Hi Felipe, > From: Felipe Balbi > Sent: Thursday, April 21, 2016 7:05 PM > > Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> writes: > > > If kernel configuration is CONFIG_USB_XHCI_PLATFORM=y and > > CONFIG_USB_XHCI_RCAR is not set, R-Car Gen2/3 will cause long wait > > in xhci_reset() because such SoCs need specific initialization. > > where is the delay coming from exactly ? The delay is coming from the following code: ret = xhci_handshake(&xhci->op_regs->command, CMD_RESET, 0, 10 * 1000 * 1000); if (ret) return ret; And, kernel log is the following: [ 1.565605] xhci-hcd ee000000.usb: xHCI Host Controller [ 1.570636] xhci-hcd ee000000.usb: new USB bus registered, assigned bus number 5 [ 22.270160] xhci-hcd ee000000.usb: can't setup: -110 [ 22.274931] xhci-hcd ee000000.usb: USB bus 5 deregistered [ 22.280158] xhci-hcd: probe of ee000000.usb failed with error -110 The timestamp is strange to me. But, logs of R-Car H3 (ES1.0) and R-Car H2 were the same. Should I revise the commit log in detail? Best regards, Yoshihiro Shimoda -- 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
