1 // SPDX-License-Identifier: GPL-2.0+
2
3 #include <common.h>
4 #include <linux/errno.h>
5 #include <asm/mach-imx/video.h>
6
board_video_skip(void)7 int board_video_skip(void)
8 {
9 int i;
10 int ret;
11 char const *panel = env_get("panel");
12
13 if (!panel) {
14 for (i = 0; i < display_count; i++) {
15 struct display_info_t const *dev = displays+i;
16 if (dev->detect && dev->detect(dev)) {
17 panel = dev->mode.name;
18 printf("auto-detected panel %s\n", panel);
19 break;
20 }
21 }
22 if (!panel) {
23 panel = displays[0].mode.name;
24 printf("No panel detected: default to %s\n", panel);
25 i = 0;
26 }
27 } else {
28 for (i = 0; i < display_count; i++) {
29 if (!strcmp(panel, displays[i].mode.name))
30 break;
31 }
32 }
33
34 if (i < display_count) {
35 ret = ipuv3_fb_init(&displays[i].mode, displays[i].di ? 1 : 0,
36 displays[i].pixfmt);
37 if (!ret) {
38 if (displays[i].enable)
39 displays[i].enable(displays + i);
40
41 printf("Display: %s (%ux%u)\n",
42 displays[i].mode.name,
43 displays[i].mode.xres,
44 displays[i].mode.yres);
45 } else
46 printf("LCD %s cannot be configured: %d\n",
47 displays[i].mode.name, ret);
48 } else {
49 printf("unsupported panel %s\n", panel);
50 return -EINVAL;
51 }
52
53 return 0;
54 }
55
56 #ifdef CONFIG_IMX_HDMI
57 #include <asm/arch/mxc_hdmi.h>
58 #include <asm/io.h>
detect_hdmi(struct display_info_t const * dev)59 int detect_hdmi(struct display_info_t const *dev)
60 {
61 struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
62 return readb(&hdmi->phy_stat0) & HDMI_DVI_STAT;
63 }
64 #endif
65