Re: [PATCH 2/2] xhci: Improve the XHCI resume time

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On Tue, Apr 18, 2023 at 07:38:17PM +0530, Basavaraj Natikar wrote:
> xHC system resume time may increase due to a 120ms delay.

I'm sorry, but I can not understand this sentence.  Is the delay 120ms
too long?  Or too short?  Or will it change to be always at least 120ms?
Or something else?

> A PME# signal
> will trigger the xHC host to resume runtime, and the host must wait for a
> missed U3 LFPS wake signal before re-checking for port activity. It may
> be necessary to wait only for auto-resume cases. Add a check only for
> runtime resume to avoid the delay for other PM events so that the resume
> time can be improved.

I also can not understand these last two sentences, can you try to
reword it a bit differently?

thanks,

greg k-h



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