From e22f0e3fdc2b5b3a399df29c3b5991e35b690320 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 26 Jun 2013 23:49:11 +0100 Subject: DMA-API: staging: et131x: replace dma_set_mask()+dma_set_coherent_mask() with new helper Replace the following sequence: dma_set_mask(dev, mask); dma_set_coherent_mask(dev, mask); with a call to the new helper dma_set_mask_and_coherent(). Signed-off-by: Russell King --- drivers/staging/et131x/et131x.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) (limited to 'drivers/staging') diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c index f73e58f5ef8d..61da7ee36e45 100644 --- a/drivers/staging/et131x/et131x.c +++ b/drivers/staging/et131x/et131x.c @@ -4797,21 +4797,8 @@ static int et131x_pci_setup(struct pci_dev *pdev, pci_set_master(pdev); /* Check the DMA addressing support of this device */ - if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) { - rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64)); - if (rc < 0) { - dev_err(&pdev->dev, - "Unable to obtain 64 bit DMA for consistent allocations\n"); - goto err_release_res; - } - } else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { - rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); - if (rc < 0) { - dev_err(&pdev->dev, - "Unable to obtain 32 bit DMA for consistent allocations\n"); - goto err_release_res; - } - } else { + if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) && + dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) { dev_err(&pdev->dev, "No usable DMA addressing method\n"); rc = -EIO; goto err_release_res; -- cgit v1.2.1 From 68788979c2fbb1ce8691757b9d27231b4c5d08a8 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 26 Jun 2013 23:49:11 +0100 Subject: DMA-API: media: dt3155v4l: replace dma_set_mask()+dma_set_coherent_mask() with new helper Replace the following sequence: dma_set_mask(dev, mask); dma_set_coherent_mask(dev, mask); with a call to the new helper dma_set_mask_and_coherent(). Acked-by: Hans Verkuil Acked-by: Mauro Carvalho Chehab Signed-off-by: Russell King --- drivers/staging/media/dt3155v4l/dt3155v4l.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/staging') diff --git a/drivers/staging/media/dt3155v4l/dt3155v4l.c b/drivers/staging/media/dt3155v4l/dt3155v4l.c index 90d6ac469355..081407be33ab 100644 --- a/drivers/staging/media/dt3155v4l/dt3155v4l.c +++ b/drivers/staging/media/dt3155v4l/dt3155v4l.c @@ -901,10 +901,7 @@ dt3155_probe(struct pci_dev *pdev, const struct pci_device_id *id) int err; struct dt3155_priv *pd; - err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); - if (err) - return -ENODEV; - err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (err) return -ENODEV; pd = kzalloc(sizeof(*pd), GFP_KERNEL); -- cgit v1.2.1 From 4cdbb4ff7fe456c43e9d6c6397e37380ff292520 Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 10 Jun 2013 16:56:16 +0100 Subject: 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 --- drivers/staging/dwc2/platform.c | 5 +++-- drivers/staging/imx-drm/imx-drm-core.c | 8 ++++++-- drivers/staging/imx-drm/ipuv3-crtc.c | 4 +++- 3 files changed, 12 insertions(+), 5 deletions(-) (limited to 'drivers/staging') diff --git a/drivers/staging/dwc2/platform.c b/drivers/staging/dwc2/platform.c index 44cce2fa6361..1d68c49afabe 100644 --- a/drivers/staging/dwc2/platform.c +++ b/drivers/staging/dwc2/platform.c @@ -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) { diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c index 47c5888461ff..847f430168d5 100644 --- a/drivers/staging/imx-drm/imx-drm-core.c +++ b/drivers/staging/imx-drm/imx-drm-core.c @@ -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; diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c index 6fd37a7453e9..9e73e8d8c9aa 100644 --- a/drivers/staging/imx-drm/ipuv3-crtc.c +++ b/drivers/staging/imx-drm/ipuv3-crtc.c @@ -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) -- cgit v1.2.1