media: sun4i: Remove the MBUS quirks

	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));