Hi, > >Each setup stage will prepare status stage at cdns3_ep0_setup_phase, >it doesn't need to add extra status stage for test mode handling, >otherwise, the controller can't enter the test mode. Through the Lecroy >bus analyzer log, the controller will always wait status stage >even it is prepared by software later than the test mode is set >by software. If we comment out the status stage at cdns3_ep0_setup_phase, >the controller will not enter test mode even the test mode is set >beforehand. > >Signed-off-by: Peter Chen <peter.chen@xxxxxxx> Reviewed-by: Pawel Laszczak <pawell@xxxxxxxxxxx> >--- > drivers/usb/cdns3/ep0.c | 7 ------- > 1 file changed, 7 deletions(-) > >diff --git a/drivers/usb/cdns3/ep0.c b/drivers/usb/cdns3/ep0.c >index e71240b386b4..82645a2a0f52 100644 >--- a/drivers/usb/cdns3/ep0.c >+++ b/drivers/usb/cdns3/ep0.c >@@ -332,13 +332,6 @@ static int cdns3_ep0_feature_handle_device(struct cdns3_device *priv_dev, > case TEST_K: > case TEST_SE0_NAK: > case TEST_PACKET: >- cdns3_ep0_complete_setup(priv_dev, 0, 1); >- /** >- * Little delay to give the controller some time >- * for sending status stage. >- * This time should be less then 3ms. >- */ >- mdelay(1); > cdns3_set_register_bit(&priv_dev->regs->usb_cmd, > USB_CMD_STMODE | > USB_STS_TMODE_SEL(tmode - 1)); >-- >2.17.1
