Kever, On Tue, Aug 5, 2014 at 6:01 PM, Kever Yang <kever.yang@xxxxxxxxxxxxxx> wrote: > According to the "dr_mode", the otg controller can work as > device role and host role. Some boards always want to use host mode > and some other boards want to use gadget mode. We use the dts setting > to set dwc2's mode, rather than fixing it to whatever hardware says. > > Signed-off-by: Kever Yang <kever.yang@xxxxxxxxxxxxxx> > Acked-by: Paul Zimmerman <paulz@xxxxxxxxxxxx> > --- > > Changes in v4: > - From Doug's suggestion: > -- remove dr_mode init from Kconfig code > -- change the commit meesage > > Changes in v3: > - fix the odd spacing in dwc2_hsotg struct > - From Jingoo's suggestion: > change the commit message > - add dr_mode init from Kconfig > > Changes in v2: > - put spaces around '+' operator > - expand the comment for dr_mode > - handle dr_mode is USB_DR_MODE_OTG > > drivers/usb/dwc2/core.c | 18 ++++++++++++++++++ > drivers/usb/dwc2/core.h | 5 +++++ > drivers/usb/dwc2/platform.c | 4 ++++ > 3 files changed, 27 insertions(+) In case it's useful, I've actually tested myself that this is necessary and sufficient to get the OTG port to behave properly as a host port on an rk3288 board. Tested-by: Doug Anderson <dianders@xxxxxxxxxxxx> Greg: now that the merge window has closed, are you interested in landing Kever's changes (with Paul's Ack). There's this series and another adding rk3288 support. If you'd like Kever to repost with Acks or want pointers to patches, please yell! ;) -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
