On Wed, 2 Jul 2014, Tuomas Tynkkynen wrote: > Hi all, > > This series fixes a probe order issue with the Tegra EHCI driver. > Basically, the register area of the 1st USB controller contains some > registers that are global to all of the controllers, but that are also > cleared when reset is asserted to the 1st controller. So if (say) the > 3rd controller would be the first one to finish probing successfully, > then the reset that happens during the 1st controller's probe would > result in broken USB. So the before doing anything with the USB HW, > we should reset the 1st controller once, and then never ever reset > it again. This sounds very much like the sort of thing that ought to be described in DT. It is a hardware dependence, and DT exists for the purpose of describing the hardware. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
