linux-kernel - Re: [PATCH v10 03/14] usb: hcd.h: Add OTG to HCD interface

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Date:	Wed, 15 Jun 2016 10:14:39 +0300
From:	Roger Quadros <rogerq@...com>
To:	Alan Stern <stern@...land.harvard.edu>
CC:	<peter.chen@...escale.com>, <balbi@...nel.org>, <tony@...mide.com>,
	<gregkh@...uxfoundation.org>, <dan.j.williams@...el.com>,
	<mathias.nyman@...ux.intel.com>, <Joao.Pinto@...opsys.com>,
	<sergei.shtylyov@...entembedded.com>, <jun.li@...escale.com>,
	<grygorii.strashko@...com>, <yoshihiro.shimoda.uh@...esas.com>,
	<robh@...nel.org>, <nsekhar@...com>, <b-liu@...com>,
	<joe@...ches.com>, <linux-usb@...r.kernel.org>,
	<linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>
Subject: Re: [PATCH v10 03/14] usb: hcd.h: Add OTG to HCD interface

On 14/06/16 17:21, Alan Stern wrote:
> On Tue, 14 Jun 2016, Roger Quadros wrote:
> 
>> +Alan
>>
>> On 10/06/16 16:07, Roger Quadros wrote:
>>> The OTG core will use struct otg_hcd_ops to interface
>>> with the HCD (Host Controller Driver).
>>>
>>> The main purpose of this interface is to avoid directly
>>> calling HCD APIs from the OTG core as they
>>> wouldn't be defined in the built-in symbol table if
>>> CONFIG_USB is m.
>>>
>>> Signed-off-by: Roger Quadros <rogerq@...com>
>>> Acked-by: Peter Chen <peter.chen@....com>
>>> ---
>>>  include/linux/usb/hcd.h | 24 ++++++++++++++++++++++++
>>>  1 file changed, 24 insertions(+)
>>>
>>> diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
>>> index 66fc137..7729c1f 100644
>>> --- a/include/linux/usb/hcd.h
>>> +++ b/include/linux/usb/hcd.h
>>> @@ -400,6 +400,30 @@ struct hc_driver {
>>>  
>>>  };
>>>  
>>> +/**
>>> + * struct otg_hcd_ops - Interface between OTG core and HCD
>>> + *
>>> + * Provided by the HCD core to allow the OTG core to interface with the HCD
> 
> Add:  * in case the OTG core is built-in and the HCD core is built as a module.

OK.

> 
> Otherwise, for patches 1, 3, and 12:
> 
> Acked-by: Alan Stern <stern@...land.harvard.edu>
> 

Thanks.

cheers,
-roger