Minas Harutyunyan dbe2518b2d usb: dwc2: gadget: Fix ISOC transfer complete handling for DDMA
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: 729cac693e ("usb: dwc2: Change ISOC DDMA flow")
Cc: stable <[email protected]>
Signed-off-by: Minas Harutyunyan <[email protected]>
Link: https://lore.kernel.org/r/a36981accc26cd674c5d8f8da6164344b94ec1fe.1631386531.git.Minas.Harutyunyan@synopsys.com
Signed-off-by: Greg Kroah-Hartman <[email protected]>
2021-09-14 10:42:00 +02:00
2021-09-12 16:28:37 -07:00

Linux kernel
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