From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E4D14A20 for ; Tue, 11 Jul 2023 12:38:13 +0000 (UTC) Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7591A1736; Tue, 11 Jul 2023 05:37:53 -0700 (PDT) Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36BAmxwL018566; Tue, 11 Jul 2023 14:36:14 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=selector1; bh=iEhiiDAE5VGpzYoUKMDzsWW+FQbM/7CMQsKlEZM++LU=; b=DCavd3BD8Ib/w2kzYs4c7q/cj8Hkq7PqNT4020gfru75qfHko1knOyyxZEvCj7/zjzAt 6J1fd0CgaQqbPifmabIATh76imkZmt7Q31Qo1BTgatMGwdqwh9SPU2EieSAk/E3VPTtR X8O3s4+eYPLC2YnlYAaKjgsO7Sac/c9LlA+wUBDSzAg2um2/Cb4bJHMYdPZGSzRSl7di IyRYDuYEcI4QkkwhiEkkT4RuYMQZkOAayuHOJWfIDEM0oEKF8v1OpMOiXJt0O9gtb59f SRT8HOLyDWYuBURXScMMluBWe7Ovi1D2G6zYZpiwcepM2gghJqH53ZmUIoMvjF1LKlM1 vw== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3rs311t6rv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 11 Jul 2023 14:36:14 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 08ED4100058; Tue, 11 Jul 2023 14:36:13 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 801DF2248B2; Tue, 11 Jul 2023 14:36:12 +0200 (CEST) Received: from [10.201.21.122] (10.201.21.122) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Tue, 11 Jul 2023 14:36:12 +0200 Message-ID: <6fa4ea12-bc7d-4977-8b7e-bfbea2ef2955@foss.st.com> Date: Tue, 11 Jul 2023 14:36:11 +0200 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [PATCH v1] ARM: dts: stm32: prtt1c: Add PoDL PSE regulator nodes Content-Language: en-US To: Oleksij Rempel , Maxime Coquelin , Rob Herring , Krzysztof Kozlowski , =?UTF-8?B?SsOpcsO0bWUgUG91aWxsZXI=?= CC: , , , , , References: <20230323123242.3763673-1-o.rempel@pengutronix.de> From: Alexandre TORGUE In-Reply-To: <20230323123242.3763673-1-o.rempel@pengutronix.de> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.201.21.122] X-ClientProxiedBy: EQNCAS1NODE3.st.com (10.75.129.80) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-11_06,2023-07-11_01,2023-05-22_02 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,NICE_REPLY_A,RCVD_IN_DNSWL_BLOCKED, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Hi Oleksij On 3/23/23 13:32, Oleksij Rempel wrote: > This commit introduces Power over Data Line (PoDL) Power Source > Equipment (PSE) regulator nodes to the PRTT1C devicetree. The addition > of these nodes enables support for PoDL in PRTT1C devices, allowing > power delivery and data transmission over a single twisted pair. > > The new PoDL PSE regulator nodes provide voltage capability information > of the current board design, which can be used as a hint for system > administrators when configuring and managing power settings. This > update enhances the versatility and simplifies the power management of > PRTT1C devices while ensuring compatibility with connected Powered > Devices (PDs). > > After applying this patch, the power delivery can be controlled from > user space with a patched [1] ethtool version using the following commands: > ethtool --set-pse t1l2 podl-pse-admin-control enable > to enable power delivery, and > ethtool --show-pse t1l2 > to display the PoDL PSE settings. > > By integrating PoDL PSE support into the PRTT1C devicetree, users can > benefit from streamlined power and data connections in their > deployments, improving overall system efficiency and reducing cabling > complexity. > > [1] https://lore.kernel.org/all/20230317093024.1051999-1-o.rempel@pengutronix.de/ > > Signed-off-by: Oleksij Rempel > --- Applied on stm32-next. cheers Alex