Commit 077028ec authored Apr 26, 2016 by Andy Shevchenko Committed by Tejun Heo May 10, 2016

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>

parent ae4c3485

drivers/ata/sata_dwc_460ex.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}