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

From	John Garry <john.garry@huawei.com>
Newsgroups	linux.kernel
Subject	[PATCH 06/15] hisi_sas: disable dlvry queues once at reset for v2 hw
Date	2016-09-06 17:30 +0200
Message-ID	<seqtX-3JB-27@gated-at.bofh.it> (permalink)
References	<seqtX-3JB-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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(-)

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++) {
-- 
1.9.1

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[PATCH 06/15] hisi_sas: disable dlvry queues once at reset for v2 hw John Garry <john.garry@huawei.com> - 2016-09-06 17:30 +0200

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