Re: [PATCH v2 2/7] DT: phy.txt: Add mdio-integrated-mux property
flat view
From: Rob Herring <robh@kernel.org>
Date: 2016-06-02 23:27:09
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linux-arm-kernel, linux-devicetree, lkml
On Tue, May 31, 2016 at 07:06:36PM +0530, Pramod Kumar wrote:
quoted hunk ↗ jump to hunk
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.
You don't appear to be using this. When would you?
+- 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