It doesn't need to enable/disable L1 on the fly for EP0 transfer, we only need to enable L1 after SET_CONFIGURATION. This code may be introduced by careless. Cc: Pawel Laszczak <pawell@xxxxxxxxxxx> Signed-off-by: Peter Chen <peter.chen@xxxxxxx> --- drivers/usb/cdns3/ep0.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/usb/cdns3/ep0.c b/drivers/usb/cdns3/ep0.c index a2b9af5a80cc..5104414ce243 100644 --- a/drivers/usb/cdns3/ep0.c +++ b/drivers/usb/cdns3/ep0.c @@ -122,8 +122,6 @@ static void cdns3_ep0_complete_setup(struct cdns3_device *priv_dev, priv_dev->ep0_stage = CDNS3_SETUP_STAGE; writel((send_erdy ? EP_CMD_ERDY : 0) | EP_CMD_REQ_CMPL, &priv_dev->regs->ep_cmd); - - cdns3_allow_enable_l1(priv_dev, 1); } /** @@ -639,7 +637,6 @@ void cdns3_check_ep0_interrupt_proceed(struct cdns3_device *priv_dev, int dir) if (priv_dev->wait_for_setup && ep_sts_reg & EP_STS_IOC) { priv_dev->wait_for_setup = 0; - cdns3_allow_enable_l1(priv_dev, 0); cdns3_ep0_setup_phase(priv_dev); } else if ((ep_sts_reg & EP_STS_IOC) || (ep_sts_reg & EP_STS_ISP)) { priv_dev->ep0_data_dir = dir; -- 2.17.1