1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index a949b73880c8..b6a9d45fc3c6 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -783,10 +783,12 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
                 ((v_sync_len & 0x30) >> 4);
 
         dtd->part2.dtd_flags = 0x18;
+        if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+                dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
         if (mode->flags & DRM_MODE_FLAG_PHSYNC)
-                dtd->part2.dtd_flags |= 0x2;
+                dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
         if (mode->flags & DRM_MODE_FLAG_PVSYNC)
-                dtd->part2.dtd_flags |= 0x4;
+                dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 
         dtd->part2.sdvo_flags = 0;
         dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
@@ -820,9 +822,11 @@ static void intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
         mode->clock = dtd->part1.clock * 10;
 
         mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
-        if (dtd->part2.dtd_flags & 0x2)
+        if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
+                mode->flags |= DRM_MODE_FLAG_INTERLACE;
+        if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
                 mode->flags |= DRM_MODE_FLAG_PHSYNC;
-        if (dtd->part2.dtd_flags & 0x4)
+        if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
                 mode->flags |= DRM_MODE_FLAG_PVSYNC;
 }