1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Common code for Allwinner SimpleFB with pipeline. 4 * 5 * (C) Copyright 2013-2014 Luc Verhaegen <libv@skynet.be> 6 * (C) Copyright 2014-2015 Hans de Goede <hdegoede@redhat.com> 7 * (C) Copyright 2017 Icenowy Zheng <icenowy@aosc.io> 8 */ 9 10#include <fdt_support.h> 11 12int sunxi_simplefb_fdt_match(void *blob, const char *pipeline) 13{ 14 int offset, ret; 15 16 /* Find a prefilled simpefb node, matching out pipeline config */ 17 offset = fdt_node_offset_by_compatible(blob, -1, 18 "allwinner,simple-framebuffer"); 19 fdt_for_each_node_by_compatible(offset, blob, -1, 20 "allwinner,simple-framebuffer") { 21 ret = fdt_stringlist_search(blob, offset, "allwinner,pipeline", 22 pipeline); 23 if (ret == 0) 24 break; 25 } 26 27 return offset; 28} 29