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From: Oleg Vasilev <oleg.vasilev@intel.com>
To: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Subject: [PATCH v2 5/6] drm/nouveau: utilize subconnector property for DP
Date: Mon, 15 Jul 2019 14:23:33 +0300	[thread overview]
Message-ID: <20190715112408.20114-6-oleg.vasilev@intel.com> (raw)
In-Reply-To: <20190715112408.20114-1-oleg.vasilev@intel.com>

Since DP-specific information is stored in driver's structures, every
driver needs to implement subconnector property by itself.

Signed-off-by: Oleg Vasilev <oleg.vasilev@intel.com>
Cc: nouveau@lists.freedesktop.org
---
 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 4116ee62adaf..728949d803af 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -636,6 +636,17 @@ 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;
 }
 
@@ -1357,6 +1368,8 @@ nouveau_connector_create(struct drm_device *dev,
 			kfree(nv_connector);
 			return ERR_PTR(ret);
 		}
+
+		drm_mode_add_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 0d052e1660f8..7a87b0f808a7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -63,6 +63,7 @@ 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] = {0};
 	int ret;
 
 	aux = nv_encoder->aux;
@@ -73,6 +74,14 @@ 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 3517f920bf89..e17971a30221 100644
--- a/drivers/gpu/drm/nouveau/nouveau_encoder.h
+++ b/drivers/gpu/drm/nouveau/nouveau_encoder.h
@@ -63,6 +63,7 @@ struct nouveau_encoder {
 			struct nv50_mstm *mstm;
 			int link_nr;
 			int link_bw;
+			enum drm_mode_subconnector subconnector;
 		} dp;
 	};
 
-- 
2.22.0

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  parent reply	other threads:[~2019-07-15 11:23 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-01  8:00 [PATCH 1/2] drm: report dp downstream port type as a subconnector property Oleg Vasilev
2019-07-01  8:00 ` [PATCH 2/2] drm/i915: utilize subconnector property for DP Oleg Vasilev
2019-07-02 12:36 ` [Intel-gfx] [PATCH 1/2] drm: report dp downstream port type as a subconnector property Ville Syrjälä
2019-07-02 13:38 ` Emil Velikov
2019-07-03  8:19   ` Vasilev, Oleg
2019-07-03 13:35     ` [Intel-gfx] " Emil Velikov
2019-07-15 11:23 ` Subconnector property for DP downstream type Oleg Vasilev
2019-07-15 11:23   ` [PATCH v2 1/6] drm: move DP_MAX_DOWNSTREAM_PORTS from i915 to drm core Oleg Vasilev
2019-07-15 11:23   ` [PATCH v2 2/6] drm: always determine branch device with drm_dp_is_branch() Oleg Vasilev
2019-07-15 11:23   ` [PATCH v2 3/6] drm: report dp downstream port type as a subconnector property Oleg Vasilev
2019-07-15 11:23   ` [PATCH v2 4/6] drm/i915: utilize subconnector property for DP Oleg Vasilev
2019-07-15 11:23   ` Oleg Vasilev [this message]
2019-07-15 12:15     ` [PATCH v2 5/6] drm/nouveau: " Emil Velikov
     [not found]   ` <20190715112408.20114-1-oleg.vasilev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2019-07-15 11:23     ` [PATCH v2 6/6] drm/amdgpu: " Oleg Vasilev

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