On Thu, Sep 07, 2017 at 03:37:46PM +0200, Johan Hovold wrote:
> These patches fix a couple of bugs introduced by the recent runtime-PM
> work (details in the individual commit messages).
>
> Note that the external abort was due to the irq work never being flushed
> on suspend, and that we may need similar fixes for the delayed reset and
> resume work which are likewise never cancelled on suspend.
>
> As I just mentioned in the v1 thread, there are a number of further issues with
> musb suspend (e.g. on BBB):
>
> 1. System suspend appears to break any active gadget (which then can be
> restarted manually).
>
> 2. The early_tx polling in musb_cppi41 lacks a timeout, something which can
> lead to the hrtimer rescheduling itself indefinitely if the fifo never
> empties (e.g. if a transfer is is initiated post suspend due to issue 1).
>
> See commit a655f481d83d ("usb: musb: musb_cppi41: handle pre-mature TX
> complete interrupt").
>
> 3. In host mode, if a device is disconnected while the system is suspended,
> this will keep the controller runtime active after resume as the session
> bit is always set.
Bin and Tony, any comments to this series?
Thanks,
Johan
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