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Mon, 16 Dec 2019 09:50:30 +0900 (KST) Received: from [10.113.221.102] (unknown [10.113.221.102]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20191216005029epsmtip22675afefb21a12808597f328abc97c95~gs64cAA_w2795427954epsmtip2h; Mon, 16 Dec 2019 00:50:29 +0000 (GMT) Subject: Re: [RFC PATCH v2 08/11] arm: dts: exynos: Add parents and #interconnect-cells to Exynos4412 From: Chanwoo Choi To: =?UTF-8?B?QXJ0dXIgxZp3aWdvxYQ=?= , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: myungjoo.ham@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, georgi.djakov@linaro.org, leonard.crestez@nxp.com, m.szyprowski@samsung.com, b.zolnierkie@samsung.com, krzk@kernel.org Organization: Samsung Electronics Message-ID: <61a0b84c-9154-81f6-717c-b0b684b98830@samsung.com> Date: Mon, 16 Dec 2019 09:57:05 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Thunderbird/59.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrBJsWRmVeSWpSXmKPExsWy7bCmru61K99iDVqWalvcn9fKaLFxxnpW i/lHzrFaXPn6ns1i+t5NbBaT7k9gsTh/fgO7xYq7H1ktNj2+xmpxedccNovPvUcYLWac38dk sfbIXXaL240r2CxmTH7J5sDvsWlVJ5vHnWt72Dzudx9n8ti8pN5j47sdTB59W1YxenzeJBfA HpVtk5GamJJapJCal5yfkpmXbqvkHRzvHG9qZmCoa2hpYa6kkJeYm2qr5OIToOuWmQN0t5JC WWJOKVAoILG4WEnfzqYov7QkVSEjv7jEVim1ICWnwLJArzgxt7g0L10vOT/XytDAwMgUqDAh O2PvpcmMBbMVKrpeLWVpYGyV7GLk4JAQMJGY3hbXxcjFISSwg1Hi8tNrLBDOJ0aJp2t2skI4 3xglGmYfZ+xi5ATrePVwHxNEYi+jxItlp5khnPeMEjuPb2MCqRIWSJe43vkJzGYT0JLY/+IG G0iRiMB/RonTy1aCzWUWOMYosffOTxaQKn4BRYmrPx6D7eAVsJPonLmGGcRmEVCVWPGsG6xG VCBM4uS2FqgaQYmTM5+AxTkF7CXaFu8Aq2cWEJe49WQ+E4QtL9G8dTbYeRIC+9glJh9+ww7x hIvEuqVT2CBsYYlXx7dAxaUkPr/bCxWvllh58ggbRHMHo8SW/RdYIRLGEvuXTmYChR+zgKbE +l36EGFFiZ2/5zJCLOaTePe1hxUSxLwSHW1CECXKEpcf3GWCsCUlFrd3sk1gVJqF5J1ZSF6Y heSFWQjLFjCyrGIUSy0ozk1PLTYsMESO702M4FStZbqDcco5n0OMAhyMSjy8DtnfYoVYE8uK K3MPMUpwMCuJ8KZqf44V4k1JrKxKLcqPLyrNSS0+xGgKDO2JzFKiyfnAPJJXEm9oamRsbGxh YmhmamioJM7L8eNirJBAemJJanZqakFqEUwfEwenVAMjx/99vLOm9MWFbH15YLqjyCy2c49C N6/ji1qWbfPy7Te23IusuW7XQ8QifompNgR/c6qw2ntnlcgOq4O8201szZ+u1N92R87FXMWo aEWxkGPQN+uJO6wz/m0JYEvu4f1j/6xL6KWb4ro9odHqM4rzlvA4yQjZBfz7aVd6x7K5clGp 4/VvlX5KLMUZiYZazEXFiQA48xwr6wMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrEIsWRmVeSWpSXmKPExsWy7bCSvO61K99iDRZd4bK4P6+V0WLjjPWs FvOPnGO1uPL1PZvF9L2b2Cwm3Z/AYnH+/AZ2ixV3P7JabHp8jdXi8q45bBafe48wWsw4v4/J Yu2Ru+wWtxtXsFnMmPySzYHfY9OqTjaPO9f2sHnc7z7O5LF5Sb3Hxnc7mDz6tqxi9Pi8SS6A PYrLJiU1J7MstUjfLoErY++lyYwFsxUqul4tZWlgbJXsYuTkkBAwkXj1cB8TiC0ksJtR4tYU I4i4pMS0i0eZuxg5gGxhicOHi7sYuYBK3jJKzDvZzApSIyyQLnG98xNYL5uAlsT+FzfYQIpE BP4zSjxsO8YI4jALHGOU+LhiPStE+wdGicVzHzKDtPALKEpc/fGYEcTmFbCT6Jy5BizOIqAq seJZNwuILSoQJrFzyWMmiBpBiZMzn4DFOQXsJdoW7wCrZxZQl/gz7xKULS5x68l8JghbXqJ5 62zmCYzCs5C0z0LSMgtJyywkLQsYWVYxSqYWFOem5xYbFhjlpZbrFSfmFpfmpesl5+duYgTH rJbWDsYTJ+IPMQpwMCrx8Dpkf4sVYk0sK67MPcQowcGsJMKbqv05Vog3JbGyKrUoP76oNCe1 +BCjNAeLkjivfP6xSCGB9MSS1OzU1ILUIpgsEwenVAPjku6G8598Zwdt/vx14t8357YGhF7b 