forked from luck/tmp_suning_uos_patched
drm: track CEA version number if present
Drivers need to know the CEA version number in addition to other display info (like whether the display is an HDMI sink) before enabling certain features. So track the CEA version number in the display info structure. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
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@ -1439,6 +1439,8 @@ EXPORT_SYMBOL(drm_detect_monitor_audio);
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static void drm_add_display_info(struct edid *edid,
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struct drm_display_info *info)
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{
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u8 *edid_ext;
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info->width_mm = edid->width_cm * 10;
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info->height_mm = edid->height_cm * 10;
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@ -1483,6 +1485,13 @@ static void drm_add_display_info(struct edid *edid,
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info->color_formats = DRM_COLOR_FORMAT_YCRCB444;
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if (info->color_formats & DRM_EDID_FEATURE_RGB_YCRCB422)
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info->color_formats = DRM_COLOR_FORMAT_YCRCB422;
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/* Get data from CEA blocks if present */
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edid_ext = drm_find_cea_extension(edid);
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if (!edid_ext)
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return;
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info->cea_rev = edid_ext[1];
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}
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/**
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@ -205,6 +205,8 @@ struct drm_display_info {
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enum subpixel_order subpixel_order;
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u32 color_formats;
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u8 cea_rev;
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char *raw_edid; /* if any */
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};
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