diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dvo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dvo.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index dc532bb61d22..c80fe1f49ede 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -201,6 +201,8 @@ intel_dvo_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { struct intel_dvo *intel_dvo = intel_attached_dvo(connector); + int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; + int target_clock = mode->clock; if (mode->flags & DRM_MODE_FLAG_DBLSCAN) return MODE_NO_DBLESCAN; @@ -212,8 +214,13 @@ intel_dvo_mode_valid(struct drm_connector *connector, return MODE_PANEL; if (mode->vdisplay > intel_dvo->panel_fixed_mode->vdisplay) return MODE_PANEL; + + target_clock = intel_dvo->panel_fixed_mode->clock; } + if (target_clock > max_dotclk) + return MODE_CLOCK_HIGH; + return intel_dvo->dev.dev_ops->mode_valid(&intel_dvo->dev, mode); } |