Checking if DMA is enabled should be done via the
ata_dma_enabled helper function, since the init state
0xff indicates disabled.
Change based on code review, not tested due to lack of hardware.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@xxxxxx>
---
drivers/ata/pata_radisys.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 8fde4a86401b..3aca8fe3fdb6 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -172,8 +172,8 @@ static unsigned int radisys_qc_issue(struct ata_queued_cmd *qc)
if (adev != ap->private_data) {
/* UDMA timing is not shared */
- if (adev->dma_mode < XFER_UDMA_0) {
- if (adev->dma_mode)
+ if (adev->dma_mode < XFER_UDMA_0 || !ata_dma_enabled(adev)) {
+ if (ata_dma_enabled(adev))
radisys_set_dmamode(ap, adev);
else if (adev->pio_mode)
radisys_set_piomode(ap, adev);
--
2.33.0
