drm/i915/hdcp: Enable Gen12 HDCP 1.4 DP MST support

Enable HDCP 1.4 over DP MST for Gen12.

v2:
- Enable HDCP for <= Gen12 platforms. [Ram]
v3:
- Connector detials in debug msg. [Ram]

Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-10-anshuman.gupta@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 47beb442094f43128c74437c91235d8bb7a711ad..f76e2c2a83b82a2d0935f8428cd7d798640b5b9a 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -829,12 +829,11 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
        intel_attach_force_audio_property(connector);
        intel_attach_broadcast_rgb_property(connector);
 
-
-       /* TODO: Figure out how to make HDCP work on GEN12+ */
-       if (INTEL_GEN(dev_priv) < 12) {
+       if (INTEL_GEN(dev_priv) <= 12) {
                ret = intel_dp_init_hdcp(dig_port, intel_connector);
                if (ret)
-                       DRM_DEBUG_KMS("HDCP init failed, skipping.\n");
+                       drm_dbg_kms(&dev_priv->drm, "[%s:%d] HDCP MST init failed, skipping.\n",
+                                   connector->name, connector->base.id);
        }
 
        /*