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| author | Tejun Heo <tj@kernel.org> | 2010-05-10 21:41:33 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-05-19 13:31:29 -0400 |
| commit | 8930ff254a3a80d4477c3391ade07d6dd2a036c7 (patch) | |
| tree | 2c83672d48fbe306d6968f9f54b0d80fb736d5f9 /drivers/ata/pata_icside.c | |
| parent | 9f2f72107ff621fdf3066e5a1b5ecb03ee587ebc (diff) | |
| download | linux-8930ff254a3a80d4477c3391ade07d6dd2a036c7.tar.gz linux-8930ff254a3a80d4477c3391ade07d6dd2a036c7.tar.bz2 linux-8930ff254a3a80d4477c3391ade07d6dd2a036c7.zip | |
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.c | 4 |
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 |