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| author |   Mark Lord <mlord@pobox.com> | 2009-02-25 15:17:43 -0500 |
|---|---|---|
| committer |   Jeff Garzik <jgarzik@redhat.com> | 2009-03-24 22:02:41 -0400 |
| commit | d16ab3f633b75aac1cf42b00355cd9aa65033dcc (patch) | |
| tree | ee2df8db3222f279f21e64188ff0d156aa7820a9 /drivers/ata/libata-core.c | |
| parent | [libata] sata_mv: Tighten up interrupt masking in mv_qc_issue() (diff) | |
| download | linux-dev-d16ab3f633b75aac1cf42b00355cd9aa65033dcc.tar.xz linux-dev-d16ab3f633b75aac1cf42b00355cd9aa65033dcc.zip | |
[libata] sata_mv: Add a new mv_sff_check_status() function to sata_mv.
This is necessary for use with the upcoming "mv_qc_issue_fis()" patch,
but is being added separately here for easier code review.
When using command issue via the "mv_qc_issue_fis()" mechanism,
the initial ATA_BUSY bit does not show in the ATA status (shadow) register.
This can confuse libata! So here we add a hook to fake ATA_BUSY
for that situation, until the first time a BUSY, DRQ, or ERR bit is seen.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata-core.c')
0 files changed, 0 insertions, 0 deletions