redonkable/alistair23-linux
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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
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/usb/chipidea/ci_hdrc_imx.c
View file

@ -123,8 +123,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
goto err_clk;
if (data->usbmisc_data) {
ret = imx_usbmisc_init(data->usbmisc_data);

5
drivers/usb/dwc3/dwc3-exynos.c
View file

@ -121,8 +121,9 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
*/
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
if (!dev->coherent_dma_mask)
dev->coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
if (ret)
goto err1;
platform_set_drvdata(pdev, exynos);

4
drivers/usb/gadget/lpc32xx_udc.c
View file

@ -3078,7 +3078,9 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
udc->isp1301_i2c_client->addr);
pdev->dev.dma_mask = &lpc32xx_usbd_dmamask;
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (retval)
goto resource_fail;
udc->board = &lpc32xx_usbddata;

5
drivers/usb/host/ehci-atmel.c
View file

@ -92,8 +92,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (retval)
goto fail_create_hcd;
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd) {

4
drivers/usb/host/ehci-octeon.c
View file

@ -116,8 +116,10 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev)
* We can DMA from anywhere. But the descriptors must be in
* the lower 4GB.
*/
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
pdev->dev.dma_mask = &ehci_octeon_dma_mask;
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
hcd = usb_create_hcd(&ehci_octeon_hc_driver, &pdev->dev, "octeon");
if (!hcd)

8
drivers/usb/host/ehci-omap.c
View file

@ -104,7 +104,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
struct resource *res;
struct usb_hcd *hcd;
void __iomem *regs;
int ret = -ENODEV;
int ret;
int irq;
int i;
struct omap_hcd *omap;
@ -146,9 +146,11 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
*/
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
if (!dev->coherent_dma_mask)
dev->coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
if (ret)
return ret;
ret = -ENODEV;
hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
dev_name(dev));
if (!hcd) {

5
drivers/usb/host/ehci-orion.c
View file

@ -182,8 +182,9 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (err)
goto err1;
if (!request_mem_region(res->start, resource_size(res),
ehci_orion_hc_driver.description)) {

7
drivers/usb/host/ehci-platform.c
View file

@ -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);

5
drivers/usb/host/ehci-s5p.c
View file

@ -91,8 +91,9 @@ static int s5p_ehci_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (err)
return err;
s5p_setup_vbus_gpio(pdev);

5
drivers/usb/host/ehci-spear.c
View file

@ -83,8 +83,9 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (retval)
goto fail;
usbh_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(usbh_clk)) {

5
drivers/usb/host/ehci-tegra.c
View file

@ -364,8 +364,9 @@ static int tegra_ehci_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (err)
return err;
hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev,
dev_name(&pdev->dev));

7
drivers/usb/host/ohci-at91.c
View file

@ -524,7 +524,7 @@ MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
static int ohci_at91_of_init(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
int i, gpio;
int i, gpio, ret;
enum of_gpio_flags flags;
struct at91_usbh_data *pdata;
u32 ports;
@ -538,8 +538,9 @@ static int ohci_at91_of_init(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)

5
drivers/usb/host/ohci-exynos.c
View file

@ -116,8 +116,9 @@ static int exynos_ohci_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (err)
return err;
exynos_ohci = devm_kzalloc(&pdev->dev, sizeof(struct exynos_ohci_hcd),
GFP_KERNEL);

4
drivers/usb/host/ohci-nxp.c
View file

@ -226,8 +226,10 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
return -EPROBE_DEFER;
}
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
goto fail_disable;
dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (nxp)\n", hcd_name);
if (usb_disabled()) {

4
drivers/usb/host/ohci-octeon.c
View file

@ -127,8 +127,10 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev)
}
/* Ohci is a 32-bit device. */
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
hcd = usb_create_hcd(&ohci_octeon_hc_driver, &pdev->dev, "octeon");
if (!hcd)

8
drivers/usb/host/ohci-omap3.c
View file

@ -132,7 +132,7 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
struct usb_hcd *hcd = NULL;
void __iomem *regs = NULL;
struct resource *res;
int ret = -ENODEV;
int ret;
int irq;
if (usb_disabled())
@ -168,9 +168,11 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
*/
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
if (!dev->coherent_dma_mask)
dev->coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
if (ret)
goto err_io;
ret = -ENODEV;
hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev,
dev_name(dev));
if (!hcd) {

6
drivers/usb/host/ohci-pxa27x.c
View file

@ -287,6 +287,7 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
struct pxaohci_platform_data *pdata;
u32 tmp;
int ret;
if (!np)
return 0;
@ -297,8 +298,9 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)

5
drivers/usb/host/ohci-spear.c
View file

@ -113,8 +113,9 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (retval)
goto fail;
usbh_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(usbh_clk)) {

5
drivers/usb/host/uhci-platform.c
View file

@ -77,8 +77,9 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
*/
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
if (!pdev->dev.coherent_dma_mask)
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (ret)
return ret;
hcd = usb_create_hcd(&uhci_platform_hc_driver, &pdev->dev,
pdev->name);