From mboxrd@z Thu Jan 1 00:00:00 1970 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 928BE642 for ; Thu, 14 Dec 2023 02:22:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="g5fmfBnw" 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> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231128200219.226038-1-aford173@gmail.com> 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!