The rockchip iommu driver references its of_device_id table
from the init function, which fails to build when the table
is undefined:
iommu/rockchip-iommu.c: In function 'rk_iommu_init':
iommu/rockchip-iommu.c:1029:35: error: 'rk_iommu_dt_ids' undeclared (first use in this function)
  np = of_find_matching_node(NULL, rk_iommu_dt_ids);
This removes the #ifdef and the corresponding of_match_ptr wrapper
to make it build both with CONFIG_OF enabled or disabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 425061b0f5074 ("iommu/rockchip: Play nice in multi-platform builds")
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
        return 0;
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id rk_iommu_dt_ids[] = {
        { .compatible = "rockchip,iommu" },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, rk_iommu_dt_ids);
-#endif
 
 static struct platform_driver rk_iommu_driver = {
        .probe = rk_iommu_probe,
        .remove = rk_iommu_remove,
        .driver = {
                   .name = "rk_iommu",
-                  .of_match_table = of_match_ptr(rk_iommu_dt_ids),
+                  .of_match_table = rk_iommu_dt_ids,
        },
 };