On Mon, Nov 28, 2016 at 12:29:07AM +0000, André Przywara wrote: > > Something more interesting happened. > > > > Xunlong made a add-on board for Orange Pi Zero, which exposes the > > two USB Controllers exported at expansion bus as USB Type-A > > connectors. > > > > Also it exposes a analog A/V jack and a microphone. > > > > Should I enable {e,o}hci{2.3} in the device tree? > > Actually we should do this regardless of this extension board. The USB > pins are not multiplexed and are exposed on user accessible pins (just > not soldered, but that's a detail), so I think they qualify for DT > enablement. And even if a user can't use them, it doesn't hurt to have > them (since they are not multiplexed). My main concern about this is that we'll leave regulators enabled by default, for a minority of users. And that minority will prevent to do a proper power management when the times come since we'll have to keep that behaviour forever. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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