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drm/i915: Use min() instead of hand rolling it

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Most places in the vblank code use min() to clamp scanline
counters below vtotal. But we missed one in the gen3/4
pixel counter based codepath.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230404175431.23064-3-ville.syrjala@linux.intel.com
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
This commit is contained in:
Ville Syrjälä
2023-04-04 20:54:31 +03:00
parent 435db526a6
commit e13b3f65af
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/i915/display/intel_vblank.c
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@ -340,8 +340,7 @@ static bool i915_get_crtc_scanoutpos(struct drm_crtc *_crtc,
* matches how the scanline counter based position works since
* the scanline counter doesn't count the two half lines.
*/
if (position >= vtotal)
position = vtotal - 1;
position = min(position, vtotal - 1);
/*
* Start of vblank interrupt is triggered at start of hsync,