Hi Tony, On Thursday 10 Nov 2016 22:29:34 Laurent Pinchart wrote: > On Thursday 10 Nov 2016 10:50:33 Tony Lindgren wrote: > > * Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> [161110 10:18]: > > > I'll try to give it a go, but right now I'm stuck with a different MUSB > > > problem :-) I'm trying to boot my panda board over the SMSC95xx > > > ethernet, and have switched gadget support from being compiled in to > > > being compiled as a module. I then get > > > > > > [ 2.766174] musb_bus_suspend 2586: trying to suspend as a_idle while > > > active > > > > > > printed in a loop at boot time. I've traced musb->is_active being set to > > > 1 in musb_start() with > > > > > > musb->port_mode = MUSB_PORT_MODE_DUAL_ROLE > > > musb->xceiv->otg->state = OTG_STATE_A_IDLE > > > devctl = MUSB_DEVCTL_BDEVICE | MUSB_DEVCTL_VBUS > > > > > > I can disable gadget support completely which will I believe fix the > > > problem, but that's just a workaround. Help would be appreciated. > > > > Do you have the ID pin grounded > > I've measured it on the board and I don't. Booting with the USB cable > unplugged and the board powered through the power jack gives the same > result. > > or how do you get to the A_IDLE state? > > Don't ask me :-) > > > I'm pretty much only testing with loadable modules as in > > omap2plus_defconfig, I don't think I've seen this issue.. > > > > Maybe check the changes in your .config against just plain > > omap2plus_defconfig? Are you trying to force host only mode? > > I started anew from omap2plus_defconfig and applied the following changes to > enable NFS root. > > -CONFIG_USB_NET_DRIVERS=m > -CONFIG_USB_USBNET=m > -CONFIG_USB_NET_SMSC95XX=m > -CONFIG_USB=m > -CONFIG_USB_EHCI_HCD=m > -CONFIG_USB_EHCI_HCD_OMAP=m > -CONFIG_NOP_USB_XCEIV=m > -CONFIG_USB_GADGET=m > -CONFIG_OMAP_USB2=m > +CONFIG_USB_NET_DRIVERS=y > +CONFIG_USB_USBNET=y > +CONFIG_USB_NET_SMSC95XX=y > +CONFIG_USB=y > +CONFIG_USB_EHCI_HCD=y > +CONFIG_USB_EHCI_HCD_OMAP=y > +CONFIG_NOP_USB_XCEIV=y > +# CONFIG_USB_GADGET is not set > +CONFIG_OMAP_USB2=y > > I had to disable CONFIG_USB_GADGET is compiling it as a module prevents > selecting CONFIG_NOP_USB_XCEIV=y, which is a dependency for > CONFIG_USB_EHCI_HCD_OMAP=m. > > The new configuration resulted in a few changes, among which the most > notable is > > -# CONFIG_USB_MUSB_HOST is not set > -# CONFIG_USB_MUSB_GADGET is not set > -CONFIG_USB_MUSB_DUAL_ROLE=y > +CONFIG_USB_MUSB_HOST=y > > I then get the same error as originally reported. Actually disabling CONFIG_USB_MUSB_HDRC gets rid of the problem, quite understandably. It's not a fix though, just a workaround. Are you interested in investigating this ? -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
