[PATCH 3.2 083/110] ata: pmp: add quirk for Marvell 4140 SATA PMP

3.2.71-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Lior Amsalem <redacted>

commit 945b47441d83d2392ac9f984e0267ad521f24268 upstream.

This commit adds the necessary quirk to make the Marvell 4140 SATA PMP
work properly. This PMP doesn't like SRST on port number 4 (the host
port) so this commit marks this port as not supporting SRST.

Signed-off-by: Lior Amsalem <redacted>
Reviewed-by: Nadav Haklai <redacted>
Signed-off-by: Thomas Petazzoni <redacted>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ben Hutchings <redacted>
---
 drivers/ata/libata-pmp.c | 7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c

@@ -460,6 +460,13 @@ static void sata_pmp_quirks(struct ata_p
 				       ATA_LFLAG_NO_SRST |
 				       ATA_LFLAG_ASSUME_ATA;
 		}
+	} else if (vendor == 0x11ab && devid == 0x4140) {
+		/* Marvell 4140 quirks */
+		ata_for_each_link(link, ap, EDGE) {
+			/* port 4 is for SEMB device and it doesn't like SRST */
+			if (link->pmp == 4)
+				link->flags |= ATA_LFLAG_DISABLED;
+		}
 	}
 }