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| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2015-07-07 12:35:33 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-07-07 12:35:33 +0100 |
| commit | 06be5eefe1192eb8ce8d07497f67595b6bfe9741 (patch) | |
| tree | 80f1987d4970f8079681f8be0c135cafc8d6329a /drivers/crypto/ccp/ccp-platform.c | |
| parent | ARM: fix lockdep unannotated irqs-off warning (diff) | |
| parent | ARM: avoid unwanted GCC memset()/memcpy() optimisations for IO variants (diff) | |
| download | linux-dev-06be5eefe1192eb8ce8d07497f67595b6bfe9741.tar.xz linux-dev-06be5eefe1192eb8ce8d07497f67595b6bfe9741.zip | |
Merge branches 'fixes' and 'ioremap' into for-linus
Diffstat (limited to 'drivers/crypto/ccp/ccp-platform.c')
| -rw-r--r-- | drivers/crypto/ccp/ccp-platform.c | 62 |
1 files changed, 1 insertions, 61 deletions
diff --git a/drivers/crypto/ccp/ccp-platform.c b/drivers/crypto/ccp/ccp-platform.c index b1c20b2b5647..f2e6de361fd1 100644 --- a/drivers/crypto/ccp/ccp-platform.c +++ b/drivers/crypto/ccp/ccp-platform.c @@ -90,58 +90,6 @@ static struct resource *ccp_find_mmio_area(struct ccp_device *ccp) return NULL; } -#ifdef CONFIG_ACPI -static int ccp_acpi_support(struct ccp_device *ccp) -{ - struct ccp_platform *ccp_platform = ccp->dev_specific; - struct acpi_device *adev = ACPI_COMPANION(ccp->dev); - acpi_handle handle; - acpi_status status; - unsigned long long data; - int cca; - - /* Retrieve the device cache coherency value */ - handle = adev->handle; - do { - status = acpi_evaluate_integer(handle, "_CCA", NULL, &data); - if (!ACPI_FAILURE(status)) { - cca = data; - break; - } - } while (!ACPI_FAILURE(status)); - - if (ACPI_FAILURE(status)) { - dev_err(ccp->dev, "error obtaining acpi coherency value\n"); - return -EINVAL; - } - - ccp_platform->coherent = !!cca; - - return 0; -} -#else /* CONFIG_ACPI */ -static int ccp_acpi_support(struct ccp_device *ccp) -{ - return -EINVAL; -} -#endif - -#ifdef CONFIG_OF -static int ccp_of_support(struct ccp_device *ccp) -{ - struct ccp_platform *ccp_platform = ccp->dev_specific; - - ccp_platform->coherent = of_dma_is_coherent(ccp->dev->of_node); - - return 0; -} -#else -static int ccp_of_support(struct ccp_device *ccp) -{ - return -EINVAL; -} -#endif - static int ccp_platform_probe(struct platform_device *pdev) { struct ccp_device *ccp; @@ -174,21 +122,13 @@ static int ccp_platform_probe(struct platform_device *pdev) } ccp->io_regs = ccp->io_map; - if (!dev->dma_mask) - dev->dma_mask = &dev->coherent_dma_mask; 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; } - if (ccp_platform->use_acpi) - ret = ccp_acpi_support(ccp); - else - ret = ccp_of_support(ccp); - if (ret) - goto e_err; - + ccp_platform->coherent = device_dma_is_coherent(ccp->dev); if (ccp_platform->coherent) ccp->axcache = CACHE_WB_NO_ALLOC; else |