ata: enable quirk from jmicron JMB350 for JMB394

Without the patch the kernel generates the following error.

 ata11.15: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
 ata11.15: Port Multiplier vendor mismatch '0x197b' != '0x123'
 ata11.15: PMP revalidation failed (errno=-19)
 ata11.15: failed to recover PMP after 5 tries, giving up

This patch helps to bypass this error and the device becomes
functional.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: <linux-ide@vger.kernel.org>
Cc: stable@vger.kernel.org

diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index 20fd337..7ccc084 100644 (file)
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -447,8 +447,11 @@ static void sata_pmp_quirks(struct ata_port *ap)
                 * otherwise.  Don't try hard to recover it.
                 */
                ap->pmp_link[ap->nr_pmp_links - 1].flags |= ATA_LFLAG_NO_RETRY;
-       } else if (vendor == 0x197b && devid == 0x2352) {
-               /* chip found in Thermaltake BlackX Duet, jmicron JMB350? */
+       } else if (vendor == 0x197b && (devid == 0x2352 || devid == 0x0325)) {
+               /*
+                * 0x2352: found in Thermaltake BlackX Duet, jmicron JMB350?
+                * 0x0325: jmicron JMB394.
+                */
                ata_for_each_link(link, ap, EDGE) {
                        /* SRST breaks detection and disks get misclassified
                         * LPM disabled to avoid potential problems