[PATCH 03/15] drm/i915/display_debugfs: Allow force joiner only if supported

[Ankit Nautiyal <ankit.k.nautiyal@intel.com>]

Currently we support joiner only for DP encoder.
Do not create the debugfs for joiner if DP does not support the joiner.
This will also help avoiding cases where config has eDP MSO, with which
we do not support joiner.

v2: Check for intel_dp_has_joiner and avoid creating debugfs if not
supported. (Ville)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
 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 86403a9318b0..cda3f6cf724d 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -1516,6 +1516,7 @@ void intel_connector_debugfs_add(struct intel_connector *connector)
 	struct drm_i915_private *i915 = to_i915(connector->base.dev);
 	struct dentry *root = connector->base.debugfs_entry;
 	int connector_type = connector->base.connector_type;
+	struct intel_dp *intel_dp = intel_attached_dp(connector);
 
 	/* The connector must have been registered beforehands. */
 	if (!root)
@@ -1550,7 +1551,7 @@ void intel_connector_debugfs_add(struct intel_connector *connector)
 				    connector, &i915_dsc_fractional_bpp_fops);
 	}
 
-	if (HAS_BIGJOINER(i915) &&
+	if (HAS_BIGJOINER(i915) && intel_dp_has_joiner(intel_dp) &&
 	    (connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
 	     connector_type == DRM_MODE_CONNECTOR_eDP)) {
 		debugfs_create_bool("i915_bigjoiner_force_enable", 0644, root,
-- 
2.45.2