From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752661AbbJWULf (ORCPT ); Fri, 23 Oct 2015 16:11:35 -0400 Received: from mout.kundenserver.de ([212.227.17.10]:58287 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752370AbbJWUKt (ORCPT ); Fri, 23 Oct 2015 16:10:49 -0400 From: Arnd Bergmann To: Masahiro Yamada Cc: linux-arm-kernel , arm@kernel.org, Russell King , devicetree@vger.kernel.org, Kumar Gala , Linux Kernel Mailing List , Ian Campbell , Rob Herring , Pawel Moll , Mark Rutland Subject: Re: [PATCH 2/3] ARM: dts: uniphier: add ProXstream2 Vodka board support Date: Fri, 23 Oct 2015 22:10:01 +0200 Message-ID: <4176900.TvBCpZCKl2@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.16.0-10-generic; KDE/4.11.5; x86_64; ; ) In-Reply-To: References: <1444899934-4754-1-git-send-email-yamada.masahiro@socionext.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:vbZtFGokKGaPFeG0mWZ3T8jz0OOD3FSyXSzTas4Z3r203pdXKhB PK4u4B5GZ7NVqPZ/A4b67H1fuHWUXVpkJGwH6WKKlX64i39sD63/26P7qxsl5TFDlGyHFp0 XH2gDifV9vcU8xib5QqDM+x5gdZAeUdbXvhX/iaI0G2mn5pD2seV4olWWsghYKpY1km8N9u g9LK2BmPo6AZobfV0t2oA== X-UI-Out-Filterresults: notjunk:1;V01:K0:75DPS4gErIE=:ZYY18rVYHM4BHK4yDaNrpr JaDJis1gcZugRiuDL5Euj13+K5MAY0mCBptjglg3e1fN12xuBTt6M5hpAwpj66J+wbVF7XPO4 9WgKuMaJeiZweFxI/M/21cwZ47ax8d8lujX3tGu5N61ys/DbnCcjq3pjv5seGR1PzfjVA8uRn Lg5QQj+deuZEmF2qehONfU0bZYqV4o3UQEnwgCwYNrApneen9ihjGy2T8aGWUmAili2HeIIFN 0lSKs9EKe9Fi03N13A+svzUhbaqaGkE2bh5u7LeLvQakjnF0abB2X6RzO4jUmJCgKV0QM4V7c HP5DFTccgfNPJnLW2p/5zvKqFjOEuD1NodU9IRRRaNw8VXZOIUdxZ2cgyQ4ZjqMMQsV2UEt6+ /FpayWfqzCTIR/9ZKposnzYHBK5A9Rio8bPgW6tHZjq7qQ4GfDxkI15Ru1JdPkL9yF85L/hsO uhC5M+C0V57DG7fWeKXluYQFVVAW/FDKSyjrNiAXvIj8QhV7VSAwTSBQj89Cp5wim33+GY4eo gUVMIkKMzmfo2y38mqIXqGSsFrMiaT0xx85/EJSk5Ep/a0Zg+iCwBR/5tK1NHfamohq7UCmWi OMtErGjtnmt/UWPanoSPg0y8vv9Rkr9a4cygkQAC5AHqVzW9HYngSY8tBxS0FricTsy+N7piL PxvL2wLORja3dsWHu2OtljbqmaiLMwmJ8l6u5zZiO3tM/g5F136JjHHnfdVEmhgmdCo4IfMT2 U2gVqVwig9SCWj5p Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 21 October 2015 17:49:12 Masahiro Yamada wrote: > > Right. In-kernel drivers can handle it nicely. > > > > Also, we can write a device tree that specifies device connection > > hierarchy like follows. > > The device names will appear under /sys/ directory and user-land > > applications can check them. > > > > &i2c4 { > > demodulator { > > compatible = "..."; > > > > }; > > }; > > > > &i2c6 { > > hdmi_tx { > > > > compatible = "..."; > > }; > > } > > > > > > I understand that I2C bus number assumption is avoidable, > > but I am still not fully convinced. > > > > Matching /dev/i2c* and the real hardware block ID (this is written in > > the SoC spec book) > > makes things clearer, I think. > > > > > Anyway, this version is unacceptable, right? Sorry for the late reply. I would not call it unacceptable, just a bit unpleasant. We can merge it if you cannot come up with a nicer way to do this. It was a good idea to split to resend the series without this patch, but the replacement to delete the aliases also doesn't look nice. If we can't come up with a better way to do this, I'd suggest you re-send this patch and add a bit more explanation into the changelog as to why you want this to be done in an unusual way. Arnd