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path: root/drivers/net/wireless/ath/wil6210/pcie_bus.c
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Diffstat (limited to 'drivers/net/wireless/ath/wil6210/pcie_bus.c')
-rw-r--r--drivers/net/wireless/ath/wil6210/pcie_bus.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index 9e622ddcc0bb..030878b89664 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -204,6 +204,8 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
.fw_recovery = wil_platform_rop_fw_recovery,
};
u32 bar_size = pci_resource_len(pdev, 0);
+ int dma_addr_size[] = {48, 40, 32}; /* keep descending order */
+ int i;
/* check HW */
dev_info(&pdev->dev, WIL_NAME
@@ -239,21 +241,23 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
/* rollback to err_plat */
- /* device supports 48bit addresses */
- rc = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
- if (rc) {
- dev_err(dev, "dma_set_mask_and_coherent(48) failed: %d\n", rc);
- rc = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+ /* device supports >32bit addresses */
+ for (i = 0; i < ARRAY_SIZE(dma_addr_size); i++) {
+ rc = dma_set_mask_and_coherent(dev,
+ DMA_BIT_MASK(dma_addr_size[i]));
if (rc) {
- dev_err(dev,
- "dma_set_mask_and_coherent(32) failed: %d\n",
- rc);
- goto err_plat;
+ dev_err(dev, "dma_set_mask_and_coherent(%d) failed: %d\n",
+ dma_addr_size[i], rc);
+ continue;
}
- } else {
- wil->use_extended_dma_addr = 1;
+ dev_info(dev, "using dma mask %d", dma_addr_size[i]);
+ wil->dma_addr_size = dma_addr_size[i];
+ break;
}
+ if (wil->dma_addr_size == 0)
+ goto err_plat;
+
rc = pci_enable_device(pdev);
if (rc && pdev->msi_enabled == 0) {
wil_err(wil,
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