This patch addresses the issue with ATA_CMD_SMART pio mode
command for enumeration and device detection with ATA devices.It is the
same issue as in patch

www.spinics.net/lists/linux-ide/msg49092.html

Signed-off-by: Suman Tripathi <[email protected]>
---
---
 drivers/ata/ahci_xgene.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 7f68875..506cf5f 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -211,7 +211,8 @@ static unsigned int xgene_ahci_qc_issue(struct 
ata_queued_cmd *qc)
        }

        if (unlikely((ctx->last_cmd[ap->port_no] == ATA_CMD_ID_ATA) ||
-           (ctx->last_cmd[ap->port_no] == ATA_CMD_PACKET)))
+           (ctx->last_cmd[ap->port_no] == ATA_CMD_PACKET) ||
+           (ctx->last_cmd[ap->port_no] == ATA_CMD_SMART)))
                xgene_ahci_restart_engine(ap);

        rc = ahci_qc_issue(qc);
--
1.8.2.1

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