rk fb: fix dts name for vop big and vop little mmu name

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index d0cc4582400d0870957583e639ac71c26910e72b..5d4d7ebf58f1a3b736a4d9890aa1933b251f4c80 100755 (executable)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -2889,7 +2889,7 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                fbi->pseudo_palette = dev_drv->win[i]->pseudo_pal;
                if (i == 0){ /* only alloc memory for main fb*/
                #ifdef CONFIG_ROCKCHIP_IOMMU
-                       mmu_dev = rockchip_get_sysmmu_device_by_compatible("iommu,vopl_mmu");
+                       mmu_dev = rockchip_get_sysmmu_device_by_compatible(dev_drv->mmu_dts_name);
                        if (mmu_dev) {
                                platform_set_sysmmu(mmu_dev, dev_drv->dev);
                                rockchip_sysmmu_set_fault_handler(dev_drv->dev, rk_fb_sysmmu_fault_handler);