diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index a1ddd9f62bb8..0c6bf82bb059 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -337,6 +337,10 @@ intel_crt_mode_valid(struct drm_connector *connector, (ironlake_get_lanes_required(mode->clock, 270000, 24) > 2)) return MODE_CLOCK_HIGH; + /* HSW/BDW FDI limited to 4k */ + if (mode->hdisplay > 4096) + return MODE_H_ILLEGAL; + return MODE_OK; } @@ -379,6 +383,11 @@ static bool hsw_crt_compute_config(struct intel_encoder *encoder, if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) return false; + /* HSW/BDW FDI limited to 4k */ + if (adjusted_mode->crtc_hdisplay > 4096 || + adjusted_mode->crtc_hblank_start > 4096) + return false; + pipe_config->has_pch_encoder = true; /* LPT FDI RX only supports 8bpc. */ |