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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 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 A2EB7C433EF for ; Wed, 13 Apr 2022 20:55:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id: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; 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charset="us-ascii"; Format="flowed" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.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 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek 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 DD089C433EF for ; Wed, 13 Apr 2022 20:55:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id: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; 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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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220413_135440_284757_E5D30830 X-CRM114-Status: GOOD ( 13.47 ) 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: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel