On Fri, 2021-06-25 at 14:12 +0200, Jiri Kosina wrote:

On Sun, 13 Jun 2021, Ye Xiang wrote:

quoted

ISH IPC driver uses asynchronous workqueue to do resume now, but
there is
a potential timing issue: when child devices resume before bus
driver, it
will cause child devices resume failed and cannot be recovered
until
reboot. The current implementation in this case do wait for IPC to
resume
but fail to accommodate for a case when there is no ISH reboot and
soft
resume is taking time. This issue is apparent on Tiger Lake
platform with
5.11.13 kernel when doing suspend to idle then resume(s0ix) test.
To
resolve this issue, we change ISHTP HID client to use asynchronous
resume
callback too. In the asynchronous resume callback, it waits for the
ISHTP
resume done event, and then notify ISHTP HID client link ready.

Signed-off-by: Ye Xiang <redacted>

Srinivas, can I please get your Ack for this one?

Done.

Thanks,
Srinivas

Thanks,