Some hardware doesn't want the usual mode setup logic running. This
allows the hardware driver to replace it for special cases in the least
invasive way possible.
Signed-off-by: Alan Cox <[email protected]> (and the previous diff)
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 1cb9813..18d5239 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1409,7 +1415,11 @@ static int ata_bus_probe(struct ata_port
if (!found)
goto err_out_disable;
- ata_set_mode(ap);
+ if (ap->ops->set_mode)
+ ap->ops->set_mode(ap);
+ else
+ ata_set_mode(ap);
+
if (ap->flags & ATA_FLAG_PORT_DISABLED)
goto err_out_disable;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 9fcc061..26e0351 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -429,6 +438,7 @@ struct ata_port_operations {
void (*dev_select)(struct ata_port *ap, unsigned int device);
void (*phy_reset) (struct ata_port *ap); /* obsolete */
+ void (*set_mode) (struct ata_port *ap);
int (*probe_reset) (struct ata_port *ap, unsigned int *classes);
void (*post_set_mode) (struct ata_port *ap);
-
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