Re: [RFC PATCH net v2 2/3] dt: bindings: add ethernet phy eee-disable-advert option documentation
From: Andrew Lunn
Date: Mon Nov 21 2016 - 11:47:42 EST
> What I did not realize when doing this patch for the realtek driver is
> that there is already 6 valid modes defined in the kernel
> #define MDIO_EEE_100TX MDIO_AN_EEE_ADV_100TX /*
> 100TX EEE cap */
> #define MDIO_EEE_1000T MDIO_AN_EEE_ADV_1000T /*
> 1000T EEE cap */
> #define MDIO_EEE_10GT 0x0008 /* 10GT EEE cap */
> #define MDIO_EEE_1000KX 0x0010 /* 1000KX EEE cap
> #define MDIO_EEE_10GKX4 0x0020 /* 10G KX4 EEE cap
> #define MDIO_EEE_10GKR 0x0040 /* 10G KR EEE cap
> I took care of only 2 in the case of realtek.c since it only support
> MDIO_EEE_100TX and MDIO_EEE_1000T.
> Defining a property for each is certainly doable but it does not look
> very nice either. If it extends in the future, it will get even more
> messier, especially if you want to disable everything.
> What do you think about keeping a single mask value but use the define
> above in the DT ? It would be more readable than hex and easy to
> extend, don't you think ?
> These defines are already part of the uapi so I guess we can use those
> in the DT bindings ?
I don't think they are accessible from the dtc include path. You will
need to make a copy, in include/dt-bindings/net/phy.h
But yes, using these defines is a good idea.