On Mon, Sep 30, 2019 at 09:54:11PM +0200, Sebastian Reichel wrote: > Hi, > > On Mon, Sep 30, 2019 at 08:23:30AM -0700, Tony Lindgren wrote: > > Actually playing with the cppi41 timeout might be more suitable here, > > they use the same module clock from what I remember though. So > > maybe increase the cppi41 autosuspend_timeout from 100 ms to 500 ms > > or higher: > > > > # echo 500 > /sys/bus/platform/drivers/cppi41-dma-engine/47400000.dma-controller/power/autosuspend_delay_ms > > > > If changing the autosuspend_timeout_ms value does not help, then > > try setting control to on there. > > I did not check the details, but from the cover-letter this might be > woth looking into: > > https://lore.kernel.org/lkml/20190930161205.18803-1-johan@xxxxxxxxxx/ No, that one should be unrelated as it would only prevent later suspends after a driver has been unbound (and rebound). Johan
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