mei: request autosuspend at the end of write
On longer non-blocking write might not complete at the end of
autosuspend expiration, therefore we request autosuspend
again on the write completion.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index ce88c21..7a5a663 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -1459,12 +1459,18 @@
*/
void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb)
{
+ struct mei_device *dev = cl->dev;
+
switch (cb->fop_type) {
case MEI_FOP_WRITE:
mei_io_cb_free(cb);
cl->writing_state = MEI_WRITE_COMPLETE;
- if (waitqueue_active(&cl->tx_wait))
+ if (waitqueue_active(&cl->tx_wait)) {
wake_up_interruptible(&cl->tx_wait);
+ } else {
+ pm_runtime_mark_last_busy(dev->dev);
+ pm_request_autosuspend(dev->dev);
+ }
break;
case MEI_FOP_READ: