[PATCH] staging: dwc2: add microframe scheduler from downstream Pi kernel
Greg KH
gregkh at linuxfoundation.org
Tue Jul 23 21:59:19 UTC 2013
On Wed, Jul 17, 2013 at 12:35:46PM -0700, Paul Zimmerman wrote:
> The transfer scheduler in the dwc2 driver is pretty basic, not to
> mention buggy. It works fairly well with just a couple of devices
> plugged in, but if you add, say, multiple devices with periodic
> endpoints, the scheduler breaks down and can't even enumerate all
> the devices.
>
> To fix this, import the "microframe scheduler" patch from the
> driver in the downstream Raspberry Pi kernel, which is based on
> the Synopsys vendor driver. That patch was done by the guys from
> raspberrypi.org, including at least Gordon Hollingsworth and
> "popcornmix".
>
> I have added a driver parameter for this, enabled by default, in
> case anyone has problems with it and needs to disable it. I don't
> think we should add a DT binding for that, though, since I plan to
> remove the option once any bugs are fixed.
>
> Signed-off-by: Paul Zimmerman <paulz at synopsys.com>
I'm guessing there will be a new version of this, so I'll drop this one
from my queue. Please feel free to resend an updated version.
thanks,
greg k-h
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