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drm: Use crtc_clock in drm_calc_timestamping_constants()

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drm_calc_timestamping_constants() computes the pixel/line/frame
durations based on the crtc_ timing values. The corresponding pixel
clock is in mode->crtc_clock, so we need to use that instead of
mode->clock.

This should fix drm_calc_timestamping_constants() for frame packing
stereo modes.

Reviewed-by: mario.kleiner.de@gmail.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2013-10-27 21:22:58 +02:00
parent 265d09aa82
commit 77666b7226
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_irq.c
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@ -451,7 +451,7 @@ void drm_calc_timestamping_constants(struct drm_crtc *crtc,
const struct drm_display_mode *mode)
{
s64 linedur_ns = 0, pixeldur_ns = 0, framedur_ns = 0;
int dotclock = mode->clock;
int dotclock = mode->crtc_clock;
/* Fields of interlaced scanout modes are only half a frame duration.
* Double the dotclock to get half the frame-/line-/pixelduration.