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path: root/drivers/crypto/ccp/ccp-platform.c
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Diffstat (limited to 'drivers/crypto/ccp/ccp-platform.c')
-rw-r--r--drivers/crypto/ccp/ccp-platform.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/crypto/ccp/ccp-platform.c b/drivers/crypto/ccp/ccp-platform.c
index 8b923b7e9389..01b50cb4c982 100644
--- a/drivers/crypto/ccp/ccp-platform.c
+++ b/drivers/crypto/ccp/ccp-platform.c
@@ -94,6 +94,7 @@ static int ccp_platform_probe(struct platform_device *pdev)
struct ccp_device *ccp;
struct ccp_platform *ccp_platform;
struct device *dev = &pdev->dev;
+ enum dev_dma_attr attr;
struct resource *ior;
int ret;
@@ -118,18 +119,24 @@ 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);