libata-sff: clean up inheritance in several drivers
1. pata_cmd640 is PIO only. Inherit from sff.
2. pata_macio is BMDMA. Inherit from bmdma and drop explicit
bmdma_mode_filter() setting.
3. In sata_mv, unlike mv5, mv6 is BMDMA. Inherit from bmdma and
don't clear ->post_internal_cmd().
4. bf54x and icside are quasi-BMDMA controllers which don't use the
standard BMDMA registers so they don't initialize bmdma_addr and
inherit from sff to avoid the default mode_filter which disables
DMA modes if bmdma_addr is not initialized.
For 2 and 3, this patch makes the drivers explicitly specify
->mode_filter to ATA_OP_NULL while inheriting from ata_bmdma_port_ops.
These will be removed by the next patch.
This patch makes all and only BMDMA drivers inherit from
ata_bmdma_port_ops to ease further SFF/BMDMA separation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 318862e..a033710 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -686,16 +686,27 @@
};
static struct ata_port_operations mv6_ops = {
- .inherits = &mv5_ops,
- .dev_config = mv6_dev_config,
- .scr_read = mv_scr_read,
- .scr_write = mv_scr_write,
+ .inherits = &ata_bmdma_port_ops,
+ .lost_interrupt = ATA_OP_NULL,
+
+ .qc_defer = mv_qc_defer,
+ .qc_prep = mv_qc_prep,
+ .qc_issue = mv_qc_issue,
+
+ .dev_config = mv6_dev_config,
+
+ .freeze = mv_eh_freeze,
+ .thaw = mv_eh_thaw,
+ .hardreset = mv_hardreset,
+ .softreset = mv_softreset,
.pmp_hardreset = mv_pmp_hardreset,
.pmp_softreset = mv_softreset,
- .softreset = mv_softreset,
.error_handler = mv_pmp_error_handler,
+ .scr_read = mv_scr_read,
+ .scr_write = mv_scr_write,
+
.sff_check_status = mv_sff_check_status,
.sff_irq_clear = mv_sff_irq_clear,
.check_atapi_dma = mv_check_atapi_dma,
@@ -703,6 +714,11 @@
.bmdma_start = mv_bmdma_start,
.bmdma_stop = mv_bmdma_stop,
.bmdma_status = mv_bmdma_status,
+
+ .port_start = mv_port_start,
+ .port_stop = mv_port_stop,
+
+ .mode_filter = ATA_OP_NULL, /* will be removed soon */
};
static struct ata_port_operations mv_iie_ops = {