[net-next PATCH 1/3] net: phy: dp83867: Add documentation for optional impedance control
From: Mugunthan V N <hidden>
Date: 2016-07-20 14:58:03
Also in:
linux-arm-kernel, linux-devicetree, linux-omap, lkml
Subsystem:
networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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 <redacted> --- 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