9orhRcMascDwpFOTKtblia67cmhJ9VrdW++TnJe1zqgKuZ9742REh2Cv2Jzmr3x2lXm781Mj ojW+an1zYBPVjT5UXf5SOj1P22fhZqVTfgKrTe93nXI6fdl8Y0DIaiGvJNE1Aat2c0+ZvGL2 puv95mt0lFiKMxINtZiLihMBTBV6KtUCAAA= X-CMS-MailID: 20191216005030epcas1p191ea4419b39728833efab03c75ce42cc X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20190919142329eucas1p299762f99dd55a5d625633ceec84219f9 References: <20190919142236.4071-1-a.swigon@samsung.com> <20190919142236.4071-9-a.swigon@samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Please ignore second reply. It is my mistake to send the duplicate message because of my company firewall issue. Regards, Chanwoo Choi On 12/16/19 9:55 AM, Chanwoo Choi wrote: > Hi, > > On 9/19/19 11:22 PM, Artur Świgoń wrote: >> From: Artur Świgoń >> >> This patch adds two fields to the Exynos4412 DTS: >> - parent: to declare connections between nodes that are not in a >> parent-child relation in devfreq; >> - #interconnect-cells: required by the interconnect framework. >> >> Please note that #interconnect-cells is always zero and node IDs are not >> hardcoded anywhere. The above-mentioned parent-child relation in devfreq >> means that there is a shared power line ('devfreq' property). The 'parent' >> property only signifies an interconnect connection. >> >> Signed-off-by: Artur Świgoń >> --- >> arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 1 + >> arch/arm/boot/dts/exynos4412.dtsi | 9 +++++++++ >> 2 files changed, 10 insertions(+) >> >> diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi >> index ea55f377d17c..bdd61ae86103 100644 >> --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi >> +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi >> @@ -106,6 +106,7 @@ >> &bus_leftbus { >> devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>; >> vdd-supply = <&buck3_reg>; >> + parent = <&bus_dmc>; > > As I mentioned on other patch, > I'm not sure to use 'parent' property for this driver. > If possible, we better to use the standard way like OF graph > in order to make the tree between buses. Except for making > the connection between the buses with 'parent', looks good to me. > >> status = "okay"; >> }; >> >> diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi >> index d20db2dfe8e2..a70a671acacd 100644 >> --- a/arch/arm/boot/dts/exynos4412.dtsi >> +++ b/arch/arm/boot/dts/exynos4412.dtsi >> @@ -390,6 +390,7 @@ >> clocks = <&clock CLK_DIV_DMC>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_dmc_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -398,6 +399,7 @@ >> clocks = <&clock CLK_DIV_ACP>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_acp_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -406,6 +408,7 @@ >> clocks = <&clock CLK_DIV_C2C>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_dmc_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -459,6 +462,7 @@ >> clocks = <&clock