Hi Roger,

From: Roger Quadros
Sent: Monday, June 20, 2016 7:13 PM

Hi,

On 20/06/16 10:45, Felipe Balbi wrote:

< snip >

quoted

quoted

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).

Best regards,
Yoshihiro Shimoda

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