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

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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>
This commit is contained in:
Ville Syrjälä 2013-10-26 17:38:52 +03:00
parent 77666b7226
commit 3c184f6991
2 changed files with 10 additions and 10 deletions
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2
include/drm/drm_crtc.h
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@ -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;