From: "Du, Changbin" <changbin...@intel.com>
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
Signed-off-by: Du, Changbin <changbin...@intel.com>
---
drivers/usb/dwc2/gadget.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 0abf73c..92a182f 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);
}
}
--
2.5.0
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
