Re: [PATCH v3 05/13] usb: chipidea: udc: driver update for OTG HNP.

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On Tue, Mar 18, 2014 at 10:36:17AM +0800, Peter Chen wrote:
> On Mon, Mar 17, 2014 at 01:43:05PM +0800, Li Jun wrote:
> > On Wed, Mar 12, 2014 at 04:21:28PM +0800, Peter Chen wrote:
> > > On Wed, Mar 12, 2014 at 03:12:48PM +0800, Li Jun wrote:
> > > > On Wed, Mar 12, 2014 at 03:01:15PM +0800, Peter Chen wrote:
> > > > > On Thu, Feb 27, 2014 at 07:38:23AM +0800, Li Jun wrote:
> > > > > > Add b_hnp_enable request handling and enable gadget->is_otg
> > > > > > 
> > > > > > Signed-off-by: Li Jun <b47624@xxxxxxxxxxxxx>
> > > > > > ---
> > > > > >  drivers/usb/chipidea/udc.c |   11 ++++++++++-
> > > > > >  1 file changed, 10 insertions(+), 1 deletion(-)
> > > > > > 
> > > > > > diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
> > > > > > index fe30dcc..602bbf3 100644
> > > > > > --- a/drivers/usb/chipidea/udc.c
> > > > > > +++ b/drivers/usb/chipidea/udc.c
> > > > > > @@ -20,6 +20,7 @@
> > > > > >  #include <linux/pm_runtime.h>
> > > > > >  #include <linux/usb/ch9.h>
> > > > > >  #include <linux/usb/gadget.h>
> > > > > > +#include <linux/usb/otg-fsm.h>
> > > > > >  #include <linux/usb/chipidea.h>
> > > > > >  
> > > > > >  #include "ci.h"
> > > > > > @@ -1098,6 +1099,14 @@ __acquires(ci->lock)
> > > > > >  					default:
> > > > > >  						break;
> > > > > >  					}
> > > > > > +					break;
> > > > > 
> > > > > This break is needed?
> > > > > 
> > > > 
> > > > Yes, needed.
> > > 
> > > Why, the case USB_DEVICE_TEST_MODE should alway break, isn't it?
> > > 
> > 
> > yes, I don't think the case USB_DEVICE_TEST_MODE should always fall through to
> > enable HNP here.
> 
> The case USB_DEVICE_TEST_MODE will always break without your patch.
> 

Have a look again, I was wrong, this fix is ok

Peter

> Peter
> 
> > 
> > > > 
> > > > > > +				case USB_DEVICE_B_HNP_ENABLE:
> > > > > > +					if (gadget_is_otg(&ci->gadget)) {
> > > > > > +						ci->gadget.b_hnp_enable = 1;
> > > > > > +						err = isr_setup_status_phase(
> > > > > > +								ci);
> > > > > > +					}
> > > > > > +					break;
> > > > > >  				default:
> > > > > >  					goto delegate;
> > > > > >  				}
> > > > > > @@ -1765,7 +1774,7 @@ static int udc_start(struct ci_hdrc *ci)
> > > > > >  	ci->gadget.ops          = &usb_gadget_ops;
> > > > > >  	ci->gadget.speed        = USB_SPEED_UNKNOWN;
> > > > > >  	ci->gadget.max_speed    = USB_SPEED_HIGH;
> > > > > > -	ci->gadget.is_otg       = 0;
> > > > > > +	ci->gadget.is_otg       = ci->is_otg ? 1 : 0;
> > > > > >  	ci->gadget.name         = ci->platdata->name;
> > > > > >  
> > > > > >  	INIT_LIST_HEAD(&ci->gadget.ep_list);
> > > > > > -- 
> > > > > > 1.7.9.5
> > > > > > 
> > > > > > 
> > > > > 
> > > > > -- 
> > > > > 
> > > > > Best Regards,
> > > > > Peter Chen
> > > > > 
> > > > 
> > > 
> > > -- 
> > > 
> > > Best Regards,
> > > Peter Chen
> > > 
> > 
> 
> -- 
> 
> Best Regards,
> Peter Chen
> 
> --
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> 
> 

-- 

Best Regards,
Peter Chen

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