drm: Use crtc_clock in drm_calc_timestamping_constants()
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>
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 3283669..52a234c 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -451,7 +451,7 @@
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.