diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 44318bf8e7b..e061acdde45 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3671,6 +3671,13 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) drm_mode_set_crtcinfo(adjusted_mode, 0); + /* WaPruneModeWithIncorrectHsyncOffset: Cantiga+ cannot handle modes + * with a hsync front porch of 0. + */ + if ((INTEL_INFO(dev)->gen > 4 || IS_G4X(dev)) && + adjusted_mode->hsync_start == adjusted_mode->hdisplay) + return false; + return true; } |