1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d9c50ff94d76..64773ce52964 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -636,7 +636,7 @@ void
 intel_wait_for_vblank(struct drm_device *dev)
 {
         /* Wait for 20ms, i.e. one cycle at 50hz. */
-        udelay(20000);
+        mdelay(20);
 }
 
 static int
@@ -1106,6 +1106,26 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                 return -EINVAL;
         }
 
+        /* SDVO TV has fixed PLL values depend on its clock range,
+           this mirrors vbios setting. */
+        if (is_sdvo && is_tv) {
+                if (adjusted_mode->clock >= 100000
+                                && adjusted_mode->clock < 140500) {
+                        clock.p1 = 2;
+                        clock.p2 = 10;
+                        clock.n = 3;
+                        clock.m1 = 16;
+                        clock.m2 = 8;
+                } else if (adjusted_mode->clock >= 140500
+                                && adjusted_mode->clock <= 200000) {
+                        clock.p1 = 1;
+                        clock.p2 = 10;
+                        clock.n = 6;
+                        clock.m1 = 12;
+                        clock.m2 = 8;
+                }
+        }
+
         if (IS_IGD(dev))
                 fp = (1 << clock.n) << 16 | clock.m1 << 8 | clock.m2;
         else