diff options
| author | Du, Changbin <changbin.du@intel.com> | 2015-12-04 15:38:23 +0800 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-12-22 11:50:03 -0600 |
| commit | 0676c7e734e3807f4e91f5d0edcaeed1f5ff412a (patch) | |
| tree | a111cd1a0763d057dc1c225fd5fc5c59bdae6c67 /drivers/usb | |
| parent | a5beaaf39455e4388251e95ef2ce6849cabf3393 (diff) | |
| download | linux-0676c7e734e3807f4e91f5d0edcaeed1f5ff412a.tar.bz2 | |
usb: dwc2: fix transfer stop programming for out endpoint
To stop an out endpoint, software should set sets the Global OUT NAK,
but not the Global Non-periodic IN NAK. This driver bug leads the out-ep
failed be in disabled state with below error.
dwc2_hsotg_ep_stop_xfr: timeout DOEPCTL.EPDisable
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 0abf73c91beb..92a182feb936 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -2911,15 +2911,15 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, "%s: timeout DIEPINT.NAKEFF\n", __func__); } else { /* Clear any pending nak effect interrupt */ - dwc2_writel(GINTSTS_GINNAKEFF, hsotg->regs + GINTSTS); + dwc2_writel(GINTSTS_GOUTNAKEFF, hsotg->regs + GINTSTS); - __orr32(hsotg->regs + DCTL, DCTL_SGNPINNAK); + __orr32(hsotg->regs + DCTL, DCTL_SGOUTNAK); /* Wait for global nak to take effect */ if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS, - GINTSTS_GINNAKEFF, 100)) + GINTSTS_GOUTNAKEFF, 100)) dev_warn(hsotg->dev, - "%s: timeout GINTSTS.GINNAKEFF\n", __func__); + "%s: timeout GINTSTS.GOUTNAKEFF\n", __func__); } /* Disable ep */ @@ -2944,7 +2944,7 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, /* TODO: Flush shared tx fifo */ } else { /* Remove global NAKs */ - __bic32(hsotg->regs + DCTL, DCTL_SGNPINNAK); + __bic32(hsotg->regs + DCTL, DCTL_SGOUTNAK); } } |