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Date: Wed, 20 Jul 2016 20:26:12 +0530 From: Mugunthan V N <mugunthanvnm@...com> To: <netdev@...r.kernel.org> CC: Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Tony Lindgren <tony@...mide.com>, Russell King <linux@...linux.org.uk>, Florian Fainelli <f.fainelli@...il.com>, "David S . Miller" <davem@...emloft.net>, Sekhar Nori <nsekhar@...com>, <devicetree@...r.kernel.org>, <linux-omap@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, Mugunthan V N <mugunthanvnm@...com> Subject: [net-next PATCH 1/3] net: phy: dp83867: Add documentation for optional impedance control Add documention of ti,impedance-control which can be used to correct MAC impedance mismatch using phy extended registers. Signed-off-by: Mugunthan V N <mugunthanvnm@...com> --- Documentation/devicetree/bindings/net/ti,dp83867.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt index 5d21141..531ea3c5 100644 --- a/Documentation/devicetree/bindings/net/ti,dp83867.txt +++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt @@ -9,6 +9,13 @@ Required properties: - ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h for applicable values +Optional property: + - ti,impedance-control - MAC Interface Impedance control to vary the + output impedance with an approximate range + from 35-70 ohms in 32 steps. Value range can + be 0x0 to 0x1f. Lowest impedance value is + 0x1f and highest impedance being 0x0. + Default child nodes are standard Ethernet PHY device nodes as described in Documentation/devicetree/bindings/net/phy.txt -- 2.9.2.368.g08bb350
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