>-----Original Message----- >From: dri-devel [mailto:dri-devel-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of >Ramalingam C >Sent: Tuesday, April 3, 2018 7:28 PM >To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; >seanpaul@xxxxxxxxxxxx; daniel@xxxxxxxx; chris@xxxxxxxxxxxxxxxxxx; >jani.nikula@xxxxxxxxxxxxxxx; Winkler, Tomas <tomas.winkler@xxxxxxxxx>; >Usyskin, Alexander <alexander.usyskin@xxxxxxxxx> >Cc: Vivi, Rodrigo <rodrigo.vivi@xxxxxxxxx> >Subject: [PATCH v3 28/40] drm/i915: Handle HDCP2.2 downstream topology >change > >When repeater notifies a downstream topology change, this patch >reauthenticate the repeater alone with out disabling the hdcp encryption. If that Don’t leave a space b/w with and out. With that fix. Reviewed-by: Uma Shankar <uma.shankar@xxxxxxxxx> >fails then complete reauthentication is executed. > >v2: > Rebased. >v3: > No Changes. > >Signed-off-by: Ramalingam C <ramalingam.c@xxxxxxxxx> >--- > drivers/gpu/drm/i915/intel_hdcp.c | 19 +++++++++++++++++-- > 1 file changed, 17 insertions(+), 2 deletions(-) > >diff --git a/drivers/gpu/drm/i915/intel_hdcp.c >b/drivers/gpu/drm/i915/intel_hdcp.c >index e2aec73aefe3..fd30e2b1ddc3 100644 >--- a/drivers/gpu/drm/i915/intel_hdcp.c >+++ b/drivers/gpu/drm/i915/intel_hdcp.c >@@ -1497,8 +1497,23 @@ static int intel_hdcp2_check_link(struct >intel_connector *connector) > goto out; > } > >- DRM_INFO("[%s:%d] HDCP2.2 link failed, retrying authentication\n", >- connector->base.name, connector->base.base.id); >+ if (ret == DRM_HDCP_TOPOLOGY_CHANGE) { >+ if (hdcp->hdcp_value == >DRM_MODE_CONTENT_PROTECTION_UNDESIRED) >+ goto out; >+ >+ DRM_DEBUG_KMS("HDCP2.2 Downstream topology change\n"); >+ ret = hdcp2_authenticate_repeater_topology(connector); >+ if (!ret) { >+ hdcp->hdcp_value = >DRM_MODE_CONTENT_PROTECTION_ENABLED; >+ schedule_work(&hdcp->hdcp_prop_work); >+ goto out; >+ } >+ DRM_ERROR("[%s:%d] Repeater topology auth failed.(%d)\n", >+ connector->base.name, connector->base.base.id, ret); >+ } else { >+ DRM_ERROR("[%s:%d] HDCP2.2 link failed, retrying auth\n", >+ connector->base.name, connector->base.base.id); >+ } > > ret = _intel_hdcp2_disable(connector); > if (ret) { >-- >2.7.4 > >_______________________________________________ >dri-devel mailing list >dri-devel@xxxxxxxxxxxxxxxxxxxxx >https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
