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 430B0C54E90 for ; Thu, 22 May 2025 15:39:53 +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=RJur6rMZbLMp+2+d4tVcZ4bXNUfqQScMqXSoAVnIT0U=; b=yn+weFHfxxXK4AIx3IRxRfVZ/H dFnOzmcEPM0RbIi/5lmzRdpwQtfAIdKOeJpFNM2SmMlBQYHCuKNsdCTnPry618nkdTCK0aI/gCQFx oL26DiUnjxtm0p2U/GBBwwm9+6qOox1uFahULRZjpFtNZpPhT7eUEVsKlAYOeqFitrtujzy68X40b 4TkhNjljluQzRk8AgC9Lg8QJedcwyP4yDuhPjDmQGID50oCz/uATWajb8KKYVg4UebqiFrk1FElW5 c5TQgsoN/ZfIyDIxLcjlxSYHVbtKRlc/P1i9cD4D36pKDvug2N/5tAi8Wb288FNmp0hoSUFoKlwX4 OMTZBW1g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uI81Q-00000001Sut-1IVK; Thu, 22 May 2025 15:39:52 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uI7ZW-00000001OYh-2B0j; Thu, 22 May 2025 15:11:03 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id C3C0D5C6075; Thu, 22 May 2025 15:08:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E4E38C4CEE4; Thu, 22 May 2025 15:10:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747926661; bh=uJG6Jesy9D0JDKrfcqVhvbfKdi/yDrnCTcz3eC5EWHc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=fT79k9IZmS41Fg9K74ACV1wFXdLWWeQDKL2DpebkYumi+rwUuXcKZQrLx8Xw/p/xM Mo7gnV8T6vH7T1Esp4yK8nmlzmzSOWeTrsyX+hGJJ5ZjUsZ4LFTK9XmeOmM+qFsJbN e/EJBtVrcYQoJUACAsxAgLD/W8d2BxdMKH3d0YWtosQIoRqIRF5azt/dqmmhwGTZOx dE879aJmNOmPbVUMyGlCULowe2BMPa6+GIqjMdckcyezdybuxZLXVa27F9LvYJz2fA 0w9xfsY/sVWTZwNNukHngEEIoJvZzT0MFZa6BsN1BF2uI++Qn1HxWMCYGpdXrx6Q0e eNFf9BM+TeMEQ== Message-ID: Date: Thu, 22 May 2025 17:10:56 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] soc: mediatek: Add MT8196 VMM driver support To: "Nancy.Lin" , Chun-Kuang Hu , Liam Girdwood , Rob Herring , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno Cc: Mark Brown , Conor Dooley , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Project_Global_Chrome_Upstream_Group@mediatek.com, jason-jh.lin@mediatek.com, singo.chang@mediatek.com, paul-pl.chen@mediatek.com References: <20250522150426.3418225-1-nancy.lin@mediatek.com> <20250522150426.3418225-3-nancy.lin@mediatek.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250522_081102_650386_C6481935 X-CRM114-Status: GOOD ( 22.35 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 22/05/2025 17:03, Nancy.Lin wrote: > From: Nancy Lin > > Add a driver for the MediaTek MT8196 VMM (Vcore for MultiMedia) > controller, which acts as the main power supplier for multimedia power > domains such as display, video encode, and video decode on MediaTek SoCs. > > The VMM controller provides virtual regulators for multimedia IPs and > coordinates with the hardware common clock framework (hwccf) and the > Video Companioin Processor (VCP) to manage power domains. The driver > uses a hardware voter through HWCCF to notify the VCP to turn on or > off VMM-related bucks. > > Signed-off-by: Nancy Lin > --- > drivers/soc/mediatek/Kconfig | 12 + > drivers/soc/mediatek/Makefile | 1 + > drivers/soc/mediatek/mtk-vmm-drv.c | 471 +++++++++++++++++++++++++++++ > 3 files changed, 484 insertions(+) > create mode 100644 drivers/soc/mediatek/mtk-vmm-drv.c > > diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig > index d7293977f06e..4db4a0876083 100644 > --- a/drivers/soc/mediatek/Kconfig > +++ b/drivers/soc/mediatek/Kconfig > @@ -69,6 +69,18 @@ config MTK_MMSYS > Say yes here to add support for the MediaTek Multimedia > Subsystem (MMSYS). > > +config MTK_VMM > + tristate "MediaTek VMM driver" > + help > + Say Y here to enable support for the MediaTek VMM (Vcore for > + MultiMedia) controller, which acts as the main power supplier > + for multimedia power domains such as display, video encode and > + decode on MediaTek SoCs. The VMM controller provides virtual > + regulators for multimedia IPs and coordinates with the hardware > + common clock framework (hwccf) and the Video Companion Processor > + (VCP) to manage power domains. The VMM driver uses hardware voter > + through hwccf to notify VCP to turn on/off VMM-related bucks. > + > config MTK_SVS > tristate "MediaTek Smart Voltage Scaling(SVS)" > depends on NVMEM_MTK_EFUSE && NVMEM > diff --git a/drivers/soc/mediatek/Makefile b/drivers/soc/mediatek/Makefile > index 0665573e3c4b..2b2071614ac4 100644 > --- a/drivers/soc/mediatek/Makefile > +++ b/drivers/soc/mediatek/Makefile > @@ -6,6 +6,7 @@ obj-$(CONFIG_MTK_INFRACFG) += mtk-infracfg.o > obj-$(CONFIG_MTK_PMIC_WRAP) += mtk-pmic-wrap.o > obj-$(CONFIG_MTK_REGULATOR_COUPLER) += mtk-regulator-coupler.o > obj-$(CONFIG_MTK_MMSYS) += mtk-mmsys.o > +obj-$(CONFIG_MTK_VMM) += mtk-vmm-drv.o > obj-$(CONFIG_MTK_MMSYS) += mtk-mutex.o > obj-$(CONFIG_MTK_SVS) += mtk-svs.o > obj-$(CONFIG_MTK_SOCINFO) += mtk-socinfo.o > diff --git a/drivers/soc/mediatek/mtk-vmm-drv.c b/drivers/soc/mediatek/mtk-vmm-drv.c > new file mode 100644 > index 000000000000..de4ceb7d59fa > --- /dev/null > +++ b/drivers/soc/mediatek/mtk-vmm-drv.c > @@ -0,0 +1,471 @@ > +// SPDX-License-Identifier: (GPL-2.0 OR MIT) > +/* > + * Copyright (c) 2025 MediaTek Inc. > + * Author: Yunfei Dong > + */ > + > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#if IS_ENABLED(CONFIG_MTK_VCP_RPROC) And that's the proof you send some sort of downstream code. This does not exist. > +#include > +#include > +#endif > + > +#define mtk_vmm_dbg(dev, fmt, args...) \ > + dev_dbg(dev, "[vmm] %s(%d): " fmt "\n", __func__, __LINE__, ##args) No, you do not get your own debug code. NAK. This is nowhere close to upstream code. Don't send us downstream patterns please. Best regards, Krzysztof