DSC is not supported on DP MST streams so just don't add this entry for
MST connectors.
This also fixes an OOPS, caused by the encoder->digport cast, which is
not valid for MST encoders.
v2:
- Check encoder, which is unset for an MST connector, before it gets
enabled.
v3:
- Just don't add this debugfs file for MST connectors. (Ville)
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display_debugfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 2b640d8ab9d2..28dd717e943a 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -2218,7 +2218,8 @@ int intel_connector_debugfs_add(struct drm_connector *connector)
}
if (INTEL_GEN(dev_priv) >= 10 &&
- (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+ ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
+ !to_intel_connector(connector)->mst_port) ||
connector->connector_type == DRM_MODE_CONNECTOR_eDP))
debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root,
connector, &i915_dsc_fec_support_fops);
--
2.23.1
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