[PATCH v4 05/12] Documentation: net: phy: Add phy-is-internal binding

David.Wu david.wu at rock-chips.com
Thu Aug 10 03:57:40 PDT 2017

Hi Andrew, Florian

在 2017/8/10 8:20, Andrew Lunn 写道:
> Hi Florian, David.
> I'm happy with the property name. But i think the text needs more
> description. We deal with Ethernet switches with integrated PHYs. Yet
> for us, this property is unneeded.
> Seeing this property means some bit of software needs to ensure the
> internal PHY should be used, when given the choice between an internal
> and external PHY. So i would say something like:
>      If set, indicates that the PHY is integrated into the same
>      physical package as the Ethernet MAC. If needed, muxers should be
>      configured to ensure the (internal) PHY is used. The absence of this
>      property indicates the muxers should be configured so that the
>      external PHY is used.

Are we supposed to replace the words "internal" with "integrated" here?
So we have three kinds of PHY, they are intenal, external and integrated 

> This last part is important. If the bootloader has set the internal
> PHY to be used, you need to reset it. Otherwise we are going to get
> into a mess sometime later and need to add a phy-is-external property.

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