Revert "bcm2708_fb: Hack out dma support"

This reverts commit d60956f30586ced37e2152f2ba338f547e6c64f7.

diff --git a/drivers/video/fbdev/bcm2708_fb.c b/drivers/video/fbdev/bcm2708_fb.c
index 135260c..4732cb1 100644 (file)
--- a/drivers/video/fbdev/bcm2708_fb.c
+++ b/drivers/video/fbdev/bcm2708_fb.c
@@ -657,8 +657,6 @@ static long vc_mem_copy(struct bcm2708_fb *fb, struct fb_dmacopy *ioparam)
        long rc = 0;
        size_t offset;
 
-return -EFAULT;
-
        /* restrict this to root user */
        if (!uid_eq(current_euid(), GLOBAL_ROOT_UID)) {
                rc = -EFAULT;
@@ -1111,7 +1109,6 @@ static int bcm2708_fb_probe(struct platform_device *dev)
 
        dev_info(&dev->dev, "FB found %d display(s)\n", num_displays);
 
-#if 0
        /* Set up the DMA information. Note we have just one set of DMA
         * parameters to work with all the FB's so requires synchronising when
         * being used
@@ -1144,7 +1141,7 @@ static int bcm2708_fb_probe(struct platform_device *dev)
                        "Failed to request DMA irq\n");
                goto free_dma_chan;
        }
-#endif
+
        rpi_firmware_property(fbdev->fw,
                              RPI_FIRMWARE_GET_VC_MEMORY,
                              &gpu_mem, sizeof(gpu_mem));