diff options
| author | Eric Benard <eric@eukrea.com> | 2014-04-04 19:05:56 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-04-15 12:23:57 +0200 |
| commit | e688a99c07337738dba9fb22a05b9d33eaac597c (patch) | |
| tree | 049cf3d9ad3e8f404dd24e18fd56a387a64d9abc /arch | |
| parent | 3cbeb0f004db555c58e81de24e23ff0b84d46ddc (diff) | |
imx-common/video: add detect_hdmi
this function is used by several board together with board_video_skip
to detect if hdmi is plugged is order to select the display to use.
So move it in imx-common to share it.
Signed-off-by: Eric Bénard <eric@eukrea.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/imx-common/video.c | 10 | ||||
| -rw-r--r-- | arch/arm/include/asm/imx-common/video.h | 4 |
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/imx-common/video.c b/arch/arm/imx-common/video.c index 098239a716..0121cd78f2 100644 --- a/arch/arm/imx-common/video.c +++ b/arch/arm/imx-common/video.c @@ -53,3 +53,13 @@ int board_video_skip(void) 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 diff --git a/arch/arm/include/asm/imx-common/video.h b/arch/arm/include/asm/imx-common/video.h index e0c4ef4508..2d948508d5 100644 --- a/arch/arm/include/asm/imx-common/video.h +++ b/arch/arm/include/asm/imx-common/video.h @@ -17,4 +17,8 @@ struct display_info_t { struct fb_videomode mode; }; +#ifdef CONFIG_IMX_HDMI +extern int detect_hdmi(struct display_info_t const *dev); +#endif + #endif |