Re: [Patch v2 08/10] usb: chipidea: host: add quirk for ehci operation

2013-10-23 Thread Peter Chen
On Thu, Oct 24, 2013 at 07:51:03AM +0200, Lothar Waßmann wrote: > Hi, > > Peter Chen wrote: > > For chipidea controller, it does not follow ehci spec strictly. > > Taking resume signal as an example, it will stop resume signal about > > 20-21ms later automatically, but standard ehci spec says, the

Re: [Patch v2 08/10] usb: chipidea: host: add quirk for ehci operation

2013-10-23 Thread Lothar Waßmann
Hi, Peter Chen wrote: > For chipidea controller, it does not follow ehci spec strictly. > Taking resume signal as an example, it will stop resume signal about > 20-21ms later automatically, but standard ehci spec says, the resume > signal is controlled by software (clear portsc.PORT_RESUME). > >

Re: [Patch v2 08/10] usb: chipidea: host: add quirk for ehci operation

2013-10-23 Thread Peter Chen
On Wed, Oct 23, 2013 at 10:42:58AM -0400, Alan Stern wrote: > On Tue, 22 Oct 2013, Peter Chen wrote: > > > For chipidea controller, it does not follow ehci spec strictly. > > Taking resume signal as an example, it will stop resume signal about > > 20-21ms later automatically, but standard ehci spe

Re: [Patch v2 08/10] usb: chipidea: host: add quirk for ehci operation

2013-10-23 Thread Alan Stern
On Tue, 22 Oct 2013, Peter Chen wrote: > For chipidea controller, it does not follow ehci spec strictly. > Taking resume signal as an example, it will stop resume signal about > 20-21ms later automatically, but standard ehci spec says, the resume > signal is controlled by software (clear portsc.PO