855 	struct drm_fb_helper_surface_size sizes;  in drm_fb_helper_single_fb_probe()  local
858 	memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size));  in drm_fb_helper_single_fb_probe()
859 	sizes.surface_depth = 24;  in drm_fb_helper_single_fb_probe()
860 	sizes.surface_bpp = 32;  in drm_fb_helper_single_fb_probe()
861 	sizes.fb_width = (unsigned)-1;  in drm_fb_helper_single_fb_probe()
862 	sizes.fb_height = (unsigned)-1;  in drm_fb_helper_single_fb_probe()
866 	if (preferred_bpp != sizes.surface_bpp)  in drm_fb_helper_single_fb_probe()
867 		sizes.surface_depth = sizes.surface_bpp = preferred_bpp;  in drm_fb_helper_single_fb_probe()
879 				sizes.surface_depth = sizes.surface_bpp = 8;  in drm_fb_helper_single_fb_probe()
882 				sizes.surface_depth = 15;  in drm_fb_helper_single_fb_probe()
883 				sizes.surface_bpp = 16;  in drm_fb_helper_single_fb_probe()
886 				sizes.surface_depth = sizes.surface_bpp = 16;  in drm_fb_helper_single_fb_probe()
889 				sizes.surface_depth = sizes.surface_bpp = 24;  in drm_fb_helper_single_fb_probe()
892 				sizes.surface_depth = 24;  in drm_fb_helper_single_fb_probe()
893 				sizes.surface_bpp = 32;  in drm_fb_helper_single_fb_probe()
908 			if (desired_mode->hdisplay < sizes.fb_width)  in drm_fb_helper_single_fb_probe()
909 				sizes.fb_width = desired_mode->hdisplay;  in drm_fb_helper_single_fb_probe()
910 			if (desired_mode->vdisplay < sizes.fb_height)  in drm_fb_helper_single_fb_probe()
911 				sizes.fb_height = desired_mode->vdisplay;  in drm_fb_helper_single_fb_probe()
912 			if (desired_mode->hdisplay > sizes.surface_width)  in drm_fb_helper_single_fb_probe()
913 				sizes.surface_width = desired_mode->hdisplay;  in drm_fb_helper_single_fb_probe()
914 			if (desired_mode->vdisplay > sizes.surface_height)  in drm_fb_helper_single_fb_probe()
915 				sizes.surface_height = desired_mode->vdisplay;  in drm_fb_helper_single_fb_probe()
920 	if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) {  in drm_fb_helper_single_fb_probe()
924 		sizes.fb_width = sizes.surface_width = 1024;  in drm_fb_helper_single_fb_probe()
925 		sizes.fb_height = sizes.surface_height = 768;  in drm_fb_helper_single_fb_probe()
929 	ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);  in drm_fb_helper_single_fb_probe()