VGA_FB_PHYS_SIZE
aperture_detach_devices(VGA_FB_PHYS_BASE, VGA_FB_PHYS_SIZE);
ret = devm_aperture_acquire_for_platform_device(dev, VGA_FB_PHYS_BASE, VGA_FB_PHYS_SIZE);
.smem_len = VGA_FB_PHYS_SIZE,