[libata] sata_mv: Add a new mv_sff_check_status() function to sata_mv.

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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>

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Mark Lord 2009-02-25 15:17:43 -05:00 • committed by Jeff Garzik

parent 42ed893d80

commit d16ab3f633

1 changed files with 36 additions and 1 deletions

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drivers/ata/sata_mv.c

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