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mei: request autosuspend after sending rx flow control 

commit bbf0a94744edfeee298e4a9ab6fd694d639a5cdf upstream.

A rx flow control waiting in the control queue may block autosuspend.
Re-request autosuspend after flow control been sent to unblock
the transition to the low power state.

Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20210526193334.445759-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Usyskin 2021-05-26 22:33:34 +03:00 committed by Greg Kroah-Hartman
parent eb78fa5a38
commit 12fb557863
1 changed files with 3 additions and 0 deletions
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3
drivers/misc/mei/interrupt.c
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@ -222,6 +222,9 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
return ret;
}
pm_runtime_mark_last_busy(dev->dev);
pm_request_autosuspend(dev->dev);
list_move_tail(&cb->list, &cl->rd_pending);
return 0;