imx-common: add board_video_skip
this function is shared by several boards and thus can be factorized
Signed-off-by: Eric Bénard <eric@eukrea.com>
Acked-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile
index b04dfbb..0e71395 100644
--- a/arch/arm/imx-common/Makefile
+++ b/arch/arm/imx-common/Makefile
@@ -19,6 +19,7 @@
endif
ifeq ($(SOC),$(filter $(SOC),mx6))
obj-$(CONFIG_CMD_SATA) += sata.o
+obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o
endif
obj-$(CONFIG_CMD_BMODE) += cmd_bmode.o
obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
diff --git a/arch/arm/imx-common/video.c b/arch/arm/imx-common/video.c
new file mode 100644
index 0000000..098239a
--- /dev/null
+++ b/arch/arm/imx-common/video.c
@@ -0,0 +1,55 @@
+/*
+ * 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;
+}
diff --git a/arch/arm/include/asm/imx-common/video.h b/arch/arm/include/asm/imx-common/video.h
new file mode 100644
index 0000000..e0c4ef4
--- /dev/null
+++ b/arch/arm/include/asm/imx-common/video.h
@@ -0,0 +1,20 @@
+/*
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __IMX_VIDEO_H_
+#define __IMX_VIDEO_H_
+
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>
+
+struct display_info_t {
+ int bus;
+ int addr;
+ int pixfmt;
+ int (*detect)(struct display_info_t const *dev);
+ void (*enable)(struct display_info_t const *dev);
+ struct fb_videomode mode;
+};
+
+#endif