On Tue, 17 May 2016 16:16:23 -0700, John Youn wrote:
> The following patch series fixes up isochronous support for the dwc2
> gadget. The existing isochronous support lacked a few features. Most
> notably it did not properly sync up with the first packet and it
> didn't handle the Incomplete ISO IN/OUT interrupts.
>
> These patches have been sitting in our internal tree for a while and
> tested mostly on a HAPS-based FPGA IP validation platform.
Tested-by: John Keeping <john@xxxxxxxxxxxx>
on Rockchip RK3288 (Radxa Rock2 Square). With these patches the UAC2
gadget works smoothly.
I did spot a couple of errors getting logged, but they don't seem to
stop isochronous transfers working and I don't think they're new so they
shouldn't block this series. When setting up a gadget via configfs, I
consistently get:
dwc2 ff580000.usb: dwc2_hsotg_enqueue_setup: failed queue (-11)
I also occasionally see:
dwc2 ff580000.usb: GOUTNakEff triggered
when cancelling audio playback, which I guess is expected, so maybe that
just needs to be demoted to debug level.
Regards,
John
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