From: Oleg Vasilev oleg.vasilev@intel.com
Since DP-specific information is stored in driver's structures, every driver needs to implement subconnector property by itself.
v2: rebase
v3: renamed a function call
Cc: Ben Skeggs bskeggs@redhat.com Cc: nouveau@lists.freedesktop.org Signed-off-by: Jeevan B jeevan.b@intel.com Signed-off-by: Oleg Vasilev oleg.vasilev@intel.com Reviewed-by: Emil Velikov emil.velikov@collabora.com --- drivers/gpu/drm/nouveau/nouveau_connector.c | 13 +++++++++++++ drivers/gpu/drm/nouveau/nouveau_dp.c | 9 +++++++++ drivers/gpu/drm/nouveau/nouveau_encoder.h | 1 + 3 files changed, 23 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 7674025..955afed 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -654,6 +654,17 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) pm_runtime_mark_last_busy(dev->dev); pm_runtime_put_autosuspend(dev->dev);
+ if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort || + connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + enum drm_mode_subconnector subconnector = DRM_MODE_SUBCONNECTOR_Unknown; + + if (conn_status == connector_status_connected && nv_encoder) + subconnector = nv_encoder->dp.subconnector; + drm_object_property_set_value(&connector->base, + connector->dev->mode_config.dp_subconnector_property, + subconnector); + } + return conn_status; }
@@ -1390,6 +1401,8 @@ nouveau_connector_create(struct drm_device *dev, kfree(nv_connector); return ERR_PTR(ret); } + + drm_connector_attach_dp_subconnector_property(connector); funcs = &nouveau_connector_funcs; break; default: diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index 8a0f799..3eff884 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -62,6 +62,7 @@ nouveau_dp_detect(struct nouveau_encoder *nv_encoder) struct nouveau_drm *drm = nouveau_drm(dev); struct nvkm_i2c_aux *aux; u8 dpcd[8]; + u8 port_cap[DP_MAX_DOWNSTREAM_PORTS] = {}; int ret;
aux = nv_encoder->aux; @@ -72,6 +73,14 @@ nouveau_dp_detect(struct nouveau_encoder *nv_encoder) if (ret) return ret;
+ if (dpcd[DP_DPCD_REV] > 0x10) { + ret = nvkm_rdaux(aux, DP_DOWNSTREAM_PORT_0, + port_cap, DP_MAX_DOWNSTREAM_PORTS); + if (ret) + memset(port_cap, 0, DP_MAX_DOWNSTREAM_PORTS); + } + nv_encoder->dp.subconnector = drm_dp_subconnector_type(dpcd, port_cap); + nv_encoder->dp.link_bw = 27000 * dpcd[1]; nv_encoder->dp.link_nr = dpcd[2] & DP_MAX_LANE_COUNT_MASK;
diff --git a/drivers/gpu/drm/nouveau/nouveau_encoder.h b/drivers/gpu/drm/nouveau/nouveau_encoder.h index a72c412..49b5c10 100644 --- a/drivers/gpu/drm/nouveau/nouveau_encoder.h +++ b/drivers/gpu/drm/nouveau/nouveau_encoder.h @@ -64,6 +64,7 @@ struct nouveau_encoder { struct nv50_mstm *mstm; int link_nr; int link_bw; + enum drm_mode_subconnector subconnector; } dp; };