Dear Chen Peter-B29397, > > > > Still use IRQF_SHARED for the usb interrupt, but: > > > > * The IRQ handler in ehci-mxs, that's set in hc_driver.irq would be > > > > always > > > > returning IRQ_NONE. > > > > * The IRQ handler in imx-otg would call the callback registered via > > > > imx_otg_set_irq_handler() only if the port was actually in host mode > > > > > > The interrupt which is registered by hcd core is usb_hcd_irq, it will > > > > call > > > > > ehci_irq. The hc_driver.irq is included in usb_hcd_irq. > > > > Hm, that's correct. I'll dive in and see if there's any other way around. > > I > > think I saw IRQF_DISABLED somewhere there, but that might be just some > > phantom. > > Either way, is this direction I'm taking the correct one (have irq > > handler in > > imx-otg and send IRQs to gadget/host drivers from there)? > > Sorry for late as I can't see this email at my inbox. That's fine :) > If you can handle hcd irq well, I think it is correct direction. Good, any other problems you noticed? Thanks! Best regards, Marek Vasut -- 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
