drm: Change {pixel,line,frame}dur_ns from s64 to int

Using s64 for the timestamping constants is wasteful. Signed 32bit
integers get us a range of over +-2 seconds. Presuming that no-one
wants to a vrefresh rate less than 0.5, we can switch to using int
for the timestamping constants. We save a few bytes in drm_crtc and
avoid a bunch of 64bit math.

Reviewed-by: mario.kleiner.de@gmail.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index f32c5cd51f41..a158ec0f97ab 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -447,7 +447,7 @@ struct drm_crtc {
         uint16_t *gamma_store;
 
         /* Constants needed for precise vblank and swap timestamping. */
-        s64 framedur_ns, linedur_ns, pixeldur_ns;
+        int framedur_ns, linedur_ns, pixeldur_ns;
 
         /* if you are using the helper */
         void *helper_private;