Merge tag 'u-boot-amlogic-20200420' of https://gitlab.denx.de/u-boot/custodians/u...
[oweals/u-boot.git] / drivers / video / meson / simplefb_common.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Common code for Amlogic 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 <fdtdec.h>
11
12 int meson_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                                                "amlogic,simple-framebuffer");
19         while (offset >= 0) {
20                 ret = fdt_stringlist_search(blob, offset, "amlogic,pipeline",
21                                             pipeline);
22                 if (ret == 0)
23                         break;
24                 offset = fdt_node_offset_by_compatible(blob, offset,
25                                                 "amlogic,simple-framebuffer");
26         }
27
28         return offset;
29 }