Hi,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> writes:
> Hi Roger,
>
>> From: Roger Quadros
>> Sent: Monday, June 20, 2016 7:13 PM
>>
>> Hi,
>>
>> On 20/06/16 10:45, Felipe Balbi wrote:
> < snip >
>> >> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
>> >> index f4fc0aa..1d74fb8 100644
>> >> --- a/include/linux/usb/gadget.h
>> >> +++ b/include/linux/usb/gadget.h
>> >> @@ -328,6 +328,7 @@ struct usb_gadget_ops {
>> >> * @in_epnum: last used in ep number
>> >> * @mA: last set mA value
>> >> * @otg_caps: OTG capabilities of this gadget.
>> >> + * @otg_dev: OTG controller device, if needs to be used with OTG core.
>> >
>> > do you really know of any platform which has a separate OTG controller?
>> >
>>
>> Andrew had pointed out in [1] that Tegra210 has separate blocks for OTG, host
>> and gadget.
>>
>> [1] http://article.gmane.org/gmane.linux.ports.tegra/22969
>>
>> Yoshihiro,
>>
>> How is the dual-role architecture on your Renesas platform?
>
> About the dual-role architecture, Renesas platform (R-Car H3) has a
> USB 2.0 host controller (EHCI/OHCI) with OTG function and a separate
> USB 2.0 peripheral controller (HS-USB). The OTG function is related
> to some PHY control registers, so I intend to add the OTG/Dual-role
> core support into the phy driver (drivers/phy/phy-rcar-gen3-usb2.c).
that looks like a mux to me :-) thanks for the pointer
--
balbi
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