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| author |   Xu Yang <xu.yang_2@nxp.com> | 2024-09-26 10:29:04 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-04 15:14:09 +0200 |
| commit | 548f48b66c0c5d4b9795a55f304b7298cde2a025 (patch) | |
| tree | d6fc525c07a1620a69ed1811c190ee7c6e3633ba /drivers/usb/chipidea | |
| parent | usb: chipidea: udc: create bounce buffer for problem sglist entries if possible (diff) | |
| download | wireguard-linux-548f48b66c0c5d4b9795a55f304b7298cde2a025.tar.xz wireguard-linux-548f48b66c0c5d4b9795a55f304b7298cde2a025.zip | |
usb: chipidea: udc: handle USB Error Interrupt if IOC not set
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>
Diffstat (limited to 'drivers/usb/chipidea')
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index f0fcaf2b1f33..fd6032874bf3 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -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)) { |