[v2,2/7] DT: phy.txt: Add mdio-integrated-mux property

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

Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
---
 Documentation/devicetree/bindings/net/mdio-mux.txt | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

On Tue, May 31, 2016 at 07:06:36PM +0530, Pramod Kumar wrote:
> This property is used by integrated MDIO multiplexer
> which has bus selection and mdio transaction generation logic,
> integrated inside.
> 
> Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
> ---
>  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
> 
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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:
> > This property is used by integrated MDIO multiplexer
> > which has bus selection and mdio transaction generation logic,
> > integrated inside.
> > 
> > Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
> > ---
> >  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
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