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 EEFA6FD3758 for ; Wed, 25 Feb 2026 12:44:30 +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=do0BN02JpxbtxKX+wWJ7Osy1fAw9wO/zuPc7l6zseOM=; b=KUZCqwgzVhkFZehP/bZGVi4TTl gz9M5VtUMAHUWeOIzwn/B/3MqR2x+8GJKVscRK4lEC8UQklrxRNe38qR2m7yag8DjQfAgO+blLQ1I ZdkHFCMWYv8wXjANFNUezyYeZC/F1A3sZo9nW3JQYnNqkAH2edWmFECw3FHGc2lqfOB6ZJ9xxLF5B HOb9ac7VSqL0Kp/fbUUnfviru2NultVyqUM6fIwWgBMi2hyZtbOo1X0B2IMgu4bYSm7S906kr8unO zIzM5tqQW5N1DnuIOLE0SvyqDilPni7M0XDJGnsFcVvlSVbR8/maig539CD2ERibRCSL9k6+cTTp9 c7NvNdvw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvEFd-000000041KY-1FRB; Wed, 25 Feb 2026 12:44:25 +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 1vvEFa-000000041Jx-1VP8; Wed, 25 Feb 2026 12:44:23 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1772023459; bh=wJo7H+wg7oWjDPXBu3O5+/hGWpnIf4Wz8/+O3JhSsoY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ROxU34RDm7sR9Vf1z2KVIJOAc33DQRkColUGHO9bPXNdfSXDKCWB+kgKzU/2LahbC IN2jKNzQGcZbLJ9PVmjr3InHvPCLUq/KKnrb8n5HYQg5Lh5ftnWAzx8chNslc9RTVq NfzXDc5kK9IQcM/6uZoFCAQoTrm9pGb9fLjUgJ8kRqEL6oY5uDdn+XkRWCqK7eyZk6 eO4ja1rhXmf0aTJhPhhqnL3lckGI/QJKVaTWxkIXtFVzIVhdEgGWpqM9a6bQGuxz/F ghh74A4oAgJgKSFzLwI/sXuUDRZkWBTEhNID/9IlYsvGoFNAeXsmUakRKmQeXcQJBb 0tJf+Pq55HDKA== 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 AEEBE17E012E; Wed, 25 Feb 2026 13:44:18 +0100 (CET) Message-ID: <821f0078-9d4d-4548-ae6f-5f43cf5bcd6d@collabora.com> Date: Wed, 25 Feb 2026 13:44:18 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 22/23] scsi: ufs: mediatek: Remove undocumented "clk-scale-up-vcore-min" To: =?UTF-8?B?UGV0ZXIgV2FuZyAo546L5L+h5Y+LKQ==?= , "chu.stanley@gmail.com" , "robh@kernel.org" , =?UTF-8?B?Q2h1bmZlbmcgWXVuICjkupHmmKXls7Ap?= , "kishon@kernel.org" , "James.Bottomley@HansenPartnership.com" , "bvanassche@acm.org" , "neil.armstrong@linaro.org" , "conor+dt@kernel.org" , =?UTF-8?B?Q2hhb3RpYW4gSmluZyAo5LqV5pyd5aSpKQ==?= , "lgirdwood@gmail.com" , "nicolas.frattaroli@collabora.com" , "vkoul@kernel.org" , "krzk+dt@kernel.org" , "p.zabel@pengutronix.de" , "alim.akhtar@samsung.com" , "matthias.bgg@gmail.com" , "avri.altman@wdc.com" , "martin.petersen@oracle.com" , "broonie@kernel.org" Cc: "linux-scsi@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-phy@lists.infradead.org" , "linux-mediatek@lists.infradead.org" , Louis-Alexis Eyraud , "kernel@collabora.com" References: <20260216-mt8196-ufs-v7-0-b5f2907c6da7@collabora.com> <20260216-mt8196-ufs-v7-22-b5f2907c6da7@collabora.com> From: AngeloGioacchino Del Regno Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260225_044422_595476_DAB89A6D X-CRM114-Status: GOOD ( 13.62 ) 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 25/02/26 11:37, Peter Wang (王信友) ha scritto: > On Mon, 2026-02-16 at 14:37 +0100, Nicolas Frattaroli wrote: >> The MediaTek UFS driver contains support for an undocumented, >> non-vendor-prefixed u32 property named "clk-scale-up-vcore-min". >> >> Since it is not part of any binding, and would not pass a bindings >> review in its current form, remove it. >> >> To return this functionality, it needs to be resubmitted in a series >> that also introduces it to the binding, and justifies what it is used >> for. Compatibility with downstream device trees is not a valid >> justification for its existence. >> >> Signed-off-by: Nicolas Frattaroli > > Can MT8196 work on Gear 5 without raising Vcore? > I'm afraid it might cause problems. > Maybe we can add the correct binding for MT8196? > Might cause problems as much as literally on every other MediaTek SoC with the current version of this driver. Besides, the right way of declaring freq<->voltage relationship is with OPP tables, not with custom properties invented out of the blue - and support for OPPs being generic is already supported in UFSHCI, so... moral of the story: As long as the platform is correctly configured in the devicetree, it's going to work without any kind of issues. Regards, Angelo > Thanks > Peter