Re: [PATCH v2 2/7] DT: phy.txt: Add mdio-integrated-mux property
From: Andrew Lunn <andrew@lunn.ch>
Date: 2016-06-03 00:46:45
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linux-arm-kernel, linux-devicetree, lkml
On Thu, Jun 02, 2016 at 06:27:03PM -0500, Rob Herring wrote:
On Tue, May 31, 2016 at 07:06:36PM +0530, Pramod Kumar wrote:quoted
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?
He is moving it to optional. The mdio-mux-mmio and mdio-mux-gpio do however use it, which follow this binding. Andrew