rk fb: if uboot-logo-on set 1, open iommu when iommu en

Signed-off-by: hjc <hjc@rock-chips.com>

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 6fee0df9a27bce61fda52672922d27ac5a9604ad..d9fc6ebdb787accb34caa3c891fc53e2d7331d5e 100755 (executable)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -3810,6 +3810,12 @@ int rk_fb_register(struct rk_lcdc_driver *dev_drv,
                                freed_index = 0;
                        }
                        return 0;
+               } else {
+                       if (dev_drv->iommu_enabled) {
+                               if (dev_drv->ops->mmu_en)
+                                       dev_drv->ops->mmu_en(dev_drv);
+                               freed_index = 0;
+                       }
                }
 #if defined(CONFIG_LOGO)
                main_fbi->fbops->fb_set_par(main_fbi);