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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>
This commit is contained in:
Eric Benard 2014-04-04 19:05:52 +02:00 committed by Stefano Babic
parent 1b82491ee6
commit 93ad66ced3
3 changed files with 76 additions and 0 deletions
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1
arch/arm/imx-common/Makefile
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@ -19,6 +19,7 @@ obj-y += misc.o
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

55
arch/arm/imx-common/video.c Normal file
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@ -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;
}

20
arch/arm/include/asm/imx-common/video.h Normal file
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@ -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