From: Alexander Usyskin Date: Wed, 26 May 2021 19:33:34 +0000 (+0300) Subject: mei: request autosuspend after sending rx flow control X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=bbf0a94744edfeee298e4a9ab6fd694d639a5cdf;p=uclinux-h8%2Flinux.git mei: request autosuspend after sending rx flow control 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: Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Link: https://lore.kernel.org/r/20210526193334.445759-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index a98f6b895af7..aab3ebfa9fc4 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -277,6 +277,9 @@ 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;