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DMA-API: staging: use dma_set_coherent_mask() 

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.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2013-06-10 16:56:16 +01:00
parent e1fd734183
commit 4cdbb4ff7f
3 changed files with 12 additions and 5 deletions
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5
drivers/staging/dwc2/platform.c
View File

@ -100,8 +100,9 @@ static int dwc2_driver_probe(struct platform_device *dev)
*/
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);
retval = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32));
if (retval)
return retval;
irq = platform_get_irq(dev, 0);
if (irq < 0) {

8
drivers/staging/imx-drm/imx-drm-core.c
View File

@ -805,6 +805,12 @@ static struct drm_driver imx_drm_driver = {
static int imx_drm_platform_probe(struct platform_device *pdev)
{
int ret;
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
imx_drm_device->dev = &pdev->dev;
return drm_platform_init(&imx_drm_driver, pdev);
@ -847,8 +853,6 @@ static int __init imx_drm_init(void)
goto err_pdev;
}
imx_drm_pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32),
ret = platform_driver_register(&imx_drm_pdrv);
if (ret)
goto err_pdrv;

4
drivers/staging/imx-drm/ipuv3-crtc.c
View File

@ -523,7 +523,9 @@ static int ipu_drm_probe(struct platform_device *pdev)
if (!pdata)
return -EINVAL;
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
ipu_crtc = devm_kzalloc(&pdev->dev, sizeof(*ipu_crtc), GFP_KERNEL);
if (!ipu_crtc)