drm/i915/hdcp: Don't enable HDCP2.2 directly from check_link

Whenever LIC fails instead of moving from ENABLED to DESIRED
CP property we directly enable HDCP2.2 without informing the userspace
of this failure in link integrity check.
Now we will just update the value to DESIRED send the event to
userspace and then continue with the normal flow of HDCP enablement.

--v2
-Don't change the function prototype in this function [Ankit]

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240226063051.1685326-4-suraj.kandpal@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 801b8f0..1023153 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -2068,17 +2068,6 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
 
                drm_dbg_kms(&i915->drm,
                            "HDCP2.2 Downstream topology change\n");
-               ret = hdcp2_authenticate_repeater_topology(connector);
-               if (!ret) {
-                       intel_hdcp_update_value(connector,
-                                       DRM_MODE_CONTENT_PROTECTION_ENABLED,
-                                       true);
-                       goto out;
-               }
-               drm_dbg_kms(&i915->drm,
-                           "[CONNECTOR:%d:%s] Repeater topology auth failed.(%d)\n",
-                           connector->base.base.id, connector->base.name,
-                           ret);
        } else {
                drm_dbg_kms(&i915->drm,
                            "[CONNECTOR:%d:%s] HDCP2.2 link failed, retrying auth\n",
@@ -2095,18 +2084,8 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
                goto out;
        }
 
-       ret = _intel_hdcp2_enable(connector);
-       if (ret) {
-               drm_dbg_kms(&i915->drm,
-                           "[CONNECTOR:%d:%s] Failed to enable hdcp2.2 (%d)\n",
-                           connector->base.base.id, connector->base.name,
-                           ret);
-               intel_hdcp_update_value(connector,
-                                       DRM_MODE_CONTENT_PROTECTION_DESIRED,
-                                       true);
-               goto out;
-       }
-
+       intel_hdcp_update_value(connector,
+                               DRM_MODE_CONTENT_PROTECTION_DESIRED, true);
 out:
        mutex_unlock(&dig_port->hdcp_mutex);
        mutex_unlock(&hdcp->mutex);