Re: [RFC] usb: musb: dsps, OTG detection

2013-10-15 Thread Markus Pargmann
On Mon, Oct 14, 2013 at 03:43:35PM -0500, Bin Liu wrote: On Mon, Oct 14, 2013 at 10:22 AM, Markus Pargmann m...@pengutronix.de wrote: Hi, On Mon, Oct 14, 2013 at 08:54:09AM -0500, Bin Liu wrote: On Mon, Oct 14, 2013 at 8:35 AM, Markus Pargmann m...@pengutronix.de wrote: The USB

Re: [RFC] usb: musb: dsps, OTG detection

2013-10-14 Thread Bin Liu
On Mon, Oct 14, 2013 at 8:35 AM, Markus Pargmann m...@pengutronix.de wrote: The USB Controller does not support ID pin change interrupts. So we have to use a polling function to detect changes of A/B device state (otg_timer). This poll function has to check in several states if a other device

Re: [RFC] usb: musb: dsps, OTG detection

2013-10-14 Thread Markus Pargmann
Hi, On Mon, Oct 14, 2013 at 08:54:09AM -0500, Bin Liu wrote: On Mon, Oct 14, 2013 at 8:35 AM, Markus Pargmann m...@pengutronix.de wrote: The USB Controller does not support ID pin change interrupts. So we have to use a polling function to detect changes of A/B device state (otg_timer).

Re: [RFC] usb: musb: dsps, OTG detection

2013-10-14 Thread Bin Liu
On Mon, Oct 14, 2013 at 10:22 AM, Markus Pargmann m...@pengutronix.de wrote: Hi, On Mon, Oct 14, 2013 at 08:54:09AM -0500, Bin Liu wrote: On Mon, Oct 14, 2013 at 8:35 AM, Markus Pargmann m...@pengutronix.de wrote: The USB Controller does not support ID pin change interrupts. So we have to