Re: [PATCH v3 1/2] usb: ohci-at91: Forcibly suspend ports while USB suspend

Alexandre Belloni
2016-06-20T08:29:57Z

On 20/06/2016 at 03:16:35 +0000, Yang, Wenyou wrote :
> > Sure, what I mean is that you can try to get the regmap for the SFR in every case.
> > Depending on whether you were able to get it, you can decide to call
> > ohci_at91_port_suspend/resume or not (just test for sfr_regmap != NULL).
>
> I don't think so. The SFR includes a lot of miscellaneous functions, more than this one.
>

I know but this is irrelevant to this discussion. If you need to use the
SFR from another driver you will simply get it from that other driver.

I that case, you will try to get "atmel,sama5d2-sfr". It is only present
on sama5d2 so you have enough information to know whether or not you can
use it to suspend/resume.

--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering