From: John Garry Date: Tue, 6 Sep 2016 15:36:16 +0000 (+0800) Subject: scsi: hisi_sas: disable dlvry queues once at reset for v2 hw X-Git-Tag: v4.9-rc1~95^2~47 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d0df8f9ad549b8dda643a518fc1907abdaf33976;p=karo-tx-linux.git scsi: hisi_sas: disable dlvry queues once at reset for v2 hw The Delivery queue enable register should only be written to once at reset for v2 hw. Signed-off-by: John Garry Reviewed-by: Hannes Reinecke Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 25e7c58612c8..aca2b80a54b7 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++) {