Thread (13 messages) 13 messages, 2 authors, 2016-05-31
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[PATCH 2/7] DT: phy.txt: Add mdio-integrated-mux property

From: Pramod Kumar <hidden>
Date: 2016-05-30 07:10:43
Also in: linux-devicetree, lkml, netdev
Subsystem: ethernet phy library, networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers: Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

This property is used by integrated MDIO multiplexer
which has bus selection and mdio transaction generation logic,
integrated inside.

Signed-off-by: Pramod Kumar <redacted>
---
 Documentation/devicetree/bindings/net/mdio-mux.txt | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/net/mdio-mux.txt b/Documentation/devicetree/bindings/net/mdio-mux.txt
index 491f5bd..b5ad83e 100644
--- a/Documentation/devicetree/bindings/net/mdio-mux.txt
+++ b/Documentation/devicetree/bindings/net/mdio-mux.txt
@@ -5,13 +5,20 @@ 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:
-- mdio-parent-bus : phandle to the parent MDIO bus.
 - #address-cells = <1>;
 - #size-cells = <0>;
 
 Optional properties:
+- mdio-parent-bus : phandle to the parent MDIO bus. Should be used
+		if parent mdio bus is not part of multiplexer.
+- mdio-integrated-mux: boolean property indicateing that the hardware
+		is an integrated multiplex supporting muxed bus selection
+		and MDIO transaction logic generation.
 - Other properties specific to the multiplexer/switch hardware.
 
+Note: one of mdio-parent-bus and mdio-integrated-mux is mandatory to
+get parent bus regsitered.
+
 Required properties for child nodes:
 - #address-cells = <1>;
 - #size-cells = <0>;
-- 
1.9.1
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