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path: root/drivers/gpu/drm/drm_edid.c
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Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
-rw-r--r--drivers/gpu/drm/drm_edid.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 6840f0530a38..a82f37d44258 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3738,6 +3738,34 @@ drm_add_cmdb_modes(struct drm_connector *connector, u8 svd)
bitmap_set(hdmi->y420_cmdb_modes, vic, 1);
}
+/**
+ * drm_display_mode_from_cea_vic() - return a mode for CEA VIC
+ * @dev: DRM device
+ * @vic: CEA VIC of the mode
+ *
+ * Creates a new mode matching the specified CEA VIC.
+ *
+ * Returns: A new drm_display_mode on success or NULL on failure
+ */
+struct drm_display_mode *
+drm_display_mode_from_cea_vic(struct drm_device *dev,
+ u8 video_code)
+{
+ const struct drm_display_mode *cea_mode;
+ struct drm_display_mode *newmode;
+
+ cea_mode = cea_mode_for_vic(video_code);
+ if (!cea_mode)
+ return NULL;
+
+ newmode = drm_mode_duplicate(dev, cea_mode);
+ if (!newmode)
+ return NULL;
+
+ return newmode;
+}
+EXPORT_SYMBOL(drm_display_mode_from_cea_vic);
+
static int
do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)
{