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 7B990C4332F for ; Thu, 15 Dec 2022 10:13:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230037AbiLOKNO (ORCPT ); Thu, 15 Dec 2022 05:13:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34306 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229797AbiLOKNM (ORCPT ); Thu, 15 Dec 2022 05:13:12 -0500 Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19E8626AE5 for ; Thu, 15 Dec 2022 02:13:11 -0800 (PST) Received: by mail-lj1-x229.google.com with SMTP id x11so9426172ljh.7 for ; Thu, 15 Dec 2022 02:13:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=Dq2vrlwDc/pcOx3EDWN16MaZnUyWNNZ9wxctRH/iUDc=; b=pziXf/ZboIPanNuGpPFrAu5JQ0BCZ8SnHV17yorcCLrhXmfacq5tX11/0sgoHfGYlF kpxWnkSOCoeIpVi2MnLGGwMeJVfrKDFDnuXsAnZxMZuQBjpdASMRMCMAcEBlbn4JqLmA 14xp2UVTVuTkLEBkrYTpyOPPWP4taThbcEGRnTPfgyh7BS8TrihwFHjCarJ0C8s23iO/ 5aB2GPzTf8PCZQGo6fYDO3jKsB94fBVPRZwJGnYOUumgt7mJ71VIyEJfBfawWHr0YjWK MDi/X9o1ChqBmXDN1Sjfh2N7IFi23BvXm8aKA7voJ4NKNPXS3LNOApvDj3+jxim2pXdg t8Uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Dq2vrlwDc/pcOx3EDWN16MaZnUyWNNZ9wxctRH/iUDc=; b=Lw6w6KWvRHx/OMpOSKeWMW54AYzBnzYLAOYQGqvBFih+SnHQRcc4pOQFmkJjIQ/sRJ zNQOb87l0FdJ2TCo06FQsDRvf6Nbxac5Ko2Or0WeC4eAwDE8zYnj8Vn14MyZgJlN3UAY zYXSLgCdWgDoeDfXuG/wF8u+x07dIU5JzV4vB27nrnphlkKxV3Ib4w5o+lyakAdTdsl5 phHJ+KvVIw7udRXYM4A951b9gWxdlkv7ySJ2f06AEPk0ntxQ95piXRSQuzcKP/X2Mp+P 9xPLofpXElu/pmkfsCmfpcy3pfkg8xgoRWU8BFcADj7q0/qHGIXXuS4wg+AW4Whn1o0C apjA== X-Gm-Message-State: ANoB5pmk7GJ1fUvoPb9BBwoPZ1/Y0aPbn6z67pu78Unb4+YIRVakd/7i eQvjujUw0mWdSkTtav3nSNbDnw== X-Google-Smtp-Source: AA0mqf6PbJFqvC7fn8BReEsGcPP5B3CQXctlxPM/fe7Aziu8TpWLzMvyBQYrVMoYVwP8mybNQM31Vw== X-Received: by 2002:a05:651c:3c1:b0:27a:3eeb:66c4 with SMTP id f1-20020a05651c03c100b0027a3eeb66c4mr5065199ljp.26.1671099189459; Thu, 15 Dec 2022 02:13:09 -0800 (PST) Received: from [192.168.0.20] (088156142067.dynamic-2-waw-k-3-2-0.vectranet.pl. [88.156.142.67]) by smtp.gmail.com with ESMTPSA id p7-20020a2eb7c7000000b0027c1395ca13sm478167ljo.41.2022.12.15.02.13.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Dec 2022 02:13:09 -0800 (PST) Message-ID: <035e9326-d507-2930-d1ab-22b95af035f8@linaro.org> Date: Thu, 15 Dec 2022 11:13:07 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.1 Subject: Re: [PATCH net] arm64: dts: imx8dxl: Disable hibernation mode of AR8031 for EQOS Content-Language: en-US To: wei.fang@nxp.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, Frank.Li@nxp.com, shenwei.wang@nxp.com, xiaoning.wang@nxp.com Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20221215093627.956417-1-wei.fang@nxp.com> From: Krzysztof Kozlowski In-Reply-To: <20221215093627.956417-1-wei.fang@nxp.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 15/12/2022 10:36, wei.fang@nxp.com wrote: > From: Wei Fang > > The hibernation mode of AR8031 PHY defaults to be enabled after hardware > reset. When the cable is unplugged, the PHY will enter hibernation mode > after about 10 senconds and the PHY clocks will be stopped to save > power. However, due to the design of EQOS, the mac needs the RX_CLK of > PHY for software reset to complete. Otherwise the software reset of EQOS > will be failed and do not work correctly. The only way is to disable > hibernation mode of AR8031 PHY for EQOS, the "qca,disable-hibernation-mode" > property is used for this purpose and has already been submitted to the > upstream, for more details please refer to the below link: > https://lore.kernel.org/netdev/20220818030054.1010660-2-wei.fang@nxp.com/ This is not a patch for net-next as you indicate in the subject. DTS patches go via SoC platform maintainers. Best regards, Krzysztof