drm/modes: Add drm_mode_hsync()

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index d84fba15c9d8..938f327a2a3b 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -123,7 +123,7 @@ struct drm_display_mode {
         int type;
 
         /* Proposed mode values */
-        int clock;
+        int clock;              /* in kHz */
         int hdisplay;
         int hsync_start;
         int hsync_end;
@@ -164,8 +164,8 @@ struct drm_display_mode {
         int *private;
         int private_flags;
 
-        int vrefresh;
-        float hsync;
+        int vrefresh;           /* in Hz */
+        int hsync;              /* in kHz */
 };
 
 enum drm_connector_status {
@@ -681,6 +681,7 @@ extern void drm_mode_validate_size(struct drm_device *dev,
 extern void drm_mode_prune_invalid(struct drm_device *dev,
                                    struct list_head *mode_list, bool verbose);
 extern void drm_mode_sort(struct list_head *mode_list);
+extern int drm_mode_hsync(struct drm_display_mode *mode);
 extern int drm_mode_vrefresh(struct drm_display_mode *mode);
 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
                                   int adjust_flags);