks > accordingly. > > Fixes: 4523be8e46be ("arm64: dts: imx8mm: Add GPU nodes for 2D and 3D core") > Signed-off-by: Adam Ford Applied all, thanks! _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel