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| author | Tejun Heo <htejun@gmail.com> | 2008-04-07 15:47:18 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-17 21:44:22 +0200 |
| commit | 0aa1113d544226bc2c4a20d6ac1d71170512a361 (patch) | |
| tree | 503b33b0805424d312abddd3535c941bb85c03bc /drivers/ata/ahci.c | |
| parent | libata: clean up port_ops->sff_irq_clear() (diff) | |
| download | linux-0aa1113d544226bc2c4a20d6ac1d71170512a361.tar.xz linux-0aa1113d544226bc2c4a20d6ac1d71170512a361.zip | |
libata: separate out ata_std_prereset() from ata_sff_prereset()
Separate out generic ATA portion from ata_sff_prereset() into
ata_std_prereset() and implement ata_sff_prereset() using the std
version. Waiting for device readiness is the only SFF specific part.
ata_base_port_ops now has ata_std_prereset() for its prereset and
ata_sff_port_ops overrides it to ata_sff_prereset(). This change can
affect pdc_adma, ahci, sata_fsl and sata_sil24. pdc_adma implements
its own prereset using ata_sff_prereset() and the rest has hardreset
and thus are unaffected by this change.
This change reflects real world situation. There is no generic way to
wait for device readiness for non-SFF controllers and some of them
don't have any mechanism for that. Non-sff drivers which don't have
hardreset should wrap ata_std_prereset() and wait for device readiness
itself but there's no such driver now and isn't likely to be popular
in the future either.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/ahci.c')
0 files changed, 0 insertions, 0 deletions