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 84DC7C4332F for ; Fri, 21 Oct 2022 12:50:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229519AbiJUMud (ORCPT ); Fri, 21 Oct 2022 08:50:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229558AbiJUMub (ORCPT ); Fri, 21 Oct 2022 08:50:31 -0400 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B5D8E32EC1; Fri, 21 Oct 2022 05:50:29 -0700 (PDT) Received: by mail-pl1-x62e.google.com with SMTP id d24so2269572pls.4; Fri, 21 Oct 2022 05:50:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=0KlGUTvUZl89L8eZO3gvANACbFJz3GB1qo5LaPEgyIY=; b=gmYJEfCux9XE2yl97cPgtCIDDQKosLHOMgL8kKLEcnGRi4HI8ZWQvmKUKbaxoTREH4 l5KvNT9c1qFjO3wNM3vdLmw9zynWL1jksJnmV/ao2ncyxcMn8U4rNZJCPfAb4kBz93qV 5QbpC/rMmZKSYhURoQTSbtYxzYcR/XlFr15MvrC1TbFW0FM5/TkF8B+2EfSo15+cqi/R Ckzt91lQC5hTgYTyTW2ETBURgTaHgthCx4vy4QEZWm9xsHC+ydRbiHsQrybArlCFeNAJ BPw5AHDyCOkJVjCbeHxctg/TQ3ncEETR4nlOMAloTiPr8K+SCPRY6FCa0KS6PZo5FOx/ DSdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=0KlGUTvUZl89L8eZO3gvANACbFJz3GB1qo5LaPEgyIY=; b=3YEf64LAaYo9iGH4A3u691Ub3A6vJxVy9Rghti8aS6xhmzk+K/OnRE0aGbhPpit5sd EPwh8vxhEAksPTWKpNa8hh8tP4/GaTK7+tgZtxx53cWoi+ifa5IN+pqw0YTj1DjxvtqL txg5Aku+BbDxBuJyeobZ5h+jUR8Q9ITzr/BDgCzT2iQrhwAr6mj6IBKKse1OfUUMujyl ND+qTYPolBDoHz9UE5qZS1lTH8u/B4eYmJLp3c0RK/AOz2cYsfmkWSI7z1GCX9GybRjQ 1/qK8vFnTxlLuYLX8fAwqKzJok+gERBS085WmHMJsATGULPdq4mNvlNK/Beaio4OFrrq 1IZA== X-Gm-Message-State: ACrzQf0wivyTgKMmqjrH7B7WYkYeCS9YP9R1SJWJHqhO/kD7/Pcjw8d1 IihgZ2Qt3mwzSEG2ug77RqM= X-Google-Smtp-Source: AMsMyM5VtbQVLrxlDDH0TECkFcm7zJxpX3ZGD4GUkkz9eckNYZa8aAhB98yUWjsRw19TL45h4Y4/3w== X-Received: by 2002:a17:903:11c7:b0:178:af17:e93e with SMTP id q7-20020a17090311c700b00178af17e93emr19100722plh.78.1666356629150; Fri, 21 Oct 2022 05:50:29 -0700 (PDT) Received: from hoboy.vegasvil.org ([2601:640:8200:33:e2d5:5eff:fea5:802f]) by smtp.gmail.com with ESMTPSA id x2-20020a170902a38200b00177ff4019d9sm14701153pla.274.2022.10.21.05.50.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Oct 2022 05:50:28 -0700 (PDT) Date: Fri, 21 Oct 2022 05:50:26 -0700 From: Richard Cochran To: Sarath Babu Naidu Gaddam Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, yangbo.lu@nxp.com, radhey.shyam.pandey@amd.com, anirudha.sarangi@amd.com, harini.katakam@amd.com, git@amd.com Subject: Re: [PATCH net-next V2] dt-bindings: net: ethernet-controller: Add ptp-hardware-clock Message-ID: References: <20221021054111.25852-1-sarath.babu.naidu.gaddam@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221021054111.25852-1-sarath.babu.naidu.gaddam@amd.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Thu, Oct 20, 2022 at 11:41:10PM -0600, Sarath Babu Naidu Gaddam wrote: > There is currently no standard property to pass PTP device index > information to ethernet driver when they are independent. > > ptp-hardware-clock property will contain phandle to PTP clock node. > > Freescale driver currently has this implementation but it will be > good to agree on a generic (optional) property name to link to PTP > phandle to Ethernet node. In future or any current ethernet driver > wants to use this method of reading the PHC index,they can simply use > this generic name and point their own PTP clock node, instead of > creating separate property names in each ethernet driver DT node. > > axiethernet driver uses this method when PTP support is integrated. > > Example: > fman0: fman@1a00000 { > ptp-hardware-clock = <&ptp_timer0>; > } > > ptp_timer0: ptp-timer@1afe000 { > compatible = "fsl,fman-ptp-timer"; > reg = <0x0 0x1afe000 0x0 0x1000>; > } > > Signed-off-by: Sarath Babu Naidu Gaddam Acked-by: Richard Cochran