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DMA-API: usb: use dma_set_coherent_mask()

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The correct way for a driver to specify the coherent DMA mask is
not to directly access the field in the struct device, but to use
dma_set_coherent_mask().  Only arch and bus code should access this
member directly.

Convert all direct write accesses to using the correct API.

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2013-06-10 16:28:49 +01:00
parent 93b11b2584
commit 22d9d8e831
19 changed files with 64 additions and 38 deletions
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7
drivers/usb/host/ehci-platform.c
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@@ -78,7 +78,7 @@ static int ehci_platform_probe(struct platform_device *dev)
struct resource *res_mem;
struct usb_ehci_pdata *pdata;
int irq;
int err = -ENOMEM;
int err;
if (usb_disabled())
return -ENODEV;
@@ -91,8 +91,9 @@ static int ehci_platform_probe(struct platform_device *dev)
dev->dev.platform_data = &ehci_platform_defaults;
if (!dev->dev.dma_mask)
dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
if (!dev->dev.coherent_dma_mask)
dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
err = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32));
if (err)
return err;
pdata = dev_get_platdata(&dev->dev);