libata-pmp: 4726 hates SRST

4726 hates SRST even on non-config ports.  Don't use it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index c0c4dbc..caef2bb 100644 (file)
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -495,14 +495,12 @@ static void sata_pmp_quirks(struct ata_port *ap)
                        /* SError.N need a kick in the ass to get working */
                        link->flags |= ATA_LFLAG_HRST_TO_RESUME;
 
-                       /* class code report is unreliable */
-                       if (link->pmp < 5)
-                               link->flags |= ATA_LFLAG_ASSUME_ATA;
-
-                       /* The config device, which can be either at
-                        * port 0 or 5, locks up on SRST.
+                       /* Class code report is unreliable and SRST
+                        * times out under certain configurations.
+                        * Config device can be at port 0 or 5 and
+                        * locks up on SRST.
                         */
-                       if (link->pmp == 0 || link->pmp == 5)
+                       if (link->pmp <= 5)
                                link->flags |= ATA_LFLAG_NO_SRST |
                                               ATA_LFLAG_ASSUME_ATA;