Use the dma_set_mask_and_coherent helper to set the DMA mask. Rely
on the relatively recent change that setting a larger than required
mask will never fail to avoid the need for the boilerplate 32-bit
fallback code.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/ata/pdc_adma.c | 23 ++++-------------------
1 file changed, 4 insertions(+), 19 deletions(-)
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c
index 52fa8606a25f..965727af569b 100644
--- a/drivers/ata/pdc_adma.c
+++ b/drivers/ata/pdc_adma.c
@@ -573,23 +573,6 @@ static void adma_host_init(struct ata_host *host, unsigned int chip_id)
adma_reset_engine(host->ports[port_no]);
}
-static int adma_set_dma_masks(struct pci_dev *pdev, void __iomem *mmio_base)
-{
- int rc;
-
- rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (rc) {
- dev_err(&pdev->dev, "32-bit DMA enable failed\n");
- return rc;
- }
- rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (rc) {
- dev_err(&pdev->dev, "32-bit consistent DMA enable failed\n");
- return rc;
- }
- return 0;
-}
-
static int adma_ata_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
@@ -620,9 +603,11 @@ static int adma_ata_init_one(struct pci_dev *pdev,
host->iomap = pcim_iomap_table(pdev);
mmio_base = host->iomap[ADMA_MMIO_BAR];
- rc = adma_set_dma_masks(pdev, mmio_base);
- if (rc)
+ rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (rc) {
+ dev_err(&pdev->dev, "32-bit DMA enable failed\n");
return rc;
+ }
for (port_no = 0; port_no < ADMA_PORTS; ++port_no) {
struct ata_port *ap = host->ports[port_no];
--
2.20.1
