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

JIRA: https://issues.redhat.com/browse/RHEL-78828

commit 548f48b66c0c5d4b9795a55f304b7298cde2a025
Author: Xu Yang <xu.yang_2@nxp.com>
Date: Thu, 26 Sep 2024 10:29:04 +0800

  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: Desnes Nunes <desnesn@redhat.com>
This commit is contained in:
Desnes Nunes 2025-03-19 15:49:07 -03:00
parent 5aa83a67e8
commit 85b01e9bb2
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/chipidea/udc.c
View File

@ -2210,7 +2210,7 @@ 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)) {