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 A7421C64EC4 for ; Fri, 3 Mar 2023 17:32:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230244AbjCCRcz (ORCPT ); Fri, 3 Mar 2023 12:32:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230228AbjCCRcx (ORCPT ); Fri, 3 Mar 2023 12:32:53 -0500 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C4C3E8 for ; Fri, 3 Mar 2023 09:32:52 -0800 (PST) Received: by mail-pj1-x102f.google.com with SMTP id m20-20020a17090ab79400b00239d8e182efso6857385pjr.5 for ; Fri, 03 Mar 2023 09:32:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1677864772; 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=UIyBJEio9TpOtZtepkPZ9bgnJeq9AcTeG3hlFo5N1dc=; b=S6HTin3l9KQQI5C0WsyUs2LwKwomyh176y9RzW0oP8RrYyiEKj2g9PuK75u1BGuVy4 h5IVrNDC2vjGh/nFWRM6Ocr0uNp61URDRGGkm1Sw6BH970oeTCAHNViHXNLQQUaakxUg QRrx/lwnP8W3ZX5gI+i2/j3x5v0T4TrvZaS+1O1otR5u2F+SMhN92b6ulbx9ePMfUa5a XqGKV2qsBkj9rdm4/oVYKHifUg9xJaLJyQjK1zyBwZEZrnxhOQ4PgrAMAV5k3/PkukR/ qCd3/1woPUavg+p09ub05Ila+9mnoNPvUURk73wT4fs1zUd8nRENCp3MuVlRfM7Xsxlk LeRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1677864772; 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=UIyBJEio9TpOtZtepkPZ9bgnJeq9AcTeG3hlFo5N1dc=; b=WYPttqNUBnS4cLvA2ASJBXgrk3+d7idms1e4955LC+zSC4UGXeMycf/O9eldQvJPwC NBWBXqVbs/IVfdDWKZaIIoh/Y57262M8+SIoI65ndoICY292DZASnfal0LHiAZ//Hj3l yjr5FkF2/OzSVBh7nsvYqkYtGefuXMaL3mhcMeJnybHpTq+vl5P2Rgda/vlBs5IgjSfj 6jokCFq35jegmSj0jEXnw/g6hHc4fTVy+zmvCwJVbJuriNc8wkrwTDjD2LcTSpafle9k fbhQE3ykVmV6b13gZey/qvrEw6vz9jGoviH4aAxvBGdXP2kaXdsOAJaNqvSECKuuggx2 n9cQ== X-Gm-Message-State: AO0yUKV9jOL0yNOV5XRHzzQOu5kDnJmQ633MEy/gghQg6+3HUj9PwLUQ Wcwfhu6hhfjbNEx3hlBLrzOB/qgUM5M= X-Google-Smtp-Source: AK7set80ImkuBRn64GvXJe3d3GjeSewsc7yLnbu46RTyo0pLoKxLeHHj89W4f6oMulW3SQTnK2eYOQ== X-Received: by 2002:a05:6a20:6906:b0:cd:2c0a:6ec0 with SMTP id q6-20020a056a20690600b000cd2c0a6ec0mr2664170pzj.3.1677864771917; Fri, 03 Mar 2023 09:32:51 -0800 (PST) Received: from hoboy.vegasvil.org ([2601:640:8200:33:e2d5:5eff:fea5:802f]) by smtp.gmail.com with ESMTPSA id c16-20020a62e810000000b0056bc5ad4862sm1926579pfi.28.2023.03.03.09.32.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Mar 2023 09:32:51 -0800 (PST) Date: Fri, 3 Mar 2023 09:32:49 -0800 From: Richard Cochran To: Andrew Lunn Cc: "Russell King (Oracle)" , Michael Walle , davem@davemloft.net, f.fainelli@gmail.com, hkallweit1@gmail.com, kory.maincent@bootlin.com, kuba@kernel.org, maxime.chevallier@bootlin.com, netdev@vger.kernel.org, thomas.petazzoni@bootlin.com Subject: Re: [PATCH RFC net-next] net: phy: add Marvell PHY PTP support [multicast/DSA issues] Message-ID: References: <20230303102005.442331-1-michael@walle.cc> <0c0df176-1fbb-43d5-9fb0-358b3873f4e0@lunn.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0c0df176-1fbb-43d5-9fb0-358b3873f4e0@lunn.ch> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, Mar 03, 2023 at 05:34:35PM +0100, Andrew Lunn wrote: > > > 4) Some solution to the default choice if there is no DT property. > > > > I thought (4) was what we have been discussing... but the problem > > seems to be that folk want to drill down into the fine detail about > > whether PHY or MAC timestamping is better than the other. > > > > As I've already stated, I doubt DT maintainers will wear having a > > DT property for this, on the grounds that it's very much a software > > control rather than a hardware description. > > We can argue it is describing the hardware. In that hardware blob X > has a better implementation of PTP than hardware blob Y. That could be > because of the basic features of the blob, like resolution, adjustable > clocks, or board specific features, like temperature compensated > crystals, etc. IMO a DTS property is the most user friendly solution, even if it isn't strictly hardware description. Thanks, Richard