Re: [PATCH v9 13/14] usb: gadget: udc: adapt to OTG core

[Roger Quadros]

Hi Yoshihiro,

On 09/06/16 13:49, Yoshihiro Shimoda wrote:
> Hi Roger,
> 
>> 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 <rogerq@xxxxxx>
>> ---
>>  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