From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 30 Jul 2018 15:25:04 +0200 (CEST) Received: from vps0.lunn.ch ([185.16.172.187]:56197 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S23993041AbeG3NZAqlv5D (ORCPT ); Mon, 30 Jul 2018 15:25:00 +0200 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) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 65252 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: andrew@lunn.ch Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips > 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