Re: [PATCH 3/3] serial: 8250: omap: restore registers on shutdown

[Charles Manning]

On Fri, Aug 7, 2015 at 6:22 AM, Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> wrote:
> I agree; this is what we should do first because someone might want it
> for backports.

Got an idea how far this can be ported back?

I'm being hampered by severe performance issues on a
beagleboneblack-like device (am335x) running on 3.18 kernel.

I have a 1Mbaud link that is getting packets of about 22 bytes @800 Hz
and old omap-serial is keeping up, but killing the CPU.

I'm considering backporting 8250_omap as a get out of jail.

Opinions appreciated.

Thanks.
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