usb: dwc2: host: program descriptor for next frame

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Isochronous descriptor is currently programmed for the frame
after the last descriptor was programmed.

If the last descriptor frame underrun, then current descriptor must
take this into account and must be programmed on the current frame + 1.
This overrun usually happens when system is loaded and dwc2 can't init
descriptor list in time.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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Gregory Herrero 2015-11-05 09:41:43 +01:00 • committed by Felipe Balbi

parent b9392d9920

commit c17b337c1e

2 changed files with 32 additions and 2 deletions

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2

drivers/usb/dwc2/hcd.h

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32

drivers/usb/dwc2/hcd_ddma.c

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