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authorTejun Heo <tj@kernel.org>2010-05-10 23:41:33 +0400
committerJeff Garzik <jgarzik@redhat.com>2010-05-19 21:31:29 +0400
commit8930ff254a3a80d4477c3391ade07d6dd2a036c7 (patch)
tree2c83672d48fbe306d6968f9f54b0d80fb736d5f9 /drivers/ata/pata_icside.c
parent9f2f72107ff621fdf3066e5a1b5ecb03ee587ebc (diff)
downloadlinux-8930ff254a3a80d4477c3391ade07d6dd2a036c7.tar.xz
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>
Diffstat (limited to 'drivers/ata/pata_icside.c')
-rw-r--r--drivers/ata/pata_icside.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c
index fa812e206eeb..832c8ccd0e80 100644
--- a/drivers/ata/pata_icside.c
+++ b/drivers/ata/pata_icside.c
@@ -321,7 +321,7 @@ static void pata_icside_postreset(struct ata_link *link, unsigned int *classes)
}
static struct ata_port_operations pata_icside_port_ops = {
- .inherits = &ata_sff_port_ops,
+ .inherits = &ata_bmdma_port_ops,
/* no need to build any PRD tables for DMA */
.qc_prep = ata_noop_qc_prep,
.sff_data_xfer = ata_sff_data_xfer_noirq,
@@ -334,6 +334,8 @@ static struct ata_port_operations pata_icside_port_ops = {
.set_dmamode = pata_icside_set_dmamode,
.postreset = pata_icside_postreset,
.post_internal_cmd = pata_icside_bmdma_stop,
+
+ .mode_filter = ATA_OP_NULL, /* will be removed soon */
};
static void __devinit