From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH v3 1/4] net: phy: dp83867: Add documentation for optional impedance control Date: Mon, 10 Oct 2016 08:18:41 -0500 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-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <20161006051355.15947-2-mugunthanvnm@ti.com> 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: Mugunthan V N Cc: Mark Rutland , devicetree@vger.kernel.org, Florian Fainelli , Tony Lindgren , netdev@vger.kernel.org, Sekhar Nori , linux-kernel@vger.kernel.org, Russell King , linux-omap@vger.kernel.org, David Miller , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org 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 >