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drm: Clarify vblank ts/scanoutpos sampling #defines

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I've read INVBL as "invalid backlight" and got mightly confused.
The #defines are already fairly long and we can afford to extend
them a bit more without resulting in ugly code all over.

I'm not sure how useful the complicated bitmask return value of these
functions really are since no one checks them. But for now let's keep
things as is.

Cc: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter
2014-09-10 17:36:11 +02:00
parent fb446a1acd
commit 3d3cbd8430
6 changed files with 8 additions and 8 deletions
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2
drivers/gpu/drm/radeon/radeon_display.c
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@@ -1917,7 +1917,7 @@ int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, unsigned int fl
/* In vblank? */
if (in_vbl)
ret |= DRM_SCANOUTPOS_INVBL;
ret |= DRM_SCANOUTPOS_IN_VBLANK;
/* Is vpos outside nominal vblank area, but less than
* 1/100 of a frame height away from start of vblank?