On Tuesday 11 February 2014 11:57:46 Mohit KUMAR DCG wrote: > > > Maybe mention that this phy is used inside the spear13xx > > SoC here rather than a standalone phy. > > - Yes, for spear13xx its used internally. Do you think that > it requires to be mentioned here? > We have few prototype boards that uses this as external phy. [adding Lee since he mentioned working on a similar part] I'm a bit confused. Is it actually the same IP block that can be used internally as part of a SoC and as a standalone chip? Since some of the settings of the PHY are controlled through the misc register in case of spear13xx, I assume that part is different on the standalone version. How do you actually select the mode in that case? It would certainly be helpful to explain this somewhere, and the binding might not be the worst place for this. On a related note, the driver in its current shape looks a bit silly since it doesn't contain any of the miphy specific code but only the SoC specific parts (as I suggested you do, so I'm not blaming you :-)) and a multiplexer that switches between the two possible implementations. What is your plan for the future, do you intend to add the actual miphy code soon, or is that something you just want to leave as an option for the future but have no specific plans to do right now? If not, the driver would probably look nicer if it were split into two separate implementations, one for each spear13xx SoC and with a separate set of phy_ops but no multiplexer. The connection to the miphy code (if you want to keep your options open) could be done by implementing some kind of nested phy model where the st,spear1340-phy contains another "phys" property pointing to the st,miphy40 node and the driver just calls the slave phy_ops recursively, or the sata and pcie nodes actually link to two phy nodes that are separate from one another. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
