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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19BCFC433F5 for ; Wed, 13 Apr 2022 20:54:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237045AbiDMU5D (ORCPT ); Wed, 13 Apr 2022 16:57:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236230AbiDMU5B (ORCPT ); Wed, 13 Apr 2022 16:57:01 -0400 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 800F4220E0; Wed, 13 Apr 2022 13:54:38 -0700 (PDT) Received: by mail-pj1-x1033.google.com with SMTP id s14-20020a17090a880e00b001caaf6d3dd1so7363978pjn.3; Wed, 13 Apr 2022 13:54:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=Z8n2FKlH4PPLZudd5wmQXBKFzCBNjhBZWi9v/kIPikk=; b=SapZ8FRGWZ38OHiXjH2V0nZ1xZ+fof7DG0rpw+atdv7R6rTyBDgBymXUCrK00dZoqS UHt7b3BsHtsPUvAV6WzBP18RF7n2S8Yd5L85WtoATnLc9tk4XuBC9GNzARrQdgxLzTYQ 5br+Ik1swXuR2oVyTa8oXHNgHpjlQCBsC5N5KRMMLLTQ/3tBpI+SK6+UtoaPE/2BmC1z JwLOIjv6BWN9FzDqcV6QJuA1NpPyKuwKlEuDNH1eq3IKKGR0e1gHPKSt3mVQk5NGOdsQ AqvIETui/UCK2K5epA8zLO20vOQbAmyctvQYlxv4Vbl9/iqS1cB8U9kNHRwQ4ocfr05v 1GOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=Z8n2FKlH4PPLZudd5wmQXBKFzCBNjhBZWi9v/kIPikk=; b=5XhGibGud4At2iW/M7HR7vziRTatsVDPiaeXpxYIFJ+CMG4PdhOJzJOeAXKLj5CQ/7 +g6xtrRxpzrQkbN44AoQi4gS4dvypO4wB2cRiBcnu5R0Nf786EmQewnxV5f0mjkxmPhx JtQrsmG4IrCu9o3jEYQtJOPLgXIvjrF+Nrf+ZKc1Qp+fr72Kq7xMsNFcb1qZNnjKzspR hdCK1YDy3S/Cg7icL6kXV4Sw831e0ulpkjbM7MWQz4fDYOW3g4qM4t31rnT1R1ANkSx+ S5w4EanAARCHxEBUvbyRwwGOnL2e35CU9yoU5nkQzaJm6+3BXTMc4k23R6JqYJSTqap3 yX4A== X-Gm-Message-State: AOAM530iJv4kuEBKAsEtZkS/od7QqxoCQjaZ2+KPugdsqP51AJORleQe DEv3S7sK/q6Ae1nsewVnqWM= X-Google-Smtp-Source: ABdhPJz9zFqadNRA+ndtin3mKhcwMF1jk+93aKdbtcYAcws109E/nP5a7ElcKU6Bf/j8DS2xCdRhlw== X-Received: by 2002:a17:902:8644:b0:153:9f01:2090 with SMTP id y4-20020a170902864400b001539f012090mr43303158plt.101.1649883277874; Wed, 13 Apr 2022 13:54:37 -0700 (PDT) Received: from [172.30.1.44] ([14.32.163.5]) by smtp.gmail.com with ESMTPSA id l4-20020a056a0016c400b004f79504ef9csm43549529pfc.3.2022.04.13.13.54.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 13 Apr 2022 13:54:37 -0700 (PDT) Message-ID: <924e2208-d939-0243-9780-ae1b8cbd2c49@gmail.com> Date: Thu, 14 Apr 2022 05:54:31 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH v2 1/2] dt-bindings: devfreq: mediatek: Add mtk cci devfreq dt-bindings Content-Language: en-US To: Krzysztof Kozlowski , Johnson Wang , cw00.choi@samsung.com, krzk+dt@kernel.org, robh+dt@kernel.org, kyungmin.park@samsung.com Cc: khilman@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, jia-wei.chang@mediatek.com, Project_Global_Chrome_Upstream_Group@mediatek.com References: <20220408052150.22536-1-johnson.wang@mediatek.com> <20220408052150.22536-2-johnson.wang@mediatek.com> <855d7daa-45d1-d6d8-32bd-51778cf58392@linaro.org> <39152c86-ca11-2792-6b25-ae55ffb47b09@linaro.org> From: Chanwoo Choi In-Reply-To: <39152c86-ca11-2792-6b25-ae55ffb47b09@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 22. 4. 12. 18:17, Krzysztof Kozlowski wrote: > On 11/04/2022 14:10, Johnson Wang wrote: >>> Also please put it in the "interconnect" directory. >>> >> >> I don't really know about "interconnect". >> However, it looks like a Linux framework about data transfer and "NoC". >> >> While this cci driver is more like a power managment which is >> responsible for adjusting voltages and frequencies. >> In my opinion, "devfreq" should be more suitable. >> >> Please correct me if my understanding is wrong. > > devfreq is a Linux mechanism, not a real device/hardware. We try to put > the bindings in directories/subsystems matching the hardware, therefore > devfreq is not appropriate. > > Whether interconnect - or other subsystem - is appropriate, I am not > sure. To me this looks exactly like bus bandwidth management and you > even use "interconnect" in several places. So interconnect matches. I think that 'Documentation/devicetree/bindings/arm/mediatek' is proper. -- Best Regards, Samsung Electronics Chanwoo Choi