Commit 0bb1ffe4 authored by Ville Syrjälä's avatar Ville Syrjälä

drm/i915/tv: Filter out >1024 wide modes that would need vertical scaling on gen3

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.

v2: s/IS_GEN3(dev_priv/IS_GEN(dev_priv, 3)/
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181112170000.27531-17-ville.syrjala@linux.intel.comReviewed-by: default avatarImre Deak <imre.deak@intel.com>
parent 690157f0
......@@ -1728,6 +1728,7 @@ 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;
......@@ -1740,6 +1741,11 @@ intel_tv_get_modes(struct drm_connector *connector)
!tv_mode->component_only)
continue;
/* no vertical scaling with wide sources on gen3 */
if (IS_GEN(dev_priv, 3) && input->w > 1024 &&
input->h > intel_tv_mode_vdisplay(tv_mode))
continue;
mode = drm_mode_create(connector->dev);
if (!mode)
continue;
......
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