libata: Add 32bit PIO support
This matters for some controllers and in one or two cases almost doubles
PIO performance. Add a bmdma32 operations set we can inherit and activate
it for some controllers
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 7865954..887d8f4 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -310,7 +310,7 @@
};
static struct ata_port_operations piix_pata_ops = {
- .inherits = &ata_bmdma_port_ops,
+ .inherits = &ata_bmdma32_port_ops,
.cable_detect = ata_cable_40wire,
.set_piomode = piix_set_piomode,
.set_dmamode = piix_set_dmamode,
