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ata: sata_dwc_460ex: don't call ata_sff_qc_issue() on DMA commands 

ata_sff_qc_issue() can't handle DMA commands and thus we have to avoid it for
them. Do call ata_bmdma_qc_issue() instead for this case. Note that the former
one distinguishes PIO and DMA mode and behaves accordingly.

Suggested-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Andy Shevchenko 2016-04-26 12:03:09 +03:00 committed by Tejun Heo
parent ae4c3485fa
commit 077028ecc9
1 changed files with 2 additions and 2 deletions
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4
drivers/ata/sata_dwc_460ex.c
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@ -1061,10 +1061,10 @@ static unsigned int sata_dwc_qc_issue(struct ata_queued_cmd *qc)
__func__, tag, qc->ap->link.sactive, sactive);
ap->ops->sff_tf_load(ap, &qc->tf);
sata_dwc_exec_command_by_tag(ap, &qc->tf, qc->tag,
sata_dwc_exec_command_by_tag(ap, &qc->tf, tag,
SATA_DWC_CMD_ISSUED_PEND);
} else {
ata_sff_qc_issue(qc);
return ata_bmdma_qc_issue(qc);
}
return 0;
}