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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT 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 9A7D5FD21E1 for ; Mon, 30 Jul 2018 13:25:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2677620870 for ; Mon, 30 Jul 2018 13:25:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="yvK8Q5rx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2677620870 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lunn.ch Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731760AbeG3PAC (ORCPT ); Mon, 30 Jul 2018 11:00:02 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:50382 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726570AbeG3PAC (ORCPT ); Mon, 30 Jul 2018 11:00:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date; bh=2/jopxJ0a3Xr5McvI9/4v/db/6AbFZh4lrTEwV7FVGg=; b=yvK8Q5rxVzowFxnL1dw2048nnDehg+3tD7VczRCuI59j27Tsu3BQIFQiFzAYyhCmBt/fetQupTzPsXZkMpxPAKjUolm+O3BML9JZA5BB35eMDd8uUHX9X9fFaDWvHwgPqe+R1U8LYPws7ABaMzvFV8p93787ZuaJojPQYW3tEeI=; Received: from andrew by vps0.lunn.ch with local (Exim 4.84_2) (envelope-from ) id 1fk8AD-000810-Uk; Mon, 30 Jul 2018 15:24:41 +0200 Date: Mon, 30 Jul 2018 15:24:41 +0200 From: Andrew Lunn To: Quentin Schulz Cc: alexandre.belloni@bootlin.com, ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, davem@davemloft.net, kishon@ti.com, f.fainelli@gmail.com, linux-mips@linux-mips.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, allan.nielsen@microsemi.com, thomas.petazzoni@bootlin.com Subject: Re: [PATCH 00/10] mscc: ocelot: add support for SerDes muxing configuration Message-ID: <20180730132441.GC13198@lunn.ch> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > The SerDes configuration is in the middle of an address space (HSIO) that > is used to configure some parts in the MAC controller driver, that is why > we need to use a syscon so that we can write to the same address space from > different drivers safely using regmap. Hi Quentin I assume breaking backwards compatibility is not an issue here, since there currently is only one board using the DT binding. But it would be good to give a warning in the cover notes. git bisect will also break for this one particular board. And since these changes are going through different trees, it could be quite a big break. Andrew