[Intel-gfx] [PATCH] drm/i915/edp: Only use alternate fixed mode when requested

[clinton.a.taylor at intel.com]

From: Clint Taylor <clinton.a.taylor at intel.com>

In commit dc911f5bd8aa ("drm/i915/edp: Allow alternate fixed mode for eDP
if available."), the patch was always selecting the alternate refresh rate
even though user space was asking for the higher rate. This patch adds a
check for vrefresh rate as well as the rest of the mode geometry.

Fixes: dc911f5bd8aac ("Allow alternate fixed mode for eDP if available.")
Cc: David Weinehall <david.weinehall at linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 62f82c4..c4c0e79 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1681,7 +1681,8 @@ static bool intel_edp_compare_alt_mode(struct drm_display_mode *m1,
 			m1->vdisplay == m2->vdisplay &&
 			m1->vsync_start == m2->vsync_start &&
 			m1->vsync_end == m2->vsync_end &&
-			m1->vtotal == m2->vtotal);
+			m1->vtotal == m2->vtotal &&
+			m1->vrefresh == m2->vrefresh);
 	return bres;
 }
 
-- 
1.9.1