| From 15edfce0138aa427db84cf7239083acabb2b0bac Mon Sep 17 00:00:00 2001 |
| From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com> |
| Date: Tue, 24 Sep 2013 21:26:19 +0300 |
| Subject: drm/i915: Use DIV_ROUND_CLOSEST() |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| 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> |
| (cherry picked from commit 5de56df5c708f5d0d1bb2c156385a6740436affa) |
| Signed-off-by: Darren Hart <dvhart@linux.intel.com> |
| --- |
| drivers/gpu/drm/i915/intel_display.c | 3 +-- |
| 1 file changed, 1 insertion(+), 2 deletions(-) |
| |
| diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c |
| index 65318dbce96b..925d69044878 100644 |
| --- a/drivers/gpu/drm/i915/intel_display.c |
| +++ b/drivers/gpu/drm/i915/intel_display.c |
| @@ -695,8 +695,7 @@ vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc, |
| 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; |
| |
| -- |
| 1.8.5.rc3 |
| |
