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 A383ECAC5B8 for ; Mon, 6 Oct 2025 09:36:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0CsNh1QO9LTfhssYldvjQJa9MLvQe0v6qstw3MRTV2U=; b=CFCn9esVsBZx8vwVr3AE+tJQhM LqnpnxUEzA4nSxh4RgnvKUWkEAaz/lHbLz/Fxv+yWdYPglU0/M1M6BWzATAxejL6E+bf4oWwuh3vO 3sA7OHP30rPS+actPNQPiJYAhK/P45M5xePMmZYtsK0b7EGJ21IBuqJnNGhfBirZHUXrN9tI+ErQh wTK4wgDTh8tp5pJ3oZJOx2bM3KRz+LA9dl66RJgDJyPeZclblyMcr48sTz38Z3LCbp/pmw08bCf/j TiD5Z7dMQhkYBG0tfAprdHYRnWsuxbGGIbOObz77lYB5t2h8+W50cNOoa5cWaVDxmd6oXtK9lxn/A //9iChKQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v5hdh-0000000HFUU-40c6; Mon, 06 Oct 2025 09:36:17 +0000 Received: from bali.collaboradmins.com ([2a01:4f8:201:9162::2]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v5hde-0000000HFSy-3t8z; Mon, 06 Oct 2025 09:36:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1759743371; bh=Xp3by8t0maP1Vb90Nju6hz9/zSoF5Ht9B7xI4C7ASrY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=oqea8QCyl47tPr2p/I2JBWilB27/dytrdw7oUiy72JMtI+hZdP+/GK6bMH2b1ME3U tBJTqozUMuhy57OsKjw9xE+X2Mn2TK0KFsoxYVqVEPoT8sm3MhgeDQnLL6eHT8KN6P yfxg1uwEWuCeR7B/NKGiy645OImZrboJpCg5VUzChTWyElKansn6MrrDbbzT3Pbmvi 9myQ4DYvltdcxXoVbXZM5kIIDecRP7QVtSNFTJLIZLEzNBlbFZt6m1c0TsshyPYifc Vmb1J6wn5DEuCDQG3hAdm9SOVs6Mcb42/H3Wtw/ACt0oshGypbrkCRrFxmkYeUq1J0 TbpwM/i587E1Q== Received: from [192.168.1.100] (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id C34CF17E0FC2; Mon, 6 Oct 2025 11:36:10 +0200 (CEST) Message-ID: <137811e2-f28e-4605-a6b2-935a0a8b463b@collabora.com> Date: Mon, 6 Oct 2025 11:36:10 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 2/7] dt-bindings: power: Add MT8196 GPU frequency control binding To: Nicolas Frattaroli , Boris Brezillon , Jassi Brar , Chia-I Wu , Chen-Yu Tsai , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , Kees Cook , "Gustavo A. R. Silva" , Ulf Hansson Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hardening@vger.kernel.org, linux-pm@vger.kernel.org References: <20251003-mt8196-gpufreq-v6-0-76498ad61d9e@collabora.com> <20251003-mt8196-gpufreq-v6-2-76498ad61d9e@collabora.com> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: <20251003-mt8196-gpufreq-v6-2-76498ad61d9e@collabora.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251006_023615_141829_72F7FB36 X-CRM114-Status: GOOD ( 10.56 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Il 03/10/25 22:15, Nicolas Frattaroli ha scritto: > On the MT8196 and MT6991 SoCs, the GPU power and frequency is controlled > by some integration logic, referred to as "MFlexGraphics" by MediaTek, > which comes in the form of an embedded controller running > special-purpose firmware. > > This controller takes care of the regulators and PLL clock frequencies > to squeeze the maximum amount of power out of the silicon. > > Add a binding which models it as a power domain. > > Signed-off-by: Nicolas Frattaroli Reviewed-by: AngeloGioacchino Del Regno