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Diffstat (limited to 'arch/arm/imx-common/video.c')
-rw-r--r--arch/arm/imx-common/video.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/imx-common/video.c b/arch/arm/imx-common/video.c
new file mode 100644
index 0000000000..0121cd78f2
--- /dev/null
+++ b/arch/arm/imx-common/video.c
@@ -0,0 +1,65 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/errno.h>
+#include <asm/imx-common/video.h>
+
+extern struct display_info_t const displays[];
+extern size_t display_count;
+
+int board_video_skip(void)
+{
+ int i;
+ int ret;
+ char const *panel = getenv("panel");
+ if (!panel) {
+ for (i = 0; i < display_count; i++) {
+ struct display_info_t const *dev = displays+i;
+ if (dev->detect && dev->detect(dev)) {
+ panel = dev->mode.name;
+ printf("auto-detected panel %s\n", panel);
+ break;
+ }
+ }
+ if (!panel) {
+ panel = displays[0].mode.name;
+ printf("No panel detected: default to %s\n", panel);
+ i = 0;
+ }
+ } else {
+ for (i = 0; i < display_count; i++) {
+ if (!strcmp(panel, displays[i].mode.name))
+ break;
+ }
+ }
+ if (i < display_count) {
+ ret = ipuv3_fb_init(&displays[i].mode, 0,
+ displays[i].pixfmt);
+ if (!ret) {
+ displays[i].enable(displays+i);
+ printf("Display: %s (%ux%u)\n",
+ displays[i].mode.name,
+ displays[i].mode.xres,
+ displays[i].mode.yres);
+ } else
+ printf("LCD %s cannot be configured: %d\n",
+ displays[i].mode.name, ret);
+ } else {
+ printf("unsupported panel %s\n", panel);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_IMX_HDMI
+#include <asm/arch/mxc_hdmi.h>
+#include <asm/io.h>
+int detect_hdmi(struct display_info_t const *dev)
+{
+ struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
+ return readb(&hdmi->phy_stat0) & HDMI_DVI_STAT;
+}
+#endif