| Message ID | a36981accc26cd674c5d8f8da6164344b94ec1fe.1631386531.git.Minas.Harutyunyan@synopsys.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] usb: dwc2: gadget: Fix ISOC transfer complete handling for DDMA | expand |
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index f09cbdfac9df..11d85a6e0b0d 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3067,9 +3067,7 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx, /* In DDMA handle isochronous requests separately */ if (using_desc_dma(hsotg) && hs_ep->isochronous) { - /* XferCompl set along with BNA */ - if (!(ints & DXEPINT_BNAINTR)) - dwc2_gadget_complete_isoc_request_ddma(hs_ep); + dwc2_gadget_complete_isoc_request_ddma(hs_ep); } else if (dir_in) { /* * We get OutDone from the FIFO, so we only
When last descriptor in a descriptor list completed with XferComplete interrupt, core switching to handle next descriptor and assert BNA interrupt. Both these interrupts are set while dwc2_hsotg_epint() handler called. Each interrupt should be handled separately: first XferComplete interrupt then BNA interrupt, otherwise last completed transfer will not be giveback to function driver as completed request. Fixes: 729cac693eec ("usb: dwc2: Change ISOC DDMA flow") Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> --- Changes in v2: - Fix typo in commit message drivers/usb/dwc2/gadget.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) base-commit: 353f497ca8c913cd25ae06c7f94e3b0ff4124dd8