From c4430a26948b84c0d820e83f8c640229f960d3b6 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 24 May 2012 10:30:01 +0300 Subject: [PATCH] usb: dwc3: gadget: disable U1/U2 on disconnect If we get a disconnect IRQ, we should take the core out of low power mode so we can reconnect afterwards. Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 867c476853ec..054ee5ec5c13 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1906,11 +1906,9 @@ static void dwc3_clear_stall_all_ep(struct dwc3 *dwc) static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc) { + int reg; + dev_vdbg(dwc->dev, "%s\n", __func__); -#if 0 - XXX - U1/U2 is powersave optimization. Skip it for now. Anyway we need to - enable it before we can disable it. reg = dwc3_readl(dwc->regs, DWC3_DCTL); reg &= ~DWC3_DCTL_INITU1ENA; @@ -1918,7 +1916,6 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc) reg &= ~DWC3_DCTL_INITU2ENA; dwc3_writel(dwc->regs, DWC3_DCTL, reg); -#endif dwc3_stop_active_transfers(dwc); dwc3_disconnect_gadget(dwc); -- 2.39.5