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authorJesse Barnes <jbarnes@virtuousgeek.org>2011-08-03 09:22:54 -0700
committerKeith Packard <keithp@keithp.com>2011-08-03 17:43:10 -0700
commitebec9a7bf11f843b0602b06c402f04bf4213b35a (patch)
treedc99677c052f3a24bf55a87f9b88067f3de70102
parent4e20fa65a3ea789510eed1a15deb9e8aab2b8202 (diff)
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>
-rw-r--r--drivers/gpu/drm/drm_edid.c9
-rw-r--r--include/drm/drm_crtc.h2
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 09292193daf..e12f8b0cec9 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -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];
}
/**
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 33d12f87f0e..d515bc8f4ba 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -205,6 +205,8 @@ struct drm_display_info {
enum subpixel_order subpixel_order;
u32 color_formats;
+ u8 cea_rev;
+
char *raw_edid; /* if any */
};