drm/i915: Use DIV_ROUND_CLOSEST()
vlv_find_best_dpll() has an open coded DIV_ROUND_CLOSEST(). Replace it
with the real thing.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index fcf2296..76870f0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -695,8 +695,7 @@
p = p1 * p2;
/* based on hardware requirement, prefer bigger m1,m2 values */
for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) {
- m2 = (((2*(fastclk * p * n / m1 )) +
- refclk) / (2*refclk));
+ m2 = DIV_ROUND_CLOSEST(fastclk * p * n, refclk * m1);
m = m1 * m2;
vco = updrate * m;