5.4-stable review patch. If anyone has any objections, please let me know.
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From: Xu Yang xu.yang_2@nxp.com
[ Upstream commit 548f48b66c0c5d4b9795a55f304b7298cde2a025 ]
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.
UI is set only when IOC set. Add checking UEI to fix miss call isr_tr_complete_handler() when IOC have not set and transfer error happen.
Acked-by: Peter Chen peter.chen@kernel.com Signed-off-by: Xu Yang xu.yang_2@nxp.com Link: https://lore.kernel.org/r/20240926022906.473319-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 72d62abb6f285..a6ce6b89b271a 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1902,7 +1902,7 @@ 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)) {