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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>
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@ -53,3 +53,13 @@ int board_video_skip(void)
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return 0;
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return 0;
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}
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}
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#ifdef CONFIG_IMX_HDMI
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#include <asm/arch/mxc_hdmi.h>
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#include <asm/io.h>
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int detect_hdmi(struct display_info_t const *dev)
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{
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struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
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return readb(&hdmi->phy_stat0) & HDMI_DVI_STAT;
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}
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#endif
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@ -17,4 +17,8 @@ struct display_info_t {
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struct fb_videomode mode;
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struct fb_videomode mode;
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};
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};
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#ifdef CONFIG_IMX_HDMI
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extern int detect_hdmi(struct display_info_t const *dev);
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#endif
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#endif
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#endif
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