1 files changed, 1 insertions, 0 deletions

diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index e95a86b8b689..e5c607a02d57 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -907,6 +907,7 @@ struct drm_radeon_cs {
 #define RADEON_INFO_TILING_CONFIG       0x06
 #define RADEON_INFO_WANT_HYPERZ         0x07
 #define RADEON_INFO_WANT_CMASK          0x08 /* get access to CMASK on r300 */
+#define RADEON_INFO_CLOCK_CRYSTAL_FREQ  0x09 /* clock crystal frequency */
 
 struct drm_radeon_info {
         uint32_t                request;