diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_crt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_crt.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index de0e22322c76..072b326d5ee0 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -304,6 +304,9 @@ intel_crt_mode_valid(struct drm_connector *connector, int max_dotclk = dev_priv->max_dotclk_freq; int max_clock; + if (mode->flags & DRM_MODE_FLAG_DBLSCAN) + return MODE_NO_DBLESCAN; + if (mode->clock < 25000) return MODE_CLOCK_LOW; @@ -337,6 +340,12 @@ static bool intel_crt_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) { + struct drm_display_mode *adjusted_mode = + &pipe_config->base.adjusted_mode; + + if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) + return false; + return true; } @@ -344,6 +353,12 @@ static bool pch_crt_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config, struct drm_connector_state *conn_state) { + struct drm_display_mode *adjusted_mode = + &pipe_config->base.adjusted_mode; + + if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) + return false; + pipe_config->has_pch_encoder = true; return true; @@ -354,6 +369,11 @@ static bool hsw_crt_compute_config(struct intel_encoder *encoder, struct drm_connector_state *conn_state) { struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct drm_display_mode *adjusted_mode = + &pipe_config->base.adjusted_mode; + + if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) + return false; pipe_config->has_pch_encoder = true; |