Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752823AbcJJNTn (ORCPT ); Mon, 10 Oct 2016 09:19:43 -0400 Received: from mail-oi0-f67.google.com ([209.85.218.67]:35203 "EHLO mail-oi0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752516AbcJJNSn (ORCPT ); Mon, 10 Oct 2016 09:18:43 -0400 Date: Mon, 10 Oct 2016 08:18:41 -0500 From: Rob Herring To: Mugunthan V N Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mark Rutland , Tony Lindgren , Russell King , Florian Fainelli , David Miller , Sekhar Nori Subject: Re: [PATCH v3 1/4] net: phy: dp83867: Add documentation for optional impedance control Message-ID: <20161010131841.GA8391@rob-hp-laptop> References: <20161006051355.15947-1-mugunthanvnm@ti.com> <20161006051355.15947-2-mugunthanvnm@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161006051355.15947-2-mugunthanvnm@ti.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1538 Lines: 41 On Thu, Oct 06, 2016 at 10:43:52AM +0530, Mugunthan V N wrote: > Add documention of ti,impedance-control which can be used to Needs updating. > correct MAC impedance mismatch using phy extended registers. > > Signed-off-by: Mugunthan V N > --- > Documentation/devicetree/bindings/net/ti,dp83867.txt | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt > index 5d21141..85bf945 100644 > --- a/Documentation/devicetree/bindings/net/ti,dp83867.txt > +++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt > @@ -9,6 +9,18 @@ Required properties: > - ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h > for applicable values > > +Optional property: > + - ti,min-output-impedance - MAC Interface Impedance control to set > + the programmable output impedance to > + minimum value (35 ohms). > + - ti,max-output-impedance - MAC Interface Impedance control to set > + the programmable output impedance to > + maximum value (70 ohms). Define what are valid range of values for these. > + > +Note: ti,min-output-impedance and ti,max-output-impedance are mutually > + exclusive. When both properties are present ti,max-output-impedance > + takes precedence. > + > Default child nodes are standard Ethernet PHY device > nodes as described in Documentation/devicetree/bindings/net/phy.txt > > -- > 2.10.0.372.g6fe1b14 >