| Message ID | 20240912033551.910337-1-xu.yang_2@nxp.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/3] usb: chipidea: udc: handle USB Error Interrupt if IOC not set | expand |
On 24-09-12 11:35:49, Xu Yang wrote: > As per USBSTS register description about UEI: > > When completion of a USB transaction results in an error condition, this > bit is set by the Host/Device Controller. This bit is set along with the > USBINT bit, if the TD on which the error interrupt occurred also had its > interrupt on complete (IOC) bit set. > > Currently, device controller will do nothing when endpoints met transfer > error if IOC didn't set on that error dTD since UI didn't assert too. This > will also handle UEI event as same as USBSTS.UI for such cases. > > Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Acked-by: Peter Chen <peter.chen@kernel.com> > --- > drivers/usb/chipidea/udc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c > index 69ef3cd8d4f8..b9ccf62e0a50 100644 > --- a/drivers/usb/chipidea/udc.c > +++ b/drivers/usb/chipidea/udc.c > @@ -2063,7 +2063,7 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci) > } > } > > - if (USBi_UI & intr) > + if ((USBi_UI | USBi_UEI) & intr) > isr_tr_complete_handler(ci); > > if ((USBi_SLI & intr) && !(ci->suspended)) { > -- > 2.34.1 >
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 69ef3cd8d4f8..b9ccf62e0a50 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -2063,7 +2063,7 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci) } } - if (USBi_UI & intr) + if ((USBi_UI | USBi_UEI) & intr) isr_tr_complete_handler(ci); if ((USBi_SLI & intr) && !(ci->suspended)) {
As per USBSTS register description about UEI: When completion of a USB transaction results in an error condition, this bit is set by the Host/Device Controller. This bit is set along with the USBINT bit, if the TD on which the error interrupt occurred also had its interrupt on complete (IOC) bit set. Currently, device controller will do nothing when endpoints met transfer error if IOC didn't set on that error dTD since UI didn't assert too. This will also handle UEI event as same as USBSTS.UI for such cases. Signed-off-by: Xu Yang <xu.yang_2@nxp.com> --- drivers/usb/chipidea/udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)