On Wed, Oct 9, 2019 at 5:16 AM Dmitry Osipenko <digetx@xxxxxxxxx> wrote: > > 08.10.2019 09:25, Peter Chen пишет: > > On 19-10-01 21:41:48, Peter Geis wrote: > >> This patch set enables the tegra-udc driver to take the place of > >> tegra-ehci as the usb host driver. > >> It fixes up some checks in the tegra-udc driver. > >> It pulls the tegra specific bits from the tegra-ehci driver. > >> > >> It would be better to have generic helpers in the dma core that can > >> handle alignment, instead of using tegra specific helpers, but that is > >> well above my skillset. > >> > >> I haven't checked OTG functionality, mostly because I don't have any > >> devices with working OTG yet. > > > > I am not sure what the OTG mean here, the OTG Compliance (OTG FSM in > > code) are almost dead, so you don't need to consider support it. > > Usually, people considers dual-role switch as OTG. > > Yes, I assume we're talking about the dual-role switch. Correct, unfortunately the devicetree bindings do not differentiate between the two. You have given me a few ideas to work around this though.