From: Ville Syrjälä ville.syrjala@linux.intel.com
Since gen3 can't handle >1024 wide sources with vertical scaling let's not advertize such modes in the mode list. Less tempetation to the user to try out things that won't work.
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/intel_tv.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index 7099d837e31a..89c537839273 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -1738,6 +1738,7 @@ intel_tv_set_mode_type(struct drm_display_mode *mode, static int intel_tv_get_modes(struct drm_connector *connector) { + struct drm_i915_private *dev_priv = to_i915(connector->dev); const struct tv_mode *tv_mode = intel_tv_mode_find(connector->state); int i, count = 0;
@@ -1750,6 +1751,11 @@ intel_tv_get_modes(struct drm_connector *connector) !tv_mode->component_only) continue;
+ /* no vertical scaling with wide sources on gen3 */ + if (IS_GEN3(dev_priv) && input->w > 1024 && + input->h > intel_tv_mode_vdisplay(tv_mode)) + continue; + mode = drm_mode_create(connector->dev); if (!mode) continue;