s390/ap: remove power management code from ap bus and drivers

The s390 power management support has been removed. So the
api registration and the suspend and resume callbacks and
all the code related to this for the ap bus and the ap drivers
is removed with this patch.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

1 files changed, 0 insertions, 51 deletions

diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index 9cb997cffa61..0eaf1d04e8df 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -201,31 +201,6 @@ static enum ap_wait ap_sm_read(struct ap_queue *aq)
 }
 
 /**
- * ap_sm_suspend_read(): Receive pending reply messages from an AP queue
- * without changing the device state in between. In suspend mode we don't
- * allow sending new requests, therefore just fetch pending replies.
- * @aq: pointer to the AP queue
- *
- * Returns AP_WAIT_NONE or AP_WAIT_AGAIN
- */
-static enum ap_wait ap_sm_suspend_read(struct ap_queue *aq)
-{
-	struct ap_queue_status status;
-
-	if (!aq->reply)
-		return AP_WAIT_NONE;
-	status = ap_sm_recv(aq);
-	switch (status.response_code) {
-	case AP_RESPONSE_NORMAL:
-		if (aq->queue_count > 0)
-			return AP_WAIT_AGAIN;
-		fallthrough;
-	default:
-		return AP_WAIT_NONE;
-	}
-}
-
-/**
  * ap_sm_write(): Send messages from the request queue to an AP queue.
  * @aq: pointer to the AP queue
  *
@@ -417,10 +392,6 @@ static ap_func_t *ap_jumptable[NR_AP_STATES][NR_AP_EVENTS] = {
 		[AP_EVENT_POLL] = ap_sm_read,
 		[AP_EVENT_TIMEOUT] = ap_sm_reset,
 	},
-	[AP_STATE_SUSPEND_WAIT] = {
-		[AP_EVENT_POLL] = ap_sm_suspend_read,
-		[AP_EVENT_TIMEOUT] = ap_sm_nop,
-	},
 	[AP_STATE_REMOVE] = {
 		[AP_EVENT_POLL] = ap_sm_nop,
 		[AP_EVENT_TIMEOUT] = ap_sm_nop,
@@ -450,28 +421,6 @@ enum ap_wait ap_sm_event_loop(struct ap_queue *aq, enum ap_event event)
 }
 
 /*
- * Power management for queue devices
- */
-void ap_queue_suspend(struct ap_device *ap_dev)
-{
-	struct ap_queue *aq = to_ap_queue(&ap_dev->device);
-
-	/* Poll on the device until all requests are finished. */
-	spin_lock_bh(&aq->lock);
-	aq->state = AP_STATE_SUSPEND_WAIT;
-	while (ap_sm_event(aq, AP_EVENT_POLL) != AP_WAIT_NONE)
-		;
-	aq->state = AP_STATE_BORKED;
-	spin_unlock_bh(&aq->lock);
-}
-EXPORT_SYMBOL(ap_queue_suspend);
-
-void ap_queue_resume(struct ap_device *ap_dev)
-{
-}
-EXPORT_SYMBOL(ap_queue_resume);
-
-/*
  * AP queue related attributes.
  */
 static ssize_t request_count_show(struct device *dev,