Hello!
On 3/2/2017 5:52 AM, Bin Liu wrote:
The CPPI41 driver polls register to workaround the pre-mature TX
It's CPPI 4.1. And "premature".
interrupt issue, but it causes audio playback underrun when triggered in
Isoch transfers.
Isoch doesn't do back-to-back transfers, the TX should be done by the
time the next transfer is scheduled. So skip this polling workaround for
Isoch transfer.
Fixes: a655f481d83d6 ("usb: musb: musb_cppi41: handle pre-mature TX complete interrupt")
Cc: <stable@xxxxxxxxxxxxxxx> #4.1+
Reported-by: Alexandre Bailon <abailon@xxxxxxxxxxxx>
Signed-off-by: Bin Liu <b-liu@xxxxxx>
[...]
MBR, Sergei
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