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Diffstat (limited to 'arch/arm/plat-mxc/devices.c')
-rw-r--r--arch/arm/plat-mxc/devices.c23
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/arm/plat-mxc/devices.c b/arch/arm/plat-mxc/devices.c
index 735776d84956..e9bcefe79a43 100644
--- a/arch/arm/plat-mxc/devices.c
+++ b/arch/arm/plat-mxc/devices.c
@@ -17,6 +17,7 @@
*/
#include <linux/kernel.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
@@ -36,9 +37,10 @@ int __init mxc_register_device(struct platform_device *pdev, void *data)
return ret;
}
-struct platform_device *__init imx_add_platform_device(const char *name, int id,
+struct platform_device *__init imx_add_platform_device_dmamask(
+ const char *name, int id,
const struct resource *res, unsigned int num_resources,
- const void *data, size_t size_data)
+ const void *data, size_t size_data, u64 dmamask)
{
int ret = -ENOMEM;
struct platform_device *pdev;
@@ -47,6 +49,23 @@ struct platform_device *__init imx_add_platform_device(const char *name, int id,
if (!pdev)
goto err;
+ if (dmamask) {
+ /*
+ * This memory isn't freed when the device is put,
+ * I don't have a nice idea for that though. Conceptually
+ * dma_mask in struct device should not be a pointer.
+ * See http://thread.gmane.org/gmane.linux.kernel.pci/9081
+ */
+ pdev->dev.dma_mask =
+ kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
+ if (!pdev->dev.dma_mask)
+ /* ret is still -ENOMEM; */
+ goto err;
+
+ *pdev->dev.dma_mask = dmamask;
+ pdev->dev.coherent_dma_mask = dmamask;
+ }
+
if (res) {
ret = platform_device_add_resources(pdev, res, num_resources);
if (ret)