Reding: What's new for Tegra in Linux v4.7

Thierry Reding looks at Tegra support in Linux 4.7. "The XUSB driver has been under development for a ridiculously long time. One of the reasons is that it relies on the XUSB pad controller to configure its pins as required by the board design. The XUSB pad controller is very likely one of the least-intuitive pieces of hardware I've ever encountered, and the attempts to come up with a device tree binding to describe it have been very numerous. We did finally settle on something earlier this year and after the existing code was updated for the new binding, we're finally able to support super-speed USB on Tegra124 and later." (Thanks to Martin Michlmayr)

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