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[06/15] hisi_sas: disable dlvry queues once at reset for v2 hw

Message ID 1473176185-217808-7-git-send-email-john.garry@huawei.com
State Accepted
Commit d0df8f9ad549b8dda643a518fc1907abdaf33976
Headers show

Commit Message

John Garry Sept. 6, 2016, 3:36 p.m. UTC 
The Delivery queue enable register should only be written
to once at reset for v2 hw.

Signed-off-by: John Garry <john.garry@huawei.com>

---
 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

-- 
1.9.1
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Patch

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 25e7c58..aca2b80 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -685,9 +685,7 @@  static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
 	else
 		reset_val = 0x7ffff;
 
-	/* Disable all of the DQ */
-	for (i = 0; i < HISI_SAS_MAX_QUEUES; i++)
-		hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
+	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
 
 	/* Disable all of the PHYs */
 	for (i = 0; i < hisi_hba->n_phy; i++) {