Hi Yoshihiro,

On 09/06/16 13:49, Yoshihiro Shimoda wrote:

Hi Roger,

quoted

From: Roger Quadros
Sent: Wednesday, June 08, 2016 6:04 PM

The OTG state machine needs a mechanism to start and
stop the gadget controller as well as connect/disconnect
from the bus. Add usb_gadget_start(), usb_gadget_stop()
and usb_gadget_connect_control().

Introduce usb_otg_add_gadget_udc() to allow controller drivers
to register a gadget controller that is part of an OTG instance.

Register with OTG core when UDC is added in usb_add_gadget_udc_release()
and unregister on usb_del_gadget_udc().

Notify the OTG core when gadget function driver is available on
udc_bind_to_driver() and when it is removed in usb_gadget_remove_driver().

We need to unlock the usb_lock mutex before calling
usb_otg_register_gadget() else it will cause a circular
locking dependency.

Ignore softconnect sysfs control when we're in OTG
mode as OTG FSM should care of gadget softconnect using
the b_bus_req mechanism.

Signed-off-by: Roger Quadros <redacted>
---
 drivers/usb/gadget/udc/udc-core.c | 202 ++++++++++++++++++++++++++++++++++++--
 include/linux/usb/gadget.h        |   4 +
 2 files changed, 196 insertions(+), 10 deletions(-)

I tried to apply this patch on the Felipe's usb.git / testing/next branch,
but I couldn't apply because the udc-core.c was renamed to core.c.
https://git.kernel.org/cgit/linux/kernel/git/balbi/usb.git/commit/?h=testing/next&id=a22b539c7082b6a3046b3a9cebb356a047a2d81d

I guess this patch needs rebase for that.

OK. I'll respin the whole series on Felipe's usb.git /testing/next.

cheers,
-roger
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