github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 16:44:58 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

usb: chipidea: udc: handle USB Error Interrupt if IOC not set

Browse Source 
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>
This commit is contained in:
Xu Yang 2024-09-26 10:29:04 +08:00 committed by Greg Kroah-Hartman
parent edfcc455c8
commit 548f48b66c
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/chipidea/udc.c
View File

@ -2217,7 +2217,7 @@ 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)) {