On Wednesday 17 December 2014 23:33:02 Sneeker. Yeh wrote: > > > >No need for playing games with child devices, just see how the other drivers do > >it. > > I am wondering if this is what you mentioned here? : > Hcd21: f_usb20ho { > compatible = "fujitsu,f_usb20ho"; > ... > Ehci { > compatible = "generic-ehci"; > reg = <>; > } > ohci { > compatible = "generic-ohci"; > reg = <>; > } > } > By doing that, I can just use of_platform_populate() to create platform device more gracefully, > than using platform_device_xxx() those have been done in of_platform_populate(). > And also, managing register offset is totally done via dts description, not in the code. What I mean is leaving out the fujitsu,f_usb20ho node entirely, just put the two USB controllers on the bus directly and remove this driver. 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