1 /*
2  * Common code for Allwinner SimpleFB with pipeline.
3  *
4  * (C) Copyright 2013-2014 Luc Verhaegen <libv@skynet.be>
5  * (C) Copyright 2014-2015 Hans de Goede <hdegoede@redhat.com>
6  * (C) Copyright 2017 Icenowy Zheng <icenowy@aosc.io>
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 #include <fdtdec.h>
12 
13 int sunxi_simplefb_fdt_match(void *blob, const char *pipeline)
14 {
15 	int offset, ret;
16 
17 	/* Find a prefilled simpefb node, matching out pipeline config */
18 	offset = fdt_node_offset_by_compatible(blob, -1,
19 					       "allwinner,simple-framebuffer");
20 	while (offset >= 0) {
21 		ret = fdt_stringlist_search(blob, offset, "allwinner,pipeline",
22 					    pipeline);
23 		if (ret == 0)
24 			break;
25 		offset = fdt_node_offset_by_compatible(blob, offset,
26 						"allwinner,simple-framebuffer");
27 	}
28 
29 	return offset;
30 }
31