CLK_DIV_GDL>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_leftbus_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -467,6 +471,7 @@ >> clocks = <&clock CLK_DIV_GDR>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_leftbus_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -475,6 +480,7 @@ >> clocks = <&clock CLK_ACLK160>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_display_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -483,6 +489,7 @@ >> clocks = <&clock CLK_ACLK133>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_fsys_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -491,6 +498,7 @@ >> clocks = <&clock CLK_ACLK100>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_peri_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> @@ -499,6 +507,7 @@ >> clocks = <&clock CLK_SCLK_MFC>; >> clock-names = "bus"; >> operating-points-v2 = <&bus_leftbus_opp_table>; >> + #interconnect-cells = <0>; >> status = "disabled"; >> }; >> >> > > 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 X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8767AC43603 for ; Mon, 16 Dec 2019 00:50:54 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 48E1A24676 for ; Mon, 16 Dec 2019 00:50:54 +0000 (UTC) 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Exynos4412 From: Chanwoo Choi To: =?UTF-8?B?QXJ0dXIgxZp3aWdvxYQ=?= , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org Organization: Samsung Electronics Message-ID: <61a0b84c-9154-81f6-717c-b0b684b98830@samsung.com> Date: Mon, 16 Dec 2019 09:57:05 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Thunderbird/59.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrBJsWRmVeSWpSXmKPExsWy7bCmru61K99iDVqWalvcn9fKaLFxxnpW i/lHzrFaXPn6ns1i+t5NbBaT7k9gsTh/fgO7xYq7H1ktNj2+xmpxedccNovPvUcYLWac38dk sfbIXXaL240r2CxmTH7J5sDvsWlVJ5vHnWt72Dzudx9n8ti8pN5j47sdTB59W1YxenzeJBfA HpVtk5GamJJapJCal5yfkpmXbqvkHRzvHG9qZmCoa2hpYa6kkJeYm2qr5OIToOuWmQN0t5JC WWJOKVAoILG4WEnfzqYov7QkVSEjv7jEVim1ICWnwLJArzgxt7g0L10vOT/XytDAwMgUqDAh O2PvpcmMBbMVKrpeLWVpYGyV7GLk4JAQMJGY3hbXxcjFISSwg1Hi8tNrLBDOJ0aJp2t2skI4 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20190919142329eucas1p299762f99dd55a5d625633ceec84219f9 References: <20190919142236.4071-1-a.swigon@samsung.com> <20190919142236.4071-9-a.swigon@samsung.com> X-Mailman-Approved-At: Mon, 16 Dec 2019 08:30:48 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: b.zolnierkie@samsung.com, sw0312.kim@samsung.com, krzk@kernel.org, myungjoo.ham@samsung.com, leonard.crestez@nxp.com, georgi.djakov@linaro.org, m.szyprowski@samsung.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" SGksCgpQbGVhc2UgaWdub3JlIHNlY29uZCByZXBseS4gSXQgaXMgbXkgbWlzdGFrZQp0byBzZW5k IHRoZSBkdXBsaWNhdGUgbWVzc2FnZSBiZWNhdXNlIG9mIG15IGNvbXBhbnkgZmlyZXdhbGwgaXNz dWUuCgpSZWdhcmRzLApDaGFud29vIENob2kKCk9uIDEyLzE2LzE5IDk6NTUgQU0sIENoYW53b28g 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