Re: [RFC PATCH 0/2] Fix for the internal card reader and suspend on MacBooks

[Ivan Mironov]

On Thu, 2019-02-14 at 17:03 +0200, Mathias Nyman wrote:
> This card reader prevents second system suspend on latest kernels, see thread:
> https://marc.info/?l=linux-usb&m=154816680816246&w=2
> 
> In that case the card reader fails to resume from usb3 U3 suspend state,
> and ends up stuck in USB3 polling state, which now prevents suspend
> 
> Could you try a testpatch (attached) to see if it helps?
> 
> Thanks
> -Mathias

Hi Mathias,

thanks for your patch. I applied it on top of current master (5.0.0-
rc6+ 1f947a7a011fcceb14cb912f5481a53b18f1879a) and tested it.
Unfortunately, without success.

Card reader disappeared after the first suspend/resume cycle. Second
suspend failed.

Complete dmesg is here: https://raw.githubusercontent.com/im-0/investigate-card-reader-suspend-problem-on-mbp11.4/master/test-18/dmesg