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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>
This commit is contained in:
Jesse Barnes 2011-08-03 09:22:54 -07:00 committed by Keith Packard
parent 4e20fa65a3
commit ebec9a7bf1
2 changed files with 11 additions and 0 deletions
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9
drivers/gpu/drm/drm_edid.c
View File

@ -1439,6 +1439,8 @@ EXPORT_SYMBOL(drm_detect_monitor_audio);
static void drm_add_display_info(struct edid *edid,
struct drm_display_info *info)
{
u8 *edid_ext;
info->width_mm = edid->width_cm * 10;
info->height_mm = edid->height_cm * 10;
@ -1483,6 +1485,13 @@ static void drm_add_display_info(struct edid *edid,
info->color_formats = DRM_COLOR_FORMAT_YCRCB444;
if (info->color_formats & DRM_EDID_FEATURE_RGB_YCRCB422)
info->color_formats = DRM_COLOR_FORMAT_YCRCB422;
/* Get data from CEA blocks if present */
edid_ext = drm_find_cea_extension(edid);
if (!edid_ext)
return;
info->cea_rev = edid_ext[1];
}
/**

2
include/drm/drm_crtc.h
View File

@ -205,6 +205,8 @@ struct drm_display_info {
enum subpixel_order subpixel_order;
u32 color_formats;
u8 cea_rev;
char *raw_edid; /* if any */
};