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    SubjectRe: [PATCH] HID: intel-ish-hid: use async resume function
    On Sun, 13 Jun 2021, Ye Xiang wrote:

    > 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 <xiang.ye@intel.com>

    Applied, thank you.

    --
    Jiri Kosina
    SUSE Labs

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