From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Daney Subject: Re: [PATCH 2/3] netdev/of/phy: Add MDIO bus multiplexer support. Date: Wed, 14 Sep 2011 21:16:10 -0700 Message-ID: <4E717C0A.5050905@gmail.com> References: <1314820906-14004-1-git-send-email-david.daney@cavium.com> <1314820906-14004-3-git-send-email-david.daney@cavium.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: David Daney , David Daney , linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, "David S. Miller" , netdev@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, ralf@linux-mips.org To: Grant Likely Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 09/14/2011 05:51 PM, Grant Likely wrote: > > > On Aug 31, 2011 2:01 PM, "David Daney" > wrote: > > > > This patch adds a somewhat generic framework for MDIO bus > > multiplexers. It is modeled on the I2C multiplexer. > > > [...] > > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/net/mdio-mux.txt > > @@ -0,0 +1,132 @@ > > +Common MDIO bus multiplexer/switch properties. > > + > > +An MDIO bus multiplexer/switch will have several child busses that are > > +numbered uniquely in a device dependent manner. The nodes for an MDIO > > +bus multiplexer/switch will have one child node for each child bus. > > + > > +Required properties: > > +- parent-bus : phandle to the parent MDIO bus. > > As discussed, I like mdio-parent-bus. > > > + > > +Optional properties: > > +- Other properties specific to the multiplexer/switch hardware. > > + > > +Required properties for child nodes: > > +- #address-cells = <1>; > > +- #size-cells = <0>; > > +- cell-index : The sub-bus number. > > Use reg, not cell-index. That is what it is there for. And add the > appropriate #address/size-cells in the parent. > > I've not reviewed the implementation, but with the changes. I'm okay > with the binding. > Thanks for the prompt reply Grant. I will rework this with the binding changes and send a new version soon. David Daney