diff options
| author | Christoph Hellwig <hch@lst.de> | 2019-08-26 13:57:20 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-08-26 22:58:58 +0300 |
| commit | 94c58148a6bcb1f2c342fb806409d35019b4bb12 (patch) | |
| tree | b3bf2d592856279731c1e9af5317418067736b97 /drivers/ata/pdc_adma.c | |
| parent | b1716871c00dd48a8efa8ee93007490c939fc8c3 (diff) | |
| download | linux-94c58148a6bcb1f2c342fb806409d35019b4bb12.tar.xz | |
pdc_adma: use dma_set_mask_and_coherent
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@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ata/pdc_adma.c')
| -rw-r--r-- | drivers/ata/pdc_adma.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c index c5bbb07aa7d9..cb490531b62e 100644 --- a/drivers/ata/pdc_adma.c +++ b/drivers/ata/pdc_adma.c @@ -572,23 +572,6 @@ 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) { @@ -619,9 +602,11 @@ 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]; |