[Intel-gfx] [PATCH 2/2] drm/i915: properly handle interlaced bit for sdvo dtd conversion

[Daniel Vetter]

Maybe this make someone happy, because I'm pretty sure interlaced on
sdvo won't work without this.

Signed-Off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_sdvo.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 457329c..413da30 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -778,6 +778,8 @@ 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 |= 0x1;
 	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
 		dtd->part2.dtd_flags |= 0x2;
 	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
@@ -815,6 +817,8 @@ 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 & 0x1)
+		mode->flags |= DRM_MODE_FLAG_INTERLACE;
 	if (dtd->part2.dtd_flags & 0x2)
 		mode->flags |= DRM_MODE_FLAG_PHSYNC;
 	if (dtd->part2.dtd_flags & 0x4)
-- 
1.7.10