media: sun4i: Remove the MBUS quirks

Now that the MBUS quirks are applied by our global notifier, we can
remove them from our CSI driver for the A10.

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
index eb15c8c..ec46cff 100644 (file)
--- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
+++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
@@ -167,33 +167,6 @@ static int sun4i_csi_probe(struct platform_device *pdev)
        if (!csi->traits)
                return -EINVAL;
 
-       /*
-        * On Allwinner SoCs, some high memory bandwidth devices do DMA
-        * directly over the memory bus (called MBUS), instead of the
-        * system bus. The memory bus has a different addressing scheme
-        * without the DRAM starting offset.
-        *
-        * In some cases this can be described by an interconnect in
-        * the device tree. In other cases where the hardware is not
-        * fully understood and the interconnect is left out of the
-        * device tree, fall back to a default offset.
-        */
-       if (of_find_property(csi->dev->of_node, "interconnects", NULL)) {
-               ret = of_dma_configure(csi->dev, csi->dev->of_node, true);
-               if (ret)
-                       return ret;
-       } else {
-               /*
-                * XXX(hch): this has no business in a driver and needs to move
-                * to the device tree.
-                */
-#ifdef PHYS_PFN_OFFSET
-               ret = dma_direct_set_offset(csi->dev, PHYS_OFFSET, 0, SZ_4G);
-               if (ret)
-                       return ret;
-#endif
-       }
-
        csi->mdev.dev = csi->dev;
        strscpy(csi->mdev.model, "Allwinner Video Capture Device",
                sizeof(csi->mdev.model));