Hi, Nathan Sullivan <nathan.sullivan@xxxxxx> writes: > On Tue, Nov 03, 2015 at 07:56:55AM -0600, Felipe Balbi wrote: >> >> Hi, >> >> Nathan Sullivan <nathan.sullivan@xxxxxx> writes: >> > The USB OTG support currently depends on power management >> > (CONFIG_PM) being enabled, but does not actually need it enabled. >> > Remove this dependency. >> > >> > Tested on Bay Trail hardware with dwc3 USB. >> > >> > Signed-off-by: Nathan Sullivan <nathan.sullivan@xxxxxx> >> > --- >> > drivers/usb/core/Kconfig | 1 - >> > 1 file changed, 1 deletion(-) >> > >> > diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig >> > index a99c89e..9c5cdf3 100644 >> > --- a/drivers/usb/core/Kconfig >> > +++ b/drivers/usb/core/Kconfig >> > @@ -43,7 +43,6 @@ config USB_DYNAMIC_MINORS >> > >> > config USB_OTG >> > bool "OTG support" >> > - depends on PM >> >> I don't think this is correct. OTG depends on USB bus suspend, which is >> only available on PM builds. Care to further detail why you think PM is >> not needed on OTG ? >> >> -- >> balbi > > I think we can drop this patch, actually. > > It looks like we confused gadget and OTG support at some point in the > past, and we don't want PM on our hardware for latency reasons. We > really only need USB gadget support, not full OTG. Fair enough, thank you -- balbi
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