From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann 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> References: <1444899934-4754-1-git-send-email-yamada.masahiro@socionext.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Masahiro Yamada Cc: Mark Rutland , devicetree@vger.kernel.org, Russell King , Pawel Moll , Ian Campbell , Linux Kernel Mailing List , Rob Herring , arm@kernel.org, Kumar Gala , linux-arm-kernel List-Id: devicetree@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