1 files changed, 24 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index ea9022ef15d5..10d1de5bce6f 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -83,8 +83,7 @@ static bool intel_crt_get_hw_state(struct intel_encoder *encoder,
         return true;
 }
 
-static void intel_crt_get_config(struct intel_encoder *encoder,
-                                 struct intel_crtc_config *pipe_config)
+static unsigned int intel_crt_get_flags(struct intel_encoder *encoder)
 {
         struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
         struct intel_crt *crt = intel_encoder_to_crt(encoder);
@@ -102,7 +101,25 @@ static void intel_crt_get_config(struct intel_encoder *encoder,
         else
                 flags |= DRM_MODE_FLAG_NVSYNC;
 
-        pipe_config->adjusted_mode.flags |= flags;
+        return flags;
+}
+
+static void intel_crt_get_config(struct intel_encoder *encoder,
+                                 struct intel_crtc_config *pipe_config)
+{
+        pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder);
+}
+
+static void hsw_crt_get_config(struct intel_encoder *encoder,
+                               struct intel_crtc_config *pipe_config)
+{
+        intel_ddi_get_config(encoder, pipe_config);
+
+        pipe_config->adjusted_mode.flags &= ~(DRM_MODE_FLAG_PHSYNC |
+                                              DRM_MODE_FLAG_NHSYNC |
+                                              DRM_MODE_FLAG_PVSYNC |
+                                              DRM_MODE_FLAG_NVSYNC);
+        pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder);
 }
 
 /* Note: The caller is required to filter out dpms modes not supported by the
@@ -799,7 +816,10 @@ void intel_crt_init(struct drm_device *dev)
         crt->base.mode_set = intel_crt_mode_set;
         crt->base.disable = intel_disable_crt;
         crt->base.enable = intel_enable_crt;
-        crt->base.get_config = intel_crt_get_config;
+        if (IS_HASWELL(dev))
+                crt->base.get_config = hsw_crt_get_config;
+        else
+                crt->base.get_config = intel_crt_get_config;
         if (I915_HAS_HOTPLUG(dev))
                 crt->base.hpd_pin = HPD_CRT;
         if (HAS_DDI(dev))