Merge branch 'imx-for-2.6.38' of git://git.pengutronix.de/git/ukl/linux-2.6 into...

[karo-tx-linux.git] / arch / arm / plat-mxc / devices.c

diff --git a/arch/arm/plat-mxc/devices.c b/arch/arm/plat-mxc/devices.c
index 735776d8495636fd8e7429fc2d21b9797bd575ff..e9bcefe79a43d6edb1a18e8ade4b8b3f6bb83619 100644 (file)
--- 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)