drm/doc: kerneldoc for quirk_addfb_prefer_xbgr_30bpp

Shuts up warning noise.

Reviewed-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181004202446.22905-22-daniel.vetter@ffwll.ch

diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h
index 928e4172a0bbe277058f5c791cfa9070eca9a9ca..d643d268693ee85e78874a3e3fd41de87b530bd3 100644 (file)
--- a/include/drm/drm_mode_config.h
+++ b/include/drm/drm_mode_config.h
@@ -809,6 +809,13 @@ struct drm_mode_config {
 
        /* dumb ioctl parameters */
        uint32_t preferred_depth, prefer_shadow;
+
+       /**
+        * @quirk_addfb_prefer_xbgr_30bpp:
+        *
+        * Special hack for legacy ADDFB to keep nouveau userspace happy. Should
+        * only ever be set by the nouveau kernel driver.
+        */
        bool quirk_addfb_prefer_xbgr_30bpp;
 
        /**