drm/radeon/kms: fix interlaced modes on dce4+

[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / radeon / radeon_encoders.c

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index d4a542247618179754a1805e22aefa11161b9432..5b38b73ccd129b273e787943ddd861304f3b45bc 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1570,11 +1570,21 @@ atombios_apply_encoder_quirks(struct drm_encoder *encoder,
        }
 
        /* set scaler clears this on some chips */
-       /* XXX check DCE4 */
-       if (!(radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT))) {
-               if (ASIC_IS_AVIVO(rdev) && (mode->flags & DRM_MODE_FLAG_INTERLACE))
-                       WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset,
-                              AVIVO_D1MODE_INTERLEAVE_EN);
+       if (ASIC_IS_AVIVO(rdev) &&
+           (!(radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)))) {
+               if (ASIC_IS_DCE4(rdev)) {
+                       if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+                               WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset,
+                                      EVERGREEN_INTERLEAVE_EN);
+                       else
+                               WREG32(EVERGREEN_DATA_FORMAT + radeon_crtc->crtc_offset, 0);
+               } else {
+                       if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+                               WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset,
+                                      AVIVO_D1MODE_INTERLEAVE_EN);
+                       else
+                               WREG32(AVIVO_D1MODE_DATA_FORMAT + radeon_crtc->crtc_offset, 0);
+               }
        }
 }