device property: ACPI: Make use of the new DMA Attribute APIs

[deliverable/linux.git] / drivers / crypto / ccp / ccp-platform.c

diff --git a/drivers/crypto/ccp/ccp-platform.c b/drivers/crypto/ccp/ccp-platform.c
index bb241c3ab6b9cad5fec5ed22f4a9f96b5d7da551..844118cb31a34e565fea4ab46ffbf981d7ad1caf 100644 (file)
--- a/drivers/crypto/ccp/ccp-platform.c
+++ b/drivers/crypto/ccp/ccp-platform.c
@@ -96,6 +96,7 @@ static int ccp_platform_probe(struct platform_device *pdev)
        struct ccp_platform *ccp_platform;
        struct device *dev = &pdev->dev;
        struct acpi_device *adev = ACPI_COMPANION(dev);
+       enum dev_dma_attr attr;
        struct resource *ior;
        int ret;
 
@@ -122,18 +123,24 @@ static int ccp_platform_probe(struct platform_device *pdev)
        }
        ccp->io_regs = ccp->io_map;
 
-       ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
-       if (ret) {
-               dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
+       attr = device_get_dma_attr(dev);
+       if (attr == DEV_DMA_NOT_SUPPORTED) {
+               dev_err(dev, "DMA is not supported");
                goto e_err;
        }
 
-       ccp_platform->coherent = device_dma_is_coherent(ccp->dev);
+       ccp_platform->coherent = (attr == DEV_DMA_COHERENT);
        if (ccp_platform->coherent)
                ccp->axcache = CACHE_WB_NO_ALLOC;
        else
                ccp->axcache = CACHE_NONE;
 
+       ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
+       if (ret) {
+               dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
+               goto e_err;
+       }
+
        dev_set_drvdata(dev, ccp);
 
        ret = ccp_init(ccp);