diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-11-27 17:50:27 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2023-12-05 11:43:03 +0300 |
| commit | dd7eb65c493615fda7d459501c3d4a46e00ea5ba (patch) | |
| tree | 43a2574dc2facecaf64b0838ec3b662be0bc7d21 /drivers/gpu/drm/i915 | |
| parent | 7cf82b25dd91d7f330d9df2de868caca14289ba1 (diff) | |
| download | linux-dd7eb65c493615fda7d459501c3d4a46e00ea5ba.tar.xz | |
drm/i915/mst: Reject modes that require the bigjoiner
We have no bigjoiner support in the MST code, so .mode_valid()
pretending otherwise is just going to result black screens for
users. Reject any mode that needs the joiner.
Cc: stable@vger.kernel.org
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Fixes: d51f25eb479a ("drm/i915: Add DSC support to MST path")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127145028.4899-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit 9c058492b16f90bb772cb0dad567e8acc68e155d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_mst.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 1bf21bd9a26b..aa1061262613 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -997,6 +997,10 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector, if (intel_dp_need_bigjoiner(intel_dp, mode->hdisplay, target_clock)) { bigjoiner = true; max_dotclk *= 2; + + /* TODO: add support for bigjoiner */ + *status = MODE_CLOCK_HIGH; + return 0; } if (DISPLAY_VER(dev_priv) >= 10 && |